mirror of https://github.com/mode777/rayjs.git
26 lines
613 B
Forth
26 lines
613 B
Forth
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#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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varying vec4 fragColor;
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// Input uniform values
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uniform sampler2D texture0; // Depth texture
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uniform vec4 colDiffuse;
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// NOTE: Add here your custom variables
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void main()
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{
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float zNear = 0.01; // camera z near
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float zFar = 10.0; // camera z far
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float z = texture2D(texture0, fragTexCoord).x;
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// Linearize depth value
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float depth = (2.0*zNear)/(zFar + zNear - z*(zFar - zNear));
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// Calculate final fragment color
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gl_FragColor = vec4(depth, depth, depth, 1.0f);
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}
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