afa66fc628
Clamp some of the inputs of the Glossy BSDF, Glass BSDF, Sheen BSDF, and Subsurface Scattering nodes to improve consistency between render engines and to avoid unexpected results. * Clamp roughness to 0..1 * Clamp subsurface radius to 0..inf * Clamp colors to 0..inf Pull Request: https://projects.blender.org/blender/blender/pulls/120390
35 lines
1.1 KiB
GLSL
35 lines
1.1 KiB
GLSL
/* SPDX-FileCopyrightText: 2019-2023 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_glossy(vec4 color,
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float roughness,
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float anisotropy,
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float rotation,
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vec3 N,
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vec3 T,
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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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color = max(color, vec4(0.0));
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roughness = saturate(roughness);
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N = safe_normalize(N);
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/* anisotropy = clamp(anisotropy, -0.99, 0.99) */
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vec3 V = coordinate_incoming(g_data.P);
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float NV = dot(N, V);
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vec2 split_sum = brdf_lut(NV, roughness);
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ClosureReflection reflection_data;
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reflection_data.weight = weight;
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reflection_data.color = (do_multiscatter != 0.0) ?
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F_brdf_multi_scatter(color.rgb, color.rgb, split_sum) :
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F_brdf_single_scatter(color.rgb, color.rgb, split_sum);
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reflection_data.N = N;
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reflection_data.roughness = roughness;
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result = closure_eval(reflection_data);
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}
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