diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2002-11-28 15:51:55 +0000 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2002-11-28 15:51:55 +0000 |
| commit | 1b94df053d9eabf774d7f5c957f96aeedfe29f51 (patch) | |
| tree | dbc9a135613a08fa00bf0567200a83e2721265af /progs/demos/gloss.c | |
| parent | 957a0cdb13d2564a17c1fc9f6600d6cd56cb48d7 (diff) | |
use polygon offset to avoid multi-pass Z-fighting artifacts
Diffstat (limited to 'progs/demos/gloss.c')
| -rw-r--r-- | progs/demos/gloss.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/progs/demos/gloss.c b/progs/demos/gloss.c index f39d8d1609..9f9703ac6c 100644 --- a/progs/demos/gloss.c +++ b/progs/demos/gloss.c @@ -1,4 +1,4 @@ -/* $Id: gloss.c,v 1.6 2000/12/24 22:53:54 pesco Exp $ */ +/* $Id: gloss.c,v 1.7 2002/11/28 15:51:55 brianp Exp $ */ /* * Specular reflection demo. The specular highlight is modulated by @@ -85,9 +85,9 @@ static void Display( void ) glCallList(Object); /* Second pass: specular lighting with reflection texture */ + glEnable(GL_POLYGON_OFFSET_FILL); glBlendFunc(GL_ONE, GL_ONE); /* add */ glEnable(GL_BLEND); - glDepthFunc(GL_LEQUAL); glMaterialfv(GL_FRONT, GL_DIFFUSE, Black); glMaterialfv(GL_FRONT, GL_SPECULAR, White); if (DoSpecTexture) { @@ -102,6 +102,7 @@ static void Display( void ) glDisable(GL_TEXTURE_GEN_S); glDisable(GL_TEXTURE_GEN_T); glDisable(GL_BLEND); + glDisable(GL_POLYGON_OFFSET_FILL); glPopMatrix(); @@ -341,6 +342,8 @@ static void Init( int argc, char *argv[] ) glEnable(GL_DEPTH_TEST); glEnable(GL_NORMALIZE); + glPolygonOffset( -1, -1 ); + if (argc > 1 && strcmp(argv[1], "-info")==0) { printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); |