Files
armorpaint/Shaders/common/histogram_pass.frag.glsl
T
2019-12-12 23:50:43 +01:00

18 lines
446 B
GLSL

#version 450
uniform sampler2D tex;
in vec2 texCoord;
out vec4 fragColor;
void main() {
const float autoExposureSpeed = 1.0;
fragColor.a = 0.01 * autoExposureSpeed;
fragColor.rgb = textureLod(tex, vec2(0.5, 0.5), 0.0).rgb +
textureLod(tex, vec2(0.2, 0.2), 0.0).rgb +
textureLod(tex, vec2(0.8, 0.2), 0.0).rgb +
textureLod(tex, vec2(0.2, 0.8), 0.0).rgb +
textureLod(tex, vec2(0.8, 0.8), 0.0).rgb;
fragColor.rgb /= 5.0;
}