- Fixed normal transformation, as, obviously, normals MUST NOT be transformed by a 4x4 matrix: translation is meaningless on normals :P

- Added matrix.h to the .vcproj

desmume/src/matrix.c

@@ -30,7 +30,7 @@ void MatrixInit  (float *matrix)
 	matrix[0] = matrix[5] = matrix[10] = matrix[15] = 1.f;
 }
 
-void MatrixMultVec (float *matrix, float *vecPtr)
+void MatrixMultVec4x4 (float *matrix, float *vecPtr)
 {
 	float x = vecPtr[0];
 	float y = vecPtr[1];
@@ -41,6 +41,17 @@ void MatrixMultVec (float *matrix, float *vecPtr)
 	vecPtr[2] = x * matrix[2] + y * matrix[6] + z * matrix[10] + matrix[14];
 }
 
+void MatrixMultVec3x3 (float *matrix, float *vecPtr)
+{
+	float x = vecPtr[0];
+	float y = vecPtr[1];
+	float z = vecPtr[2];
+
+	vecPtr[0] = x * matrix[0] + y * matrix[4] + z * matrix[ 8];
+	vecPtr[1] = x * matrix[1] + y * matrix[5] + z * matrix[ 9];
+	vecPtr[2] = x * matrix[2] + y * matrix[6] + z * matrix[10];
+}
+
 void MatrixIdentity	(float *matrix)
 {
 	memset (matrix, 0, sizeof(float)*16);

desmume/src/matrix.h

@@ -29,7 +29,8 @@ typedef struct MatrixStack
 } MatrixStack;
 
 void	MatrixInit				(float *matrix);
-void	MatrixMultVec			(float *matrix, float *vecPtr);
+void	MatrixMultVec3x3		(float *matrix, float *vecPtr);
+void	MatrixMultVec4x4		(float *matrix, float *vecPtr);
 void	MatrixIdentity			(float *matrix);
 void	MatrixMultiply			(float *matrix, float *rightMatrix);
 float	MatrixGetMultipliedIndex(int index, float *matrix, float *rightMatrix);

desmume/src/windows/OGLRender.c

@@ -971,7 +971,7 @@ static __inline void  SetVertex()
 		SetTextureCoordinate (s2, t2); 
 	} 
 
-	MatrixMultVec (mtxCurrent[1], coordTransformed);
+	MatrixMultVec4x4 (mtxCurrent[1], coordTransformed);
 
 	glVertex3fv (coordTransformed); 
 	//glVertex3fv (coord); 
@@ -1377,7 +1377,7 @@ void NDS_glNormal(unsigned long v)
 		SetTextureCoordinate (s2, t2);
 	}
 
-	MatrixMultVec (mtxCurrent[2], normal);
+	MatrixMultVec3x3 (mtxCurrent[2], normal);
 
 	glNormal3fv(normal);
 }