Mirrors/bx
1
0
Fork 0
mirror of https://github.com/bkaradzic/bx.git synced 2026-02-19 13:33:00 +01:00
Code Issues Packages Projects Releases Wiki Activity

Added mtxOrthoLh().

Browse Source
This commit is contained in:
Dario Manesku
2016-02-26 07:51:09 +01:00
parent 3b6f5bde05
commit f8b0dae1b9
1 changed files with 25 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
include/bx/fpumath.h
View File

@@ -720,7 +720,26 @@ namespace bx
mtxProjRh(_result, _fovy, _aspect, _near, _far, _oglNdc);
}
inline void mtxOrtho(float* _result, float _left, float _right, float _bottom, float _top, float _near, float _far, float _offset = 0.0f, bool _oglNdc = false)
inline void mtxOrthoLh(float* _result, float _left, float _right, float _bottom, float _top, float _near, float _far, float _offset = 0.0f, bool _oglNdc = false)
{
const float aa = 2.0f/(_right - _left);
const float bb = 2.0f/(_top - _bottom);
const float cc = (_oglNdc ? 2.0f : 1.0f) / (_far - _near);
const float dd = (_left + _right)/(_left - _right);
const float ee = (_top + _bottom)/(_bottom - _top);
const float ff = _oglNdc ? (_near + _far)/(_near - _far) : _near/(_near - _far);
memset(_result, 0, sizeof(float)*16);
_result[ 0] = aa;
_result[ 5] = bb;
_result[10] = -cc;
_result[12] = dd + _offset;
_result[13] = ee;
_result[14] = ff;
_result[15] = 1.0f;
}
inline void mtxOrthoRh(float* _result, float _left, float _right, float _bottom, float _top, float _near, float _far, float _offset = 0.0f, bool _oglNdc = false)
{
const float aa = 2.0f/(_right - _left);
const float bb = 2.0f/(_top - _bottom);
@@ -739,6 +758,11 @@ namespace bx
_result[15] = 1.0f;
}
inline void mtxOrtho(float* _result, float _left, float _right, float _bottom, float _top, float _near, float _far, float _offset = 0.0f, bool _oglNdc = false)
{
return mtxOrthoRh(_result, _left, _right, _bottom, _top, _near, _far, _offset, _oglNdc);
}
inline void mtxRotateX(float* _result, float _ax)
{
const float sx = fsin(_ax);