static void DrawFps()
{
glPushMatrix();
glLoadIdentity();
SetOrthographicProjection();
glColor3f(0.0f, 0.0f, 0.0f);
RenderQuad(25, 6, 50, 12);
glColor3f(1.0f, 1.0f, 1.0f);
RenderBitmapString(5, 10, GLUT_BITMAP_TIMES_ROMAN_10, FpsString);
glPopMatrix();
RestorePerspectiveProjection();
}
void MCrossFade::Render(float red, float green, float blue)
{
if (m_active == false)
return;
glPushMatrix();
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_DEPTH_TEST);
glDisable(GL_TEXTURE_2D);
SetOrthographicProjection();
glLoadIdentity();
float w = (float) m_viewport[2];
float h = (float) m_viewport[3];
// Have the alpha start at 0.5 and go to 0
float alpha = 0.5f - 0.5f * (float) m_frame / (float) m_totalFrames;
// Render full screen quad
glColor4f(red, green, blue, alpha);
glBegin(GL_QUADS);
glVertex3f(0, 0, 0);
glVertex3f(0, h, 0);
glVertex3f(w, h, 0);
glVertex3f(w, 0, 0);
glEnd();
RestorePerspectiveProjection();
glPopMatrix();
glEnable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
glDisable(GL_BLEND);
}
