ilikecats/stk-code_catmod
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

irr: Add a more specific ortho matrix creator

Browse Source 
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@13546 178a84e3-b1eb-0310-8ba1-8eac791a3b58
This commit is contained in:
curaga 2013-08-22 15:40:02 +00:00
parent ebea0a49f9
commit 6b46c2bed7
1 changed files with 38 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
lib/irrlicht/include/matrix4.h
View File

@ -279,6 +279,9 @@ namespace core
//! Builds a left-handed orthogonal projection matrix.
CMatrix4<T>& buildProjectionMatrixOrthoLH(f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar);
//! Builds a left-handed orthogonal projection matrix, with specific corners.
CMatrix4<T>& buildProjectionMatrixOrthoLH(f32 left, f32 right, f32 up, f32 down, f32 zNear, f32 zFar);
//! Builds a right-handed orthogonal projection matrix.
CMatrix4<T>& buildProjectionMatrixOrthoRH(f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar);
@ -1633,6 +1636,41 @@ namespace core
return *this;
}
// Builds a left-handed orthogonal projection matrix, with specific corners.
template <class T>
inline CMatrix4<T>& CMatrix4<T>::buildProjectionMatrixOrthoLH(
f32 left, f32 right, f32 up, f32 down,
f32 zNear, f32 zFar)
{
_IRR_DEBUG_BREAK_IF(zNear == zFar); //divide by zero
_IRR_DEBUG_BREAK_IF(right == left); //divide by zero
_IRR_DEBUG_BREAK_IF(up == down); //divide by zero
M[0] = (T)(2/(right - left));
M[1] = 0;
M[2] = 0;
M[3] = 0;
M[4] = 0;
M[5] = (T)(2/(up - down));
M[6] = 0;
M[7] = 0;
M[8] = 0;
M[9] = 0;
M[10] = (T)(1/(zFar - zNear));
M[11] = 0;
M[12] = (T)-((right + left) / (right - left));
M[13] = (T)-((up + down) / (up - down));
M[14] = (T)(zNear/(zNear-zFar));
M[15] = 1;
#if defined ( USE_MATRIX_TEST )
definitelyIdentityMatrix=false;
#endif
return *this;
}
// Builds a right-handed orthogonal projection matrix.
template <class T>