summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--progs/demos/texenv.c3
1 files changed, 2 insertions, 1 deletions
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;