topic Re: Decals suddenly not showing in rendering mode in Fusion Design, Validate & Document Forum

Decals suddenly not showing in rendering mode

jwrockstarr0 — Mon, 02 Mar 2020 19:49:31 GMT

I created a glass bottle with two decals. I made several good renderings but when I came back the next day the decals would disappear whenever I hit the in-canvas render button. I tried closing out and restarting everything. I tried deleting and reapplying the decals. I tried going back in the timeline and reapplying with no luck...

Re: Decals suddenly not showing in rendering mode

Phil.E — Mon, 02 Mar 2020 22:30:28 GMT

I'm not seeing the issue with the design you posted. Try opening it and rendering it like I just did.

Not sure what would cause any trouble like this. Did you end up restarting your computer at any point?

Re: Decals suddenly not showing in rendering mode

ralliartswe — Mon, 02 Mar 2020 22:45:41 GMT

Hello,

I've had this happen to me too a while back. I did some testing with your design, and found two workarounds.

The first is to do a proper render, in the cloud, instead of the in-canvas. Be sure to select cloudrender in the render settings, because if I picked local renderer there, the decal was still hidden.

The second is to derive your design into a new one. When I did this the in-canvas worked in the new design, properly showing the decals.

It would be nice if any Autodesk people would mark this as a bug. Does sure seems like it.

Best regards,

Erik Karlsson

Re: Decals suddenly not showing in rendering mode

Phil.E — Mon, 02 Mar 2020 23:12:11 GMT

@ralliartswe Did the problem go away on it's own? Or do you still see it in testing the bottle model posted here?

I would love to log this as a bug. Here's the problem: I can't do this without being able to repeat it. No repeat, no report. It would be irresponsible to take a developer's time if the problem is almost impossible to repeat or only affects 2 out of many thousands of customers.

That being said, we can narrow down the myriad of variables that allow me to attempt reproducing it. Anyone reading this who has seen this problem, please chime in with answers and comments. I'm curious if you found a workaround or if it simply stopped.

Let's start here:

What OS do both of you use? Mac or Windows?

Re: Decals suddenly not showing in rendering mode

jwrockstarr0 — Mon, 02 Mar 2020 23:31:11 GMT

Hi Erik, I'm not sure what you mean when you say "derive"

Jay

Re: Decals suddenly not showing in rendering mode

ralliartswe — Mon, 02 Mar 2020 23:47:56 GMT

Hi Phil!

Thanks for helping us!

I'll post a screenshot of my specs here:

Also use a Geforce 970 GTX 4GB.

I caught the problem on screencapture here:

However, my derive-trick didn't work this time. But the cloudrendering shows the decals. I've opened the F3D file a couple of times now, and sometimes the in-canvas rendering show the decals all of a sudden, and sometimes they won't show at all, no matter what you do.

Edit:

@jwrockstarr0 Its a command in SOLID/create menu. You can see me using it in my video.

Best regards,

Erik Karlsson

Re: Decals suddenly not showing in rendering mode

jwrockstarr0 — Fri, 06 Mar 2020 16:52:28 GMT

I fixed the problem by finding a loose end in the bottle sketch. Now it renders using in-canvas mode.

But now I can't seem to get the rendering look of a beer bottle with a luminous glow, like sitting on a light table as shown the attached commercial image. I've tried placing various emissive objects but without much luck.

oh well, I guess that's for another forum.

Re: Decals suddenly not showing in rendering mode

Phil.E — Fri, 06 Mar 2020 18:15:26 GMT

They look pretty good in the sun. I find the best results in Fusion rendering from using the right lighting environment.

Here is a comparison between the image you provided and a rendering of your bottle. Maybe try reducing the exposure to 12-13 or increasing brightness, using the desert lighting. The image below is with default camera settings..

(logo omitted)

Re: Decals suddenly not showing in rendering mode

pwsculpture — Mon, 28 Jun 2021 16:01:25 GMT

One thing I noticed was that, although you can place a decal on a surface and it will appear in the render preview, it will not render. Decals must be on bodies to render.

Re: Decals suddenly not showing in rendering mode

david.zacher — Tue, 09 Aug 2022 23:31:11 GMT

I very often have this problem - in canvas renderings often have decals missing, or bodies are visible that shouldn't be visible, or bodies that should be visible aren't. Usually a real render will fix this but sometimes even that is incorrect. Sometimes restarting fusion helps limit this problem but its a chronic part of my work flow (or lack of flow).

Re: Decals suddenly not showing in rendering mode

david.zacher — Thu, 25 May 2023 17:35:25 GMT

I often have this problem: decals, parts, elements of a rendering setup don't show up in the final render, or go missing in the in-canvas rendering, but show up in the final render (this one is a real pain when trying to light a scene). It seems really random so not very easy to replicate but it happens fairly often so there is a bug somewhere.

Re: Decals suddenly not showing in rendering mode

Phil.E — Fri, 26 May 2023 17:52:24 GMT

Can you please check the Graphics Diagnostic, on the Help menu?

Also, can you share a file where you see this happening?

Re: Decals suddenly not showing in rendering mode

silverlakefab — Sun, 01 Dec 2024 12:06:53 GMT

This fails constantly for me as well. Here's an example of this exact problem. This has been going on for years now. Please actually fix this bug.

Here's the file link for this example:

https://a360.co/3CVZAXF

Re: Decals suddenly not showing in rendering mode

Phil.E — Tue, 03 Dec 2024 20:15:21 GMT

Thanks for providing the file.

The body is a surface body, and if it was a solid body the rendering doesn't fail.

After thickening the body to 1mm thick

Normally decals will render on surface bodies, so this is a bug. Bug report number: FUS-180064

Re: Decals suddenly not showing in rendering mode

Phil.E — Mon, 04 Aug 2025 15:37:11 GMT

The body has reversed normals.

The negative side of the surface usually displays in gold and will not accept decals or appearances. There is a preference that turns of the surface normal display, so it's kind of hard to determine if the model is inside out or not when this preference is ON.

To solve the issue quickly, just reverse the body normal direction.