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Cycles / OSL:

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* Layer Weight is now available in OSL.
This commit is contained in:
Thomas Dinges 2012-10-17 16:16:35 +00:00
parent 0c2a1500f2
commit 17c82a7e57
3 changed files with 15 additions and 9 deletions
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1
intern/cycles/kernel/osl/nodes/CMakeLists.txt
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@ -29,6 +29,7 @@ set(SRC_OSL
node_hsv.osl
node_image_texture.osl
node_invert.osl
node_layer_weight.osl
node_light_path.osl
node_light_falloff.osl
node_magic_texture.osl

21
intern/cycles/kernel/osl/nodes/node_blend_weight.osl → intern/cycles/kernel/osl/nodes/node_layer_weight.osl
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@ -19,22 +19,27 @@
#include "stdosl.h"
#include "node_fresnel.h"
shader node_blend_weight(
float Blend = 0.3,
shader node_layer_weight(
float Blend = 0.5,
normal Normal = N,
output float Fresnel = 0.0,
output float Facing = 0.0)
{
float f = max(1.0 - Blend, 1e-5);
Fresnel = fresnel_dielectric(I, Normal, backfacing()? f: 1.0 / f);
float blend = Blend;
/* Fresnel */
float eta = max(1.0 - Blend, 1e-5);
eta = backfacing()? eta: 1.0 / eta;
Fresnel = fresnel_dielectric(I, Normal, eta);
/* Facing */
Facing = abs(dot(I, Normal));
if (Blend != 0.5) {
Blend = clamp(Blend, 0.0, 1.0);
Blend = (Blend < 0.5)? 2.0 * Blend: 0.5 / (1.0 - Blend);
if (blend != 0.5) {
blend = clamp(blend, 0.0, 1.0);
blend = (blend < 0.5)? 2.0 * blend: 0.5 / (1.0 - blend);
Facing = powf(Facing, Blend);
Facing = pow(Facing, blend);
}
Facing = 1.0 - Facing;

2
intern/cycles/render/nodes.cpp
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@ -2579,7 +2579,7 @@ void LayerWeightNode::compile(SVMCompiler& compiler)
void LayerWeightNode::compile(OSLCompiler& compiler)
{
compiler.add(this, "node_blend_weight");
compiler.add(this, "node_layer_weight");
}
/* Output */