Jump to content
nuki

UV Flatten distorted plane

Recommended Posts

I am trying to generate nice, relaxed UVs for a distorted grid object. Ideally I would want to simply relax the initially generated UVs after distorting it but all the tools available seem to be focused on generating new UVs altogether. Having never done this kind of thing in Houdini I also struggle to understand how I could procedurally constraint eg. the outline of the grid to a square or all the points with @P.x==0 to a straight line.

uvproject.PNG

UVs pre distortion

uvflatten.PNG

UVLayout post distortion

mayaUV.PNG

Quickly generated UVs in maya to outline what I'm after

river_UV.hip

Edited by nuki

Share this post


Link to post
Share on other sites

Smoothing geometry may help a bit. It will leave UVs straightened and tileable and reduce interpolation zigzags. It will also help UV Flatten to output proper geometry without such big distortion.

Also you may try Delta Mush, it may simulate results you need. Swap UV with P, then apply DM on straightened UVs using UV Flatten output as a second input:

delta_mush_uv.png.67d72caa88cac49f80f73ca729b8faf8.png

delta_mush_uv.hipnc

  • Like 1

Share this post


Link to post
Share on other sites

thank you a lot, the delta mush method works great! Smoothing the mesh aggressively before flattening and then copy overthe uvs to the original seems to work fine as well.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×