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FS2004 Faces/Triangles

Sidney Schwartz

Sidney Schwartz

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us-oregon
Sketchup measures object complexity in # of faces. MCX uses # of triangles. Usually I will only start having problems exporting from MCX if the SU face count of the object is around 20,000. I've assumed, incorrectly, that MCX triangle count would normally be about twice the SU face count, since a face consists of two triangles. Anyway, here are the face/triangle counts of a few objects.


Object____________SU Faces_____MCX Triangles____Ratio

Blimp_____________19,137_______45,130__________1:2
Tug Alaksan_______12,012_______62,448__________1:5
Tug Steam_________60,968_______231,130_________1:4


The Blimp I've had no trouble exporting from MCX. Tug Alaskan was a fail. Tug Steam I didn't even try. Why the discrepancies in the ratios of triangles in MCX to faces in SU. Shouldn't this be more or less constant? Also, it looks like the MCX triangle count is the more meaningful indicator of object complexity.

Can someone please help enlighten the stoopid person? :confused:
 
Hi,

The triangle count is for sure the best way to measure complexity, because inside the FS MDL object only triangles are stored.

How many triangles there are in a face, depends on how many vertices that face has. The general rule is that the amount of triangles is the amount of vertices in the face minus two.

So for those objects where you have a higher ratio, I guess many of your faces have more than 4 vertices, for example because you used circles or other similar objects.

High number of triangles does not have to be a problem, it also depends if they all share the same material or not. Too many triangles in one material is often a problem.
 
arno said:
So for those objects where you have a higher ratio, I guess many of your faces have more than 4 vertices, for example because you used circles or other similar objects.
Click to expand...
Makes perfect sense, and hadn't occurred to me yet.

Thanks, Arno. :D
 
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