luboslenco
18 lines
455 B
GLSL
18 lines
455 B
GLSL
#version 450
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uniform sampler2D tex;
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in vec2 tex_coord;
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out vec4 frag_color;
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void main() {
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const float auto_exposure_speed = 1.0;
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frag_color.a = 0.01 * auto_exposure_speed;
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frag_color.rgb = textureLod(tex, vec2(0.5, 0.5), 0.0).rgb +
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textureLod(tex, vec2(0.2, 0.2), 0.0).rgb +
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textureLod(tex, vec2(0.8, 0.2), 0.0).rgb +
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textureLod(tex, vec2(0.2, 0.8), 0.0).rgb +
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textureLod(tex, vec2(0.8, 0.8), 0.0).rgb;
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frag_color.rgb /= 5.0;
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}
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