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4.19p4 Foliage is black in editor

Hi

As shown in the screenshot, after upgrading a project from 4.18 to 4.19p4 the foliage (transparent materials?) are displayed/lit black in the editor, but are fine PIE. This happens in lit or unlit modes. Foliage has been completely OK in previous versions of the engine (4.18 and earlier).

Do I need to change a new setting somewhere?

Thanks

Gavin

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Product Version: UE 4.19 Preview
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asked Feb 08 '18 at 10:37 AM in Bug Reports

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Gavin1969
103 4 10 14

avatar image Jeff A ♦♦ STAFF Feb 12 '18 at 01:53 PM

Hello,

We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1410408-unreal-engine-bug-submission-form

Thanks

avatar image Gavin1969 Feb 12 '18 at 02:03 PM

Ah, I hadn't noticed that. Thanks will do.

avatar image Gavin1969 Feb 22 '18 at 10:58 AM

Just to say this is still happening in 4.19 preview 5. I've replied to email epic sent asking for repo steps, which can recreate the problem form a 4.18 upgraded to 4.19 project, but I've had no reply to indicate this issue is being investigated. Do I need to re-submit the issue as a bug?

To reproduce –

Create a FirstPerson based Template project in 4.18 Then import the Broadload_Desktop.srt speedtree model from the Free SpeedTree Samples for UT4 pack (from Speedtree.com) Add speedtree model to foliage system, and paint several models onto floor in FirstPersonExampleMap. Build lighting, all is still good. Close the project, and open the 4.19p4 editor. Open a copy of the 4.18 project, fixing any compiler errors along the way. Transparent leaves from Speedtree models are now black in the editor, but OK PIE. Rebuilding lighting in 4.19 after loading doesn’t fix the black on trees in editor.

Level was in Volumetric Lightmap mode, still happens if lighting rebuilt in sparse mode.

avatar image Inph1del Apr 09 '18 at 12:41 PM

I’m having issues with foliage using perinstance and world offset to set it up so flat planes always face the camera. In editor theybdisapear and are all black in game. Sometimes they disappear and there will be flickering fb which I assume is the offset no longer working.

https://answers.unrealengine.com/questions/775416/odd-flickering-in-viewport-419.html Is my ah post

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5 answers: sort voted first

Just to confirm this issue is now fixed in 4.19.2!

Fixed! UE-56272 Incorrect foliage color in editor preview when using PerInstanceRandom node

Thanks!

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answered May 02 '18 at 07:58 PM

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Gavin1969
103 4 10 14

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There will be a speed tree color node in the materials. Workaround it to bypass that node until its fixed. Looks like they tweaked some of the nodes for the new speedtree 8 modeler and broke backward compatibility. Looks like the wind is a little different too. I think I like the new wind better.

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answered Feb 23 '18 at 03:23 AM

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rdashkevicz
41 3 3

avatar image Gavin1969 Feb 25 '18 at 10:43 AM

Ah yes, it does appear the SpeedTreeColorVariation node is returning black when editing, but is OK when PIE, on an upgraded project. Odd that this node should behave differently in these use cases though, not sure what the logic of that could be.

avatar image Gavin1969 Mar 06 '18 at 10:23 PM

Just to confirm this is still happening in 4.19 preview 6.

I made Speedtree aware of the issue a couple of weeks ago.

No replies to my emails from Epic bug reporting.

Others are seeing the same problem, as reported on the Speedtree forum.

Really hope this will be fixed before the release version of 4.19, would love to be able to upgrade my project from 4.18.

avatar image looter Mar 15 '18 at 01:36 PM

Same issue here, in 4.19.0 release

avatar image Gavin1969 Apr 20 '18 at 01:43 PM

Yes, it's still happening in 4.19.1

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Try putting in a piece of foliage that appears to have this issue in editor then CTRL+Z. This should fix the issue in editor for the current session.

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answered Mar 18 '18 at 11:28 AM

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The Embraced One
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I think the problem comes from the perInstance node in the material editor.

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answered Mar 19 '18 at 08:05 PM

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bruno pierron
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avatar image Gavin1969 Apr 20 '18 at 01:44 PM

yes, that's been noted in my post on the Speedtree forum... Still no fix though...

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Hi as per this thread:

https://forums.unrealengine.com/development-discussion/content-creation/1451827-speedtrees-displaying-black

This problem was fixed for me by replacing the 'Normalize' node in the Speedtree Color Variation material function with 'SafeNormalize'.

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answered May 02 '18 at 01:27 PM

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Rob McLachlan
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