Clément Foucault
1d51cb6be2
This makes is clearer and avoid having to setup worldPosition if shader is not a material shader.
33 lines
1.1 KiB
GLSL
33 lines
1.1 KiB
GLSL
#ifndef VOLUMETRICS
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CLOSURE_EVAL_FUNCTION_DECLARE_1(node_bsdf_refraction, Refraction)
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void node_bsdf_refraction(vec4 color, float roughness, float ior, vec3 N, out Closure result)
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{
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CLOSURE_VARS_DECLARE_1(Refraction);
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in_Refraction_0.N = N; /* Normalized during eval. */
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in_Refraction_0.roughness = roughness;
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in_Refraction_0.ior = ior;
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CLOSURE_EVAL_FUNCTION_1(node_bsdf_refraction, Refraction);
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result = CLOSURE_DEFAULT;
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out_Refraction_0.radiance = render_pass_glossy_mask(vec3(1.0), out_Refraction_0.radiance);
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out_Refraction_0.radiance *= color.rgb;
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/* Simulate 2nd absorption event. */
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out_Refraction_0.radiance *= (refractionDepth > 0.0) ? color.rgb : vec3(1.0);
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result.radiance = out_Refraction_0.radiance;
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/* TODO(fclem) Try to not use this. */
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result.ssr_normal = normal_encode(mat3(ViewMatrix) * in_Refraction_0.N,
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viewCameraVec(viewPosition));
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}
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#else
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/* Stub refraction because it is not compatible with volumetrics. */
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# define node_bsdf_refraction(a, b, c, d, e) (e = CLOSURE_DEFAULT)
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#endif
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