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Additional 3d support

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This commit is contained in:
Brian Fiete 2021-05-25 10:57:22 -04:00
parent 369bb0640c
commit 39c140f44a
27 changed files with 4063 additions and 126 deletions
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20
BeefySysLib/util/Vector.cpp
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@ -4,6 +4,13 @@
USING_NS_BF;
Vector3::Vector3()
{
mX = 0;
mY = 0;
mZ = 0;
}
Vector3::Vector3(float x, float y, float z)
{
mX = x;
@ -16,6 +23,11 @@ float Vector3::GetMagnitude() const
return sqrtf(mX*mX + mY*mY + mZ*mZ);
}
float Vector3::GetMagnitudeSquare() const
{
return mX * mX + mY * mY + mZ * mZ;
}
Vector3 Vector3::Normalize(const Vector3& vec)
{
float mag = vec.GetMagnitude();
@ -39,6 +51,14 @@ Vector3 Vector3::CrossProduct(const Vector3& vec1, const Vector3& vec2)
}
Vector3 Vector3::Transform(const Vector3& vec, const Matrix4& matrix)
{
return Vector3(
(matrix.m00 * vec.mX + matrix.m01 * vec.mY + matrix.m02 * vec.mZ + matrix.m03),
(matrix.m10 * vec.mX + matrix.m11 * vec.mY + matrix.m12 * vec.mZ + matrix.m13),
(matrix.m20 * vec.mX + matrix.m21 * vec.mY + matrix.m22 * vec.mZ + matrix.m23));
}
Vector3 Vector3::TransformW(const Vector3& vec, const Matrix4& matrix)
{
float fInvW = 1.0f / (matrix.m30 * vec.mX + matrix.m31 * vec.mY + matrix.m32 * vec.mZ + matrix.m33);