Artur,
This looks like it is doing a pretty good job at stripifying the data.
The one triangle strips are probably a problem with the model, as you
said. I'll look into this more. I'm working with Paul Byrne to figure
out why his stats for j3dfly are different from mine. Please send me
your models.
thanks!
andrea
Artur Biesiadowski wrote:
>
> Andrea Tartaro wrote:
> >
> > If you can send me your data, it would be very useful for me to see what
> > it is doing. If you take out the zero-area triangles, the strip would
> > break making tri strips even shorter. If you want more information on
> > your strip length distributions, the StripifierStats class has a method
> > toString() which will print out a distribution of strip lengths (eg. how
> > many strips are length 1, 2, 3, 4, 5, 6, 7, 8, 9, 10-19, 20-49, 50-99,
> > 100-999 and 1000 or more).
>
> Here is an output for kong.3ds (I got the file from openfx, but I
> suppose it is standard 3ds example).
>
> num orig tris: 12472
> num orig vertices: 37416
> number of strips: 6675
> number of vertices: 27488
> total tris: 14138
> min strip length: 1
> max strip length: 101
> avg strip length: 2.1180524344569287
> avg num verts/tri: 1.9442636865186023
> total time: 851
> strip length distribution:
> 1=6230 2=17 3=3 4=30 5=11 6=43 7=15 8=20 9=5 10-19=133
> 20-49=154
> 50-99=13 100-999=1 1000 or more=0
>
> Original number of tris is ok. But after stripification stats panel
> shows
> Triangles: 20813
> Average strip length: 4.1180525
>
> Which seems a bit different from stripifier stats output. I got the
> output by adding print in scenegraph/traverser/GeometryArrayStripifier.
>
> If we will look at printed output, stripifiers seems to do quite nice
> job in finding long strips, but at the same time leaves horrible amount
> of free floating triangles. But it might be a problem with model - maybe
> triangles are not exactly next to another ?
>
> With other file (this funny man in a hat)
> num orig tris: 14313
> num orig vertices: 42939
> number of strips: 7665
> number of vertices: 31866
> total tris: 16536
> min strip length: 1
> max strip length: 125
> avg strip length: 2.1573385518591
> avg num verts/tri: 1.9270682148040639
> total time: 1091
> strip length distribution:
> 1=6865 2=121 3=30 4=69 5=35 6=63 7=50 8=49 9=37 10-19=215
> 20-49=116
> 50-99=10 100-999=5 1000 or more=0
>
> This time number of tris is a bit too low (it was 15092) - probably some
> are in different tree. After stripification in panel there is following
> data
> Triangles: 24201
> Average length: 4.1573386
>
> If you want I can send you 3ds file by private mail (please contact me
> directly if you are interested to not clutter the maillist).
>
> Artur
>
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