3ds Max unwrapping: how to know texel density?

christopheduron

Hello,

Just a small question about 3dsmax. I've just unwrapped several meshes that together form a gasmask helmet. I then applied a uv unwrap modifier to all meshes at the same time so i can put them all in the same 0-1 uv space without overlapping.

An option to quickly get all of the meshes to more or less the same texel density is to click 'pack together' so all islands are jammed into the texture space with more or less the same texel density. However i don't want to do this since it moves around the unwraps i did so far, so i'd have to rearange them all over again.

What i normally do is turn on the checked patern and scale the uvs until all the squares are more or less the same size. It's fairly hard to do this right now since some of the meshes are smaller than the checked pattern's squares would have to be.

So basically i want to know if it's possible somehow in 3dsmax to select a uv island and know the average texel density of that island. Or something similar to fix my problem.

Thanks for your time!

musashidan

Button beside the packing tools called ' rescale elements' is what you're after. 

christopheduron

Oh... never tried this button before. Thanks, this is indeed what i was after!

huffer

You can also use Advanced UV Normalizer (version 1, which was free) from polytools.

christopheduron

Is that a plugin then?

christopheduron

I was just unwrapping a pistol i'm making and i came across a similar problem. When pressing the 'pack normalize' button what would normally happen is that everything get scaled to more or less the same texel density ratio. As you can see now, it doesn't even come close to that (i scaled everything together afterwards to it's easier to see). Even when i press 'rescale elements' nothing changes. Any ideas why this is happening? Or a does someone have a good method of getting all these texel density ratios to the same value?



Thanks for your time!

Obscura

Try applying reset xform on the mesh.

christopheduron

I did, thought about it aswel but it didn't help. Even tried restarting 3dsmax afterwards. Weird stuff man

Obscura

Is it one mesh, or multiple meshes?

christopheduron

multiple

I've worked with mutliple before though i'm sure, and i can't remember having this issue before. I had it once, but all i had to do was reset the Xform and it was fixed i believe. 

Obscura

Try attaching them

christopheduron

Yup, that does the trick! Thanks for the assist

gandhics

In 2017, you don't need to attach.

christopheduron

cool

jaker3278

In 2017 you dont need to attach that is good news. Is there a way to apply smoothing groups to UV islands without attaching?  i use textools normally and you have to attach and then do it. 

christopheduron

on the subject of textools. There's an option where it translates smoothing groups from your model to uv islands that are quick peeled or something. Whenever i use this option lately it brings my 3dsmax in a state where it keeps loading forever and eventually i have to use task manager to shut it down. Sometimes it works, but usually it doesn't. Is this a common problem for anyone? ^^