From: Jellby <jel### [at] yahoocom>
Date: Sat, 08 Jan 2005 12:59:12 +0100

See the thread:
http://news.povray.org/povray.general/thread/%3C41d6bd46%40news.povray.org%3E/

The problem is, when writing the hf-mesh to an external field, some
numbers (number of vertices, indices...) should be written as
integers, but, when they're very large, they're actually written as
floats (1.22e+06, for example), which leads to errors.

The problem is relatively easy to fix. In the macro HFCreate_(), in
shapes.inc, make the following changes:

- Use "str(xRes*zRes,0,0)" instead of just "xRes*zRes" (3 places)

- Similarly, "str((xRes-1)*(zRes-1)*2,0,0)" instead of
"(xRes-1)*(zRes-1)*2"

- When face_indices are written, instead of "F1+A, F2+A," use the more
complex:

"<",str((F1+A).x,0,0),",",str((F1+A).y,0,0),",",str((F1+A).z,0,0),">",

"<",str((F2+A).x,0,0),",",str((F2+A).y,0,0),",",str((F2+A).z,0,0),">",
(perhaps there's an easier way)

There might be more macros with similar problems, I experimented only
with HF_Sphere, actually

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