Releasing Terrain resources ?

[DeusXL]

Hello everyone,

I switched to Irrlicht .NET recently and I come with a couple of questions on "how to release resources".
Here's the problem :
My world is composed by many terrains (heightmap + texture) and I load them with a basic addTerrainSceneNode. The problem comes when a player leaves on of these terrains... I tried everything but whatever I do, no RAM is released and whenever he re-enters, the resource for the terrain (~50 MO) are reallocated... Moreover, with each new terrain loaded I lose ~10 FPS even if I release old terrain... I even tried to modify .NET wrapper to release resources but nothing has worked... Is there a way to solve this problem ?

2nd "problem" :
I use 256x256 heightmaps and I need to scale them greatly... When there were moutains, the render was horrible, not smoothed at all...
I modified "bool CTerrainSceneNode::loadHeightMap( io::IReadFile* file, video::SColor vertexColor )" in Irrlicht base library and added :

Code: Select all

for(s32 i = 0; i < 10; i++)
{
	for(int index = 2; index < (TerrainData.Size * TerrainData.Size - 2); index++)
    {
           pMeshBuffer->Vertices[index].Pos.Y = 
               (pMeshBuffer->Vertices[index - 2].Pos.Y + pMeshBuffer->Vertices[index - 1].Pos.Y +
                pMeshBuffer->Vertices[index + 1].Pos.Y + pMeshBuffer->Vertices[index + 2].Pos.Y) / 4;
    }
}

The result is quite prettier, I was just wondering if I wasn't adding some "issues" and/or if there was any other better way to solve this problem.

Thank you for everything (more than all for trying to understand my terrible english :p)

[HantaCore]

we could try to add some "Disposable" attributes to the classes (like ITerrainSceneNode), calling the destructor of the native instance for exemple... but that's just an idea

[DeusXL]

Actually I add a dispose (heriting from IDisposable) function who "drops" (I remember that "drop" calls the destructor of the object) the base SceneNode and it works almost perfectly : now I get the fps back and i gain 80% of RAM released... Better than 0% and no fps but not perfect

[HantaCore]

great