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Particle Info node for Cycles. This can be used to access particle information in material shaders for dupli objects. For now only the particle Age and individual Lifetime (in frames) are supported, more attributes can be added when needed.

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The particle data is stored in a separate texture if any of the dupli objects uses particle info nodes in shaders. To map dupli objects onto particles the store an additional particle_index value, which is different from the simple dupli object index (only visible particles, also works for particle dupli groups mode).

Some simple use cases on the code.blender.org blog:
http://code.blender.org/index.php/2012/05/particle-info-node/
This commit is contained in:
Lukas Toenne
2012-06-08 16:17:57 +00:00
parent 82d3d9f2ba
commit 5e1bbde01d
25 changed files with 460 additions and 50 deletions
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source/blender/nodes/NOD_shader.h
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@@ -78,6 +78,7 @@ void register_node_type_sh_object_info(struct bNodeTreeType *ttype);
void register_node_type_sh_fresnel(struct bNodeTreeType *ttype);
void register_node_type_sh_layer_weight(struct bNodeTreeType *ttype);
void register_node_type_sh_tex_coord(struct bNodeTreeType *ttype);
void register_node_type_sh_particle_info(struct bNodeTreeType *ttype);
void register_node_type_sh_background(struct bNodeTreeType *ttype);
void register_node_type_sh_bsdf_diffuse(struct bNodeTreeType *ttype);