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17 lines
No EOL
452 B
GLSL
17 lines
No EOL
452 B
GLSL
#version 330
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in float signed_dist_to_curve;
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in float uv_stroke_width;
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in float uv_anti_alias_width;
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in vec4 color;
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out vec4 frag_color;
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void main() {
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if (uv_stroke_width == 0) discard;
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frag_color = color;
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// sdf for the region around the curve we wish to color.
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float signed_dist_to_region = abs(signed_dist_to_curve) - 0.5 * uv_stroke_width;
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frag_color.a *= smoothstep(0.5, -0.5, signed_dist_to_region / uv_anti_alias_width);
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} |