20 lines
474 B
Plaintext
20 lines
474 B
Plaintext
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vec3 rotateAxisAngle(vec3 p, vec3 axis, float angle){
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float c = cos(angle);
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float s = sin(angle);
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float t = 1.0 - c;
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vec3 a = normalize(axis);
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mat3 m = mat3(
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t * a.x * a.x + c,
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t * a.x * a.y + a.z * s,
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t * a.x * a.z - a.y * s,
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t * a.y * a.x - a.z * s,
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t * a.y * a.y + c,
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t * a.y * a.z + a.x * s,
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t * a.z * a.x + a.y * s,
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t * a.z * a.y - a.x * s,
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t * a.z * a.z + c
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);
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return m * p;
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}
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#pragma glslify: export(rotateAxisAngle)
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