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use the projection matrix stack

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Glenn Maynard
2002-11-15 08:22:53 +00:00
parent 3183844e5b
commit 344c513a62
1 changed files with 4 additions and 3 deletions
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stepmania/src/RageDisplay.cpp
+4 -3
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@@ -50,7 +50,6 @@ int g_iNumVerts;
int g_iFPS, g_iVPF, g_iDPF; int g_iFPS, g_iVPF, g_iDPF;
int g_PerspectiveMode = 0; int g_PerspectiveMode = 0;
RageMatrix matOldProj;
struct oglspecs_t { struct oglspecs_t {
/* OpenGL system information that generally doesn't change at runtime. */ /* OpenGL system information that generally doesn't change at runtime. */
@@ -497,8 +496,8 @@ void RageDisplay::EnterPerspective(float fov, bool preserve_loc)
/* Save the old matrices. */ /* Save the old matrices. */
DISPLAY->PushMatrix(); DISPLAY->PushMatrix();
DISPLAY->GetProjectionTransform( &matOldProj );
glMatrixMode( GL_PROJECTION ); glMatrixMode( GL_PROJECTION );
glPushMatrix();
glLoadIdentity(); glLoadIdentity();
float aspect = SCREEN_WIDTH/(float)SCREEN_HEIGHT; float aspect = SCREEN_WIDTH/(float)SCREEN_HEIGHT;
gluPerspective(fov, aspect, 1.000f, 1000.0f); gluPerspective(fov, aspect, 1.000f, 1000.0f);
@@ -550,7 +549,9 @@ void RageDisplay::ExitPerspective()
if(g_PerspectiveMode) return; if(g_PerspectiveMode) return;
/* Restore the old matrices. */ /* Restore the old matrices. */
DISPLAY->SetProjectionTransform( &matOldProj ); glMatrixMode( GL_PROJECTION );
glPopMatrix();
glMatrixMode( GL_MODELVIEW );
DISPLAY->PopMatrix(); DISPLAY->PopMatrix();
/* Restore the viewport. */ /* Restore the viewport. */