Gail Shaw wrote:
> 
> Thanks, renders in 3 min without eval, looks terrible though.
> 
	The default max_gradient is 1. Try specifying it manually (around 40
should give acceptable results) to get a good balace between rendering
time and visual result.


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Christoph Hormann wrote:
> 
> There is (in my IsoWood demo, you get whole pages of max_gradients :-)
> 
> BTW, i had several situations when 'eval' was faster than a specified
> max_gradient, don't know why though.
> 
	Either you gave a much too high value for max_gradient, or else it
varies greatly from point to point in your isosurface (I think eval
adjusts the max_gradient on a point by piont basis, whereas max_gradient
is necessarily global, therefore if there are only a couple of points
with a high gradient, eval should be faster than using this high value
for every point).


-- 

* Abandon the search for truth, * mailto:ber### [at] inamecom
* Settle for a good fantasy.    * http://www.enst.fr/~jberger
*********************************

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