From: Frederic Bouvier <fredfgfs01@free.fr>
Date: Wed, 26 Sep 2012 06:38:04 +0000 (+0200)
Subject: Provide a definition for GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=700b0bc7768aa170e099fcf5341483a9a1f89e7b;p=simgear.git

Provide a definition for GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
---

diff --git a/simgear/scene/material/Effect.cxx b/simgear/scene/material/Effect.cxx
index e607c2e5..70f8e8fe 100644
--- a/simgear/scene/material/Effect.cxx
+++ b/simgear/scene/material/Effect.cxx
@@ -608,6 +608,10 @@ struct AlphaToCoverageBuilder : public PassAttributeBuilder
                         const SGReaderWriterOptions* options);
 };
 
+#ifndef GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
+#define GL_SAMPLE_ALPHA_TO_COVERAGE_ARB 0x809E
+#endif
+
 void AlphaToCoverageBuilder::buildAttribute(Effect* effect, Pass* pass,
                                      const SGPropertyNode* prop,
                                      const SGReaderWriterOptions* options)