Ogre Forums

Time for me to ask for help ... again
I read all morning about it, but found nothing that could help me. Here's the problem :

I have my mesh and UVmap in 3DSmax, and they render as I want.




But imported in the engine, it looks like this :



There's a gap at the symetry axis, on the head, and at the jointure of arms and legs, that is not in the 3DS render or window.

Here's the material file :

material Examples/heros
{
technique
{
pass
{

scene_blend alpha_blend colour_blend
alpha_rejection greater 128
depth_write on


texture_unit
{
texture heros.tga
tex_coord_set 0
}


}



}

Is there something I forgot ?

try to remove tex_coord_set 0 from your material script.

This gives me the same effect
I put this line because I was afraid a bad coordinate set was used, but it's not the case.

is it also happens if the camera is close to the character in game ?? (same distance as 3DSMax, from camera position to character position)

if not, i think it's about the texture mip-map, somekind of UV offset problem. ( just a guess )

OK I tested with a closer camera, and it seems that this is it ! I'm gonna search around the forum and wiki to understand mipmapping, and I'll post the results.

Thanks alot vinhk & celic

edit : I played with the filtering modes (finding topics that match my issue is quite easy now :p), and the result is better, even if is not perfect. I'll continue to try !

My guess is that you have made the texture with pixel accuracy. And your background is white. Automatic mip-map generation then smoothes the white with the color and hence the seams. You could try to "overcolor" your texturemaps or create mip-maps manually.

Also if your texture map runs up to the edges of the texture, use 'tex_address_mode clamp' to avoid wrap-around filtering to the other side of the texture.

After some tries, here's the result :



(The edges are ok on the new model, not on this test model )


there's still a tiny white line at the symetry, but the other jointures are ok.

I used anistropic filtering :

MaterialManager::getSingleton().setDefaultTextureFiltering((Ogre::TextureFilterOptions)TFO_ANISOTROPIC);
MaterialManager::getSingleton().setDefaultAnisotropy(8);

And added the clamp adressing mode in the material script.

Really not perfect, but I'll keep it if I don't manage to have better tonight.
I guess I'm doing something else wrong, but what ?

Thanks for your help