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Cutoff conditional in light shader

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glassmancody.info 2021-03-27 23:41:22 -07:00
parent 05a5cee132
commit ec27e60284
2 changed files with 12 additions and 1 deletions
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2
files/settings-default.cfg
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@ -448,7 +448,7 @@ lighting method = experimental
# Sets the bounding sphere multiplier of light sources, which are used to determine if an object should # Sets the bounding sphere multiplier of light sources, which are used to determine if an object should
# receive lighting. Higher values will allow for smoother transitions of light sources, but may have a performance cost and # receive lighting. Higher values will allow for smoother transitions of light sources, but may have a performance cost and
# requires a higher number of 'max lights' set. It is recommended to keep this at 1.0 with 'legacy' lighting enabled. # requires a higher number of 'max lights' set. It is recommended to keep this at 1.0 with 'legacy' lighting enabled.
light bounds multiplier = 2.0 light bounds multiplier = 1.0
# The distance from the camera at which lights fade away completely. Set to 0 to disable fading. # The distance from the camera at which lights fade away completely. Set to 0 to disable fading.
maximum light distance = 8192 maximum light distance = 8192

11
files/shaders/lighting.glsl
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@ -101,6 +101,17 @@ void perLightPoint(out vec3 ambientOut, out vec3 diffuseOut, int lightIndex, vec
vec3 lightDir = getLight[lightIndex].position.xyz - viewPos; vec3 lightDir = getLight[lightIndex].position.xyz - viewPos;
float lightDistance = length(lightDir); float lightDistance = length(lightDir);
#if !@ffpLighting
// This has a *considerable* performance uplift where GPU is a bottleneck
if (lightDistance > getLight[lightIndex].attenuation.w * 2.0)
{
ambientOut = vec3(0.0);
diffuseOut = vec3(0.0);
return;
}
#endif
lightDir = normalize(lightDir); lightDir = normalize(lightDir);
#if @ffpLighting #if @ffpLighting