30 lines
651 B
GLSL
30 lines
651 B
GLSL
#version 100
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precision mediump float;
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// Input vertex attributes (from vertex shader)
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varying vec2 fragTexCoord;
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// Input uniform values
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uniform sampler2D depthTexture;
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uniform bool flipY;
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float nearPlane = 0.1;
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float farPlane = 100.0;
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void main()
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{
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// Handle potential Y-flipping
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vec2 texCoord = fragTexCoord;
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if (flipY) texCoord.y = 1.0 - texCoord.y;
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// Sample depth texture
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float depth = texture2D(depthTexture, texCoord).r;
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// Linearize depth
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float linearDepth = (2.0*nearPlane)/(farPlane + nearPlane - depth*(farPlane - nearPlane));
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// Output final color
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gl_FragColor = vec4(vec3(linearDepth), 1.0);
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}
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