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  Performance (Message 1 to 2 of 2)  
From: soliday
Subject: Performance
Date: 1 Jul 2014 14:05:00
Message: <web.53b2bf9a44b19566d4fc3100@news.povray.org>
I am very comfortable with both Constructive Solid Geometry (CSG) and the use
modelling tools such as AC3D that produce a union of triangles.

For VERY complex shapes, from a performance perspective, should I be using CSG
or triangle models? CSG is more work on my end, but I am interested in the
memory and CPU time for rendering, as well as the image quality.

I will gladly spend the time with CSG is the performance is significantly
better.


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From: Warp
Subject: Re: Performance
Date: 1 Jul 2014 14:56:54
Message: <53b2cc36@news.povray.org>
soliday <ste### [at] solidaycom> wrote:
> For VERY complex shapes, from a performance perspective, should I be using CSG
> or triangle models? CSG is more work on my end, but I am interested in the
> memory and CPU time for rendering, as well as the image quality.

The more complex the model, the faster it will be to render as a triangle
mesh compared to an equivalent CSG object.

(With the caveat that if by "triangle models" you mean eg. "a sphere made
up of thousands of triangles", and the CSG object consisting of a very
large amount of such tesselated spheres and other objects, it's not as
clear-cut anymore, as you are substituting each CSG component with
thousands of triangles.)

-- 
                                                          - Warp


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