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Scene Capture with Post Process Mat works only with capture every frame

A Scene Capture component that uses a Post Process material ignores that material when Capture Every Frame is set false

Product Version: UE 4.18
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asked Nov 09 '17 at 06:46 PM in Bug Reports

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avatar image Jon X ♦♦ STAFF Nov 14 '17 at 07:13 PM

Hi Davision,

I'll need more information to help with this issue. What specifically are you trying to do? Can you provide some more specific steps to reproduce the unexpected behavior, and also explain what you are expecting to happen? Also, screen shots of how you have your SceneCapture as well as your material set up would be helpful.

avatar image Davision Nov 18 '17 at 02:09 PM

I just expect it to render with the post process material like it does when Capture Every Frame is set True. So the steps are: make a Scene Capture setup and set Capture Every Frame false, make any post process material and put it in the scene capture component. See that post process material is not rendered. (This was done in editor)

avatar image Jon X ♦♦ STAFF Nov 21 '17 at 03:42 PM

Here's what I get when I set up a basic Scene Capture with PP material, Capture Every Frame set to False. alt text As you can see, the mesh in the background is rendering the PP material. Like I said, we'll need a lot more information to dig any deeper into this.

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3 answers: sort voted first

Have you tried checking the "Always persist Rendering State" option? I think I had a similar problem and this fixed it for me.

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answered Nov 09 '17 at 09:08 PM

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avatar image Davision Nov 13 '17 at 10:54 PM

With that I got another bug where it did not render everything. I just let it capture every frame now, for what I'm currently doing with that it is no problem. Would still be nice to get this fixed at some point.

avatar image LeFxGuy Nov 14 '17 at 08:13 AM

What bug did you get with that option enabled?

avatar image Davision Nov 18 '17 at 02:11 PM

The bug is that it did not render everything. I'm having a top down orthographic setup with foliage on terrain. Most of the foliage is then not rendered.

avatar image LeFxGuy Nov 18 '17 at 03:19 PM

Well, just asking because your original post is related to PostProcessing not being included but for me, using the "Always persist rendering state" option fixes that. Thus I wanted to know, also pls write here if you have solved it or post detailed reproduction steps. because now you are with orthographic setup and foliage etc. This is not included in your original post and could be a whole new bug in itself?

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We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue and you have some more information to provide, please respond to this message with a sample project that showcases the issue so that we can investigate further.

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answered Nov 29 '17 at 09:28 PM

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Jon X ♦♦ STAFF
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Had the exact same issue and Always Persist Rendering State set to true fixed it.

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answered Mar 29 '18 at 11:48 PM

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