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source: data/branches/Shader_HS18/programs/GLSL150/hdr_downscale3x3.glsl @ 12181

Last change on this file since 12181 was 12115, checked in by wiesep, 6 years ago

Changed folder structure, deletet some unused files and cleaned up code

File size: 860 bytes
Line 
1#version 150
2
3uniform sampler2D inRTT;
4uniform vec2 texelSize;
5
6in vec2 oUv0;
7out vec4 fragColour;
8
9void main(void)
10{
11    vec4 accum = vec4(0.0);
12
13    // Get colour from source
14    accum += texture(inRTT, oUv0 + texelSize * vec2(-1.0, -1.0));
15    accum += texture(inRTT, oUv0 + texelSize * vec2( 0.0, -1.0));
16    accum += texture(inRTT, oUv0 + texelSize * vec2( 1.0, -1.0));
17    accum += texture(inRTT, oUv0 + texelSize * vec2(-1.0,  0.0));
18    accum += texture(inRTT, oUv0 + texelSize * vec2( 0.0,  0.0));
19    accum += texture(inRTT, oUv0 + texelSize * vec2( 1.0,  0.0));
20    accum += texture(inRTT, oUv0 + texelSize * vec2(-1.0,  1.0));
21    accum += texture(inRTT, oUv0 + texelSize * vec2( 0.0,  1.0));
22    accum += texture(inRTT, oUv0 + texelSize * vec2( 1.0,  1.0));
23   
24        // take average of 9 samples
25        accum *= 0.1111111111111111;
26
27        fragColour = accum;
28}
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