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-rw-r--r--src/math/Vector.cpp15
-rw-r--r--src/math/Vector.h9
-rw-r--r--src/math/VuVector.h4
3 files changed, 25 insertions, 3 deletions
diff --git a/src/math/Vector.cpp b/src/math/Vector.cpp
index ee76e555..e29d4335 100644
--- a/src/math/Vector.cpp
+++ b/src/math/Vector.cpp
@@ -44,3 +44,18 @@ operator*(const CMatrix &mat, const CVector &vec)
mat.ry * vec.x + mat.fy * vec.y + mat.uy * vec.z + mat.py,
mat.rz * vec.x + mat.fz * vec.y + mat.uz * vec.z + mat.pz);
}
+
+void
+RwV3dTransformPoints(CVector * pointsOut, const CVector * pointsIn, RwInt32 numPoints, const RwMatrix * matrix)
+{
+ while(numPoints--){
+ float x = pointsIn->x*matrix->right.x + pointsIn->y*matrix->up.x + pointsIn->z*matrix->at.x + matrix->pos.x;
+ float y = pointsIn->x*matrix->right.y + pointsIn->y*matrix->up.y + pointsIn->z*matrix->at.y + matrix->pos.y;
+ float z = pointsIn->x*matrix->right.z + pointsIn->y*matrix->up.z + pointsIn->z*matrix->at.z + matrix->pos.z;
+ pointsOut->x = x;
+ pointsOut->y = y;
+ pointsOut->z = z;
+ pointsOut++;
+ pointsIn++;
+ }
+}
diff --git a/src/math/Vector.h b/src/math/Vector.h
index 02128454..87895806 100644
--- a/src/math/Vector.h
+++ b/src/math/Vector.h
@@ -1,8 +1,12 @@
#pragma once
+// TODO(LCS): this should have 16 byte alignment but VS doesn't like passing aligned values by value
+// need a solution for this eventually if we ever want to load original assets
class CVector : public RwV3d
{
public:
+ float w;
+
CVector(void) {}
CVector(float x, float y, float z)
{
@@ -126,4 +130,7 @@ class CMatrix;
CVector Multiply3x3(const CMatrix &mat, const CVector &vec);
CVector Multiply3x3(const CVector &vec, const CMatrix &mat);
-CVector operator*(const CMatrix &mat, const CVector &vec); \ No newline at end of file
+CVector operator*(const CMatrix &mat, const CVector &vec);
+
+// we need this because CVector and RwV3d have different size now
+void RwV3dTransformPoints(CVector * pointsOut, const CVector * pointsIn, RwInt32 numPoints, const RwMatrix * matrix);
diff --git a/src/math/VuVector.h b/src/math/VuVector.h
index 41584095..ccaa4cfb 100644
--- a/src/math/VuVector.h
+++ b/src/math/VuVector.h
@@ -3,10 +3,10 @@
class TYPEALIGN(16) CVuVector : public CVector
{
public:
- float w;
+// float w; // in CVector now
CVuVector(void) {}
CVuVector(float x, float y, float z) : CVector(x, y, z) {}
- CVuVector(float x, float y, float z, float w) : CVector(x, y, z), w(w) {}
+ CVuVector(float x, float y, float z, float w) : CVector(x, y, z)/*, w(w)*/ { this->w = w;}
CVuVector(const CVector &v) : CVector(v.x, v.y, v.z) {}
CVuVector(const RwV3d &v) : CVector(v) {}
/*