24 lines
445 B
GLSL
24 lines
445 B
GLSL
#ifdef GLES
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precision highp float;
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#endif
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uniform mat4 u_mvp;
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uniform float u_scale;
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attribute vec2 a_pos;
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void main() {
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gl_Position = u_mvp * vec4(a_pos, 0.0, 1.0);
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gl_PointSize = 2.0 * u_scale / gl_Position.z;
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}
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$$
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#ifdef GLES
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precision highp float;
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#endif
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uniform vec4 u_color;
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void main() {
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vec2 cxy = 2.0 * gl_PointCoord - 1.0;
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float r = dot(cxy, cxy);
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float len = 1.0 - length(r);
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gl_FragColor = u_color * len;
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}
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