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Fix T97380 EEVEE: Weird motion-blur on curves

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This was caused by the `mb_data->obmat[]` being wrong because they are
now shared between the particle system and the object.
But Hair need the dupli parent matrix instead of the object matrix.
Disabling `Show Emitter` option fixes the bug.

To avoid this problem, request a different `EEVEE_ObjectMotionData`
for particle systems using a different key pointer in the hash.
This is a bit dirty but there is less code polution using this workaround.

Differential Revision: https://developer.blender.org/D14911
This commit is contained in:
Clément Foucault
2022-05-11 01:22:28 +02:00
parent 6f5d172d6c
commit f5077e057b
3 changed files with 20 additions and 9 deletions
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9
source/blender/draw/engines/eevee/eevee_motion_blur.c
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@@ -226,7 +226,8 @@ void EEVEE_motion_blur_hair_cache_populate(EEVEE_ViewLayerData *UNUSED(sldata),
}
/* For now we assume hair objects are always moving. */
EEVEE_ObjectMotionData *mb_data = EEVEE_motion_blur_object_data_get(&effects->motion_blur, ob);
EEVEE_ObjectMotionData *mb_data = EEVEE_motion_blur_object_data_get(
&effects->motion_blur, ob, true);
if (mb_data) {
int mb_step = effects->motion_blur_step;
@@ -283,7 +284,8 @@ void EEVEE_motion_blur_curves_cache_populate(EEVEE_ViewLayerData *UNUSED(sldata)
}
/* For now we assume curves objects are always moving. */
EEVEE_ObjectMotionData *mb_data = EEVEE_motion_blur_object_data_get(&effects->motion_blur, ob);
EEVEE_ObjectMotionData *mb_data = EEVEE_motion_blur_object_data_get(
&effects->motion_blur, ob, false);
if (mb_data == NULL) {
return;
}
@@ -354,7 +356,8 @@ void EEVEE_motion_blur_cache_populate(EEVEE_ViewLayerData *UNUSED(sldata),
return;
}
EEVEE_ObjectMotionData *mb_data = EEVEE_motion_blur_object_data_get(&effects->motion_blur, ob);
EEVEE_ObjectMotionData *mb_data = EEVEE_motion_blur_object_data_get(
&effects->motion_blur, ob, false);
if (mb_data) {
int mb_step = effects->motion_blur_step;