rendering aprox : welding kills saving mesh

[bziegler]

I was loking at that option more deeply.
I need a fixed mesh as i'll render animation with my objects with raytracing (Finalrender GI).
It is better for GI that topology doesn't change and that vertices to be welded.

So i've choosed the size depedent mesh. I've found the good settings that should fit my needs. But as i activate the "weld and smooth mesh", the "save render mesh" doesnt work anymore !

I've quite a complicated model. So it will take ages to render:(

Any trick ?

[PiXeL_MoNKeY]

You really shouldn't use weld and smooth when rendering. This welds the vertices and a.ssigns smoothing groups. This will nullify the normals set on the NURBS object. From the Help docs:
Weld and Smooth: Smooths out the mesh, removing small edges and polygons. Use this option when you convert to editable mesh or poly.
Save Render Mesh: Saves render mesh to disk for faster rendering of models when you re-open them.

-Eric

[bziegler]

You really shouldn't use weld and smooth when rendering. This welds the vertices and a.ssigns smoothing groups. This will nullify the normals set on the NURBS object. From the Help docs:


-Eric

Ok thanks for this info !
Just hope theses non welded poly won't be seens as gaps by the raytracers ;)

[PiXeL_MoNKeY]

If they show up as gaps then you need to modify your tesselation settings. You also need to make sure your edges are properly sewed together. Gaps are a result of a bad model/tesselation. If you see seems that are incorrect then that means the renderer isn't interpolating the Normal Data set by the nPower tools.

-Eric

[bziegler]

i agree that the good option to be sure there is no gap is to join surfaces !
but look at this thread :
http://www.npowersoftware.com/forums/showthread.php?t=687

thanks for helping by the way ;)

[nPower_Dave]

Eric is right. The Weld & Smooth option is really for use when converting to an editable mesh.