29 lines
848 B
GLSL
29 lines
848 B
GLSL
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in vec4 v_pickColor;
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in vec4 v_color;
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in vec4 v_outlineColor;
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in float v_innerRadiusFrac;
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void main()
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{
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// Distance between fragment and point center, 0 to 0.5.
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float distanceToCenter = length(gl_PointCoord - vec2(0.5));
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float delta = fwidth(distanceToCenter);
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float outerLimit = 0.5;
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float innerLimit = 0.5 * v_innerRadiusFrac;
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float outerAlpha = 1.0 - smoothstep(max(0.0, outerLimit - delta), outerLimit, distanceToCenter);
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float innerAlpha = 1.0 - smoothstep(innerLimit - delta, innerLimit, distanceToCenter);
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vec4 color = vec4(mix(v_outlineColor.rgb, v_color.rgb, innerAlpha), outerAlpha);
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color.a *= mix(v_outlineColor.a, v_color.a, innerAlpha);
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if (color.a < 0.005) // matches 0/255 and 1/255
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{
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discard;
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}
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out_FragColor = czm_gammaCorrect(color);
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czm_writeLogDepth();
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}
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