rendering

I have a project which takes a picture of topographic map and makes it a 3D object. When I draw the 3D rectangles of the object, it works very slowly. I read about BSP trees and I didn't really understand it. Can someone please explain how to use BSP in 3D (maybe give an example)? and how to use it in my case, when some mountains in the map cover other parts so I need to organize the rectangles in order to draw them well? In n-D a BSP tree is a spatial partitioning data structure that recursively splits the space into cells using splitting n-D hyperplanes (or even n-D hypersurfaces). In 2D,

Does anyone know whether its possible to query the render time of the last render in maya via python or mel? Render time is stored in the render viewer window in the form of a string at the bottom of the image, I would like to access this time and retrieve for later use - is this possible? Thanks I know of no way to query it directly, but this solution works: Put the following in your Pre Render MEL (from the Render Settings): python "global last_render_time;import time;last_render_time=time.time()" Expanded for readability: global last_render_time # not needed when in module import time last

I created app according to this post http://stjhimy.com/posts/7-creating-a-100-ajax-crud-using-rails-3-and-unobtrusive-javascript , but get an error: Missing template posts/create, application/create with {:handlers=>[:erb, :builder, :coffee, :haml], :formats=>[:html], :locale=>[:en, :en]}. Searched in: * "/home/ember/Projects/test_app/app/views" Maybe in Rails 3.1 actions render something by default. Besides, there no format js (:formats=>[:html]). But i can`t find any about this. When i doing like this: respond_to do |format| format.js {render :content_type => 'text/javascript'} end or