//---------------------------------------------------------------------------
void
GrProjection::RecomputeMatrix() const
{
assert( m_bDirty );
if ( IsOrtho() )
{
// orthographic.
_glhOrthof2( (PxF32*)m.cProjMat.GetData(), m_fLeft, m_fRight, m_fBottom, m_fTop, m_fZNear, m_fZFar );
}
else
{
// TODO: incorporate left/right/bottom/top to perform offcenter projection!
assert( (m_fLeft == -1.0F) && (m_fRight == 1.0F) && (m_fBottom == -1.0F) && (m_fTop == 1.0F) );
if ( m_fZFar == 0.0F )
{
// infinite perspective projection matrix.
_glhPerspectiveInfiniteFarPlanef2( (PxF32*)m.cProjMat.GetData(), RadToDeg(m_fFovY), m_fAspect, m_fZNear );
}
else
{
// regular perspective projection matrix.
_glhPerspectivef2( (PxF32*)m.cProjMat.GetData(), RadToDeg(m_fFovY), m_fAspect, m_fZNear, m_fZFar );
}
}
}
void OpenGLSceneRenderer::doRenderBegin(const Scene& scene, const SkyDragonEngineOptions& engineOptions) {
if (!_initialized) {
LOG4CPLUS_DEBUG(_logger, "Initializing renderer.");
_initialize();
}
glPushMatrix();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
float matrix[16];
glLoadIdentity();
_glhPerspectivef2(matrix, 45, 1024./768., 0.1, 100.);
glMultMatrixf(matrix);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glShadeModel(GL_SMOOTH );
}
