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1. Re: Perspective Warp Option greyed out
Jeff Arola Jan 16, 2014 1:17 AM (in response to daniellieske)5 people found this helpfulI had the same problem on my mac, so i looked at the Advanced Settings under Use Graphics Processor
and had to enable Use Graphics Processor to Accelerate Computation and then Perspective Warp worked.
Restart photoshop after changing those settings.
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2. Re: Perspective Warp Option greyed out
daniellieske Jan 16, 2014 1:24 AM (in response to Jeff Arola)Thanks man! That worked perfectly.
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3. Re: Perspective Warp Option greyed out
Julie McLeod Jan 16, 2014 5:58 AM (in response to Jeff Arola)Enabling Use Graphics Processor to Accelerate Computation didn't work for me. I'm wondering if Perspective Warp is a feature that requires a higher spec graphics card. I haven't seen any reference to that in any of the release info for 14.2. (My graphics card has only 256 gb onboard ram)
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4. Re: Perspective Warp Option greyed out
Jeff Arola Jan 16, 2014 11:02 AM (in response to Julie McLeod)Yes, i believe you need to have at least 512 mb of vram for all the advanced gpu features like perspective warp to work.
Actually 512 mb of vram has always been the minimium requirement for photoshop cc, although some of the gpu features still work with only 256.
more info:
https://helpx.adobe.com/photoshop/using/perspective-warp.html
https://helpx.adobe.com/photoshop/kb/photoshop-cs6-gpu-faq1.html
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5. Re: Perspective Warp Option greyed out
Julie McLeod Jan 16, 2014 11:18 AM (in response to Jeff Arola)Actually, it turned out the problem I was having related to the image mode. Evidently, Perspective Warp only works on 8-bit images and the menu option is grayed out for 16-bit images. Once I changed the images to 8-bit, Perspective Warp works fine.
Thanks for the input.
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6. Re: Perspective Warp Option greyed out
Julie McLeod Jan 17, 2014 6:28 AM (in response to Julie McLeod)As a follow-up to this discussion, I was contacted yesterday by one of the PS engineers. He confirmed that with my system's 256 mb vram, Perspective Warp will be disabled when working on images in 16/32-bit mode and enabled for images in 8-bit mode. Users with the recommended 512 mb of vram will be able to use Perspective Warp on 16/32-bit images.
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7. Re: Perspective Warp Option greyed out
Claudia McCue Jan 22, 2014 6:52 PM (in response to Julie McLeod)I have an NVIDIA GeForce GT 120 card with 1GB RAM in my MacPro. I can check "Use Graphics Processor," but when I click Advanced Settings, both "Use Graphics Processor to Accelerate Computation" and "Use OpenCL" are grayed out.
Perspective Warp is grayed out even with 8-bit images.
Am I right in assuming that this card simply won't support Perspective Warp because it doesn't support OpenCL?
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8. Re: Perspective Warp Option greyed out
Chris CoxJan 22, 2014 8:03 PM (in response to Claudia McCue)
GT120's got blacklisted for perspective warp due to bugs in that graphics card.
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9. Re: Perspective Warp Option greyed out
RFKN Mar 13, 2014 9:39 AM (in response to Chris Cox)Hi have a Toshiba Windows7 with Intel HD Graphics Card and under the Advanced Settings both "Use Graphics Process to Accelerate Computation" and "Use OpenCL" are greyed out. Does this graphics card support Perspective Warp?
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10. Re: Perspective Warp Option greyed out
encarta Nov 2, 2014 4:19 AM (in response to daniellieske)I was only just using it yesterday for the same image types using the exact same laptop, etc. and now today it's greyed out.
In relation to other peoples posts about the graphic processing, I'm wondering if it's because yesterday I had my laptop plugged into mains, and right now it's not (my settings change CPU usage, etc. when running only off battery).
I just tried plugging it back in, but to no avail; restarting PS while plugged in - ditto; then looked back in my preferences and found some of the graphics settings switched off - maybe it turns them off automatically when starting PS whilst unplugged?
Switched them back on, restarted PS and everything's fine again. -
11. Re: Perspective Warp Option greyed out
rachelsing Jun 10, 2015 5:35 PM (in response to daniellieske)2 people found this helpfulSomeone just gave me another solution that worked. Turn the layer into a smart object. (I tried that and it didn't work.) Then turn the smart object into a smart object. That worked for me.
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12. Re: Perspective Warp Option greyed out
RayStaar Jul 20, 2015 10:52 AM (in response to daniellieske)Yesterday, perspective warp was functioning. Today it isn't. I've tried every suggestion on this thread but nothing has worked. I'm running PS CC 2015 on a new Dell Inspiron. The OS is Windows 8.1. I've allocated 60% of vram to PS, the Graphics Processor box is checked and my graphics card is Intel HD Graphics 4400. Still nothing. Does anyone have any suggestions? Thanks.
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13. Re: Perspective Warp Option greyed out
doclico Jan 18, 2016 3:01 PM (in response to daniellieske)If you have any layers LINKED, the WARP option will be grayed out. It took me a long time to figure this out, b/c you can transform layers all the other ways if linked. Hope this helps someone!
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14. Re: Perspective Warp Option greyed out
photospark Jun 18, 2016 6:43 AM (in response to daniellieske)This worked a treat for me, thanks.
Photospark
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15. Re: Perspective Warp Option greyed out
susief18086447 Dec 7, 2016 7:06 AM (in response to rachelsing)None of the other solutions worked for me even with more than enough VRAM and settings checked, 8 bit image... but doing the smart object twice WORKED!!! Thank you!!! This is has to be a bug in Photoshop.
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16. Re: Perspective Warp Option greyed out
photoron123 Nov 16, 2017 12:25 PM (in response to Jeff Arola)Hi, thanks for the input. However, where do I find Advance Settings?
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17. Re: Perspective Warp Option greyed out
Trevor.Dennis Nov 16, 2017 12:38 PM (in response to photoron123)1 person found this helpful -
18. Re: Perspective Warp Option greyed out
sherry99 Mar 7, 2018 6:34 AM (in response to Trevor.Dennis)YAAAAAAAASSSSS THANK YOU SO MUCH