24 lines
746 B
Plaintext
24 lines
746 B
Plaintext
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#include "node_fresnel.h"
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#include "stdcycles.h"
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shader node_glass_bsdf(color Color = 0.8,
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string distribution = "ggx",
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float Roughness = 0.2,
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float IOR = 1.45,
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normal Normal = N,
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output closure color BSDF = 0)
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{
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float f = max(IOR, 1e-5);
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float eta = backfacing() ? 1.0 / f : f;
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float roughness = Roughness * Roughness;
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if (distribution == "Multiscatter GGX")
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BSDF = Color * microfacet_multi_ggx_glass(Normal, roughness, eta, Color);
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else
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BSDF = Color * microfacet(distribution, Normal, roughness, eta, 2);
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}
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