23 lines
485 B
Plaintext
23 lines
485 B
Plaintext
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varying vec4 positionEC;
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void main()
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{
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// TODO: make arbitrary ellipsoid
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czm_ellipsoid ellipsoid = czm_getWgs84EllipsoidEC();
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vec3 direction = normalize(positionEC.xyz);
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czm_ray ray = czm_ray(vec3(0.0), direction);
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czm_raySegment intersection = czm_rayEllipsoidIntersectionInterval(ray, ellipsoid);
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if (!czm_isEmpty(intersection))
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{
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gl_FragColor = vec4(1.0, 1.0, 0.0, 1.0);
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}
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else
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{
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discard;
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}
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czm_writeLogDepth();
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}
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