Commit: 5494ea1d084ab327a08145a39ef8621ccbe0c1f7
Author: Alexander Romanov
Date: Tue May 24 17:43:57 2016 +0300
Branches: master
https://developer.blender.org/rB5494ea1d084ab327a08145a39ef8621ccbe0c1f7
Fix own mistake in D1120: wrong indexing of UV maps during tangent calculation
===================================================================
M source/blender/blenkernel/intern/DerivedMesh.c
===================================================================
diff --git a/source/blender/blenkernel/intern/DerivedMesh.c
b/source/blender/blenkernel/intern/DerivedMesh.c
index 423b8fa..a3e7e5f 100644
--- a/source/blender/blenkernel/intern/DerivedMesh.c
+++ b/source/blender/blenkernel/intern/DerivedMesh.c
@@ -3269,17 +3269,18 @@ void DM_calc_loop_tangents_step_0(
bool *rcalc_act, bool *rcalc_ren, int *ract_uv_n, int *rren_uv_n,
char *ract_uv_name, char *rren_uv_name, char *rtangent_mask) {
/* Active uv in viewport */
+ int layer_index = CustomData_get_layer_index(loopData, CD_MLOOPUV);
*ract_uv_n = CustomData_get_active_layer(loopData, CD_MLOOPUV);
ract_uv_name[0] = 0;
if (*ract_uv_n != -1) {
- strcpy(ract_uv_name, loopData->layers[*ract_uv_n].name);
+ strcpy(ract_uv_name, loopData->layers[*ract_uv_n +
layer_index].name);
}
/* Active tangent in render */
*rren_uv_n = CustomData_get_render_layer(loopData, CD_MLOOPUV);
rren_uv_name[0] = 0;
if (*rren_uv_n != -1) {
- strcpy(rren_uv_name, loopData->layers[*rren_uv_n].name);
+ strcpy(rren_uv_name, loopData->layers[*rren_uv_n +
layer_index].name);
}
/* If active tangent not in tangent_names we take it into account */
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