11 lines
296 B
Plaintext
11 lines
296 B
Plaintext
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#pragma glslify: rotateAxisAngle = require(./rotateAxisAngle);
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vec3 lookAt(vec3 base, vec3 p1, vec3 p2, vec3 up) {
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vec3 diff = normalize(p2 - p1);
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float d = dot(diff, up);
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vec3 c = cross(p1, p2);
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float a = acos(d);
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return rotateAxisAngle(base, c, a);
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}
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#pragma glslify: export(lookAt)
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