diff options
Diffstat (limited to 'intern/cycles/blender/blender_curves.cpp')
| -rw-r--r-- | intern/cycles/blender/blender_curves.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/intern/cycles/blender/blender_curves.cpp b/intern/cycles/blender/blender_curves.cpp index 5ed021aa1e4..25455113f66 100644 --- a/intern/cycles/blender/blender_curves.cpp +++ b/intern/cycles/blender/blender_curves.cpp @@ -565,9 +565,12 @@ static void ExportCurveSegments(Scene *scene, Mesh *mesh, ParticleCurveData *CDa return; Attribute *attr_intercept = NULL; + Attribute *attr_index = NULL; if(mesh->need_attribute(scene, ATTR_STD_CURVE_INTERCEPT)) attr_intercept = mesh->curve_attributes.add(ATTR_STD_CURVE_INTERCEPT); + if(mesh->need_attribute(scene, ATTR_STD_CURVE_INDEX)) + attr_index = mesh->curve_attributes.add(ATTR_STD_CURVE_INDEX); /* compute and reserve size of arrays */ for(int sys = 0; sys < CData->psys_firstcurve.size(); sys++) { @@ -612,12 +615,25 @@ static void ExportCurveSegments(Scene *scene, Mesh *mesh, ParticleCurveData *CDa num_curve_keys++; } + if(attr_index != NULL) { + attr_index->add(num_curves); + } + mesh->add_curve(num_keys, CData->psys_shader[sys]); num_keys += num_curve_keys; num_curves++; } } + if(attr_index != NULL) { + /* Normalize index to 0..1 range. */ + float *curve_index = attr_index->data_float(); + const float norm_factor = 1.0f / (float)num_curves; + for(int i = 0; i < num_curves; ++i) { + curve_index[i] *= norm_factor; + } + } + /* check allocation */ if((mesh->curve_keys.size() != num_keys) || (mesh->num_curves() != num_curves)) { VLOG(1) << "Allocation failed, clearing data"; |