quakeforge/libs/video/renderer/vulkan/shader/lighting.h

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struct LightData {
vec4 color; // .a is intensity
vec4 position; // .w = 0 -> directional, .w = 1 -> point/cone
vec4 direction; // .w = -cos(cone_angle/2) (1 for omni/dir)
vec4 attenuation;
};
layout (constant_id = 0) const int MaxLights = 768;
layout (set = 1, binding = 0) uniform Lights {
LightData lights[MaxLights];
int lightCount;
//mat4 shadowMat[MaxLights];
//vec4 shadowCascale[MaxLights];
};