Escape from the renderer before applying postprocessors

[libs/gl.git] / source / pipeline.cpp

diff --git a/source/pipeline.cpp b/source/pipeline.cpp
index 0df03ca7df7231931874355f855de9c3284cd148..8229515f96d6830846f0505590d811329715c946 100644 (file)
--- a/source/pipeline.cpp
+++ b/source/pipeline.cpp
@@ -49,8 +49,17 @@ void Pipeline::set_multisample(unsigned s)
        if(s==samples)
                return;
 
+       unsigned old_samples = samples;
        samples = s;
-       create_targets(1);
+       try
+       {
+               create_targets(1);
+       }
+       catch(...)
+       {
+               samples = old_samples;
+               throw;
+       }
 }
 
 void Pipeline::set_camera(const Camera *c)
@@ -160,6 +169,8 @@ void Pipeline::render(Renderer &renderer, const Tag &tag) const
                                renderer.render(*j->renderable, i->get_tag());
        }
 
+       renderer.escape();
+
        if(target[0])
        {
                if(samples)