From .obj to .navmesh

[Millow]

All right thanx,
I was wondering if it was integrated directly in the demo. I'll code it then, thx

[hamburger12]

Wow now it gets verry mysteryus. If i use your mesh settings (origion...) its the same as my Problem. But if i use the Original code, than i can navigat in the same Tile but not from tile to tile :S

[namreeb]

If you cannot navigate from one tile to the other, your settings are likely incorrect.

[hamburger12]

KK that error i resolved^^ Seems like recast can't handle 533.333.... So now the Tiled Navigation reworks now i will tray your methode^^

But still the same error: Can dump mesh if X: 0 Y: 0 it works well if i change the Tile Position Navigation is not working

Here the Build Funktion:

void Sample_TileMesh::buildAllTiles()
{
	if (!m_geom) return;
	if (!m_navMesh) return;
	
	const float* bmin = m_geom->getMeshBoundsMin();
	const float* bmax = m_geom->getMeshBoundsMax();
	int gw = 0, gh = 0;
	rcCalcGridSize(bmin, bmax, m_cellSize, &gw, &gh);
	const int ts = (int)m_tileSize;
	const int tw = (gw + ts-1) / ts;
	const int th = (gh + ts-1) / ts;
	const float tcs = m_tileSize*m_cellSize;

	int AdtX = 40;
	int AdtY = 33;
	
	// Start the build process.
	m_ctx->startTimer(RC_TIMER_TEMP);

	for (int y = 0; y < th; ++y)
	{
		for (int x =0; x < tw; ++x)
		{
			m_tileBmin[0] = bmin[0] + x*tcs;
			m_tileBmin[1] = bmin[1];
			m_tileBmin[2] = bmin[2] + y*tcs;
			
			m_tileBmax[0] = bmin[0] + (x+1)*tcs;
			m_tileBmax[1] = bmax[1];
			m_tileBmax[2] = bmin[2] + (y+1)*tcs;
			
			int dataSize = 0;
			unsigned char* data = buildTileMesh((AdtX * tw)+x, (AdtY * th) + y, m_tileBmin, m_tileBmax, dataSize);

			if (data)
			{
				// Remove any previous data (navmesh owns and deletes the data).
				m_navMesh->removeTile(m_navMesh->getTileRefAt(x,y,0),0,0);
				// Let the navmesh own the data.
				dtStatus status = m_navMesh->addTile(data,dataSize,DT_TILE_FREE_DATA,0,0);
				if (dtStatusFailed(status))
					dtFree(data);
			}
		}
	}
	
	// Start the build process.	
	m_ctx->stopTimer(RC_TIMER_TEMP);

	m_totalBuildTimeMs = m_ctx->getAccumulatedTime(RC_TIMER_TEMP)/1000.0f;
	
}

[ostapus]

check returned code at each step... ie
1. navMesh->calcTileLoc(startPoint, &start_tile_x, &start_tile_y)
check if tile_x and tile_y are loaded
2. step 1 for endPoint

3. rc = m_navQuery->findNearestPoly( startPoint, m_extent, filter, &startRef, 0) ;
check dtStatusSucceed(rc) and navMesh->isValidPolyRef(startRef) both true
4. step 3 for endPoint, endRef

5. make sure tiles required for navigation are loaded

6. rc = m_navQuery->findPath(....)
check rc - you will get precise info why (if any) findPath failed.

something like that.

[hamburger12]

Seems like calcTileLoc fails :S

[ostapus]

well then, either coordinates are wrong (x,y) or/and origin is wrong or tileHeight/tileWidth
calcTileLoc is pretty straightforward


*tx = (int)floorf((pos[0]-m_orig[0]) / m_tileWidth);
*ty = (int)floorf((pos[2]-m_orig[2]) / m_tileHeight);

[hamburger12]

I think m_orig is the Problem.

[hamburger12]

Ok got it until the part of loading meshes. All went right, if i just want to navigate in the same ADT. But if i want to navigate from atd to adt it just navigate till the endline.

[guizmows]

it's again a problem of tile number.

[hamburger12]

Sure? I use 1 tile per adt. I also can navigate in both tiles when they loaded at Same time. But not from tile to tile. For calculate tile x and y i use calctilelocation and the x and y are the Same as the adt x y.

[ostapus]

most likey tiles are not getting connected. When detour loads tiles it builds portals between tiles for intertile navigation and if tiles have gap between edges - detour consider them as not connected therefore navigation fails. the best way to check it - make standalone program (or alter demo project) to load your generated mesh and visually check if there is gap between tiles.
when you generate tiles with recast - make sure you triangles soup has some more data around calculated area (that is for each adt add some triangles from neighbor adts)

[hamburger12]

Mh seems like its not connected o.O

[ostapus]

yup. to fix it as i said - feed more data from neighboring adts

[hamburger12]

Mh think the prob is that the Navgeneartion is not 100% :S