Hellow,
can I add standart environment mapping to be usend in reflectio of object ? 

ofcourse this is much more primitive then standart reflection, but
- it saves time
- can be used in some artistics effects
- allow to have POV scene acting same as in some other renderers

btw, about pigment as function - how about allow defining functions basing 
not only on x,y,z but alsow on u,v (uv-mapping) and nx,ny,nz (normal 
vector) ? 

-- 
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M

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