Final Render showing mesh grid on object...not smooth

cgi_joie · April 28, 2023, 5:45am

Hi friends,

After setting up a final render Ice cube showing choppy grid.
Don’t know what I’m doing wrong, is it the material or the object faces!! Not able to figure it out!

I’m I missing something!

Please note:

These are Rigid body Objects
Shade Smooth is ON
No problem in face orientation
It is sculpted

Thanks in Advance!

Sworly · April 28, 2023, 7:01am

No modifiers change the mesh topology? Can you share a file?

Magnavis · April 28, 2023, 7:22am

Bump or displacement in the material settings can cause this - do you have any setup?

ArtPomelo · April 28, 2023, 8:11am

Its auto smooth probably.

cgi_joie · April 28, 2023, 8:22am

Hi @Magnavis

Yes, I think it is due to BUMP MAP.

When I remove BUMP node, the makes the surface smooth.

Attaching below the material setup.

Thanks for feedback!

cgi_joie · April 28, 2023, 8:24am

@Sworly

I think its a BUMP map I added with noise texture.

When I remove it, the problem resolves!

Below is the screenshot of material setup.

Thanks for feedback!

mp5gosu · April 28, 2023, 8:24am

You made a mistake. The shaders belong into the height port, not the normal port.
If you plug them into normal as you did, you’re modifying the shading normal in an uncontrollable way since theys aren’t really compatible out of the box (without going innto technical detail here)

cgi_joie · April 28, 2023, 8:30am

@mp5gosu

Yes! That worked liked a charm!

Thanks for figuring out!

cgi_joie · April 28, 2023, 8:45am

Problem resolved.

As suggested by @mp5gosu, I changed the shader connection to height port, which is earlier I attached to normal port, which is creating the problem.

Thanks all for helping out!