Big scene problem

gmann · Post by **gmann** » Mon Sep 13, 2004 8:51 pm

I made my .3ds scene map, about 500k triangles, the render speed seems tooo slow, the framerate is 3 or 4. I decrease the triangles to 380k, framerate is still 3 or 4, for the reality reson, the faces can't decrease any more. Anybody know how to improve the performance? any suggestion is appreciated.

TH · Post by TH » Tue Sep 14, 2004 5:49 pm

Try setting camera->setFarValue(500); to something approprite to your sense and model.

hope this help.

TH

gmann · Post by **gmann** » Wed Sep 15, 2004 5:01 am

Thanks for the reply, I'v tried camera->setFarValue(), the frame rate does not change no matter what value I set the parameter.

Asheh · Post by **Asheh** » Wed Sep 15, 2004 10:50 am

500k seems pretty hefty, I had about 5 trees with 20k triangles per tree which is what? 100k, and it was slowing down quite alot. Not sure how you cna speed it up?
Maybe backface culling? etc?

gmann · Post by **gmann** » Wed Sep 15, 2004 11:49 am

Another question, In 3DMAX, we see smooth render effect, how to make the scene looks like 3DMAX with irrlicht engine? Is there any function to make irrlicht engine render smoothly, if so maybe I can decrease more face and not lose curve effect.

Asheh · Post by **Asheh** » Wed Sep 15, 2004 12:59 pm

Smooth Render? Well when you render in max it calculates all the lighting and such, ie its not realtime like irrlicht... so you wouldnt be able to get the quality of a max render into irrlicht, or to say the least not without a huge speed loss

gmann · Post by **gmann** » Thu Sep 16, 2004 12:09 am

I see, maybe build the whole scene map in a single .3ds file fromat is not a good choise, does the render of bsp scene map optimized in irrlicht? Change my map file format from 3ds to bsp can speed it up?

Acki · Post by **Acki** » Thu Sep 16, 2004 12:27 am

Did you create an OctTreeSceneNode ???

node = smgr->addOctTreeSceneNode(mesh->getMesh(0));

Guest · Post by **Guest** » Thu Sep 16, 2004 1:27 am

Yes, I do, It seem's not collision detection which slow the render speed, whether I do collition detect or not, the speed do not change.

gmann · Post by **gmann** » Thu Sep 16, 2004 1:29 am

Yes, I do, It seem's not collision detection which slow the render speed, whether I do collition detect or not, the speed do not change.

gmann · Post by **gmann** » Thu Sep 16, 2004 1:29 am

Yes, I do, It seem's not collision detection which slow the render speed, whether I do collition detect or not, the speed do not change.