Exporting displace on multiple textures leads non consistent values

[Frankie]

Version 3.3.12 CUDA DX64

Win 7

Per-Pixel painting room

When exporting displace maps in a multiple-texture project (not normalized, zero is black), the depth factor is inconsistent over the various textures. Moreover, one of the factor has an insane value:

The other factors range between 2 and 6

The insane displacement probably happened when smoothing depth across texture boundaries. It happenned that sometimes when smoothing dark spots appear (probably due to a spike in the depth). I did my best to remove those by hand but there are some left apparently.

Now the thing is with such an insane scaling factor, it is impossible to correct and conform the values in photoshop.

What needs to be done is 1. conform factors of all depth textures during export (using a common scaling denominator for all textures) and 2. have an option to clamp (limit) displacement in both directions in case of spikes like this.

Franck.

[Andrew Shpagin]

I think function like "Clamp displacement" should solve problem.

I will do it in next build I hope.

[Frankie]

I think function like "Clamp displacement" should solve problem.

I will do it in next build I hope.

Wonderful, many thanks.

[mill]

Hello.

I experienced a problem with displacement export.

It is the similar symptom to the one in this thread.

BUILD: I am using 3.5.05B cuda but 3.5.00 also has the same problem.

OS: windowsXP x64 sp2

HARDWARE: HP Z800, Quadro FX4800

BUG DESCRIPTION:

STEPS TO REPRODUCE:

This object below has multiple UV sets.

After I sculpted this in the per pixel paint mode, I exported displacement maps by Textures > export > displacement map of visible layers > Grey based not normalized.

But the generated maps have seams.

So, I imported them back to the original object as diffuse maps to see what is happening.

It seems that 'not normalized' is not working.

Because both maps generated with 'Grey based not normalized' and 'zero level is Grey' gives me exactly the same result.

Is there a way to solve this problem with v3.5?

[Andrew Shpagin]

The reason is that you exported it as 16 bit (TIF). In this case NOT NORMALIZED can't work. It works only for 32 bit export.

So choose TIFF or EXR as export format.

[mill]

Thank you very much.

I will try as soon as I get to my office.

[mill]

It works perfectly.

This help us a lot.

Thank you.