From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 26 Mar 2004 18:05:36 +0000 (+0000)
Subject: clamp BiasMin, BiasMax to reasonable values
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f132413965a49c0554988a88edb8b101de657493;p=mesa.git

clamp BiasMin, BiasMax to reasonable values
---

diff --git a/progs/demos/lodbias.c b/progs/demos/lodbias.c
index bee06da80b0..a9b5312fd75 100644
--- a/progs/demos/lodbias.c
+++ b/progs/demos/lodbias.c
@@ -252,6 +252,14 @@ static void Init( void )
    printf("LOD bias range: [%g, %g]\n", -maxBias, maxBias);
    BiasMin = -100 * maxBias;
    BiasMax =  100 * maxBias;
+
+   /* Since we have (about) 8 mipmap levels, no need to bias beyond
+    * the range [-1, +8].
+    */
+   if (BiasMin < -100)
+      BiasMin = -100;
+   if (BiasMax > 800)
+      BiasMax = 800;
 }