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Wasn't it Warp who wrote:
>Slime <fak### [at] email address> wrote:
>> Why do you prefer mesh over mesh2? They both contain the same data, but mesh
>> is (*much*) slower to parse.
>
> Have you actually measured the parsing speed difference?
> I haven't and I would be interested in knowing some percentages...
Here's the results of a quick test that I ran. I took an OBJ file and ran it through a
convertor that can output both mesh and mesh2 formats.
The OBJ file is 16.7Mb, and has 99213 vertices and 170376 faces.
The Mesh2 parsed in 45% of the time and used 72% of the memory. The Mesh1 is shown as
having 86 frame level objects because there's a separate mesh1 object for each part
that
has a different texture.
Scene contains 86 frame level objects; 0 infinite.
Statistics for C:\My Documents\Poser\MyStuff\Spacegirl\AlienM1.pov, Resolution 640 x
480
----------------------------------------------------------------------------
Pixels: 307840 Samples: 363544 Smpls/Pxl: 1.18
Rays: 363544 Saved: 0 Max Level: 1/5
----------------------------------------------------------------------------
Ray->Shape Intersection Tests Succeeded Percentage
----------------------------------------------------------------------------
Mesh 387596 105567 27.24
Bounding Box 11443310 3850760 33.65
Light Buffer 1512203 649452 42.95
Vista Buffer 1346432 769933 57.18
----------------------------------------------------------------------------
Calls to Noise: 0 Calls to DNoise: 10
----------------------------------------------------------------------------
Shadow Ray Tests: 132628 Succeeded: 30319
----------------------------------------------------------------------------
Smallest Alloc: 25 bytes Largest: 1179672
Peak memory used: 46350651 bytes
----------------------------------------------------------------------------
Time For Parse: 0 hours 0 minutes 49.0 seconds (49 seconds)
Time For Trace: 0 hours 0 minutes 6.0 seconds (6 seconds)
Total Time: 0 hours 0 minutes 55.0 seconds (55 seconds)
POV-Ray finished
Scene contains 1 frame level objects; 0 infinite.
Statistics for C:\My Documents\Poser\MyStuff\Spacegirl\AlienM1.pov, Resolution 640 x
480
----------------------------------------------------------------------------
Pixels: 307840 Samples: 363912 Smpls/Pxl: 1.18
Rays: 363912 Saved: 0 Max Level: 1/5
----------------------------------------------------------------------------
Ray->Shape Intersection Tests Succeeded Percentage
----------------------------------------------------------------------------
Mesh 445143 85352 19.17
Bounding Box 14542692 4389902 30.19
----------------------------------------------------------------------------
Calls to Noise: 0 Calls to DNoise: 10
----------------------------------------------------------------------------
Shadow Ray Tests: 81231 Succeeded: 31723
----------------------------------------------------------------------------
Smallest Alloc: 25 bytes Largest: 12267096
Peak memory used: 33609623 bytes
----------------------------------------------------------------------------
Time For Parse: 0 hours 0 minutes 22.0 seconds (22 seconds)
Time For Trace: 0 hours 0 minutes 6.0 seconds (6 seconds)
Total Time: 0 hours 0 minutes 28.0 seconds (28 seconds)
POV-Ray finished
--
Mike Williams
Gentleman of Leisure
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