Camera Lens Blur Highlight Gain Affects Whole Image

New Here ,
Jun 05, 2022 Jun 05, 2022

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Hello

 

When using the Camera Lens Blur effect, if you adjust the Highlight Gain dial, it increases the highlight exposure of the whole image. Is there a way to have it just affect the area that is being blurred, i.e. the part driven by the depth map? My work around is to use the same depth map layer to matte out the non-blurred area, but this affects quality of the effect. 

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FAQ , How to , Performance

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Adobe Community Professional ,
Jun 05, 2022 Jun 05, 2022

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Without any screenshots of your matte, the result comp and your settings we can't tell you much. This simply sounds like you have a problem somewhere liek the depth map having not enough contrast or empty areas or similar.

 

Mylenium

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New Here ,
Jun 05, 2022 Jun 05, 2022

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Thanks for your response. 

 

I can confirm that the black areas of the depth map definitely have an RGB value of 0,  so contrast/empty area not the issue. I've attached a simple example to illustrate the problem: 

 

The plain image:

blank.png

The depth map:

map.png

 

The final image:

effect.png

 

Notice the blown out areas on the lights and the top of the head. 

 

Thanks again

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Adobe Community Professional ,
Jun 06, 2022 Jun 06, 2022

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That's not a valid depth map. You need to create proper greyscale gradients or else the algorithm cannot make sense of the actual depth ranging. Also just having a black composition background does not equate actual pixels. Technically, your map is "empty" and thus invalid. So there you have it. You need to fix your blur map.

 

Mylenium

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New Here ,
Jun 06, 2022 Jun 06, 2022

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Thanks again for your response.

 

It's happening with every depth map, regardless of format, bit-depth, range of greyscale etc. Just wanted to show a stark example so the problem was clear.

 

Again, the blur is correct and where it should be, as you can see, but the highlight is not. 

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