topic Re: Ground cutting off objects in render in Fusion Support Forum

Ground cutting off objects in render

royalcask — Mon, 19 Dec 2022 23:48:16 GMT

Why is the ground cutting off my objects when I render? In the render screen on the left it shows it right, I have the objects sitting on the plane in design mode, but when I render the ground is up covering my objects?

Re: Ground cutting off objects in render

sutherland- — Tue, 20 Dec 2022 07:19:47 GMT

Hi @royalcask

Please try to move the ground plane and see if it resolves the issue:

Re: Ground cutting off objects in render

P-BvanWyk — Tue, 20 Dec 2022 07:52:10 GMT

Good day @royalcask,

You can go to the scene settings, and under environment, you can change the position (Rotation and z-offset).

Re: Ground cutting off objects in render

royalcask — Tue, 20 Dec 2022 21:04:22 GMT

So adjusting that does adjust the ground…but do we really have to guess where to put it and hope it eventually gets in the right spot? The main windows preview and then the actual render are completely off. On another file I tried I pulled the ground completely over the object and it still wasn’t high enough to even start to see the ground…

Re: Ground cutting off objects in render

royalcask — Tue, 20 Dec 2022 21:06:49 GMT

So it’s a guessing game, and a “adjust the ground, hope the render is right, cancel the render, adjust the ground, pray the render is right, cancel the render” until you finally find the ground in the right place? That’s rough.

Re: Ground cutting off objects in render

jhackney1972 — Tue, 20 Dec 2022 21:29:15 GMT

You do not have to guess, if your design environment model in on the X-Y plane and you set the Ground Plane to 0 in the Render Environment, the rendering will place the model on the ground. Since it takes time to render the image, I did not do it in the video but simply attached the result in an image using the setting mentioned. I am using In-Canvas rendering.

(view in My Videos)

Re: Ground cutting off objects in render

royalcask — Tue, 20 Dec 2022 21:29:15 GMT

Here’s another file that as you can see, I’ve adjusted the ground to where it’s almost covering the objects…and the ground is nowhere in the render. Ground plans and reflection are both ticked. Tested on my MacBook Pro and Mac Studio and it’s the same issue one all computers.

Re: Ground cutting off objects in render

royalcask — Tue, 20 Dec 2022 21:32:51 GMT

Objects are positioned on the axis’ correctly. As you can see there is no ground in the render.

Re: Ground cutting off objects in render

jhackney1972 — Tue, 20 Dec 2022 21:49:43 GMT

I now see your confusion. The video will show you how to compensate for the ground plane position with accuracy. As I said, I have attached the result of a Local Render to prove it works.

(view in My Videos)

Re: Ground cutting off objects in render

rknightXW6MW — Tue, 20 Dec 2022 22:21:18 GMT

(view in My Videos)

Re: Ground cutting off objects in render

rknightXW6MW — Tue, 20 Dec 2022 22:34:45 GMT

Just realized I'm signed into my other account on this computer, so if the two user names are confusing...that's why. Lol.

Re: Ground cutting off objects in render

jhackney1972 — Wed, 21 Dec 2022 00:04:02 GMT

Please attach your model so I can attempt the Render. If you do not know how to attach your Fusion 360 model follow these easy steps. Open the model in Fusion 360, select the File menu, then Export and save as a F3D or F3Z file to your hard drive. Then use the Attachments section, of a forum post, to attach it.

Re: Ground cutting off objects in render

rknightXW6MW — Wed, 21 Dec 2022 00:46:56 GMT

Here you go!

Re: Ground cutting off objects in render

jhackney1972 — Wed, 21 Dec 2022 02:09:53 GMT

There is something about this model that brings my computer to its knees! I will have to play with it awhile and see if I can get it to respond better.

Re: Ground cutting off objects in render

rknightXW6MW — Wed, 21 Dec 2022 02:23:18 GMT

That's interesting, but I appreciate the help!

Re: Ground cutting off objects in render

rknightXW6MW — Wed, 21 Dec 2022 02:48:01 GMT

So, I have to raise the ground 75mm to have it in the right spot...how can this be fixed?

(view in My Videos)

Re: Ground cutting off objects in render

P-BvanWyk — Wed, 21 Dec 2022 06:17:10 GMT

@royalcask,

The XY plane in your design workspace is by default used as the ground plane for renderings.

And it looks like you have a ~2.1mm offset.

The "Re-Anchor" @jhackney1972 mentioned worked on my side.

For future assemblies, I would recommend that you design & ground your base component on the XY plane.

This should completely eliminate the need to adjust the ground plane in the rendering workspace.

Re: Ground cutting off objects in render

royalcask — Wed, 21 Dec 2022 07:24:56 GMT

That doesn’t work. It works for the quick render preview, but not when doing an actually full render.

To get the ground to show I had to ease it 75mm, with a ton of guess work and going back and forth. It’s 2mm off the ground as I like to have a slight gap on renders for these. That’s a personal preference. But at 2mm it should still show shadows and the ground.

Try a full tender and see how it turns out. For me I was unable to get it to render with the ground unless I lifted the ground 75mm up above the objects. Which obviously isn’t how it should be.

Re: Ground cutting off objects in render

P-BvanWyk — Wed, 21 Dec 2022 09:29:39 GMT

The reflections show up the same on my side, but no shadows on the render.