Fix for [#26873] Animated displacement modifier on an object doesn't work with hair particle objects

* Noise is now considered an animated texture as it changes with every frame
* Converted a few places in particles code to use the particle system's own random table instead of BLI_frand.

1 files changed, 2 insertions, 4 deletions

diff --git a/source/blender/render/intern/source/convertblender.c b/source/blender/render/intern/source/convertblender.c
index 4c0ce24e3e7..0f6751850ef 100644
--- a/source/blender/render/intern/source/convertblender.c
+++ b/source/blender/render/intern/source/convertblender.c
@@ -1798,10 +1798,8 @@ static int render_new_particle_system(Render *re, ObjectRen *obr, ParticleSystem
 
 			pa_size = pa->size;
 
-			BLI_srandom(psys->seed+a);
-
-			r_tilt = 2.0f*(BLI_frand() - 0.5f);
-			r_length = BLI_frand();
+			r_tilt = 2.0f*(PSYS_FRAND(a) - 0.5f);
+			r_length = PSYS_FRAND(a+1);
 
 			if(path_nbr) {
 				cache = psys->pathcache[a];