9cfc7967dd
* Replace license text in headers with SPDX identifiers. * Remove specific license info from outdated readme.txt, instead leave details to the source files. * Add list of SPDX license identifiers used, and corresponding license texts. * Update copyright dates while we're at it. Ref D14069, T95597
14 lines
364 B
Plaintext
14 lines
364 B
Plaintext
/* SPDX-License-Identifier: Apache-2.0
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* Copyright 2011-2022 Blender Foundation */
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#include "node_fresnel.h"
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#include "stdcycles.h"
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shader node_fresnel(float IOR = 1.45, normal Normal = N, output float Fac = 0.0)
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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 cosi = dot(I, Normal);
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Fac = fresnel_dielectric_cos(cosi, eta);
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}
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