I'm using the following pigment:

#local Temp_fnc1 = function {pigment {spherical}}
#local Temp_fnc3 = function
{
	Temp_fnc1(x, log(y + 1) / log(2),z).gray
}


The image actually *renders* most of the way. But about 3/4 done it 
quits with the error, "Parse Error: Floating-point exception detected in 
function 'Temp_fnc3'. Your function either attempted a division by zero, 
used a function outside its domain or called an internal function with 
invalid parameters."

Aren't parse errors supposed to occur *before* the image begins 
rendering? How do I fix it?

-Mike

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