Blender OpenCL Node Compositing

I wonder how it will work with such branches as Cycles that may result in rebuilding the whole node system. Still I would like to test Windows build.

I think OpenCL node comp, had focus on image compositing, cycles is focused on shaders.

but one thing they might have in comon is making a blender opencl api, to help utilize opencl with blender.

It’s not only shaders and comp, there’s also the particles branch (which also includes modifiers and constraints I think) and the BGE nodes gsoc project. So blender is going through a node overhaul. Brecht is responsible for coordinating the node development so I’m sure at it will work out fine :slight_smile:

@GG oh cool! Im sure about that me too.

@Juicyfruit Totally would appreciate a windows build! been looking forward to this improvement for quite a while!

After a quick read up I see that OpenCL is a language extension that harnesses CPU/GPUs. How will I know if my PC will take advantage of this new instruction set? Can I estimate performance increase? Do I have to have Nvidia and then only certain supported cards?

So far the compositor work that has been done is purely CPU based acceleration, laying the foundations for opencl performance increases in the future.

OpenCL usually requires hardware which has been made in the last 3 years… I think anything in the 8000 series or higher for nvidia and the 4000 series or higher from ATI will support it… as for cpu’s that support opencl i am not sure which ones.

Heres something to go by: http://developer.amd.com/gpu/AMDAPPSDK/pages/DriverCompatibility.aspx
or you can use this program (windows): http://www.techpowerup.com/downloads/SysInfo/GPU-Z/
Cheers

but the demo videos? he’s using a nv 260 __ that’s way faster than the i7 qc. Maybe the branch just have the tile based improvements to the compositor.

The demo videos using opencl were a proof of concept… this tile compositing is needed before opencl can be used to accelerate it properly (using a non-hacked version of blender)

non-hacking is good :slight_smile: more stable, well neat to hear just by organizing it better we got CPU increased performance for compositing.

Hi all. Wher to download this latest version for my windows 32 bit? Please tell me.


It’s the latest version but already one month old. Don’t expect to much from it.
Tile based compositing works good but I didn’t figured out how to use OpenCL and the compositor is quite unstable. Some nodes cause crashes and some work.

I have this version already but is not like this : http://www.youtube.com/watch?v=rVvtDHh9HvI

Any chance we can get an updated build for windows on graphicall?