Maniphest T67891

Problem with normal maps in Cycles
Closed, Duplicate

Assigned To
None
Authored By
Eugenio Pignataro (oscurart)
Jul 29 2019, 6:40 PM
Tags
  • BF Blender
Subscribers
Eugenio Pignataro (oscurart)
Nahuel Belich (belich)
Sybren A. Stüvel (sybren)

Description

Ubuntu and windows.

Blender 2.79 and 2.8

FILE: http://pasteall.org/blend/index.php?id=52111

Work in lookdev and EEVEE, not in cycles.

Only run rendered, and see the result. It's like a "margin" effect...
Switch to lookdev and see the difference :)

It's a bug or a limitation?

THANKS

Related Objects

Mentioned Here
rB03f652b2c1fc: FIx T66019: Text cutoffs for descriptions in keyframe insertion (keyingsets).

Event Timeline

Eugenio Pignataro (oscurart) created this task.Jul 29 2019, 6:40 PM
Nahuel Belich (belich) added a subscriber: Nahuel Belich (belich).Jul 30 2019, 1:24 AM
Sybren A. Stüvel (sybren) lowered the priority of this task from 90 to 30.Jul 31 2019, 1:01 PM
Sybren A. Stüvel (sybren) added a subscriber: Sybren A. Stüvel (sybren).

Please follow our submission template and guidelines and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.

A guideline for making a good bug report can be found here: https://wiki.blender.org/wiki/Process/Bug_Reports

Marking as "Incomplete" until the requested information/data is provided.

Eugenio Pignataro (oscurart) added a comment.Jul 31 2019, 1:36 PM

Hi sybren!

I sent you the .blend.
I sent you the step by step, and the print screen.

The problem is really simple, artifacts when use normal maps.
It makes no sense to make a more extensive post, because the problem is really simple.

You can see that the normal map creates bands on the edges.
This does not happen in eevee.

If you need specific information please tell me and I will give it to you.
In this case it seems to me a very obvious mistake.

Sybren A. Stüvel (sybren) added a comment.Jul 31 2019, 1:47 PM

You didn't follow the bug reporting template, and you didn't specify the exact Blender version you're using (2.8 doesn't exist, you probably mean 2.80 release, or any of its release candidates, or any of the many available daily builds).

It would be a lot clearer if we had a side-by-side comparison of what things look like in EEVEE vs. Cycles, and which one you think is correct. To me the screenshots you show look just fine.

Eugenio Pignataro (oscurart) added a comment.Jul 31 2019, 1:56 PM

This problem comes from version 2.79, to the present.

My version

bpy.app.version

(2, 80, 75)

I am now with Ubuntu, but I tried it on Windows machines.

Please tell me if you need something more!
THANKS

Eugenio Pignataro (oscurart) added a comment.EditedJul 31 2019, 2:04 PM

it works the same as EEVEE.

https://skfb.ly/6MtRX <<<<<<<<<< sketchfab link

Sybren A. Stüvel (sybren) raised the priority of this task from 30 to 80.Jul 31 2019, 2:23 PM

I can confirm the difference between Cycles and EEVEE with 2.80 Release and current master (03f652b2c1fc7de685185190ff95bdd240540388). I don't know whether this is by design or not -- they are two different renderers, and can do different things.

Eugenio Pignataro (oscurart) added a comment.Jul 31 2019, 2:30 PM

Exactly Sybren!

However, the result of cycles differs with all other render engines.
It may be the cycles way, but it is extremely visible.

THANKS FOR YOUR HELP.

Brecht Van Lommel (brecht) closed this task as a duplicate of T56209: Normal map node produces wrong result after reflection fix patch.Aug 1 2019, 6:59 PM