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-rw-r--r--progs/demos/shadowtex.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/progs/demos/shadowtex.c b/progs/demos/shadowtex.c
index a68ad77a1f8..88949b764db 100644
--- a/progs/demos/shadowtex.c
+++ b/progs/demos/shadowtex.c
@@ -1,4 +1,4 @@
-/* $Id: shadowtex.c,v 1.1 2001/02/20 16:43:50 brianp Exp $ */
+/* $Id: shadowtex.c,v 1.2 2001/02/20 17:06:35 brianp Exp $ */
/*
* Shadow demo using the GL_SGIX_depth_texture, GL_SGIX_shadow and
@@ -347,12 +347,15 @@ Init(void)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+#ifdef GL_SGIX_shadow
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_SGIX, GL_TRUE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_OPERATOR_SGIX,
GL_TEXTURE_LEQUAL_R_SGIX);
-
+#endif
+#ifdef GL_SGIX_shadow_ambient
if (glutExtensionSupported("GL_SGIX_shadow_ambient"))
glTexParameterf(GL_TEXTURE_2D, GL_SHADOW_AMBIENT_SGIX, 0.3);
+#endif
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHTING);