forked from bartvdbraak/blender
Cycles Hair: Fixed hair shape and inclusion of multiple attributes for triangle primitives
When using triangle primitives this fix enables 'closed tip'. UVs and vertex colours are added when using triangle primitives for hair. Two new preset modes have also been included to allow easy access to curves and triangle planes.
This commit is contained in:
parent
6fca85780b
commit
35e89d9cfc
@ -66,9 +66,11 @@ enum_panorama_types = (
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enum_curve_presets = (
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('CUSTOM', "Custom", "Set general parameters"),
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('TANGENT_SHADING', "Tangent Normal", "Use planar geometry and tangent normals"),
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('TRUE_NORMAL', "True Normal", "Use true normals (good for thin strands)"),
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('ACCURATE_PRESET', "Accurate", "Use best settings (suitable for glass materials)"),
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('FAST_PLANES', "Fast Planes", "Use camera facing triangles (fast but memory intensive)"),
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('TANGENT_SHADING', "Tangent Normal", "Use planar line segments and tangent normals"),
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('TRUE_NORMAL', "True Normal", "Use true normals with line segments(good for thin strands)"),
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('ACCURATE_PRESET', "Accurate", "Use best line segment settings (suitable for glass materials)"),
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('SMOOTH_CURVES', "Smooth Curves", "Use smooth cardinal curves (slowest)"),
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)
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enum_curve_primitives = (
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@ -41,11 +41,12 @@ void ToggleRender(Mesh *mesh, BL::Mesh *b_mesh, BL::Object *b_ob, BL::Scene *sce
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bool ObtainCacheParticleUV(Mesh *mesh, BL::Mesh *b_mesh, BL::Object *b_ob, ParticleCurveData *CData, bool use_parents, bool background, int uv_num);
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bool ObtainCacheParticleVcol(Mesh *mesh, BL::Mesh *b_mesh, BL::Object *b_ob, ParticleCurveData *CData, bool use_parents, bool background, int vcol_num);
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bool ObtainCacheParticleData(Mesh *mesh, BL::Mesh *b_mesh, BL::Object *b_ob, ParticleCurveData *CData, bool use_parents, bool background);
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void ExportCurveSegments(Mesh *mesh, ParticleCurveData *CData, int interpolation, int segments);
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void ExportCurveTrianglePlanes(Mesh *mesh, ParticleCurveData *CData, int interpolation, bool use_smooth, int segments, float3 RotCam);
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void ExportCurveTriangleRibbons(Mesh *mesh, ParticleCurveData *CData, int interpolation, bool use_smooth, int segments);
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void ExportCurveTriangleGeometry(Mesh *mesh, ParticleCurveData *CData, int interpolation, bool use_smooth, int resolution, int segments);
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void ExportCurveSegments(Mesh *mesh, ParticleCurveData *CData, int interpolation, int segments);
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void ExportCurveTriangleUVs(Mesh *mesh, ParticleCurveData *CData, int interpolation, bool use_smooth, int segments, int vert_offset, int resol);
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void ExportCurveTriangleUV(Mesh *mesh, ParticleCurveData *CData, int interpolation, int segments, int vert_offset, int resol, float3 *uvdata);
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void ExportCurveTriangleVcol(Mesh *mesh, ParticleCurveData *CData, int interpolation, int segments, int vert_offset, int resol, float3 *fdata);
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ParticleCurveData::ParticleCurveData()
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{
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@ -428,13 +429,13 @@ void ExportCurveTrianglePlanes(Mesh *mesh, ParticleCurveData *CData, int interpo
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float radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], time);
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if(CData->psys_closetip[sys] && (subv == segments) && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1))
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radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], 0.0f, 0.95f);
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if((curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1) && (subv == segments))
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if((curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 2) && (subv == segments))
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radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], 0.95f);
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xbasis = normalize(cross(v1,RotCam - ickey_loc));
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if(CData->psys_closetip[sys] && (subv == segments) && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 2))
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radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], 0.0f, 0.95f);
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xbasis = normalize(cross(RotCam - ickey_loc,v1));
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float3 ickey_loc_shfl = ickey_loc - radius * xbasis;
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float3 ickey_loc_shfr = ickey_loc + radius * xbasis;
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mesh->verts.push_back(ickey_loc_shfl);
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@ -542,12 +543,12 @@ void ExportCurveTriangleRibbons(Mesh *mesh, ParticleCurveData *CData, int interp
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float radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], time);
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if(CData->psys_closetip[sys] && (subv == segments) && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1))
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radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], 0.0f, 0.95f);
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if((curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1) && (subv == segments))
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if((curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 2) && (subv == segments))
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radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], 0.95f);
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if(CData->psys_closetip[sys] && (subv == segments) && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 2))
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radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], 0.0f, 0.95f);
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float3 ickey_loc_shfl = ickey_loc - radius * xbasis;
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float3 ickey_loc_shfr = ickey_loc + radius * xbasis;
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mesh->verts.push_back(ickey_loc_shfl);
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@ -659,12 +660,12 @@ void ExportCurveTriangleGeometry(Mesh *mesh, ParticleCurveData *CData, int inter
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float radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], time);
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if(CData->psys_closetip[sys] && (subv == segments) && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1))
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radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], 0.0f, 0.95f);
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if((curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1) && (subv == segments))
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if((curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 2) && (subv == segments))
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radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], 0.95f);
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if(CData->psys_closetip[sys] && (subv == segments) && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 2))
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radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], 0.0f, 0.95f);
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float angle = 2 * M_PI_F / (float)resolution;
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for(int section = 0 ; section < resolution; section++) {
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float3 ickey_loc_shf = ickey_loc + radius * (cosf(angle * section) * xbasis + sinf(angle * section) * ybasis);
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@ -764,17 +765,14 @@ static void ExportCurveSegments(Scene *scene, Mesh *mesh, ParticleCurveData *CDa
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}
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}
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void ExportCurveTriangleUVs(Mesh *mesh, ParticleCurveData *CData, int interpolation, bool use_smooth, int segments, int vert_offset, int resol)
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void ExportCurveTriangleUV(Mesh *mesh, ParticleCurveData *CData, int interpolation, int segments, int vert_offset, int resol, float3 *uvdata)
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{
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if(uvdata == NULL)
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return;
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float time = 0.0f;
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float prevtime = 0.0f;
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Attribute *attr = mesh->attributes.find(ATTR_STD_UV);
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if (attr == NULL)
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return;
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float3 *uvdata = attr->data_float3();
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int vertexindex = vert_offset;
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for( int sys = 0; sys < CData->psys_firstcurve.size() ; sys++) {
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@ -823,6 +821,58 @@ void ExportCurveTriangleUVs(Mesh *mesh, ParticleCurveData *CData, int interpolat
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}
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}
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void ExportCurveTriangleVcol(Mesh *mesh, ParticleCurveData *CData, int interpolation, int segments, int vert_offset, int resol, float3 *fdata)
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{
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if(fdata == NULL)
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return;
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float time = 0.0f;
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float prevtime = 0.0f;
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int vertexindex = vert_offset;
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for( int sys = 0; sys < CData->psys_firstcurve.size() ; sys++) {
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for( int curve = CData->psys_firstcurve[sys]; curve < CData->psys_firstcurve[sys] + CData->psys_curvenum[sys] ; curve++) {
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for( int curvekey = CData->curve_firstkey[curve]; curvekey < CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1; curvekey++) {
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int subv = 1;
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if (curvekey == CData->curve_firstkey[curve])
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subv = 0;
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for (; subv <= segments; subv++) {
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float3 ickey_loc = make_float3(0.0f,0.0f,0.0f);
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InterpolateKeySegments(subv, segments, curvekey, curve, &ickey_loc, &time, CData , interpolation);
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if(subv!=0) {
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for(int section = 0 ; section < resol; section++) {
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fdata[vertexindex] = color_srgb_to_scene_linear(CData->curve_vcol[curve]);
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vertexindex++;
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fdata[vertexindex] = color_srgb_to_scene_linear(CData->curve_vcol[curve]);
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vertexindex++;
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fdata[vertexindex] = color_srgb_to_scene_linear(CData->curve_vcol[curve]);
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vertexindex++;
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fdata[vertexindex] = color_srgb_to_scene_linear(CData->curve_vcol[curve]);
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vertexindex++;
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fdata[vertexindex] = color_srgb_to_scene_linear(CData->curve_vcol[curve]);
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vertexindex++;
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fdata[vertexindex] = color_srgb_to_scene_linear(CData->curve_vcol[curve]);
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vertexindex++;
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}
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}
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prevtime = time;
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}
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}
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}
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}
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}
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/* Hair Curve Sync */
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void BlenderSync::sync_curve_settings()
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@ -868,6 +918,13 @@ void BlenderSync::sync_curve_settings()
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curve_system_manager->use_joined = false;
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switch(preset) {
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case CURVE_FAST_PLANES:
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/*camera facing planes*/
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curve_system_manager->primitive = CURVE_TRIANGLES;
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curve_system_manager->triangle_method = CURVE_CAMERA_TRIANGLES;
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curve_system_manager->use_smooth = true;
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curve_system_manager->resolution = 1;
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break;
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case CURVE_TANGENT_SHADING:
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/*tangent shading*/
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curve_system_manager->line_method = CURVE_UNCORRECTED;
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@ -895,6 +952,12 @@ void BlenderSync::sync_curve_settings()
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curve_system_manager->use_tangent_normal_geometry = false;
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curve_system_manager->use_tangent_normal_correction = false;
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break;
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case CURVE_SMOOTH_CURVES:
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/*Cardinal curves preset*/
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curve_system_manager->primitive = CURVE_SEGMENTS;
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curve_system_manager->use_backfacing = true;
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curve_system_manager->subdivisions = 4;
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break;
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}
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}
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@ -945,6 +1008,9 @@ void BlenderSync::sync_curves(Mesh *mesh, BL::Mesh b_mesh, BL::Object b_ob, bool
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bool use_smooth = scene->curve_system_manager->use_smooth;
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bool use_parents = scene->curve_system_manager->use_parents;
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bool export_tgs = scene->curve_system_manager->use_joined;
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size_t vert_num = mesh->verts.size();
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size_t tri_num = mesh->triangles.size();
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int used_res = 1;
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/* extract particle hair data - should be combined with connecting to mesh later*/
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@ -955,7 +1021,7 @@ void BlenderSync::sync_curves(Mesh *mesh, BL::Mesh b_mesh, BL::Object b_ob, bool
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ObtainCacheParticleData(mesh, &b_mesh, &b_ob, &CData, use_parents, !preview);
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/* attach strands to mesh */
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/* obtain camera parameters */
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BL::Object b_CamOb = b_scene.camera();
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float3 RotCam = make_float3(0.0f, 0.0f, 0.0f);
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if(b_CamOb) {
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@ -965,22 +1031,16 @@ void BlenderSync::sync_curves(Mesh *mesh, BL::Mesh b_mesh, BL::Object b_ob, bool
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RotCam = transform_point(&itfm, make_float3(ctfm.x.w, ctfm.y.w, ctfm.z.w));
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}
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/* add hair geometry to mesh */
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if(primitive == CURVE_TRIANGLES){
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int vert_num = mesh->triangles.size() * 3;
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ObtainCacheParticleUV(mesh, &b_mesh, &b_ob, &CData, use_parents, !preview, 0);
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if(triangle_method == CURVE_CAMERA_TRIANGLES) {
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if(triangle_method == CURVE_CAMERA_TRIANGLES)
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ExportCurveTrianglePlanes(mesh, &CData, interpolation, use_smooth, segments, RotCam);
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ExportCurveTriangleUVs(mesh, &CData, interpolation, use_smooth, segments, vert_num, 1);
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}
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else if(triangle_method == CURVE_RIBBON_TRIANGLES) {
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else if(triangle_method == CURVE_RIBBON_TRIANGLES)
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ExportCurveTriangleRibbons(mesh, &CData, interpolation, use_smooth, segments);
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ExportCurveTriangleUVs(mesh, &CData, interpolation, use_smooth, segments, vert_num, 1);
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}
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else {
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ExportCurveTriangleGeometry(mesh, &CData, interpolation, use_smooth, resolution, segments);
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ExportCurveTriangleUVs(mesh, &CData, interpolation, use_smooth, segments, vert_num, resolution);
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used_res = resolution;
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}
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}
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else {
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ExportCurveSegments(scene, mesh, &CData, interpolation, segments);
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@ -998,14 +1058,24 @@ void BlenderSync::sync_curves(Mesh *mesh, BL::Mesh b_mesh, BL::Object b_ob, bool
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data_tangent[ck] = tg;
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}
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}
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}
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/* generated coordinates from first key. we should ideally get this from
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* blender to handle deforming objects */
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{
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if(mesh->need_attribute(scene, ATTR_STD_GENERATED)) {
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float3 loc, size;
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mesh_texture_space(b_mesh, loc, size);
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/* generated coordinates from first key. we should ideally get this from
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* blender to handle deforming objects */
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{
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if(mesh->need_attribute(scene, ATTR_STD_GENERATED)) {
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float3 loc, size;
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mesh_texture_space(b_mesh, loc, size);
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if(primitive == CURVE_TRIANGLES) {
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Attribute *attr_generated = mesh->attributes.add(ATTR_STD_GENERATED);
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float3 *generated = attr_generated->data_float3();
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for(size_t i = vert_num; i < mesh->verts.size(); i++)
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generated[i] = mesh->verts[i]*size - loc;
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}
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else {
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Attribute *attr_generated = mesh->curve_attributes.add(ATTR_STD_GENERATED);
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float3 *generated = attr_generated->data_float3();
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size_t i = 0;
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@ -1016,61 +1086,83 @@ void BlenderSync::sync_curves(Mesh *mesh, BL::Mesh b_mesh, BL::Object b_ob, bool
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}
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}
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}
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}
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/* create vertex color attributes */
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{
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BL::Mesh::tessface_vertex_colors_iterator l;
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int vcol_num = 0;
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/* create vertex color attributes */
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{
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BL::Mesh::tessface_vertex_colors_iterator l;
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int vcol_num = 0;
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for(b_mesh.tessface_vertex_colors.begin(l); l != b_mesh.tessface_vertex_colors.end(); ++l, vcol_num++) {
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if(!mesh->need_attribute(scene, ustring(l->name().c_str())))
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continue;
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for(b_mesh.tessface_vertex_colors.begin(l); l != b_mesh.tessface_vertex_colors.end(); ++l, vcol_num++) {
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if(!mesh->need_attribute(scene, ustring(l->name().c_str())))
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continue;
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ObtainCacheParticleVcol(mesh, &b_mesh, &b_ob, &CData, use_parents, !preview, vcol_num);
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if(primitive == CURVE_TRIANGLES) {
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Attribute *attr_vcol = mesh->attributes.add(
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ustring(l->name().c_str()), TypeDesc::TypeColor, ATTR_ELEMENT_CORNER);
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float3 *fdata = attr_vcol->data_float3();
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ExportCurveTriangleVcol(mesh, &CData, interpolation, segments, tri_num * 3, used_res, fdata);
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}
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else {
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Attribute *attr_vcol = mesh->curve_attributes.add(
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ustring(l->name().c_str()), TypeDesc::TypeColor, ATTR_ELEMENT_CURVE);
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ObtainCacheParticleVcol(mesh, &b_mesh, &b_ob, &CData, use_parents, !preview, vcol_num);
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float3 *fdata = attr_vcol->data_float3();
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float3 *vcol = attr_vcol->data_float3();
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if(vcol) {
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if(fdata) {
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for(size_t curve = 0; curve < CData.curve_vcol.size() ;curve++)
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vcol[curve] = color_srgb_to_scene_linear(CData.curve_vcol[curve]);
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fdata[curve] = color_srgb_to_scene_linear(CData.curve_vcol[curve]);
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}
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}
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}
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}
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/* create uv map attributes */
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{
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BL::Mesh::tessface_uv_textures_iterator l;
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int uv_num = 0;
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/* create UV attributes */
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{
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BL::Mesh::tessface_uv_textures_iterator l;
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int uv_num = 0;
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for(b_mesh.tessface_uv_textures.begin(l); l != b_mesh.tessface_uv_textures.end(); ++l, uv_num++) {
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bool active_render = l->active_render();
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AttributeStandard std = (active_render)? ATTR_STD_UV: ATTR_STD_NONE;
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ustring name = ustring(l->name().c_str());
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for(b_mesh.tessface_uv_textures.begin(l); l != b_mesh.tessface_uv_textures.end(); ++l, uv_num++) {
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bool active_render = l->active_render();
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AttributeStandard std = (active_render)? ATTR_STD_UV: ATTR_STD_NONE;
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ustring name = ustring(l->name().c_str());
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/* UV map */
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if(mesh->need_attribute(scene, name) || mesh->need_attribute(scene, std)) {
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Attribute *attr;
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/* UV map */
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if(mesh->need_attribute(scene, name) || mesh->need_attribute(scene, std)) {
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Attribute *attr_uv;
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ObtainCacheParticleUV(mesh, &b_mesh, &b_ob, &CData, use_parents, !preview, uv_num);
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if(primitive == CURVE_TRIANGLES) {
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if(active_render)
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||||
attr = mesh->curve_attributes.add(std, name);
|
||||
attr_uv = mesh->attributes.add(std, name);
|
||||
else
|
||||
attr = mesh->curve_attributes.add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CURVE);
|
||||
attr_uv = mesh->attributes.add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CORNER);
|
||||
|
||||
ObtainCacheParticleUV(mesh, &b_mesh, &b_ob, &CData, use_parents, !preview, uv_num);
|
||||
float3 *uv = attr_uv->data_float3();
|
||||
|
||||
float3 *uv = attr->data_float3();
|
||||
ExportCurveTriangleUV(mesh, &CData, interpolation, segments, tri_num * 3, used_res, uv);
|
||||
}
|
||||
else {
|
||||
if(active_render)
|
||||
attr_uv = mesh->curve_attributes.add(std, name);
|
||||
else
|
||||
attr_uv = mesh->curve_attributes.add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CURVE);
|
||||
|
||||
float3 *uv = attr_uv->data_float3();
|
||||
|
||||
if(uv) {
|
||||
for(size_t curve = 0; curve < CData.curve_uv.size() ;curve++)
|
||||
for(size_t curve = 0; curve < CData.curve_uv.size(); curve++)
|
||||
uv[curve] = CData.curve_uv[curve];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
if(!preview)
|
||||
|
@ -33,9 +33,11 @@ void curvebounds(float *lower, float *upper, float3 *p, int dim);
|
||||
|
||||
typedef enum curve_presets {
|
||||
CURVE_CUSTOM,
|
||||
CURVE_FAST_PLANES,
|
||||
CURVE_TANGENT_SHADING,
|
||||
CURVE_TRUE_NORMAL,
|
||||
CURVE_ACCURATE_PRESET
|
||||
CURVE_ACCURATE_PRESET,
|
||||
CURVE_SMOOTH_CURVES
|
||||
} curve_presets;
|
||||
|
||||
typedef enum curve_primitives {
|
||||
|
Loading…
Reference in New Issue
Block a user