a5741e0561
This avoid confusion outside of the shader node GLSL code. The issue also is that Metal allow float to cast to bool implicitly but this create a compilation error on OpenGL.
34 lines
976 B
GLSL
34 lines
976 B
GLSL
/* SPDX-FileCopyrightText: 2019-2022 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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void node_bsdf_glass(vec4 color,
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float roughness,
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float ior,
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vec3 N,
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float weight,
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const float do_multiscatter,
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out Closure result)
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{
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N = safe_normalize(N);
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vec3 V = cameraVec(g_data.P);
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float NV = dot(N, V);
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vec2 bsdf = bsdf_lut(NV, roughness, ior, do_multiscatter != 0.0);
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ClosureReflection reflection_data;
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reflection_data.weight = bsdf.x * weight;
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reflection_data.color = color.rgb;
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reflection_data.N = N;
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reflection_data.roughness = roughness;
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ClosureRefraction refraction_data;
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refraction_data.weight = bsdf.y * weight;
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refraction_data.color = color.rgb;
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refraction_data.N = N;
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refraction_data.roughness = roughness;
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refraction_data.ior = ior;
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result = closure_eval(reflection_data, refraction_data);
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}
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