30 lines
922 B
GLSL
30 lines
922 B
GLSL
uniform vec4 color;
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uniform vec4 outlineColor;
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uniform float outlineWidth;
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in float v_width;
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czm_material czm_getMaterial(czm_materialInput materialInput)
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{
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czm_material material = czm_getDefaultMaterial(materialInput);
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vec2 st = materialInput.st;
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float halfInteriorWidth = 0.5 * (v_width - outlineWidth) / v_width;
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float b = step(0.5 - halfInteriorWidth, st.t);
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b *= 1.0 - step(0.5 + halfInteriorWidth, st.t);
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// Find the distance from the closest separator (region between two colors)
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float d1 = abs(st.t - (0.5 - halfInteriorWidth));
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float d2 = abs(st.t - (0.5 + halfInteriorWidth));
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float dist = min(d1, d2);
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vec4 currentColor = mix(outlineColor, color, b);
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vec4 outColor = czm_antialias(outlineColor, color, currentColor, dist);
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outColor = czm_gammaCorrect(outColor);
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material.diffuse = outColor.rgb;
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material.alpha = outColor.a;
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return material;
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}
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