How to know if OpenCL is working

Support Compositing and Post Processing
1

Hi,

is there any chance to determine if OpenCL in compositor is working? I am very new to Blender compositing, so all i did was just clicking the OpenCL checkbox. In preferences, i have enabled CUDA device and set it to my GTX660Ti card.

However, i do not observe absolutely any performance difference when i enable or disable OpenCL checkbox. Is it limited to just some of the nodes? Or do i have to do something else to make OpenCL work?

2

Hi rawalanche, the settings in User Preferences are only for Rendering.
OpenCL is working out of the box, there are only 4 nodes supported:

http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.64/Compositing_Nodes#OpenCL

Cheers, mib

3

Gaussian blur (blur node) works in the dev builds as well. Also, bokeh-blur node is somewhat buggy in OpenCL mode: https://developer.blender.org/T37832

4

Ahhh… so it’s not completely OpenCL compositor, just a few nodes. That explains a lot. Thanks!