nuclear@11: #include "opengl.h"
nuclear@11: #include "post.h"
nuclear@11: 
nuclear@11: void overlay(float r, float g, float b, float a)
nuclear@11: {
nuclear@11: 	glPushAttrib(GL_ENABLE_BIT);
nuclear@11: 	glDisable(GL_DEPTH_TEST);
nuclear@11: 	glDisable(GL_LIGHTING);
nuclear@11: 
nuclear@11: 	glMatrixMode(GL_MODELVIEW);
nuclear@11: 	glPushMatrix();
nuclear@11: 	glLoadIdentity();
nuclear@11: 	glMatrixMode(GL_PROJECTION);
nuclear@11: 	glPushMatrix();
nuclear@11: 	glLoadIdentity();
nuclear@11: 
nuclear@11: 	glBegin(GL_QUADS);
nuclear@11: 	glColor4f(r, g, b, a);
nuclear@11: 	glTexCoord2f(0, 0); glVertex2f(-1, -1);
nuclear@11: 	glTexCoord2f(1, 0); glVertex2f(1, -1);
nuclear@11: 	glTexCoord2f(1, 1); glVertex2f(1, 1);
nuclear@11: 	glTexCoord2f(0, 1); glVertex2f(-1, 1);
nuclear@11: 	glEnd();
nuclear@11: 
nuclear@11: 	glPopMatrix();
nuclear@11: 	glMatrixMode(GL_MODELVIEW);
nuclear@11: 	glPopMatrix();
nuclear@11: 
nuclear@11: 	glPopAttrib();
nuclear@11: }