sub-surf's slow down blender


(humphrey) #1

I am using sub-surfs to created a character, however when I turn on subsurf blender starts running really slow. Is there a way to speed this up? WOuld it run quicker is i converted it to a plain mesh? Or is it just htis stuipd OS X 2.23 version of Blender? I know it will be good to get a copy of 2.25 when the source is opened!

Humprhey


(kattkieru) #2

There’re two subsurf numbers below the subsurf button. One is how high to subdivide the model during editing, and the other is how high to subdivide for modeling. I keep the editing number (the one on the left) at a 1 or 2 on my iBook, and for rendering I go as high as 4 or 5. Higher than that really isn’t necessary IMHO, and it slows the system to a crawl to create that many faces.

Hope this helps.


(S68) #3

What kattkieru says is true only in 2.25

2.23 does not have a control on different Subsur levels for rendering/modeling.

Unless your PC is powerfull any subsurf beyond level 3 will slow it to a crawl because Blender needs to do calculations and handle all those additional vertexes.

Remember that, if N is subsurf level each edge
is splitted into 2^N subedges and each (Quad) face into 2^(N+1) faces!!!

Stefano


(kattkieru) #4

What kattkieru says is true only in 2.25

2.23 does not have a control on different Subsur levels for rendering/modeling.

Hehe, my bad. I never used 2.23 seriously enough. :o