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netradiant-custom/radiant/selection_mtor_uv.cpp
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Garux 5535babca9 split selection.cpp
2026-01-03 20:27:45 +05:00

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/*
Copyright (C) 2001-2006, William Joseph.
All Rights Reserved.
This file is part of GtkRadiant.
GtkRadiant is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GtkRadiant is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "selection_mtor_uv.h"
#include "selection_.h"
#include "selection_render.h"
#include "selection_volume.h"
#include "brush.h"
#include "patch.h"
#include "iglrender.h"
class UVManipulatorImpl final : public UVManipulator, public Manipulatable
{
struct RenderablePoints : public OpenGLRenderable
{
std::vector<PointVertex> m_points;
void render( RenderStateFlags state ) const override {
gl().glColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( PointVertex ), &m_points[0].colour );
gl().glVertexPointer( 3, GL_FLOAT, sizeof( PointVertex ), &m_points[0].vertex );
gl().glDrawArrays( GL_POINTS, 0, m_points.size() );
}
};
struct RenderableLines : public OpenGLRenderable
{
std::vector<PointVertex> m_lines;
void render( RenderStateFlags state ) const override {
if( m_lines.size() != 0 ){
gl().glColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( PointVertex ), &m_lines[0].colour );
gl().glVertexPointer( 3, GL_FLOAT, sizeof( PointVertex ), &m_lines[0].vertex );
gl().glDrawArrays( GL_LINES, 0, m_lines.size() );
}
}
};
typedef Array<PatchControl> PatchControlArray;
struct RenderablePatchTexture : public OpenGLRenderable
{
std::vector<RenderIndex> m_trianglesIndices;
const PatchControlArray* m_patchControlArray;
void render( RenderStateFlags state ) const override {
if( state & RENDER_FILL ){
const std::vector<Vector3> normals( m_patchControlArray->size(), g_vector3_axis_z );
gl().glNormalPointer( GL_FLOAT, sizeof( Vector3 ), normals.data() );
gl().glVertexPointer( 2, GL_FLOAT, sizeof( PatchControl ), &m_patchControlArray->data()->m_texcoord );
gl().glTexCoordPointer( 2, GL_FLOAT, sizeof( PatchControl ), &m_patchControlArray->data()->m_texcoord );
gl().glDrawElements( GL_TRIANGLES, GLsizei( m_trianglesIndices.size() ), RenderIndexTypeID, m_trianglesIndices.data() );
}
}
};
const Colour4b m_cWhite { 255, 255, 255, 255 };
const Colour4b m_cGray { 255, 255, 255, 125 };
const Colour4b m_cGrayer{ 100, 100, 100, 150 };
const Colour4b m_cRed { 255, 0, 0, 255 };
const Colour4b m_cGreen { 0, 255, 0, 255 };
const Colour4b m_cGree { 0, 150, 0, 255 };
const Colour4b m_cPink { 255, 0, 255, 255 };
const Colour4b m_cPin { 150, 0, 150, 255 };
const Colour4b m_cOrange{ 255, 125, 0, 255 };
const Colour4b m_cOrang { 255, 125, 0, 125 };
enum EUVSelection{
eNone,
ePivot,
eGridU,
eGridV,
ePatchPoint,
ePatchRow,
ePatchColumn,
eCircle,
ePivotU,
ePivotV,
eU,
eV,
eUV,
eSkewU,
eSkewV,
eTex,
} m_selection;
PointVertex* m_selectedU = 0; // must nullify this on m_Ulines, m_Vlines change
PointVertex* m_selectedV = 0;
int m_selectedPatchIndex = -1;
bool m_isSelected = false;
class UVSelector : public Selector {
SelectionIntersection m_bestIntersection;
public:
EUVSelection m_selection = eNone;
int m_index = -1;
UVSelector() : m_bestIntersection( SelectionIntersection() ) {
}
void pushSelectable( Selectable& selectable ) override {
}
void popSelectable() override {
m_bestIntersection = SelectionIntersection();
}
void addIntersection( const SelectionIntersection& intersection ) override {
if( SelectionIntersection_closer( intersection, m_bestIntersection ) ) {
m_bestIntersection = intersection;
}
}
void addIntersection( const SelectionIntersection& intersection, EUVSelection selection, int index ) {
if( SelectionIntersection_closer( intersection, m_bestIntersection ) ) {
m_bestIntersection = intersection;
m_selection = selection;
m_index = index;
}
}
void addIntersection( const SelectionIntersection& intersection, EUVSelection selection ) {
if( SelectionIntersection_closer( intersection, m_bestIntersection ) ) {
m_bestIntersection = intersection;
m_selection = selection;
}
}
bool isSelected() {
return m_bestIntersection.valid();
}
};
Face* m_face = 0;
Plane3 m_plane;
std::size_t m_width, m_height;
TextureProjection m_projection;
Matrix4 m_local2tex; //real projection
Matrix4 m_tex2local; //real unprojection aka projection space basis aka texture axes
Matrix4 m_faceLocal2tex; //x,y projected to the face for z = const
Matrix4 m_faceTex2local;
Vector3 m_origin;
RenderablePivot m_pivot;
Matrix4 m_pivot2world0; // original
Matrix4 m_pivot2world; // transformed during transformation
RenderablePoint m_pivotPoint;
RenderableLines m_pivotLines;
Matrix4 m_pivotLines2world;
/* lines in uv space */
RenderableLines m_Ulines;
RenderableLines m_Vlines;
Matrix4 m_lines2world; // line * ( transform during transformation ) * m_faceTex2local = world
unsigned int m_gridU = 1; // n - 1 of U directed sub lines, 1-16
unsigned int m_gridV = 1;
RenderablePoint m_gridPointU; // control of U grid lines density, rendered on V axis
RenderablePoint m_gridPointV;
Vector2 m_gridSign; // orientation of controls relative to origin
RenderableCircle m_circle;
Matrix4 m_circle2world;
Patch* m_patch = 0; //tracking face/patch mode by only nonzero pointer
std::size_t m_patchWidth;
std::size_t m_patchHeight;
PatchControlArray m_patchCtrl;
RenderablePoints m_patchRenderPoints;
RenderableLines m_patchRenderLattice;
RenderablePatchTexture m_patchRenderTex;
const Shader* m_state_patch_raw = 0; // original patch texture shader
Shader* m_state_patch = 0; // local patch texture overlay
const char* m_state_patch_name = "$uvtool/patchtexture";
public:
UVManipulatorImpl() : m_pivot( 32 ), m_circle( 8 << 3 ) {
draw_circle( 8, 1, m_circle.m_vertices.data(), RemapXYZ() );
m_circle.setColour( m_cGray );
m_pivotPoint.setColour( m_cWhite );
m_gridPointU.setColour( m_cWhite );
m_gridPointV.setColour( m_cWhite );
m_pivotLines.m_lines.resize( 4, PointVertex( vertex3f_identity, m_cWhite ) );
}
~UVManipulatorImpl() {
patchShaderDestroy();
}
private:
void patchShaderConstruct(){
patchShaderDestroy();
OpenGLState state;
GlobalOpenGLStateLibrary().getDefaultState( state );
state.m_state = RENDER_FILL /*| RENDER_CULLFACE*/ | RENDER_TEXTURE | RENDER_COLOURWRITE | RENDER_LIGHTING | RENDER_SMOOTH;
state.m_sort = OpenGLState::eSortOverlayLast;
state.m_texture = m_patch->getShader()->getTexture().texture_number;
GlobalOpenGLStateLibrary().insert( m_state_patch_name, state );
m_state_patch = GlobalShaderCache().capture( m_state_patch_name );
}
void patchShaderDestroy(){
if( m_state_patch ){
m_state_patch = 0;
GlobalShaderCache().release( m_state_patch_name );
GlobalOpenGLStateLibrary().erase( m_state_patch_name );
}
}
bool patchCtrl_isInside( std::size_t i ) const {
return ( i % 2 || ( i / m_patchWidth ) % 2 );
}
template<typename Functor>
void forEachEdge( const Functor& functor ) const {
if( m_face ){
const Winding& winding = m_face->getWinding();
for( Winding::const_iterator next = winding.begin(), i = winding.end() - 1; next != winding.end(); i = next, ++next )
functor( ( *i ).vertex, ( *next ).vertex );
}
else if( m_patch ){
for( std::vector<PointVertex>::const_iterator i = m_patchRenderLattice.m_lines.begin(); i != m_patchRenderLattice.m_lines.end(); ++++i ){
const Vector3 p0( matrix4_transformed_point( m_faceTex2local, ( *i ).vertex ) );
const Vector3 p1( matrix4_transformed_point( m_faceTex2local, ( *( i + 1 ) ).vertex ) );
if( vector3_length_squared( p1 - p0 ) > 0.1 )
functor( p0, p1 );
}
}
}
template<typename Functor>
void forEachPoint( const Functor& functor ) const {
if( m_face ){
const Winding& winding = m_face->getWinding();
for( const auto& v : winding )
functor( v.vertex );
}
else if( m_patch ){
for( const auto& v : m_patchCtrl )
functor( matrix4_transformed_point( m_faceTex2local, Vector3( v.m_texcoord, 0 ) ) );
}
}
template<typename Functor>
void forEachUVPoint( const Functor& functor ) const {
if( m_face ){
const Winding& winding = m_face->getWinding();
for( const auto& v : winding )
functor( matrix4_transformed_point( m_faceLocal2tex, v.vertex ) );
}
else if( m_patch ){
for( const auto& v : m_patchCtrl )
functor( Vector3( v.m_texcoord, 0 ) );
}
}
bool projection_valid() const {
return !( !std::isfinite( m_local2tex[0] ) //nan
|| !std::isfinite( m_tex2local[0] ) //nan
|| std::fabs( vector3_dot( m_plane.normal(), m_tex2local.z().vec3() ) ) < 1e-6 //projected along face
|| vector3_length_squared( m_tex2local.x().vec3() ) < .01 //srsly scaled down, limit at max 10 textures per world unit
|| vector3_length_squared( m_tex2local.y().vec3() ) < .01
|| vector3_length_squared( m_tex2local.x().vec3() ) > 1e9 //very upscaled or product of nearly nan
|| vector3_length_squared( m_tex2local.y().vec3() ) > 1e9 );
}
void UpdateFaceData( bool updateOrigin, bool updateLines = true ) {
//!? todo fewer outer quads for large textures
//!? todo auto subdivisions num, based on tex size and world scale
//! todo update on undo/redo, when face stays the same, but transformed
//! todo update on nudgeSelectedLeft and the rest, qe tool move w/o projection change or with tex lock off
//+ todo put default origin to winding's UV aabb corner
//+ todo disable 3d workzone in this manipulator mode
if( m_face ){
m_plane = m_face->getPlane().plane3();
m_width = m_face->getShader().width();
m_height = m_face->getShader().height();
// m_face->GetTexdef( m_projection );
m_projection = m_face->getTexdef().m_projection;
Texdef_Construct_local2tex( m_projection, m_width, m_height, m_plane.normal(), m_local2tex );
m_tex2local = matrix4_affine_inverse( m_local2tex );
}
else if( m_patch ){
m_plane.normal() = m_patch->Calculate_AvgNormal();
m_plane.dist() = vector3_dot( m_plane.normal(), m_patch->localAABB().origin );
m_patchWidth = m_patch->getWidth();
m_patchHeight = m_patch->getHeight();
m_patchCtrl = m_patch->getControlPoints();
m_state_patch_raw = m_patch->getShader();
patchShaderConstruct();
{ //! todo force or deduce orthogonal uv axes for convenience
Vector3 wDir, hDir;
m_patch->Calculate_AvgAxes( wDir, hDir );
vector3_normalise( wDir );
vector3_normalise( hDir );
// globalOutputStream() << wDir << " wDir\n";
// globalOutputStream() << hDir << " hDir\n";
// globalOutputStream() << m_plane.normal() << " m_plane.normal()\n";
/* find longest row and column */
float wLength = 0, hLength = 0; //!? todo break, if some of these is 0
std::size_t row = 0, col = 0;
for ( std::size_t r = 0; r < m_patchHeight; ++r ){
float length = 0;
for ( std::size_t c = 0; c < m_patchWidth - 1; ++c ){
length += vector3_length( m_patch->ctrlAt( r, c + 1 ).m_vertex - m_patch->ctrlAt( r, c ).m_vertex );
}
if( length - wLength > .1f || ( ( r == 0 || r == m_patchHeight - 1 ) && float_equal_epsilon( length, wLength, .1f ) ) ){ // prioritize first and last rows
wLength = length;
row = r;
}
}
for ( std::size_t c = 0; c < m_patchWidth; ++c ){
float length = 0;
for ( std::size_t r = 0; r < m_patchHeight - 1; ++r ){
length += vector3_length( m_patch->ctrlAt( r + 1, c ).m_vertex - m_patch->ctrlAt( r, c ).m_vertex );
}
if( length - hLength > .1f || ( ( c == 0 || c == m_patchWidth - 1 ) && float_equal_epsilon( length, hLength, .1f ) ) ){
hLength = length;
col = c;
}
}
//! todo handle case, when uv start = end, like projection to cylinder
//! todo consider max uv length to have manipulator size according to patch size
/* pick 3 points at the found row and column */
const PatchControl* p0, *p1, *p2;
Vector3 v0, v1, v2;
{
float distW0 = 0, distW1 = 0;
for ( std::size_t c = 0; c < col; ++c ){
distW0 += vector3_length( m_patch->ctrlAt( row, c + 1 ).m_vertex - m_patch->ctrlAt( row, c ).m_vertex );
}
for ( std::size_t c = col; c < m_patchWidth - 1; ++c ){
distW1 += vector3_length( m_patch->ctrlAt( row, c + 1 ).m_vertex - m_patch->ctrlAt( row, c ).m_vertex );
}
float distH0 = 0, distH1 = 0;
for ( std::size_t r = 0; r < row; ++r ){
distH0 += vector3_length( m_patch->ctrlAt( r + 1, col ).m_vertex - m_patch->ctrlAt( r, col ).m_vertex );
}
for ( std::size_t r = row; r < m_patchHeight - 1; ++r ){
distH1 += vector3_length( m_patch->ctrlAt( r + 1, col ).m_vertex - m_patch->ctrlAt( r, col ).m_vertex );
}
if( ( distW0 > distH0 && distW0 > distH1 ) || ( distW1 > distH0 && distW1 > distH1 ) ){
p0 = &m_patch->ctrlAt( 0, col );
p1 = &m_patch->ctrlAt( m_patchHeight - 1, col );
p2 = distW0 > distW1? &m_patch->ctrlAt( row, 0 ) : &m_patch->ctrlAt( row, m_patchWidth - 1 );
v0 = m_patch->localAABB().origin
+ hDir * vector3_dot( m_patch->localAABB().extents, Vector3( std::fabs( hDir.x() ), std::fabs( hDir.y() ), std::fabs( hDir.z() ) ) ) * 1.1
+ wDir * ( distW0 - wLength / 2 );
v1 = v0 + hDir * hLength;
v2 = v0 + hDir * distH0 + ( distW0 > distW1? ( wDir * -distW0 ) : ( wDir * distW1 ) );
}
else{
p0 = &m_patch->ctrlAt( row, 0 );
p1 = &m_patch->ctrlAt( row, m_patchWidth - 1 );
p2 = distH0 > distH1? &m_patch->ctrlAt( 0, col ) : &m_patch->ctrlAt( m_patchHeight - 1, col );
v0 = m_patch->localAABB().origin
+ wDir * vector3_dot( m_patch->localAABB().extents, Vector3( std::fabs( wDir.x() ), std::fabs( wDir.y() ), std::fabs( wDir.z() ) ) ) * 1.1
+ hDir * ( distH0 - hLength / 2 );
v1 = v0 + wDir * wLength;
v2 = v0 + wDir * distW0 + ( distH0 > distH1? ( hDir * -distH0 ) : ( hDir * distH1 ) );
}
if( vector3_dot( plane3_for_points( v0, v1, v2 ).normal(), m_plane.normal() ) < 0 ){
std::swap( p0, p1 );
std::swap( v0, v1 );
}
}
const PlanePoints vertices{ v0, v1, v2 };
const DoubleVector3 sts[3]{ DoubleVector3( p0->m_texcoord, 0 ),
DoubleVector3( p1->m_texcoord, 0 ),
DoubleVector3( p2->m_texcoord, 0 ) };
Texdef_Construct_local2tex_from_ST( vertices, sts, m_local2tex );
m_tex2local = matrix4_affine_inverse( m_local2tex );
}
}
// globalOutputStream() << m_local2tex << " m_local2tex\n";
// globalOutputStream() << m_tex2local << " m_tex2local\n";
/* error checking */
if( !projection_valid() ){
m_selectedU = m_selectedV = 0;
m_Ulines.m_lines.clear();
m_Vlines.m_lines.clear();
m_selectedPatchIndex = -1;
return;
}
m_faceTex2local = m_tex2local;
m_faceTex2local.x().vec3() = plane3_project_point( Plane3( m_plane.normal(), 0 ), m_tex2local.x().vec3(), m_tex2local.z().vec3() );
m_faceTex2local.y().vec3() = plane3_project_point( Plane3( m_plane.normal(), 0 ), m_tex2local.y().vec3(), m_tex2local.z().vec3() );
m_faceTex2local = matrix4_multiplied_by_matrix4( // adjust to have UV's z = 0: move the plane along m_tex2local.z() so that plane.dist() = 0
matrix4_translation_for_vec3(
m_tex2local.z().vec3() * ( m_plane.dist() - vector3_dot( m_plane.normal(), m_tex2local.t().vec3() ) )
/ vector3_dot( m_plane.normal(), m_tex2local.z().vec3() )
),
m_faceTex2local );
m_faceLocal2tex = matrix4_affine_inverse( m_faceTex2local );
if( m_patch ){
m_patchRenderPoints.m_points.clear();
m_patchRenderPoints.m_points.reserve( m_patchWidth * m_patchHeight );
for( std::size_t i = 0; i < m_patchCtrl.size(); ++i ){
m_patchRenderPoints.m_points.emplace_back( vertex3f_for_vector3( Vector3( m_patchCtrl[i].m_texcoord, 0 ) ), patchCtrl_isInside( i )? m_cPin : m_cGree );
}
m_patchRenderLattice.m_lines.clear();
m_patchRenderLattice.m_lines.reserve( ( ( m_patchWidth - 1 ) * m_patchHeight + ( m_patchHeight - 1 ) * m_patchWidth ) * 2 );
for ( std::size_t r = 0; r < m_patchHeight; ++r ){
for ( std::size_t c = 0; c < m_patchWidth - 1; ++c ){
const Vector2& a = m_patch->ctrlAt( r, c ).m_texcoord;
const Vector2& b = m_patch->ctrlAt( r, c + 1 ).m_texcoord;
m_patchRenderLattice.m_lines.emplace_back( vertex3f_for_vector3( Vector3( a, 0 ) ), m_cOrang );
m_patchRenderLattice.m_lines.emplace_back( vertex3f_for_vector3( Vector3( b, 0 ) ), m_cOrang );
}
}
for ( std::size_t c = 0; c < m_patchWidth; ++c ){
for ( std::size_t r = 0; r < m_patchHeight - 1; ++r ){
const Vector2& a = m_patch->ctrlAt( r, c ).m_texcoord;
const Vector2& b = m_patch->ctrlAt( r + 1, c ).m_texcoord;
m_patchRenderLattice.m_lines.emplace_back( vertex3f_for_vector3( Vector3( a, 0 ) ), m_cOrang );
m_patchRenderLattice.m_lines.emplace_back( vertex3f_for_vector3( Vector3( b, 0 ) ), m_cOrang );
}
}
m_patchRenderTex.m_trianglesIndices.clear();
m_patchRenderTex.m_trianglesIndices.reserve( ( m_patchHeight - 1 ) * ( m_patchWidth - 1 ) * 2 * 3 );
const PatchControlArray& pc = m_patch->getControlPointsTransformed();
m_patchRenderTex.m_patchControlArray = &pc;
const double degenerate_epsilon = 1e-5;
for ( std::size_t r = 0; r < m_patchHeight - 1; ++r ){
for ( std::size_t c = 0; c < m_patchWidth - 1; ++c ){
const RenderIndex i0 = m_patchWidth * r + c;
const RenderIndex i1 = m_patchWidth * ( r + 1 ) + c;
const RenderIndex i2 = m_patchWidth * ( r + 1 ) + c + 1;
const RenderIndex i3 = m_patchWidth * r + c + 1;
double cross = vector2_cross( pc[i2].m_texcoord - pc[i0].m_texcoord, pc[i1].m_texcoord - pc[i0].m_texcoord );
if( !float_equal_epsilon( cross, 0, degenerate_epsilon ) ){
m_patchRenderTex.m_trianglesIndices.push_back( i0 );
m_patchRenderTex.m_trianglesIndices.push_back( i1 );
m_patchRenderTex.m_trianglesIndices.push_back( i2 );
if( cross < 0 )
std::swap( *( m_patchRenderTex.m_trianglesIndices.end() - 1 ), *( m_patchRenderTex.m_trianglesIndices.end() - 2 ) );
}
cross = vector2_cross( pc[i3].m_texcoord - pc[i0].m_texcoord, pc[i2].m_texcoord - pc[i0].m_texcoord );
if( !float_equal_epsilon( cross, 0, degenerate_epsilon ) ){
m_patchRenderTex.m_trianglesIndices.push_back( i0 );
m_patchRenderTex.m_trianglesIndices.push_back( i2 );
m_patchRenderTex.m_trianglesIndices.push_back( i3 );
if( cross < 0 )
std::swap( *( m_patchRenderTex.m_trianglesIndices.end() - 1 ), *( m_patchRenderTex.m_trianglesIndices.end() - 2 ) );
}
}
}
if( m_patchRenderTex.m_trianglesIndices.size() == 0 ){ // try to make at least one triangle or more
RenderIndex i0 = 0, i1 = 1, i2;
for( ; i1 < pc.size(); ++i1 ){
if( vector2_length( pc[i1].m_texcoord - pc[i0].m_texcoord ) > degenerate_epsilon ){
i2 = i1 + 1;
for( ; i2 < pc.size(); ++i2 ){
const double cross = vector2_cross( pc[i2].m_texcoord - pc[i0].m_texcoord, pc[i1].m_texcoord - pc[i0].m_texcoord );
if( !float_equal_epsilon( cross, 0, degenerate_epsilon ) ){
m_patchRenderTex.m_trianglesIndices.push_back( i0 );
m_patchRenderTex.m_trianglesIndices.push_back( i1 );
m_patchRenderTex.m_trianglesIndices.push_back( i2 );
if( cross < 0 )
std::swap( *( m_patchRenderTex.m_trianglesIndices.end() - 1 ), *( m_patchRenderTex.m_trianglesIndices.end() - 2 ) );
break;
}
}
}
}
}
}
Vector2 min( FLT_MAX, FLT_MAX );
Vector2 max( -FLT_MAX, -FLT_MAX );
forEachUVPoint( [&]( const Vector3& point ){
min.x() = std::min( min.x(), point.x() );
max.x() = std::max( max.x(), point.x() );
min.y() = std::min( min.y(), point.y() );
max.y() = std::max( max.y(), point.y() );
} );
if( updateOrigin )
m_origin = matrix4_transformed_point( m_faceTex2local, Vector3( min, 0 ) );
const Vector3 uv_origin = matrix4_transformed_point( m_faceLocal2tex, m_origin );
{ // grid grain controls, on the polygon side of origin
m_gridSign.x() = max.y() - uv_origin.y() >= uv_origin.y() - min.y()? 1 : -1;
m_gridSign.y() = max.x() - uv_origin.x() >= uv_origin.x() - min.x()? 1 : -1;
m_gridPointU.m_point.vertex = Vertex3f( uv_origin.x(),
float_to_integer( uv_origin.y() + m_gridSign.x() * .25 ) + m_gridSign.x() * ( 1 - 1.0 / std::max( float( m_gridU ), 1.8f ) ),
0 );
m_gridPointV.m_point.vertex = Vertex3f( float_to_integer( uv_origin.x() + m_gridSign.y() * .25 ) + m_gridSign.y() * ( 1 - 1.0 / std::max( float( m_gridV ), 1.8f ) ),
uv_origin.y(),
0 );
}
m_pivot2world = m_tex2local;
vector3_normalise( m_pivot2world.x().vec3() );
vector3_normalise( m_pivot2world.y().vec3() );
m_pivot2world.t().vec3() = m_origin;
m_pivot2world0 = m_pivot2world;
{
float bestDist = 0;
forEachPoint( [&]( const Vector3& point ){
const float dist = vector3_length_squared( point - m_origin );
if( dist > bestDist ){
bestDist = dist;
}
} );
bestDist = sqrt( bestDist );
m_circle2world = g_matrix4_identity;
ComputeAxisBase( m_plane.normal(), m_circle2world.x().vec3(), m_circle2world.y().vec3() );
m_circle2world.x().vec3() *= bestDist;
m_circle2world.y().vec3() *= bestDist;
m_circle2world.z().vec3() = m_plane.normal();
m_circle2world.t().vec3() = m_origin;
}
min -= Vector2( 5, 5 );
max += Vector2( 5, 5 );
min.x() = float_to_integer( min.x() );
min.y() = float_to_integer( min.y() );
max.x() = float_to_integer( max.x() );
max.y() = float_to_integer( max.y() );
m_selectedU = m_selectedV = 0;
m_selectedPatchIndex = -1;
m_lines2world = m_faceTex2local;
m_pivotLines2world = m_faceTex2local;
if( updateLines ){
const int imax = float_to_integer( max.y() - min.y() ) + 1;
m_Ulines.m_lines.clear();
m_Ulines.m_lines.reserve( ( imax + ( m_gridU - 1 ) * ( imax - 1 ) ) * 2 );
for( int i = 0; i < imax; ++i ){
if( i != 0 ){
for( std::size_t j = m_gridU - 1; j != 0; --j ){ //subgrid lines
m_Ulines.m_lines.emplace_back( Vertex3f( min.x(), min.y() + i - static_cast<float>( j ) / m_gridU, 0 ), m_cGrayer );
m_Ulines.m_lines.emplace_back( Vertex3f( max.x(), min.y() + i - static_cast<float>( j ) / m_gridU, 0 ), m_cGrayer );
}
}
m_Ulines.m_lines.emplace_back( Vertex3f( min.x(), min.y() + i, 0 ), m_cGray );
m_Ulines.m_lines.emplace_back( Vertex3f( max.x(), min.y() + i, 0 ), m_cGray );
}
}
if( updateLines ){
const int imax = float_to_integer( max.x() - min.x() ) + 1;
m_Vlines.m_lines.clear();
m_Vlines.m_lines.reserve( ( imax + ( m_gridV - 1 ) * ( imax - 1 ) ) * 2 );
for( int i = 0; i < imax; ++i ){
if( i != 0 ){
for( std::size_t j = m_gridV - 1; j != 0; --j ){
m_Vlines.m_lines.emplace_back( Vertex3f( min.x() + i - static_cast<float>( j ) / m_gridV, min.y(), 0 ), m_cGrayer );
m_Vlines.m_lines.emplace_back( Vertex3f( min.x() + i - static_cast<float>( j ) / m_gridV, max.y(), 0 ), m_cGrayer );
}
}
m_Vlines.m_lines.emplace_back( Vertex3f( min.x() + i, min.y(), 0 ), m_cGray );
m_Vlines.m_lines.emplace_back( Vertex3f( min.x() + i, max.y(), 0 ), m_cGray );
}
}
{
{ // u pivot line
m_pivotLines.m_lines[0].vertex = Vertex3f( min.x(), uv_origin.y(), 0 );
m_pivotLines.m_lines[1].vertex = Vertex3f( max.x(), uv_origin.y(), 0 );
}
{ // v pivot line
m_pivotLines.m_lines[2].vertex = Vertex3f( uv_origin.x(), min.y(), 0 );
m_pivotLines.m_lines[3].vertex = Vertex3f( uv_origin.x(), max.y(), 0 );
}
}
}
bool UpdateData() {
if( !g_SelectedFaceInstances.empty() ){
Face* face = &g_SelectedFaceInstances.last().getFace();
if( m_face != face ){
m_face = face;
m_patch = 0;
UpdateFaceData( true );
}
else if( memcmp( &m_projection, &m_face->getTexdef().m_projection, sizeof( TextureProjection ) ) != 0
|| m_width != m_face->getShader().width()
|| m_height != m_face->getShader().height() ) {
UpdateFaceData( !projection_valid() ); // updateOrigin when prev state was invalid on the same face
}
return projection_valid();
}
else if( GlobalSelectionSystem().countSelected() != 0 ){
Patch* patch = Node_getPatch( GlobalSelectionSystem().ultimateSelected().path().top() );
if( patch ){
if( m_patch != patch ){
m_patch = patch;
m_face = 0;
UpdateFaceData( true );
}
else if( m_patchWidth != m_patch->getWidth()
|| m_patchHeight != m_patch->getHeight()
|| memcmp( m_patchCtrl.data(), m_patch->getControlPoints().data(), sizeof( *m_patchCtrl.data() ) * m_patchCtrl.size() ) != 0
|| m_state_patch_raw != m_patch->getShader() ){
UpdateFaceData( !projection_valid() ); // updateOrigin when prev state was invalid on the same patch
}
return projection_valid();
}
}
return false;
}
public:
void render( Renderer& renderer, const VolumeTest& volume, const Matrix4& pivot2world ) override {
if( volume.fill() && UpdateData() ){
if( m_patch ){
renderer.SetState( const_cast<Shader*>( m_state_patch ), Renderer::eFullMaterials );
renderer.addRenderable( m_patchRenderTex, m_lines2world );
}
renderer.SetState( m_state_line, Renderer::eFullMaterials );
renderer.addRenderable( m_Ulines, m_lines2world );
renderer.addRenderable( m_Vlines, m_lines2world );
renderer.addRenderable( m_pivotLines, m_pivotLines2world );
if( m_patch )
renderer.addRenderable( m_patchRenderLattice, m_faceTex2local );
//fix pivot position for better visibility
m_pivot.render( renderer, volume, matrix4_multiplied_by_matrix4( matrix4_translation_for_vec3( vector3_normalised( volume.getViewer() - m_origin ) ), m_pivot2world ) );
renderer.addRenderable( m_circle, m_circle2world );
renderer.SetState( m_state_point, Renderer::eFullMaterials );
if( m_patch )
renderer.addRenderable( m_patchRenderPoints, m_faceTex2local );
renderer.addRenderable( m_pivotPoint, m_pivot2world );
renderer.addRenderable( m_gridPointU, m_pivotLines2world );
renderer.addRenderable( m_gridPointV, m_pivotLines2world );
}
}
void testSelect( const View& view, const Matrix4& pivot2world ) override {
//!? todo fix: eUV selection possibility may be blocked by the circle
if( !view.fill() || !UpdateData() ){
m_isSelected = false;
return;
}
UVSelector selector;
if( g_modifiers == c_modifierAlt ) // only try skew with alt // note also grabs eTex
goto testSelectUVlines;
if( g_modifiers != c_modifierNone )
return applySelection( selector.m_selection, nullptr, nullptr, selector.m_index );
{ // try pivot point
const Matrix4 local2view( matrix4_multiplied_by_matrix4( view.GetViewMatrix(), m_pivot2world ) );
SelectionIntersection best;
Point_BestPoint( local2view, m_pivotPoint.m_point.vertex, best );
selector.addIntersection( best, ePivot );
}
if( !selector.isSelected() ){ // try grid control points
const Matrix4 local2view( matrix4_multiplied_by_matrix4( view.GetViewMatrix(), m_faceTex2local ) );
SelectionIntersection best;
Point_BestPoint( local2view, m_gridPointU.m_point.vertex, best );
selector.addIntersection( best, eGridU );
Point_BestPoint( local2view, m_gridPointV.m_point.vertex, best );
selector.addIntersection( best, eGridV );
}
if( !selector.isSelected() && m_patch ){ // try patch points
const Matrix4 local2view( matrix4_multiplied_by_matrix4( view.GetViewMatrix(), m_faceTex2local ) );
SelectionIntersection best;
for( std::size_t i = 0; i < m_patchRenderPoints.m_points.size(); ++i ){
Point_BestPoint( local2view, m_patchRenderPoints.m_points[i], best );
selector.addIntersection( best, ePatchPoint, i );
}
}
if( !selector.isSelected() && m_patch ){ // try patch rows, columns
const Matrix4 local2view( matrix4_multiplied_by_matrix4( view.GetViewMatrix(), m_faceTex2local ) );
SelectionIntersection best;
for ( std::size_t r = 0; r < m_patchHeight; ++r ){
for ( std::size_t c = 0; c < m_patchWidth - 1; ++c ){
Line_BestPoint( local2view, &m_patchRenderLattice.m_lines[( r * ( m_patchWidth - 1 ) + c ) * 2], best );
selector.addIntersection( best, ePatchRow, r );
}
}
for ( std::size_t c = 0; c < m_patchWidth; ++c ){
for ( std::size_t r = 0; r < m_patchHeight - 1; ++r ){
Line_BestPoint( local2view, &m_patchRenderLattice.m_lines[( m_patchWidth - 1 ) * m_patchHeight * 2 + ( c * ( m_patchHeight - 1 ) + r ) * 2], best );
selector.addIntersection( best, ePatchColumn, c );
}
}
}
if( !selector.isSelected() ){ // try circle
const Matrix4 local2view( matrix4_multiplied_by_matrix4( view.GetViewMatrix(), m_circle2world ) );
SelectionIntersection best;
LineLoop_BestPoint( local2view, m_circle.m_vertices.data(), m_circle.m_vertices.size(), best );
selector.addIntersection( best, eCircle );
}
if( !selector.isSelected() ){ // try pivot lines
const Matrix4 local2view( matrix4_multiplied_by_matrix4( view.GetViewMatrix(), m_faceTex2local ) );
SelectionIntersection best;
Line_BestPoint( local2view, &m_pivotLines.m_lines[0], best );
selector.addIntersection( best, ePivotU );
Line_BestPoint( local2view, &m_pivotLines.m_lines[2], best );
selector.addIntersection( best, ePivotV );
}
testSelectUVlines:
PointVertex* selectedU = 0;
PointVertex* selectedV = 0;
EUVSelection& selection = selector.m_selection;
if( !selector.isSelected() ){ // try UV lines
/*
-|------
|
|
V line center| - - tex U center - -
| tex
| V
-cross-|-----U line center-----|
|
*/
// special fuckage with the grid for better distinguishing of user's intentions
// better picking of tex, only line for skew or scale with dense grid
const Matrix4 screen2world( matrix4_full_inverse( view.GetViewMatrix() ) );
const DoubleRay ray = ray_for_points( vector4_projected( matrix4_transformed_vector4( screen2world, BasicVector4<double>( 0, 0, -1, 1 ) ) ),
vector4_projected( matrix4_transformed_vector4( screen2world, BasicVector4<double>( 0, 0, 1, 1 ) ) ) );
const DoubleVector3 hit = ray_intersect_plane( ray, m_plane );
const Vector3 uvhit = matrix4_transformed_point( m_faceLocal2tex, hit );
if( std::fabs( vector3_dot( ray.direction, m_plane.normal() ) ) > 1e-6
&& !m_Ulines.m_lines.empty()
&& !m_Vlines.m_lines.empty()
&& matrix4_transformed_vector4( view.GetViewMatrix(), Vector4( hit, 1 ) ).w() > 0 ){
PointVertex* closestU = &m_Ulines.m_lines[std::min( m_Ulines.m_lines.size() - 2,
static_cast<std::size_t>( float_to_integer( std::max( 0.f, uvhit.y() - m_Ulines.m_lines.front().vertex.y() ) * m_gridU ) * 2 ) )];
PointVertex* closestV = &m_Vlines.m_lines[std::min( m_Vlines.m_lines.size() - 2,
static_cast<std::size_t>( float_to_integer( std::max( 0.f, uvhit.x() - m_Vlines.m_lines.front().vertex.x() ) * m_gridV ) * 2 ) )];
const Vector2 sign( uvhit.y() > closestU->vertex.y()? 1 : -1, uvhit.x() > closestV->vertex.x()? 1 : -1 ); //hit in positive or negative part of lines u, v
const PointVertex pCross( Vertex3f( closestV->vertex.x(), closestU->vertex.y(), 0 ) );
const PointVertex pUcenter( Vertex3f( closestV->vertex.x() + sign.y() / ( m_gridV * 2 ), closestU->vertex.y(), 0 ) );
const PointVertex pVcenter( Vertex3f( closestV->vertex.x(), closestU->vertex.y() + sign.x() / ( m_gridU * 2 ), 0 ) );
PointVertex pTexUcenter[2]{ *closestU, *( closestU + 1 ) };
pTexUcenter[0].vertex.y() = pTexUcenter[1].vertex.y() = pVcenter.vertex.y();
PointVertex pTexVcenter[2]{ *closestV, *( closestV + 1 ) };
pTexVcenter[0].vertex.x() = pTexVcenter[1].vertex.x() = pUcenter.vertex.x();
SelectionIntersection iCross, iUcenter, iVcenter, iTexUcenter, iTexVcenter, iU, iV, iNull;
const Matrix4 local2view( matrix4_multiplied_by_matrix4( view.GetViewMatrix(), m_faceTex2local ) );
#if defined( DEBUG_SELECTION )
g_render_clipped.construct( view.GetViewMatrix() );
#endif
Line_BestPoint( local2view, closestU, iU );
Line_BestPoint( local2view, closestV, iV );
Line_BestPoint( local2view, pTexUcenter, iTexUcenter );
Line_BestPoint( local2view, pTexVcenter, iTexVcenter );
const bool uselected = iU < iNull;
const bool vselected = iV < iNull;
if( !uselected && !vselected ){ //no lines hit, definitely tex
selection = eTex;
}
else if( ( !uselected || iTexUcenter < iU ) && ( !vselected || iTexVcenter < iV ) ){ //yes lines, but tex ones are closer
selection = eTex;
}
else if( uselected != vselected ){ //only line selected
if( uselected ){
selection = g_modifiers == c_modifierAlt? eSkewU : eU;
selectedU = closestU;
}
else{
selection = g_modifiers == c_modifierAlt? eSkewV : eV;
selectedV = closestV;
}
}
else{ //two lines hit
if( g_modifiers == c_modifierAlt ){ //pick only line for skew
if( iU < iV ){
selection = eSkewU;
selectedU = closestU;
}
else{
selection = eSkewV;
selectedV = closestV;
}
}
else{
Point_BestPoint( local2view, pUcenter, iUcenter );
Point_BestPoint( local2view, pVcenter, iVcenter );
Point_BestPoint( local2view, pCross, iCross );
const bool ucenter = iUcenter < iNull;
const bool vcenter = iVcenter < iNull;
if( !ucenter && !vcenter ){ // no centers, definitely two lines
selection = eUV;
selectedU = closestU;
selectedV = closestV;
}
else if( iCross < iUcenter && iCross < iVcenter ){ // some center(s), cross is closer = two lines
selection = eUV;
selectedU = closestU;
selectedV = closestV;
}
else{ // some center(s), pick closest line
if( iUcenter < iVcenter ){
selection = eU;
selectedU = closestU;
}
else{
selection = eV;
selectedV = closestV;
}
}
}
}
}
}
applySelection( selector.m_selection, selectedU, selectedV, selector.m_index );
}
private:
void applySelection( EUVSelection selection, PointVertex* selectedU, PointVertex* selectedV, int selectedPatchIndex ){
if( m_selection != selection
|| m_selectedU != selectedU
|| m_selectedV != selectedV
|| m_selectedPatchIndex != selectedPatchIndex ){
if( m_selection != selection ){
switch ( m_selection )
{
case ePivot:
m_pivotPoint.m_point.colour = m_cWhite;
break;
case eGridU:
m_gridPointU.m_point.colour = m_cWhite;
break;
case eGridV:
m_gridPointV.m_point.colour = m_cWhite;
break;
case eCircle:
m_circle.setColour( m_cGray );
break;
case ePivotU:
m_pivotLines.m_lines[0].colour = m_cWhite;
m_pivotLines.m_lines[1].colour = m_cWhite;
break;
case ePivotV:
m_pivotLines.m_lines[2].colour = m_cWhite;
m_pivotLines.m_lines[3].colour = m_cWhite;
break;
default:
break;
}
switch ( selection )
{
case ePivot:
m_pivotPoint.m_point.colour = m_cRed;
break;
case eGridU:
m_gridPointU.m_point.colour = m_cRed;
break;
case eGridV:
m_gridPointV.m_point.colour = m_cRed;
break;
case eCircle:
m_circle.setColour( g_colour_selected );
break;
case ePivotU:
m_pivotLines.m_lines[0].colour = m_cRed;
m_pivotLines.m_lines[1].colour = m_cRed;
break;
case ePivotV:
m_pivotLines.m_lines[2].colour = m_cRed;
m_pivotLines.m_lines[3].colour = m_cRed;
break;
default:
break;
}
}
const Colour4b colour_selected = g_modifiers == c_modifierAlt? m_cGreen : g_colour_selected;
if( m_selectedU != selectedU || m_selection != selection ){ // selected line changed or not, but scale<->skew modes exchanged
if( m_selectedU )
m_selectedU->colour =
( m_selectedU + 1 )->colour = ( ( m_selectedU - &m_Ulines.m_lines[0] ) / 2 ) % m_gridU == 0? m_cGray : m_cGrayer;
if( selectedU )
selectedU->colour =
( selectedU + 1 )->colour = colour_selected;
}
if( m_selectedV != selectedV || m_selection != selection ){
if( m_selectedV )
m_selectedV->colour =
( m_selectedV + 1 )->colour = ( ( m_selectedV - &m_Vlines.m_lines[0] ) / 2 ) % m_gridV == 0? m_cGray : m_cGrayer;
if( selectedV )
selectedV->colour =
( selectedV + 1 )->colour = colour_selected;
}
if( m_selectedPatchIndex != selectedPatchIndex || m_selection != selection ){
if( m_selectedPatchIndex >= 0 ){
switch ( m_selection )
{
case ePatchPoint:
m_patchRenderPoints.m_points[m_selectedPatchIndex].colour = patchCtrl_isInside( m_selectedPatchIndex )? m_cPin : m_cGree;
break;
case ePatchRow:
for ( std::size_t c = 0; c < m_patchWidth - 1; ++c ){
const std::size_t i = ( m_selectedPatchIndex * ( m_patchWidth - 1 ) + c ) * 2;
m_patchRenderLattice.m_lines[i].colour =
m_patchRenderLattice.m_lines[i + 1].colour = m_cOrang;
}
for ( std::size_t c = 0; c < m_patchWidth; ++c ){
const std::size_t i = m_selectedPatchIndex * m_patchWidth + c;
m_patchRenderPoints.m_points[i].colour = patchCtrl_isInside( i )? m_cPin : m_cGree;
}
break;
case ePatchColumn:
for ( std::size_t r = 0; r < m_patchHeight - 1; ++r ){
const std::size_t i = ( m_patchWidth - 1 ) * m_patchHeight * 2 + ( m_selectedPatchIndex * ( m_patchHeight - 1 ) + r ) * 2;
m_patchRenderLattice.m_lines[i].colour =
m_patchRenderLattice.m_lines[i + 1].colour = m_cOrang;
}
for ( std::size_t r = 0; r < m_patchHeight; ++r ){
const std::size_t i = r * m_patchWidth + m_selectedPatchIndex;
m_patchRenderPoints.m_points[i].colour = patchCtrl_isInside( i )? m_cPin : m_cGree;
}
break;
default:
break;
}
}
if( selectedPatchIndex >= 0 ){
switch ( selection )
{
case ePatchPoint:
m_patchRenderPoints.m_points[selectedPatchIndex].colour = patchCtrl_isInside( selectedPatchIndex )? m_cPink : m_cGreen;
break;
case ePatchRow:
for ( std::size_t c = 0; c < m_patchWidth - 1; ++c ){
const std::size_t i = ( selectedPatchIndex * ( m_patchWidth - 1 ) + c ) * 2;
m_patchRenderLattice.m_lines[i].colour =
m_patchRenderLattice.m_lines[i + 1].colour = m_cOrange;
}
for ( std::size_t c = 0; c < m_patchWidth; ++c ){
const std::size_t i = selectedPatchIndex * m_patchWidth + c;
m_patchRenderPoints.m_points[i].colour = patchCtrl_isInside( i )? m_cPink : m_cGreen;
}
break;
case ePatchColumn:
for ( std::size_t r = 0; r < m_patchHeight - 1; ++r ){
const std::size_t i = ( m_patchWidth - 1 ) * m_patchHeight * 2 + ( selectedPatchIndex * ( m_patchHeight - 1 ) + r ) * 2;
m_patchRenderLattice.m_lines[i].colour =
m_patchRenderLattice.m_lines[i + 1].colour = m_cOrange;
}
for ( std::size_t r = 0; r < m_patchHeight; ++r ){
const std::size_t i = r * m_patchWidth + selectedPatchIndex;
m_patchRenderPoints.m_points[i].colour = patchCtrl_isInside( i )? m_cPink : m_cGreen;
}
break;
default:
break;
}
}
}
m_selection = selection;
m_selectedU = selectedU;
m_selectedV = selectedV;
m_selectedPatchIndex = selectedPatchIndex;
SceneChangeNotify();
}
m_isSelected = ( selection != eNone );
}
void commitTransform( const Matrix4& transform ) const {
if( m_face ){
m_face->transform_texdef( transform, m_origin ); //! todo make SI update after Brush_textureChanged(); same problem after brush moved with tex lock
} // also after Patch_textureChanged(); calling them now in this->freezeTransform() works good nuff
else if( m_patch ){
const Matrix4 uvTransform = transform_local2object( matrix4_affine_inverse( transform ), m_faceLocal2tex, m_faceTex2local );
for( std::size_t i = 0; i < m_patchCtrl.size(); ++i ){
const Vector3 uv = matrix4_transformed_point( uvTransform, Vector3( m_patchCtrl[i].m_texcoord, 0 ) );
m_patch->getControlPointsTransformed()[i].m_texcoord = uv.vec2();
}
// m_patch->controlPointsChanged();
m_patch->UpdateCachedData();
}
SceneChangeNotify();
}
/* Manipulatable */
Vector3 m_start;
public:
void Construct( const Matrix4& device2manip, const DeviceVector device_point, const AABB& bounds, const Vector3& transform_origin ) override {
m_start = point_on_plane( m_plane, m_view->GetViewMatrix(), device_point );
}
//!? fix meaningless undo on grid/origin change, then click tex or lines
//!? todo no snap mode with alt modifier
void Transform( const Matrix4& manip2object, const Matrix4& device2manip, const DeviceVector device_point ) override {
const Vector3 current = point_on_plane( m_plane, m_view->GetViewMatrix(), device_point );
const bool snap = g_modifiers.shift(), snapHard = g_modifiers.ctrl();
const class Snapper
{
float m_x; //uv axis to screen coef
float m_y;
public:
Snapper( const Vector3& current, const Matrix4& faceTex2local ) {
Vector3 scale( m_view->GetViewport().x().x(), m_view->GetViewport().y().y(), 0 );
scale /= float{ std::max( scale.x(), scale.y() ) }; // normalise to be consistent over screen width & height
const Matrix4 proj = matrix4_multiplied_by_matrix4( matrix4_scale_for_vec3( scale ), m_view->GetViewMatrix() );
// get unary world displacements over uv axes to screenspace
const Vector3 curr = vector4_projected( matrix4_transformed_vector4( proj, Vector4( current, 1 ) ) );
const Vector3 x = vector4_projected( matrix4_transformed_vector4( proj, Vector4( current + vector3_normalised( faceTex2local.x().vec3() ), 1 ) ) );
const Vector3 y = vector4_projected( matrix4_transformed_vector4( proj, Vector4( current + vector3_normalised( faceTex2local.y().vec3() ), 1 ) ) );
m_x = vector3_length( x - curr ) * vector3_length( faceTex2local.x().vec3() ); // consider uv space scaling
m_y = vector3_length( y - curr ) * vector3_length( faceTex2local.y().vec3() );
}
bool x_snaps( float uv_dist, float epsilon = .01f ) const {
return uv_dist * m_x < epsilon;
}
bool y_snaps( float uv_dist, float epsilon = .01f ) const {
return uv_dist * m_y < epsilon;
}
} snapper( current, m_faceTex2local );
switch ( m_selection )
{
case ePivot:
{
const Vector3 uv_origin_start = matrix4_transformed_point( m_faceLocal2tex, m_origin );
const Vector3 uv_origin = matrix4_transformed_point( m_faceLocal2tex, current );
float bestDistU = FLT_MAX;
float bestDistV = FLT_MAX;
float snapToU = 0;
float snapToV = 0;
for( std::vector<PointVertex>::const_iterator i = m_Ulines.m_lines.begin(); i != m_Ulines.m_lines.end(); ++++i ){
const float dist = std::fabs( ( *i ).vertex.y() - uv_origin.y() );
if( dist < bestDistU ){
bestDistU = dist;
snapToU = ( *i ).vertex.y();
}
}
for( std::vector<PointVertex>::const_iterator i = m_Vlines.m_lines.begin(); i != m_Vlines.m_lines.end(); ++++i ){
const float dist = std::fabs( ( *i ).vertex.x() - uv_origin.x() );
if( dist < bestDistV ){
bestDistV = dist;
snapToV = ( *i ).vertex.x();
}
}
forEachUVPoint( [&]( const Vector3& point ){
const float distU = std::fabs( point.y() - uv_origin.y() );
if( distU < bestDistU ){
bestDistU = distU;
snapToU = point.y();
}
const float distV = std::fabs( point.x() - uv_origin.x() );
if( distV < bestDistV ){
bestDistV = distV;
snapToV = point.x();
}
} );
Vector3 result( uv_origin_start );
if( snapper.y_snaps( bestDistU ) || snapHard ){
result.y() = snapToU;
}
else{
result.y() = uv_origin.y();
}
if( snapper.x_snaps( bestDistV ) || snapHard ){
result.x() = snapToV;
}
else{
result.x() = uv_origin.x();
}
m_origin = matrix4_transformed_point( m_faceTex2local, result );
UpdateFaceData( false, false );
SceneChangeNotify();
}
break;
case ePivotU:
{
const Vector3 uv_origin_start = matrix4_transformed_point( m_faceLocal2tex, m_origin );
const Vector3 uv_origin = matrix4_transformed_point( m_faceLocal2tex, current );
float bestDist = FLT_MAX;
float snapTo = 0;
for( std::vector<PointVertex>::const_iterator i = m_Ulines.m_lines.begin(); i != m_Ulines.m_lines.end(); ++++i ){
const float dist = std::fabs( ( *i ).vertex.y() - uv_origin.y() );
if( dist < bestDist ){
bestDist = dist;
snapTo = ( *i ).vertex.y();
}
}
forEachUVPoint( [&]( const Vector3& point ){
const float dist = std::fabs( point.y() - uv_origin.y() );
if( dist < bestDist ){
bestDist = dist;
snapTo = point.y();
}
} );
Vector3 result( uv_origin_start );
if( snapper.y_snaps( bestDist ) || snapHard ){
result.y() = snapTo;
}
else{
result.y() = uv_origin.y();
}
m_origin = matrix4_transformed_point( m_faceTex2local, result );
UpdateFaceData( false, false );
SceneChangeNotify();
}
break;
case ePivotV:
{
const Vector3 uv_origin_start = matrix4_transformed_point( m_faceLocal2tex, m_origin );
const Vector3 uv_origin = matrix4_transformed_point( m_faceLocal2tex, current );
float bestDist = FLT_MAX;
float snapTo = 0;
for( std::vector<PointVertex>::const_iterator i = m_Vlines.m_lines.begin(); i != m_Vlines.m_lines.end(); ++++i ){
const float dist = std::fabs( ( *i ).vertex.x() - uv_origin.x() );
if( dist < bestDist ){
bestDist = dist;
snapTo = ( *i ).vertex.x();
}
}
forEachUVPoint( [&]( const Vector3& point ){
const float dist = std::fabs( point.x() - uv_origin.x() );
if( dist < bestDist ){
bestDist = dist;
snapTo = point.x();
}
} );
Vector3 result( uv_origin_start );
if( snapper.x_snaps( bestDist ) || snapHard ){
result.x() = snapTo;
}
else{
result.x() = uv_origin.x();
}
m_origin = matrix4_transformed_point( m_faceTex2local, result );
UpdateFaceData( false, false );
SceneChangeNotify();
}
break;
case eGridU:
{
const Vector3 uv_origin = matrix4_transformed_point( m_faceLocal2tex, m_origin );
const Vector3 uv_current = matrix4_transformed_point( m_faceLocal2tex, current );
const float dist = std::max( ( float_to_integer( uv_origin.y() + m_gridSign.x() * .25 ) + m_gridSign.x() - uv_current.y() ) * m_gridSign.x(), .01f );
unsigned int grid = std::max( 1, std::min( 16, int( 1 / dist ) ) );
if( snapHard ){ // http://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2
grid--;
grid |= grid >> 1;
grid |= grid >> 2;
grid |= grid >> 4;
grid |= grid >> 8;
grid |= grid >> 16;
grid++;
}
if( m_gridU != grid || ( snap && m_gridV != grid ) ){
m_gridU = grid;
if( snap )
m_gridV = grid;
UpdateFaceData( false );
SceneChangeNotify();
}
}
break;
case eGridV:
{
const Vector3 uv_origin = matrix4_transformed_point( m_faceLocal2tex, m_origin );
const Vector3 uv_current = matrix4_transformed_point( m_faceLocal2tex, current );
const float dist = std::max( ( float_to_integer( uv_origin.x() + m_gridSign.y() * .25 ) + m_gridSign.y() - uv_current.x() ) * m_gridSign.y(), .01f );
unsigned int grid = std::max( 1, std::min( 16, int( 1 / dist ) ) );
if( snapHard ){ // http://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2
grid--;
grid |= grid >> 1;
grid |= grid >> 2;
grid |= grid >> 4;
grid |= grid >> 8;
grid |= grid >> 16;
grid++;
}
if( m_gridV != grid || ( snap && m_gridU != grid ) ){
m_gridV = grid;
if( snap )
m_gridU = grid;
UpdateFaceData( false );
SceneChangeNotify();
}
}
break;
case eCircle:
{
Vector3 from = m_start - m_origin;
constrain_to_axis( from, m_tex2local.z().vec3() );
Vector3 to = current - m_origin;
constrain_to_axis( to, m_tex2local.z().vec3() );
Matrix4 rot = g_matrix4_identity;
if( snap ){
matrix4_pivoted_rotate_by_axisangle( rot,
m_tex2local.z().vec3(),
float_snapped( angle_for_axis( from, to, m_tex2local.z().vec3() ), static_cast<float>( c_pi / 12.0 ) ),
m_origin );
}
else{
matrix4_pivoted_rotate_by_axisangle( rot,
m_tex2local.z().vec3(),
angle_for_axis( from, to, m_tex2local.z().vec3() ),
m_origin );
}
{ // snap
const Vector3 uvec = vector3_normalised( matrix4_transformed_direction( rot, m_tex2local.x().vec3() ) );
const Vector3 vvec = vector3_normalised( matrix4_transformed_direction( rot, m_tex2local.y().vec3() ) );
float bestDot = 0;
Vector3 bestTo;
bool V = false;
forEachEdge( [&]( const Vector3& point0, const Vector3& point1 ){
Vector3 vec( point1 - point0 );
constrain_to_axis( vec, m_tex2local.z().vec3() );
const float dotU = std::fabs( vector3_dot( uvec, vec ) );
if( dotU > bestDot ){
bestDot = dotU;
bestTo = vector3_dot( uvec, vec ) > 0? vec : -vec;
V = false;
}
const float dotV = std::fabs( vector3_dot( vvec, vec ) );
if( dotV > bestDot ){
bestDot = dotV;
bestTo = vector3_dot( vvec, vec ) > 0? vec : -vec;
V = true;
}
} );
if( bestDot > 0.9994f || snapHard ){
const Vector3 bestFrom = vector3_normalised( V? m_tex2local.y().vec3() : m_tex2local.x().vec3() );
rot = g_matrix4_identity;
matrix4_pivoted_rotate_by_axisangle( rot,
m_tex2local.z().vec3(),
angle_for_axis( bestFrom, bestTo, m_tex2local.z().vec3() ),
m_origin );
}
}
Matrix4 faceTex2local = matrix4_multiplied_by_matrix4( rot, m_tex2local );
faceTex2local.x().vec3() = plane3_project_point( Plane3( m_plane.normal(), 0 ), faceTex2local.x().vec3(), m_tex2local.z().vec3() );
faceTex2local.y().vec3() = plane3_project_point( Plane3( m_plane.normal(), 0 ), faceTex2local.y().vec3(), m_tex2local.z().vec3() );
faceTex2local = matrix4_multiplied_by_matrix4( // adjust to have UV's z = 0: move the plane along m_tex2local.z() so that plane.dist() = 0
matrix4_translation_for_vec3(
m_tex2local.z().vec3() * ( m_plane.dist() - vector3_dot( m_plane.normal(), faceTex2local.t().vec3() ) )
/ vector3_dot( m_plane.normal(), m_tex2local.z().vec3() )
),
faceTex2local );
m_lines2world = m_pivotLines2world = faceTex2local;
m_pivot2world = matrix4_multiplied_by_matrix4( rot, m_pivot2world0 );
commitTransform( rot );
}
break;
case eU: //!? todo modifier or default snap to set scale u = scale v
{
const Vector3 uv_origin = matrix4_transformed_point( m_local2tex, m_origin );
const Vector3 uv_start = m_selectedU->vertex;
const Vector3 uv_current = m_selectedU->vertex + matrix4_transformed_point( m_local2tex, current ) - matrix4_transformed_point( m_local2tex, m_start );
float bestDist = FLT_MAX;
float snapTo = 0;
forEachUVPoint( [&]( const Vector3& point ){
const float dist = std::fabs( point.y() - uv_current.y() );
if( dist < bestDist ){
bestDist = dist;
snapTo = point.y();
}
} );
Vector3 result( 1, uv_current.y(), 1 );
if( snapper.y_snaps( bestDist ) || snapHard ){
result.y() = snapTo;
}
result.y() = ( result.y() - uv_origin.y() ) / ( uv_start.y() - uv_origin.y() );
if( snap )
result.x() = std::fabs( result.y() );
/* prevent scaling to 0, limit at max 10 textures per world unit */
if( vector3_length_squared( m_tex2local.y().vec3() * result.y() ) < .01 )
return;
Matrix4 scale = g_matrix4_identity;
matrix4_pivoted_scale_by_vec3( scale, result, uv_origin );
scale = transform_local2object( scale, m_tex2local, m_local2tex );
{
Matrix4 linescale = g_matrix4_identity;
matrix4_pivoted_scale_by_vec3( linescale, result, matrix4_transformed_point( m_faceLocal2tex, m_origin ) );
m_lines2world = m_pivotLines2world = matrix4_multiplied_by_matrix4( m_faceTex2local, linescale );
m_pivot2world = matrix4_multiplied_by_matrix4( m_pivot2world0, matrix4_scale_for_vec3( result ) );
}
commitTransform( scale );
}
break;
case eV:
{
const Vector3 uv_origin = matrix4_transformed_point( m_local2tex, m_origin );
const Vector3 uv_start = m_selectedV->vertex;
const Vector3 uv_current = m_selectedV->vertex + matrix4_transformed_point( m_local2tex, current ) - matrix4_transformed_point( m_local2tex, m_start );
float bestDist = FLT_MAX;
float snapTo = 0;
forEachUVPoint( [&]( const Vector3& point ){
const float dist = std::fabs( point.x() - uv_current.x() );
if( dist < bestDist ){
bestDist = dist;
snapTo = point.x();
}
} );
Vector3 result( uv_current.x(), 1, 1 );
if( snapper.x_snaps( bestDist ) || snapHard ){
result.x() = snapTo;
}
result.x() = ( result.x() - uv_origin.x() ) / ( uv_start.x() - uv_origin.x() );
if( snap )
result.y() = std::fabs( result.x() );
/* prevent scaling to 0, limit at max 10 textures per world unit */
if( vector3_length_squared( m_tex2local.x().vec3() * result.x() ) < .01 )
return;
Matrix4 scale = g_matrix4_identity;
matrix4_pivoted_scale_by_vec3( scale, result, uv_origin );
scale = transform_local2object( scale, m_tex2local, m_local2tex );
{
Matrix4 linescale = g_matrix4_identity;
matrix4_pivoted_scale_by_vec3( linescale, result, matrix4_transformed_point( m_faceLocal2tex, m_origin ) );
m_lines2world = m_pivotLines2world = matrix4_multiplied_by_matrix4( m_faceTex2local, linescale );
m_pivot2world = matrix4_multiplied_by_matrix4( m_pivot2world0, matrix4_scale_for_vec3( result ) );
}
commitTransform( scale );
}
break;
case eUV:
{
const Vector3 uv_origin = matrix4_transformed_point( m_local2tex, m_origin );
const Vector3 uv_start{ m_selectedV->vertex.x(), m_selectedU->vertex.y(), 0 };
const Vector3 uv_current{ ( m_selectedV->vertex + matrix4_transformed_point( m_local2tex, current ) - matrix4_transformed_point( m_local2tex, m_start ) ).x(),
( m_selectedU->vertex + matrix4_transformed_point( m_local2tex, current ) - matrix4_transformed_point( m_local2tex, m_start ) ).y(),
0 };
float bestDistU = FLT_MAX;
float snapToU = 0;
float bestDistV = FLT_MAX;
float snapToV = 0;
forEachUVPoint( [&]( const Vector3& point ){
const float distU = std::fabs( point.y() - uv_current.y() );
if( distU < bestDistU ){
bestDistU = distU;
snapToU = point.y();
}
const float distV = std::fabs( point.x() - uv_current.x() );
if( distV < bestDistV ){
bestDistV = distV;
snapToV = point.x();
}
} );
Vector3 result( uv_current.x(), uv_current.y(), 1 );
if( snapper.y_snaps( bestDistU ) || snapHard ){
result.y() = snapToU;
}
result.y() = ( result.y() - uv_origin.y() ) / ( uv_start.y() - uv_origin.y() );
if( snapper.x_snaps( bestDistV ) || snapHard ){
result.x() = snapToV;
}
result.x() = ( result.x() - uv_origin.x() ) / ( uv_start.x() - uv_origin.x() );
if( snap ){
const std::size_t best = std::fabs( result.x() ) > std::fabs( result.y() )? 0 : 1;
result[( best + 1 ) % 2] = std::copysign( result[best], result[( best + 1 ) % 2] );
}
/* prevent scaling to 0, limit at max 10 textures per world unit */
if( vector3_length_squared( m_tex2local.x().vec3() * result.x() ) < .01 ||
vector3_length_squared( m_tex2local.y().vec3() * result.y() ) < .01 )
return;
Matrix4 scale = g_matrix4_identity;
matrix4_pivoted_scale_by_vec3( scale, result, uv_origin );
scale = transform_local2object( scale, m_tex2local, m_local2tex );
{
Matrix4 linescale = g_matrix4_identity;
matrix4_pivoted_scale_by_vec3( linescale, result, matrix4_transformed_point( m_faceLocal2tex, m_origin ) );
m_lines2world = m_pivotLines2world = matrix4_multiplied_by_matrix4( m_faceTex2local, linescale );
m_pivot2world = matrix4_multiplied_by_matrix4( m_pivot2world0, matrix4_scale_for_vec3( result ) );
}
commitTransform( scale );
}
break;
case eSkewU:
{
const Vector3 uv_origin = matrix4_transformed_point( m_faceLocal2tex, m_origin );
const Vector3 uv_move = matrix4_transformed_point( m_faceLocal2tex, current ) - matrix4_transformed_point( m_faceLocal2tex, m_start );
Matrix4 skew( g_matrix4_identity );
skew[4] = uv_move.x() / ( m_selectedU->vertex - uv_origin ).y();
const Vector3 skewed = matrix4_transformed_direction( skew, g_vector3_axis_y );
const float uv_y_measure_dist = ( m_selectedU->vertex - uv_origin ).y();
float bestDist = FLT_MAX;
Vector3 bestTo;
const auto snap_to_edge = [&]( const Vector3 edge ){
if( std::fabs( edge.y() ) > 1e-5f ){ // don't snap so, that one axis = the other
const float dist = std::fabs( edge.x() * uv_y_measure_dist / edge.y() - skewed.x() * uv_y_measure_dist / skewed.y() );
if( dist < bestDist ){
bestDist = dist;
bestTo = edge;
}
}
};
forEachEdge( [&]( const Vector3& point0, const Vector3& point1 ){
snap_to_edge( matrix4_transformed_point( m_faceLocal2tex, point1 ) - matrix4_transformed_point( m_faceLocal2tex, point0 ) );
} );
forEachPoint( [&]( const Vector3& point ){
const Vector3 po = matrix4_transformed_point( m_faceLocal2tex, point );
for( std::vector<PointVertex>::const_iterator i = m_Vlines.m_lines.cbegin(); i != m_Vlines.m_lines.cend(); ++++i ){
snap_to_edge( po - Vector3( i->vertex.x(), uv_origin.y(), 0 ) );
}
snap_to_edge( po - Vector3( uv_origin.x(), uv_origin.y(), 0 ) );
} );
if( snapper.x_snaps( bestDist, .015f ) || snapHard ){ //!? todo add snap: make manipulated axis orthogonal to the other
skew[4] = bestTo.x() / bestTo.y();
}
{
Matrix4 mat( g_matrix4_identity );
matrix4_translate_by_vec3( mat, uv_origin );
matrix4_multiply_by_matrix4( mat, skew );
matrix4_translate_by_vec3( mat, -uv_origin );
skew = mat;
}
m_lines2world = m_pivotLines2world = matrix4_multiplied_by_matrix4( m_faceTex2local, skew );
m_pivot2world = transform_local2object( skew, m_tex2local, m_local2tex );
matrix4_multiply_by_matrix4( m_pivot2world, m_pivot2world0 );
skew = transform_local2object( skew, m_faceTex2local, m_faceLocal2tex );
commitTransform( skew );
}
break;
case eSkewV:
{
const Vector3 uv_origin = matrix4_transformed_point( m_faceLocal2tex, m_origin );
const Vector3 uv_move = matrix4_transformed_point( m_faceLocal2tex, current ) - matrix4_transformed_point( m_faceLocal2tex, m_start );
Matrix4 skew( g_matrix4_identity );
skew[1] = uv_move.y() / ( m_selectedV->vertex - uv_origin ).x();
const Vector3 skewed = matrix4_transformed_direction( skew, g_vector3_axis_x );
const float uv_x_measure_dist = ( m_selectedV->vertex - uv_origin ).x();
float bestDist = FLT_MAX;
Vector3 bestTo;
const auto snap_to_edge = [&]( const Vector3 edge ){
if( std::fabs( edge.x() ) > 1e-5f ){ // don't snap so, that one axis = the other
const float dist = std::fabs( edge.y() * uv_x_measure_dist / edge.x() - skewed.y() * uv_x_measure_dist / skewed.x() );
if( dist < bestDist ){
bestDist = dist;
bestTo = edge;
}
}
};
forEachEdge( [&]( const Vector3& point0, const Vector3& point1 ){
snap_to_edge( matrix4_transformed_point( m_faceLocal2tex, point1 ) - matrix4_transformed_point( m_faceLocal2tex, point0 ) );
} );
forEachPoint( [&]( const Vector3& point ){
const Vector3 po = matrix4_transformed_point( m_faceLocal2tex, point );
for( std::vector<PointVertex>::const_iterator i = m_Ulines.m_lines.cbegin(); i != m_Ulines.m_lines.cend(); ++++i ){
snap_to_edge( po - Vector3( uv_origin.x(), i->vertex.y(), 0 ) );
}
snap_to_edge( po - Vector3( uv_origin.x(), uv_origin.y(), 0 ) );
} );
if( snapper.y_snaps( bestDist, .015f ) || snapHard ){ //!? todo add snap: make manipulated axis orthogonal to the other
skew[1] = bestTo.y() / bestTo.x();
}
{
Matrix4 mat( g_matrix4_identity );
matrix4_translate_by_vec3( mat, uv_origin );
matrix4_multiply_by_matrix4( mat, skew );
matrix4_translate_by_vec3( mat, -uv_origin );
skew = mat;
}
m_lines2world = m_pivotLines2world = matrix4_multiplied_by_matrix4( m_faceTex2local, skew );
m_pivot2world = transform_local2object( skew, m_tex2local, m_local2tex );
matrix4_multiply_by_matrix4( m_pivot2world, m_pivot2world0 );
skew = transform_local2object( skew, m_faceTex2local, m_faceLocal2tex );
commitTransform( skew );
}
break;
case eTex:
{
const Vector3 uvstart = matrix4_transformed_point( m_faceLocal2tex, m_start );
const Vector3 uvcurrent = matrix4_transformed_point( m_faceLocal2tex, current );
const Vector3 uvmove = uvcurrent - uvstart;
float bestDistU = FLT_MAX;
float bestDistV = FLT_MAX;
float snapMoveU = 0;
float snapMoveV = 0;
// snap uvmove
const auto functor = [&]( const Vector3& point ){
for( auto it = m_Ulines.m_lines.cbegin(); it != m_Ulines.m_lines.cend(); ++++it ){
const float dist = point.y() - ( ( *it ).vertex.y() + uvmove.y() );
if( std::fabs( dist ) < bestDistU ){
bestDistU = std::fabs( dist );
snapMoveU = uvmove.y() + dist;
}
}
for( auto it = m_Vlines.m_lines.cbegin(); it != m_Vlines.m_lines.cend(); ++++it ){
const float dist = point.x() - ( ( *it ).vertex.x() + uvmove.x() );
if( std::fabs( dist ) < bestDistV ){
bestDistV = std::fabs( dist );
snapMoveV = uvmove.x() + dist;
}
}
};
forEachUVPoint( functor );
functor( matrix4_transformed_point( m_faceLocal2tex, m_origin ) );
Vector3 result( uvmove );
if( snapper.y_snaps( bestDistU ) || snapHard ){
result.y() = snapMoveU;
}
if( snapper.x_snaps( bestDistV ) || snapHard ){
result.x() = snapMoveV;
}
if( snap ){
auto& smaller = std::fabs( uvmove.x() * vector3_length( m_faceTex2local.x().vec3() ) ) <
std::fabs( uvmove.y() * vector3_length( m_faceTex2local.y().vec3() ) )? result.x() : result.y();
smaller = 0;
}
result = translation_local2object( result, m_faceTex2local, m_faceLocal2tex );
const Matrix4 translation = matrix4_translation_for_vec3( result );
m_lines2world = matrix4_multiplied_by_matrix4( translation, m_faceTex2local );
commitTransform( translation );
}
break;
case ePatchPoint:
case ePatchRow:
case ePatchColumn:
{
std::vector<std::size_t> indices;
if( m_selection == ePatchPoint )
indices.push_back( m_selectedPatchIndex );
else if( m_selection == ePatchRow )
for ( std::size_t c = 0; c < m_patchWidth; ++c )
indices.push_back( m_selectedPatchIndex * m_patchWidth + c );
else if( m_selection == ePatchColumn )
for ( std::size_t r = 0; r < m_patchHeight; ++r )
indices.push_back( r * m_patchWidth + m_selectedPatchIndex );
const Vector3 uvstart = matrix4_transformed_point( m_faceLocal2tex, m_start );
const Vector3 uvcurrent = matrix4_transformed_point( m_faceLocal2tex, current );
const Vector3 uvmove = uvcurrent - uvstart;
float bestDistU = FLT_MAX;
float bestDistV = FLT_MAX;
float snapMoveU = 0;
float snapMoveV = 0;
// snap uvmove
for( std::size_t index : indices ){
for( std::vector<PointVertex>::const_iterator i = m_Ulines.m_lines.begin(); i != m_Ulines.m_lines.end(); ++++i ){
const float dist = m_patchCtrl[index].m_texcoord.y() + uvmove.y() - ( *i ).vertex.y();
if( std::fabs( dist ) < bestDistU ){
bestDistU = std::fabs( dist );
snapMoveU = uvmove.y() - dist;
}
}
for( std::vector<PointVertex>::const_iterator i = m_Vlines.m_lines.begin(); i != m_Vlines.m_lines.end(); ++++i ){
const float dist = m_patchCtrl[index].m_texcoord.x() + uvmove.x() - ( *i ).vertex.x();
if( std::fabs( dist ) < bestDistV ){
bestDistV = std::fabs( dist );
snapMoveV = uvmove.x() - dist;
}
}
const Vector3 origin = matrix4_transformed_point( m_faceLocal2tex, m_origin );
{
const float dist = m_patchCtrl[index].m_texcoord.y() + uvmove.y() - origin.y();
if( std::fabs( dist ) < bestDistU ){
bestDistU = std::fabs( dist );
snapMoveU = uvmove.y() - dist;
}
}
{
const float dist = m_patchCtrl[index].m_texcoord.x() + uvmove.x() - origin.x();
if( std::fabs( dist ) < bestDistV ){
bestDistV = std::fabs( dist );
snapMoveV = uvmove.x() - dist;
}
}
}
Vector3 result( uvmove );
if( snapper.y_snaps( bestDistU ) || snapHard ){
result.y() = snapMoveU;
}
if( snapper.x_snaps( bestDistV ) || snapHard ){
result.x() = snapMoveV;
}
if( snap ){
auto& smaller = std::fabs( uvmove.x() * vector3_length( m_faceTex2local.x().vec3() ) ) <
std::fabs( uvmove.y() * vector3_length( m_faceTex2local.y().vec3() ) )? result.x() : result.y();
smaller = 0;
}
const Matrix4 translation = matrix4_translation_for_vec3( result );
for( std::size_t i : indices ){
const Vector3 uv = matrix4_transformed_point( translation, Vector3( m_patchCtrl[i].m_texcoord, 0 ) );
m_patch->getControlPointsTransformed()[i].m_texcoord = uv.vec2();
m_patchRenderPoints.m_points[i].vertex = vertex3f_for_vector3( uv );
}
// update lattice renderable entirely
for ( std::size_t r = 0; r < m_patchHeight; ++r ){
for ( std::size_t c = 0; c < m_patchWidth - 1; ++c ){
const Vector2& a = m_patch->getControlPointsTransformed()[r * m_patchWidth + c].m_texcoord;
const Vector2& b = m_patch->getControlPointsTransformed()[r * m_patchWidth + c + 1].m_texcoord;
m_patchRenderLattice.m_lines[( r * ( m_patchWidth - 1 ) + c ) * 2].vertex = vertex3f_for_vector3( Vector3( a, 0 ) );
m_patchRenderLattice.m_lines[( r * ( m_patchWidth - 1 ) + c ) * 2 + 1].vertex = vertex3f_for_vector3( Vector3( b, 0 ) );
}
}
for ( std::size_t c = 0; c < m_patchWidth; ++c ){
for ( std::size_t r = 0; r < m_patchHeight - 1; ++r ){
const Vector2& a = m_patch->getControlPointsTransformed()[r * m_patchWidth + c].m_texcoord;
const Vector2& b = m_patch->getControlPointsTransformed()[( r + 1 ) * m_patchWidth + c].m_texcoord;
m_patchRenderLattice.m_lines[( m_patchWidth - 1 ) * m_patchHeight * 2 + ( c * ( m_patchHeight - 1 ) + r ) * 2].vertex = vertex3f_for_vector3( Vector3( a, 0 ) );
m_patchRenderLattice.m_lines[( m_patchWidth - 1 ) * m_patchHeight * 2 + ( c * ( m_patchHeight - 1 ) + r ) * 2 + 1].vertex = vertex3f_for_vector3( Vector3( b, 0 ) );
}
}
m_patch->UpdateCachedData();
SceneChangeNotify();
}
default:
break;
}
}
void freezeTransform() override {
if( m_selection == eCircle
|| m_selection == eU
|| m_selection == eV
|| m_selection == eUV
|| m_selection == eSkewU
|| m_selection == eSkewV
|| m_selection == eTex
|| m_selection == ePatchPoint
|| m_selection == ePatchRow
|| m_selection == ePatchColumn )
{
if( m_face ){
m_face->freezeTransform();
Brush_textureChanged();
}
else if( m_patch ){
m_patch->freezeTransform();
Patch_textureChanged();
}
}
}
Manipulatable* GetManipulatable() override {
return this;
}
void setSelected( bool select ) override {
m_isSelected = select;
}
bool isSelected() const override {
return m_isSelected;
}
};
UVManipulator* New_UVManipulator(){
return new UVManipulatorImpl;
}
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