From 4c178e3069fd7866910997f15af0fff4e77ffd26 Mon Sep 17 00:00:00 2001
From: taw27 <taw27@84d2e878-0bd5-11dd-ad15-13eda11d74c5>
Date: Sat, 21 Jun 2008 22:22:46 +0000
Subject: Don't use shader for transparent back faces

git-svn-id: svn://cook.msm.cam.ac.uk:745/thrust3d/thrust3d@103 84d2e878-0bd5-11dd-ad15-13eda11d74c5
---
 src/render.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/render.c b/src/render.c
index b82e706..4acce6b 100644
--- a/src/render.c
+++ b/src/render.c
@@ -701,6 +701,7 @@ void render_draw(Game *game, Uint32 t) {
 	glDisable(GL_LIGHT2);
 	
 	/* Back faces */
+	if ( r->shaders ) glUseProgram(0);	/* Speed things up a bit by not using per-fragment lighting for back faces */
 	glFrontFace(GL_CW);
 	glPolygonOffset(1.0, 1.0);
 	glEnable(GL_POLYGON_OFFSET_FILL);
@@ -711,7 +712,6 @@ void render_draw(Game *game, Uint32 t) {
 	glDisable(GL_POLYGON_OFFSET_FILL);
 	glFrontFace(GL_CCW);
 	
-	if ( r->shaders ) glUseProgram(0);
 	render_draw_2d(r, game);
 	
 	SDL_GL_SwapBuffers();
-- 
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