37 lines
1.1 KiB
GLSL
37 lines
1.1 KiB
GLSL
#version 450 core
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layout (std140, binding = 1) uniform LightsBlock
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{
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vec4 posBool[20];
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vec4 colRad[20];
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} ;
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//uniform int lightID;
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vec3 lightPos = posBool[gl_Layer].xyz;
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vec4 lumRad = colRad[gl_Layer];
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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 gTexPos;
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out vec4 fColor;
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void main()
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{
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float rad = lumRad.a;
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vec3 distVec = texture(screenTexture,gTexPos).xyz - lightPos;
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float dist = dot(distVec,distVec);
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if (dist > lumRad.a) {discard;}
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// float x = 1 - dist / lumRad.a ;
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// vec3 c = (x * x * x) * lumRad.rgb ;
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// fColor = vec4(c,0);
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// //fColor = vec4(0.05,0,0,0);
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vec4 normbit = texture(normals, gTexPos);
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vec3 norm = normbit.xyz;
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float y1 = dot(normalize(norm), normalize(distVec));
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float y2 = float(y1 > 0 ? 1 : 0);
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//float y3 = clamp(0.5 * (y1 + 1),0,1) ;
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float y3 = clamp(2*y1 + 1,0,1) ;
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//float y3 = clamp(0.5 * (y1 + 2),0,1) ;
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//float y = float(normbit.w == 0 ? y3 : y2);
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float y = y2;
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float x = 1 - dist / rad;
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vec3 c = y* (x * x * x) * lumRad.rgb;
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fColor = vec4(c, 1);
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}
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