- User Since
- Jun 7 2013, 4:46 PM (301 w, 6 d)
Apr 3 2016
Yes I am positive I am Using GPU Render on my system.
User preferences OpenCL Device is set to (Tahiti)
and your default settings in the file you submitted has the Render settings of supported and GPU Compute.
Works fine on my system. it may be a Problem with the new AMD GPU's as I see you have the R9.
Apr 2 2016
Just tested on
AMD 7970 6gb
AMD Driver 16.3.2
Mar 26 2015
Tested a few Tile sizes
found x-480 y-540 in the BMW scene gets me render times of 31.98sec
Ok Built A release version and now I have no crashes.
Render times are still about 48sec.
for me this is not a gain from without the patch.
Mar 25 2015
I am using debug Build
and I have AMD Driver 15.3 beta installed.
I looked over the build settings in Cmake and found there are some LIB Problems.
the win64_vc12 are missing Cmake config files for FFmpeg.
don't know if this could be adding to the problem or not.
I Have built blender with this patch installed and it does work but I get a random crash after render finishes, sometimes its fine others I get a CTD.
as far as render times go I get the Mikepan BMW finished in 46sec
Windows 8.1 64bit
AMD HD7970 6gb
Oct 26 2014
This sounds like the same as just hitting R to add a loop cut.
Oct 5 2014
I don't get one from blender.
it compiles and try's to render, but at about 1/3 it locks up and windows gives me a display Driver stopped responding and has recovered, but blender locks up and all you can do is shut it down inside Task Manager.
I am just adding this as it does not look correct in the description above.
//#ifdef __KERNEL_OPENCL_AMD__ //#define __CL_NO_FLOAT3__ //#endif
I should have stated to pick Opencl as rendering device and GPU before rendering.
Jul 2 2014
I have been following the GSoC projects, they all look to be great additions to Blender.
Hope to see some much needed speedup.
Thanks for the quick response.
I did post a .blend File in one of my replies.
I did retest and found the only improvement is in object mode.
I don't know what I had going on the first time but.
if you take the Sculpt-Test.blend file above and follow the same steps I posted in my first report. you should fined that Object mode is smoother with a simple deform modifier added after multires.
Jun 20 2014
Ok so after testing with a new blend file the only real speedup is in Object mode.
I must have had something on or changed in my last file.
But it still gives me a much smoother Object mode.
I did get Screen cast to work so I will make a video and post a link.
I have been trying to make a screen cast of this but I apparently am doing something wrong with it.
I know it tells you it is not supported but it still works.
I will try to fined a good way of proving this and post it.
Jun 19 2014
Yes sergey that is what I am getting at.
without the simple deform object mode and sculpt get bogged down around 6mil faces
with simple deform Object mode is smooth till about 80mil and sculpt till 100mil.
Jun 18 2014
here is a Blend File of my start up with the modifiers setup.
yes I have VBO's turned on with that test.
Just to confirm
I run Windows 8.1 Blender Does Work.
Try installing Microsoft redistributable MSVC 2010 if it is not installed.
Jun 2 2014
The Opencl Compile will work if you make the Kernel.types.h file look like this under Kernel_Opencl_AMD
the render is fast but it takes a long time to build the Kernel.
memory usage tops out at 3.3gb if I watch task manager when cycles is compiling.
and the kernel takes 154.46sec to compile.
the pic is a re-render after the kernel was compiled to get a time on just the render.
this is at 50 samples.
Sorry it took so long to Reply but builder.blender.org did not have a new windows 64 build till today.
your fixes worked for compiling for my Opencl GPU if you don't uncomment anything in the Kernel.types.h file.
May 28 2014
here is what I get with Blender 2.70a.
"C:\Users\JAXOM_~1\AppData\Local\Temp\OCL3936T5.cl", line 43727: error:
expected a declaration } ^
how do I get a copy of the log from console?
I have been Trying to fined ways to help with this for some time.
I have spent countless hours trying to get AMDs CODE XL to debug where they are having problems, but I have not had a lot of luck. I will try again now that the kernel compiles.
that is why I posted this
it works... with Blender 2.70a all options enabled in Kernel_Types.h for AMD_Opencl
New AMD Driver 14.6 ver 1
It feels a little Curt.
and the fact that the end basically to me seem as if you don't care it works or not.
well I hope someday I can use my video card for rendering.
Mar 28 2014
That is completely understandable sergey. Still Thank you all for looking at it though.
Mar 23 2014
I will look into it, This is fun
I like taking things apart and trying to fix them I may just have to pick up a book on Opencl after i have finished with learning c#
If I can be of any help let me know.
I would be glad to do so as to fix AMD OpenCL would at the same time help me out in render speeds.
I have CodeXLs
Profile, Debug and Analyzer working part of the way.
I can't get it to take me into the source code to see what the error is directly. I will keep working on that and see if I can fined a way to get it to work.
Mar 22 2014
Ok here is some more info I got from doing a profile
GPU Application trace
I am probably not of any help, but I installed the AMD APP SDK 2.9 and now I can run the Analyze mode on the Kernel.CL File and output the IL and ISA Code. would this be of any help?
I would love to help test on AMD OpenCL stuff if I can I am not a programmer But I do have a good Grasp of Computers and I am learning C# I know that is not OpenCL but I am getting used to looking at code.
Just tested 2.70 and 2.69 OpenCL Render of Tahiti selected in User prefs and supported GPU Render in render settings
Times are as follows
as of AMD Diver 13.12 AMD Rendering on HD7900 cards and newer works with most options enabled