hi, thx for the replies
_DarkWing_ : I'll try the grid setup you just mentioned, thx. But you also mentioned finite differences/sobel ... what's that ? I know sobel filter (the basics) but I only heard about finite differences. How those 2 things can be used to compute normals ????
python_regious : That would be good for a precomputation, but I also have to compute them on the fly (only a few normals each frame, related to geometry clipmap)
OrangyTang : I really don't like leaving it like that. Plus, I use geometry mipmap, and on the transition area between 2 clipmaps, I need to interpolate normals, and I currently still have some pop ups there. I'm pretty sure the problem might be solved (at least partially) by correcting these artefacts.
Edit : Ok, I tried to generate my grid like DarkWing said ... but I must be making something wrong :/ I use a big triangle strip. Here's the code to generate it :
for (int y = minY; y < maxY; y++){ // add the second vertex to add the degenerated triangle // between each "lines". When y == minY, this could be // skipped. index[i++] = (y + (minX % 2)) * m_ClipMapSize + minX; for (int x = minX; x <= maxX; x++) { index[i++] = (y + (x % 2)) * m_ClipMapSize + x; index[i++] = (y + ((x + 1) % 2)) * m_ClipMapSize + x; } // add the first vertex to add the degenerated triangle // between each "lines". When y == maxY - 1, this could // be skipped index[i++] = (y + ((maxX + 1) % 2)) * m_ClipMapSize + maxX;}
I am totally blind or this isn't the way to generate a strip with _DarkWing_'s setup ?
Edit2 : I was totally blind ^^
[Edited by - paic on June 29, 2005 4:42:23 AM]
As you see, we can see the grid. I don't know why. This is the code I use to compute each vertex normal :
