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Add Vector3 Projecting and Rejection to Raymath (#3263)

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* Update raymath.h

* formatting
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Ethan Simpson 2023-08-27 00:44:52 +12:00 committed by GitHub
parent 21f5482e0d
commit 828d273698
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src/raymath.h
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@ -713,6 +713,32 @@ RMAPI Vector3 Vector3Normalize(Vector3 v)
return result;
}
//Calculate the projection of the vector v1 on to v2
RMAPI Vector3 Vector3Project(Vector3 v1, Vector3 v2)
{
float v1dv2 = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
float v2dv2 = (v2.x*v2.x + v2.y*v2.y + v2.z*v2.z);
float mag = v1dv2/v2dv2;
Vector3 result = { v2.x*mag , v2.y*mag, v2.z*mag };
return result;
}
//Calculate the rejection of the vector v1 on to v2
RMAPI Vector3 Vector3Reject(Vector3 v1, Vector3 v2)
{
float v1dv2 = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
float v2dv2 = (v2.x*v2.x + v2.y*v2.y + v2.z*v2.z);
float mag = v1dv2/v2dv2;
Vector3 result = { v1.x - (v2.x*mag) , v1.y - (v2.y*mag), v1.z - (v2.z*mag) };
return result;
}
// Orthonormalize provided vectors
// Makes vectors normalized and orthogonal to each other
// Gram-Schmidt function implementation