23 lines
567 B
GLSL
23 lines
567 B
GLSL
vec3 rotateVector(vec4 quat, vec3 vec)
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{
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return vec + 2.0 * cross(cross(vec, quat.xyz) + quat.w * vec, quat.xyz);
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}
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vec4 getWorldPosition(vec3 origin, vec4 rotation, vec3 scale, vec3 local_pos)
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{
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local_pos = local_pos * scale;
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local_pos = rotateVector(rotation, local_pos);
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local_pos = local_pos + origin;
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return vec4(local_pos, 1.0);
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}
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vec4 convert10BitVector(vec4 orig)
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{
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vec4 ret;
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ret.x = orig.x * 0.00195694715;
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ret.y = orig.y * 0.00195694715;
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ret.z = orig.z * 0.00195694715;
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ret.w = max(orig.w, -1.0);
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return ret;
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}
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