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Improve Matrix4::FromQuaternion

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This commit is contained in:
Christian Semmler 2024-12-25 11:53:27 -07:00
parent 5f297218fc
commit 0622056f4c
1 changed files with 24 additions and 24 deletions
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48
LEGO1/realtime/matrix.h
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@ -243,38 +243,38 @@ inline void Matrix4::ToQuaternion(Vector4& p_outQuat)
// FUNCTION: BETA10 0x10010550 // FUNCTION: BETA10 0x10010550
inline int Matrix4::FromQuaternion(const Vector4& p_vec) inline int Matrix4::FromQuaternion(const Vector4& p_vec)
{ {
float len = p_vec.LenSquared(); float local14 = p_vec.LenSquared();
if (len > 0.0f) { if (local14 > 0.0f) {
float v7 = 2.0f / len; local14 = 2.0f / local14;
float v9 = p_vec[0] * v7; float local24 = p_vec[0] * local14;
float v11 = p_vec[1] * v7; float local34 = p_vec[1] * local14;
float v12 = p_vec[2] * v7; float local10 = p_vec[2] * local14;
float v13 = p_vec[3] * v9; float local28 = p_vec[3] * local24;
float v14 = p_vec[3] * v11; float local2c = p_vec[3] * local34;
float v16 = p_vec[3] * v12; float local30 = p_vec[3] * local10;
float v17 = p_vec[0] * v9; float local38 = p_vec[0] * local24;
float v22 = p_vec[0] * v11; float local8 = p_vec[0] * local34;
float v23 = p_vec[0] * v12; float localc = p_vec[0] * local10;
float v18 = p_vec[1] * v11; float local18 = p_vec[1] * local34;
float v24 = p_vec[1] * v12; float local1c = p_vec[1] * local10;
float v19 = p_vec[2] * v12; float local20 = p_vec[2] * local10;
m_data[0][0] = 1.0f - (v18 + v19); m_data[0][0] = 1.0f - (local18 + local20);
m_data[1][0] = v22 + v16; m_data[1][0] = local8 + local30;
m_data[2][0] = v23 - v14; m_data[2][0] = localc - local2c;
m_data[0][1] = v22 - v16; m_data[0][1] = local8 - local30;
m_data[1][1] = 1.0f - (v17 + v19); m_data[1][1] = 1.0f - (local38 + local20);
m_data[2][1] = v24 + v13; m_data[2][1] = local1c + local28;
m_data[0][2] = v14 + v23; m_data[0][2] = local2c + localc;
m_data[1][2] = v24 - v13; m_data[1][2] = local1c - local28;
m_data[2][2] = 1.0f - (v18 + v17); m_data[2][2] = 1.0f - (local18 + local38);
m_data[3][0] = 0; m_data[3][0] = 0;
m_data[3][1] = 0; m_data[3][1] = 0;