19 lines
341 B
Text
19 lines
341 B
Text
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shader_type canvas_item;
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// Size in pixels.
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uniform float size = 100.;
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// Zoom level assuming a planet of normalized size.
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varying float zoom;
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void vertex() {
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zoom = 8. / (size * CANVAS_MATRIX[0][0]);
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}
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void fragment() {
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float r = length(UV - .5) * -8. + 2.;
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float d = abs(r);
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COLOR *= vec4(1., 1., 1., smoothstep(zoom, 0., d));
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}
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