forked from LeenkxTeam/LNXSDK
29 lines
589 B
Plaintext
29 lines
589 B
Plaintext
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#ifndef _ENVIRONMENT_SAMPLE_GLSL_
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#define _ENVIRONMENT_SAMPLE_GLSL_
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// Sample diffuse ambient environment lighting (irradiance)
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vec3 sampleDiffuseEnvironment(vec3 normal) {
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#ifdef _Irr
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vec3 envl = shIrradiance(normal, shirr);
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#ifdef _EnvTex
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envl /= PI;
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#endif
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return envl;
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#else
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return vec3(0.0);
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#endif
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}
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// Sample specular environment reflection (skybox or cubemap)
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vec3 sampleSpecularEnvironment(vec3 viewDir, float roughness) {
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#ifdef _EnvTex
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return textureLod(texEnvironment, viewDir, roughness * 8.0).rgb;
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#else
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return vec3(0.0);
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#endif
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}
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#endif
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