41 lines
1.0 KiB
GLSL
41 lines
1.0 KiB
GLSL
#line 2
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/*
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* Copyright (c) 2023 LAX1DUDE. All Rights Reserved.
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*
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* WITH THE EXCEPTION OF PATCH FILES, MINIFIED JAVASCRIPT, AND ALL FILES
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* NORMALLY FOUND IN AN UNMODIFIED MINECRAFT RESOURCE PACK, YOU ARE NOT ALLOWED
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* TO SHARE, DISTRIBUTE, OR REPURPOSE ANY FILE USED BY OR PRODUCED BY THE
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* SOFTWARE IN THIS REPOSITORY WITHOUT PRIOR PERMISSION FROM THE PROJECT AUTHOR.
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*
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* NOT FOR COMMERCIAL OR MALICIOUS USE
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*
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* (please read the 'LICENSE' file this repo's root directory for more info)
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*
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*/
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precision lowp int;
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precision highp float;
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precision highp sampler2D;
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in vec2 v_position2f;
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layout(location = 0) out float exposureOut1f;
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uniform sampler2D u_inputTexture;
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uniform vec2 u_inputSize2f;
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void main() {
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float a = 0.0;
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float b = 0.0;
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for(vec2 v = vec2(0.0, u_inputSize2f * 0.5); v.y < 1.0; v.y += u_inputSize2f.y) {
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for(v.x = u_inputSize2f.x * 0.5; v.x < 1.0; v.x += u_inputSize2f.x) {
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a += textureLod(u_inputTexture, v, 0.0).r * (1.0 - length(v - 0.5));
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b += 1.0;
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}
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}
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exposureOut1f = a / b;
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}
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