Re: TErrain strippifying

Erik Hofman wrote:

> Since TerraGear currently generates (small) triangle fans because of 
> various reasons it might be worthwhile to use triangle strips instead.
>
> In the OpenGL newsgroups I found a reference to a method to generate 
> triangle strips (w. sourcecode) and to tie multiple smaller triangle 
> strips together. This would allow us to generate one triangle strip 
> for each material within one tile! I suppose this would speed up 
> terrain rendering quite a bit:
>
> See the "Connecting strips" section of this document fro more 
> information:
> http://www.codercorner.com/Strips.htm


Strippifying would be good.  It probably wouldn't be hard to write a 
good stripifyer ourselves ... start with the least connected triangle 
first and add as far as you can go.  An "optimal" stripper is nice, but 
I don't think it would yield significantly better results than a "good" 
stripper algorithm.

The reason we have fans is that Steve Baker thought it might be a good 
idea at the time I was writing the code.  I've never gotten back to 
writing a stipifyer.  The one I found on the net was buggy and sucked 
which is one of the reasons I wrote a fanifyer.

Curt.

-- 
Curtis Olson        http://www.flightgear.org/~curt
HumanFIRST Program  http://www.humanfirst.umn.edu/
FlightGear Project  http://www.flightgear.org
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