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jtopaz, Member
Posted: 01 July 2011 04:14 PM Total Posts: 53
Hi Everyone,
I have make 3d scene with only 3,000 triangles but it is much much slower than the away3d official example (Shallow Water Simulation with 80,000 triangles). After I remove the material lighting and fog method, it is 60% faster but still much slower than the official example. I still don’t know why my 3d scene are slow.
My question is “Any guideline for away3d 4 performance tuning”?
Some of my question:
- Should we avoid using any kind of texture, lighting.
- Is triangle the biggest contribute to away3d performance?
- Will model file format count to performance?
thx
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Alejandro Santander, Administrator
Posted: 01 July 2011 04:52 PM Total Posts: 414
[ # 1 ]
Hi jtopaz,
May I ask how many meshes you are using to hold those 3000 triangles?
The shallow water demo is fast because it uses only 1 mesh, hence putting all those triangles into a single vertex buffer (and other buffers needed for shading).
A buffer can hold a certain number of triangles (a number which is very big) and using many buffers with a low number of triangles is a waste of resources.
This is not something that applies only to Away3D, it is a common matter in GPU stuff.
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Mr Margaret Scratcher, Sr. Member
Posted: 01 July 2011 06:42 PM Total Posts: 344
[ # 2 ]
Aha… I will be running into this problem quite soon, and it was something i was wondering about…
So what’s the best way to dynamically create about 4000 cubes, be able to texture them all individually and be interactive?
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Alejandro Santander, Administrator
Posted: 01 July 2011 07:19 PM Total Posts: 414
[ # 3 ]
Fabrice recently commented about this and mentioned tools.Merge.as
As for texture I would imagine some sort of blitting technique.
As for interactivity I don’t know really =)
Not too helpful I know…
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Richard Olsson, Administrator
Posted: 02 July 2011 04:01 PM Total Posts: 1192
[ # 5 ]
To the original poster, are you using the correct window mode (“direct”) and have you made sure that GPU acceleration is enabled in your Flash Player?
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Mr Margaret Scratcher, Sr. Member
Posted: 02 July 2011 04:32 PM Total Posts: 344
[ # 6 ]
I did wonder this as well, and tried to switch it off to test, but yeah, that made it even worse..
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