26 lines
762 B
GLSL
26 lines
762 B
GLSL
#version 450 core
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layout(early_fragment_tests) in;
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layout (std140, binding = 1) uniform TheLight { vec4 lightPos; vec4 lumRad; };
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layout (binding = 0) uniform sampler2D screenTexture;
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layout (binding = 1) uniform sampler2D normals;
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in vec2 vTexPos;
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out vec4 fColor;
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float rad = lumRad.a;
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void main() {
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vec3 pos = texture(screenTexture, vTexPos).xyz;
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vec3 distVec = pos - lightPos.xyz;
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float dist = dot(distVec, distVec);
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// if (dist > rad) {
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// discard;
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// }
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vec3 norm = texture(normals, vTexPos).xyz;
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float y1 = dot(norm, distVec);
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float y2 = float(y1 > 0 ? 1 : 0);
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float x = 1 - (pow(dist / rad,4));
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//float x = 1 - (dist / rad);
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//float x = 1;
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//float x = (dist > rad ? 0 : 1);
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vec3 c = y2* x * lumRad.rgb;
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fColor = vec4(c, 0);
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}
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