[Bf-blender-cvs] [0eb61c799d0] master: Fix T57994: Particle Instance modifiers 'Index Layer' off by one

Philipp Oeser noreply at git.blender.org
Fri Dec 7 16:41:49 CET 2018


Commit: 0eb61c799d0e98ccb92b12aea744c79a9da7e7c2
Author: Philipp Oeser
Date:   Thu Nov 22 11:52:38 2018 +0100
Branches: master
https://developer.blender.org/rB0eb61c799d0e98ccb92b12aea744c79a9da7e7c2

Fix T57994: Particle Instance modifiers 'Index Layer' off by one

better have this vertex color layer cover the whole 0-1 range

thx @sergey for checking

Maniphest Tasks: T57994

Differential Revision: https://developer.blender.org/D3976

===================================================================

M	source/blender/modifiers/intern/MOD_particleinstance.c

===================================================================

diff --git a/source/blender/modifiers/intern/MOD_particleinstance.c b/source/blender/modifiers/intern/MOD_particleinstance.c
index d88526e2845..b6163056fe3 100644
--- a/source/blender/modifiers/intern/MOD_particleinstance.c
+++ b/source/blender/modifiers/intern/MOD_particleinstance.c
@@ -511,7 +511,7 @@ static DerivedMesh *applyModifier(
 					const int ml_index = (ml - mloop);
 					if (mloopcols_index != NULL) {
 						const int part_index = vert_part_index[ml->v];
-						store_float_in_vcol(&mloopcols_index[ml_index], (float)part_index / psys->totpart);
+						store_float_in_vcol(&mloopcols_index[ml_index], (float)part_index / (float)(psys->totpart-1));
 					}
 					if (mloopcols_value != NULL) {
 						const float part_value = vert_part_value[ml->v];



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