Problem with normal maps in Cycles #67891

New Issue

Eugenio Pignataro · 2019-07-29T18:40:41+02:00

Eugenio Pignataro commented

2019-07-29 18:40:41 +02:00

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

![Screenshot from 2019-07-29 13-32-05.png](https://archive.blender.org/developer/F7635985/Screenshot_from_2019-07-29_13-32-05.png) ![Screenshot from 2019-07-29 13-26-33.png](https://archive.blender.org/developer/F7635991/Screenshot_from_2019-07-29_13-26-33.png) 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

Eugenio Pignataro commented

2019-07-29 18:40:41 +02:00

Added subscriber: @EugenioPignataro

Nahuel Belich commented

2019-07-30 01:24:00 +02:00

Added subscriber: @NahuelBelich

Sybren A. Stüvel commented

2019-07-31 13:01:27 +02:00

Added subscriber: @dr.sybren

Sybren A. Stüvel commented

2019-07-31 13:01:27 +02:00

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.

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 commented

2019-07-31 13:36:24 +02:00

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.

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 commented

2019-07-31 13:47:37 +02:00

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.

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 commented

2019-07-31 13:56:23 +02:00

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

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 ![Screenshot from 2019-07-31 08-52-57.png](https://archive.blender.org/developer/F7639477/Screenshot_from_2019-07-31_08-52-57.png)

Eugenio Pignataro commented

2019-07-31 14:04:08 +02:00

it works the same as EEVEE.

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

it works the same as EEVEE. https://skfb.ly/6MtRX <<<<<<<<<< sketchfab link ![Screenshot from 2019-07-31 09-04-33.png](https://archive.blender.org/developer/F7639514/Screenshot_from_2019-07-31_09-04-33.png)

Sybren A. Stüvel commented

2019-07-31 14:23:07 +02:00

I can confirm the difference between Cycles and EEVEE with 2.80 Release and current master (03f652b2c1). I don't know whether this is by design or not -- they are two different renderers, and can do different things.

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 commented

2019-07-31 14:30:39 +02:00

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.

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 commented

2019-08-01 18:59:28 +02:00

Closed as duplicate of #56209

Brecht Van Lommel closed this issue

2019-08-01 18:59:28 +02:00

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Problem with normal maps in Cycles #67891