From 4d40265e2418d56d58e026fd6583775b296fb146 Mon Sep 17 00:00:00 2001
From: aignacio_sf <>
Date: Wed, 20 Dec 2006 02:21:11 +0000
Subject: [PATCH] Render target textures must not be compressed.

---
 panda/src/glstuff/glGraphicsStateGuardian_src.cxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/panda/src/glstuff/glGraphicsStateGuardian_src.cxx b/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
index 075114d8ff..728b3dc840 100644
--- a/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
+++ b/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
@@ -4842,6 +4842,10 @@ get_internal_image_format(Texture *tex) const {
   if (compression == Texture::CM_default) {
     compression = (compressed_textures) ? Texture::CM_on : Texture::CM_off;
   }
+  if (tex->get_render_to_texture()) {
+    // no compression for render targets
+    compression = Texture::CM_off;
+  }
   bool is_3d = (tex->get_texture_type() == Texture::TT_3d_texture);
 
   if (get_supports_compressed_texture_format(compression)) {