Christopher James Huff wrote:
> In article <4040c3be$1@news.povray.org>,
>  Jim Charter <jrc### [at] msncom> wrote:
> 
> 
>>I am getting a render time error "too many nested textures".  Can anyone 
>>explain what is happening?  How many are too many, and what does POV 
>>consider to be a nested texture?  Afaik, I am not using syntax such as :
> 
> 
> It appears to be something to do with warping normals, something that 
> was added after 3.1. My first guess is that earlier versions didn't warp 
> normals when the texture was warped...this code was written to fix it, 
> but the programmer was lazy and it can only handle 100 textures at once. 
> It refers to nested texture evaluations, not nested textures...I'm 
> guessing you'll hit it if you have a chain of more than 100 evaluations 
> of transparent patterned textures along a ray.
> 
Thankyou Christopher.  That makes sense. I think.  By normals you are 
refering to the normals of the triangles in the mesh.

If I have:

mesh {
	triangle {}
	triangle {}
	triangle {}
	triangle {}
	texture a
}

Is that one evaluation, or up to four?

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