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Fix T91728: Cycles render artifacts with motion blur and object attributes

This commit is contained in:
Brecht Van Lommel 2021-09-27 17:38:53 +02:00
parent 0559971ab3
commit 5bea5e25d5
Notes: blender-bot 2023-02-13 17:35:33 +01:00 
Referenced by issue #88449: Blender LTS: Maintenance Task 2.93
Referenced by issue #88449, Blender LTS: Maintenance Task 2.93
Referenced by issue #91728, Cycles render artefacts with motion blur turned on
1 changed files with 12 additions and 1 deletions
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13
intern/cycles/kernel/geom/geom_motion_triangle.h
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@ -41,7 +41,18 @@ ccl_device_inline int find_attribute_motion(const KernelGlobals *kg,
uint4 attr_map = kernel_tex_fetch(__attributes_map, attr_offset);
while (attr_map.x != id) {
attr_offset += ATTR_PRIM_TYPES;
if (UNLIKELY(attr_map.x == ATTR_STD_NONE)) {
if (UNLIKELY(attr_map.y == 0)) {
return (int)ATTR_STD_NOT_FOUND;
}
else {
/* Chain jump to a different part of the table. */
attr_offset = attr_map.z;
}
}
else {
attr_offset += ATTR_PRIM_TYPES;
}
attr_map = kernel_tex_fetch(__attributes_map, attr_offset);
}