From 94476fd1f0e402a237f1b4cf5d77347a7ec4f682 Mon Sep 17 00:00:00 2001
From: rdb <git@rdb.name>
Date: Wed, 4 Apr 2018 21:46:01 +0200
Subject: [PATCH] glgsg: fix invalid operation error with multisample FBO

Panda is forgetting to reset the current FBO when resolving multisamples.
---
 panda/src/glstuff/glGraphicsBuffer_src.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/panda/src/glstuff/glGraphicsBuffer_src.cxx b/panda/src/glstuff/glGraphicsBuffer_src.cxx
index 43f3dbd809..35daa0b225 100644
--- a/panda/src/glstuff/glGraphicsBuffer_src.cxx
+++ b/panda/src/glstuff/glGraphicsBuffer_src.cxx
@@ -1767,6 +1767,7 @@ resolve_multisamples() {
   }
   glgsg->_glBindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, fbo);
   glgsg->_glBindFramebuffer(GL_READ_FRAMEBUFFER_EXT, _fbo_multisample);
+  glgsg->_current_fbo = fbo;
 
   // If the depth buffer is shared, resolve it only on the last to render FBO.
   bool do_depth_blit = false;