Piping a bunch of triangles to irrlicht

Poldi · Post by **Poldi** » Mon Jun 07, 2004 3:52 pm

I have a little problem here:

I am just writing some classes that will interpolate a landscape made from vertices and return a pointer to a bunch of triangles and the count of triangles. It will extract the frustum and everything else that is hidden and return nothing but the triangles visible on the screen. those will be something about 50.000 - 200.000 tringles (last value is just a guess, i could do about 100.000 now, but there is lots of optimization to be done). Is it possible to use irrlicht to render those triangles with lightning and textures and stuff providing no other information and no other triangles but those visible?

if not, what information would have to be provided?

simile · Post by **simile** » Mon Jun 07, 2004 3:59 pm

Hello Poldi

Take a look at the TerrainSceneNode. It renders a lot of triangles but frame rate decreases heavily. I reckon 100'000 tirangles shoudn't be a problem.

Regards
Tom

Poldi · Post by **Poldi** » Mon Jun 07, 2004 4:39 pm

I cant use the Terrainscenenode because I dont want Irrlicht render my terrain but just the triangles I get out of my own algos. The terrain consists of millions of triangles. I was referring just to the visible part of it. This is the part that my Algos return and that I want Irrlicht to render. I could easily change the code so that an OGL Modelviewmatrix for the terrain would be returned or passed to it.

2nd: Its not exaclty an outdoor terrain but it could also consist of tunnels and rooms.

Well ... writing this and reading the API i think you still gave me what I deserved.

Thanks very much

Poldi