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Rendering black
Help!
I’m trying to render out a 2048 x 1152 project (double project size to allow for a zoom in) on a quad core PC with a ATI HD 4800 (1024mb memory) Windows 7When I try to render I get the following errors:
could not find acceptable pixel format
Can’t create opengl context
Error allocating ouput color DC
Pi then renders the project as a series of black frames. I am really stuck here. Any suggestions gratefully received!!!!
Huge Regards
Dave -
24 Replies
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Open pIRender manually, click the “Options” button, then uncheck “use hardware acceleration”.
This is a workaround, and I’ll be releasing an update that fixes this any other issues in the next week or so.
Alan.
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Hi Alan:
That doesn’t help I’m afraid. I don’t get the warnings but I still get the 300 frame project rendered as black (plus a couple of green frames thrown in for good measure)
Do you have any other ideas. I need to have this done and to the client this week 🙁Huge Regards
Dave -
For your information – I don’t know if this is relevant but the particle shape is my own full colour png (64×64 with alpha)
Huge Regards
Dave -
When pIRender is running, is there a line at the bottom of the dialog that says “software rendering” — in red text I think? If not, then you didn’t actually turn it off.
If it definitely is using software rendering and you’re still getting black frames, then as a test:
1) in particleIllusion, zoom the stage to fit the window
2) when you render, click “no” on the “set the zoom to 100%” question
3) it will render in particleIllusion. Is the output you get here what you expect?Alan.
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Hi Alan:
In Pi render there is a line at the bottom of the box that says using software rendering. it isn’t in red though. ‘Use openGL hardware’ is not checked in the settings panel.Not zooming seems to render fine but obviously at the wrong size.
Huge Regards
Dave -
Sorry — it’s red text on the Mac version. What version is pIRender? (click the “?” buttom in the bottom right corner).
Alan.
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Version 3.0.7 30 Dec 2008
Huge Regards
Dave -
Strange. Ok, if there is any background footage in the project, remove it from each layer and try again and see if the problem persists.
If it does, zip the project file (ip3) and send it to me at support at wondertouch dot com.
You could also try turning off motion blur, or switching from HQ to regular blur, or try with not saving alpha, or some combo of those. Those are the first things I’ll try anyway with your project if I see the same results you do.
Alan.
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Hi Alan:
No Motion blur. No Bg and I have tried without alpha all with the same effect. Meh
I’ll zip and upload and maybe try a smaller version and hope we can sort this.Huge Regards
Dave -
I am experiencing the same issues all of a sudden. My first assumption was that it may have to do with the new ATI drivers. They boogered up a lot of other software as well as plug-ins (Magic Bullet Quick Looks for example) – We got those working again by reverting back a few versions of the stupid video drivers, but that in itself is not a clean solution. So, what now? Red Giant released some new versions (patches) to handle the new driver pretty quickly. I don’t know what the heck ATI is doing at this point. Looking deeper – I reverted the driver back again for testing PI (rollback) – but it made no difference. However, if I use PIRender standalone and render uncompressed AVI (so that I can get an alpha channel) – it works. This is totally weird. I guess for now it just will be a two step process. I will keep experimenting and if I find a real good solution, I will certainly share it. – Just for some specs: software rendering only (using an ATI Radeon 4800 on Win7 64 bit 6GB ram) – follow up – I did move back to the latest driver – and it does work as the two step process – hence, it most likely is not a video driver issue. But rendering from within PI is simply no longer working. 🙁 – The only thing I can think of now is that the codecs have somehow been modified or updated.
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