Clément Foucault
1d23024014
Also this display is optimized. It does not use blending and pixel discard. Working with scanned data should be more pleasant with this. A better option would be to use gl_FragDepth to have a better sense of volume but this discards early depth test.
20 lines
455 B
GLSL
20 lines
455 B
GLSL
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uniform vec4 color;
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uniform vec4 innerColor;
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out vec4 fragColor;
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void main()
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{
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vec2 centered = abs(gl_PointCoord - vec2(0.5));
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float dist = max(centered.x, centered.y);
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float fac = dist * dist * 4.0;
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fragColor = mix(innerColor, color, 0.45 + fac * 0.65);
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/* Make the effect more like a fresnel by offsetting
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* the depth and creating mini-spheres.
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* Disabled as it has performance impact. */
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// gl_FragDepth = gl_FragCoord.z + 1e-6 * fac;
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}
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