From 22dad683b18e822579fab03b2ae96b62f1a4e740 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 11 Jun 2004 15:07:23 +0000
Subject: don't pass GL_INTENSITY for <format> to glTexImage2D - it's illegal

---
 progs/demos/texenv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'progs/demos/texenv.c')

diff --git a/progs/demos/texenv.c b/progs/demos/texenv.c
index d64ae2ee26..590867b494 100644
--- a/progs/demos/texenv.c
+++ b/progs/demos/texenv.c
@@ -354,7 +354,8 @@ static void loadTexture( int width, int height,
       break;
    case GL_INTENSITY:
       luminanceSize = 1;
-      textureFormat = GL_INTENSITY;
+      /* Note: format=GL_INTENSITY for glTexImage is not legal */
+      textureFormat = GL_LUMINANCE;
       break;
    case GL_ALPHA:
       alphaSize = 1;
-- 
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