Author Topic: Strange Reflections in Metal Object  (Read 305 times)

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Offline jennieelectrix

Strange Reflections in Metal Object
« on: February 27, 2020, 01:06:14 am »
Hi,
I'm currently rendering a model set-up of some stainless steel products that we sell, and I'm getting these strange wavy reflections in the final render (attached).
The problem I have is that when I'm on KeyShot these reflections aren't appearing, they're only in the final render, and with the products being metal I don't want to fiddle around with the lighting (somewhat blindly) as it could potentially knock the reflections on the rest of the model.
Does anyone have any idea what it could be?
Thanks  :)

Offline RRIS

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Re: Strange Reflections in Metal Object
« Reply #1 on: February 27, 2020, 01:40:11 am »
In addition to that, if you look at the holes in the top surface, some of the cuts appear much darker than the others...

Do you have rounded edges enabled on this object? Any different results if you retriangulate the object?
« Last Edit: February 27, 2020, 01:42:18 am by RRIS »

Offline jennieelectrix

Re: Strange Reflections in Metal Object
« Reply #2 on: February 27, 2020, 01:59:31 am »
There isn't any round edges, and it's not just on that object - any object placed the same way is getting the same result.

The model is of cable tray so the holes are actually below the walls that are shown on the screenshot, so I don't see how it could be reflections from them.

Offline jhiker

Re: Strange Reflections in Metal Object
« Reply #3 on: February 28, 2020, 12:26:16 am »
Are they still there if you raise the tray off the ground plane a tad?

Offline INNEO_MWo

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Re: Strange Reflections in Metal Object
« Reply #4 on: February 28, 2020, 12:21:59 pm »
If you add a ground plane and activate the clip geometry option in the ground material, would it help?

Offline jennieelectrix

Re: Strange Reflections in Metal Object
« Reply #5 on: March 02, 2020, 12:41:19 am »
Are they still there if you raise the tray off the ground plane a tad?

They are, also because of the lighting set up, this also creates a shadow that makes it a bit more obvious that the tray is lifted off of the ground.




Offline jennieelectrix

Re: Strange Reflections in Metal Object
« Reply #6 on: March 02, 2020, 12:42:54 am »
If you add a ground plane and activate the clip geometry option in the ground material, would it help?

I'm currently trying this however adding the ground plane has massively increased the rendering time and has also thrown off the lighting a bit - I'm hoping it may work though so I can then adjust the ground plane material appropriately. My Keyshot skills are very basic so I imagine there is some obvious easy fix that I'm just not aware of.


EDIT: The render finished and this seems to have gotten rid of the strange reflection, so now just to fiddle with the lighting! Many thanks  :)
« Last Edit: March 02, 2020, 02:18:22 am by jennieelectrix »