Instant Meshes (Convert your high poly mesh into a low poly mesh)

DoctorClot

https://youtu.be/U6wtw6W4x3I

Hey everyone stumbled across this super useful tool today. It is speeding up my work flow with high poly meshes allot.

TL;DR of the video - Put highpoly mesh in. Low Poly mesh comes out after a few calculations.
Also worth noting that you may need to do some very very minor clean up after the retopo.

You can find the official site and the github repo below with the binary Builds and Source code.
https://github.com/wjakob/instant-meshes
http://igl.ethz.ch/projects/instant-meshes/

Did I mention that it is free?

Enjoy
- DoctorClot

armagon

Amazing!

kurt_hectic

Very interesting. Thanks for posting.

Anyone have time to compare it with remesher from zbrush?

Bal

After a quick test the results don't seem so different from Remesher, but maybe a bit faster and more interactive.
Some areas that felt like they should have been simple have given me some weird results despite adding guides, and I've had holes appear in the mesh in some areas.

Pretty cool app anyways, not sure if it's so useful yet compared to what's already available. But it's free, so that's a big plus!

Stromberg90

@Bal Yeah, I had the same experience as well and a lot of wholes in my output mesh.
It seems like a good free alternative to auto-retop/zremesher.

Eagleshadow

I did some quick testing with some of our photoscans, and here are the test results:
http://puu.sh/lrcps/d252617a13.png
http://puu.sh/lrdgA/dca85f4d7f.png
As can be seen, IM is superior in preserving detail (especially hard edge detail and form!) and handling messy situations, while ZR is superior in having the ability to be adaptive, rather than uniform. Problem with ZR that IM solves quite well, is that silhouette gets "melted down". As of now, IM is usable on some of our photoscans (second example) where ZR results were unusable due to loosing to much form to "melting". We can get around the uniformity by decimating planar areas only, or manually combining two IM results at different levels of detail.

oglu

did someone a organic shape..?
im not able to get something useable...

Bodio

Hello,
I have a problem with the "save", when I try to save in .obj, the obj never finish to save. If i wait 10min, the obj file is still saving and is about 2Go+.
Did I fail something with the installation?
My high poly is about 50k poly and the low is about 2k.
I am using win7.
I tried with other props and it seems to work. Strange !

PS : fixed, I export the mesh in 3dsmax before exporting to instant meshes and now it works.

JedTheKrampus

I've found that I get the best results when the input mesh is made of only triangles with a roughly uniform size.

oglu

the  input mesh is made of triangles... the one on the left is the auto retopo in mud...

JedTheKrampus

You also probably need to bump up the number of smoothing iterations. Try 2 and see if it helps.

peanut™

Thanks for this share. Im bookmarking for later.

oglu

JedTheKrampus said:

You also probably need to bump up the number of smoothing iterations. Try 2 and see if it helps.

thanks thats better now... but without symmetry or density painting its not useable for me...

stoobz

Hey guys,

I wanted to do a test with a point cloud. It looks like the .aln format supported is a point cloud format, but I never came across it and didn´t find any hint, how to convert to .aln.

I have some sample cloud files of a laser scan and they are .rcc / .rcs formats. Is there any way to load these into instant meshes?

Or maybe any idea, how to convert them into . aln?

many thanks in advance for any help!!

Eric Chadwick

Have you tried Meshlab? Some details here about loading point clouds into Instant Meshes
https://github.com/wjakob/instant-meshes/issues/7