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| author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2012-05-08 00:24:38 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2012-05-08 00:24:38 +0400 |
| commit | e6a84eb1b542e7cafe5e760530882bb806f3c433 (patch) | |
| tree | e3d7b9f8dab6c2d55ec0d45297ba281599f3e92f /intern/cycles/kernel/svm/svm_mapping.h | |
| parent | f44e80e6387601dea6e4e0801d0a387455a02d31 (diff) | |
Cycles: add light falloff node, with quadratic/linear/constant falloff and a
smoothing factor to reduce high values near the light.
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/More#Light_Falloff
Note that this was already possible to do manually with the Ray Length, but
this adds a convenient node for it. This commit also makes the mapping node
min/max option work, fixing #31348.
Diffstat (limited to 'intern/cycles/kernel/svm/svm_mapping.h')
| -rw-r--r-- | intern/cycles/kernel/svm/svm_mapping.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/svm_mapping.h b/intern/cycles/kernel/svm/svm_mapping.h index 6dc74aece08..96645ac97db 100644 --- a/intern/cycles/kernel/svm/svm_mapping.h +++ b/intern/cycles/kernel/svm/svm_mapping.h @@ -34,5 +34,16 @@ __device void svm_node_mapping(KernelGlobals *kg, ShaderData *sd, float *stack, stack_store_float3(stack, out_offset, r); } +__device void svm_node_min_max(KernelGlobals *kg, ShaderData *sd, float *stack, uint vec_offset, uint out_offset, int *offset) +{ + float3 v = stack_load_float3(stack, vec_offset); + + float3 mn = float4_to_float3(read_node_float(kg, offset)); + float3 mx = float4_to_float3(read_node_float(kg, offset)); + + float3 r = min(max(mn, v), mx); + stack_store_float3(stack, out_offset, r); +} + CCL_NAMESPACE_END |