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228 Messages

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5K Points

Tue, Mar 31, 2015 12:09 PM

1

Photoshop: simple gradient blur

there is no easy way to make gradual blur in photoshop.
Tilt - Shift is far too slow and sluggish for this task and also has too many controls for such a simple task. i'm trying to use it, but my images are mostly 10000x10000px, so Tilt-Shift is extremely slow or even crashes on regular basis. Lens blur is also very slow and doesn't work with smart objects.

is there a chance to have just a simple gradient blur? just draw a direction path and adjust the start and end point values?

something like the new Path Blur.

thanks!

Responses

15.1K Messages

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195.8K Points

6 years ago

That is a simple gradient blur. Most of the crashes we've seen in it are due to bugs in video card drivers. And unfortunately doing such a blur correctly is a slow process, but can be sped up with a fast GPU.

The only thing simpler would be blurring a layer and using a layer mask with a gradient in it.

228 Messages

 • 

5K Points

6 years ago

hi chris,

thanks!

still, before it crashes Tilt-Shift is very slow with 8000x8000px files and i'm working on the lates macpro (32gb AMD fire pro D500). i can't imagine that you are developing Photoshop for much powerful workstations, considering too that maybe most of your clients are working on much slower machines.

i'm talking more about a simple equivalent to Gaussian Blur (wich btw. works perfectly and fast even with much bigger files) just with the added ability to adjust two points with different blur strength.

thanks for the suggestion with the mask, but this is not giving usable results.

best
mladen

15.1K Messages

 • 

195.8K Points

That sounds like you probably have a driver issue, most likely in the OpenCL code. You can try disabling OpenCL in Photoshop's GPU settings, then relaunch and try the filter again. Also, it would be helpful to get the crash details (faulting module, etc.) for one of those crashes.

Yes, we develop code for high and low end machines, and test a pretty wide variety of video cards. Tilt-Shift and the other Blur Gallery blurs were tested extensively on larger images, and low and high end GPUs.

I think Field Blur with a second point is closer to what you want UI-wise: move one point to start or stop, place second point at the other end, adjust blur size on both to taste.

And the Blur Gallery filters are all working on Smart Objects when I try them in Photoshop CC 2014.

228 Messages

 • 

5K Points

6 years ago

and i don't mind the tilt-shift filter.
its very good for people willing to achieve quickly tilt and shift effect.
although it's not exactly the real tilt-shift experience.

there should be an easier, faster tool to achieve just a simple gradient blur.
draw a path, adjust the starting point > adjust the end point and that's it.
everything along the path is blurred gradually.

thanks!