Hi, I draw grids of different sizes for a terrain algorithm and i get T-Junction that i remove by drawing a triangle list on the borders but i have pixel artifacts. So i was wondering if i did the triangle list correctly or not (check images). As you can see in the screenshot above, the pixel in the middle is a T-Junction. T-junctions seems to be removed when i drawn the triangle list but there is the other two artifacts. They act like T-Junctions but are in the middle of a grid (they can't be T-Junctions, don't know why i have those artifacts). The grids are triangle strips.

thx, didn't know all those techniques but i finally remove T-Junctions with a string of degenerate triangles ( zero area triangles ).

When I remove all drawing call that have T-Junction i still have pixel artifacts ( the other two bright blue pixels ). Seems like a texturing problem but i don't know what it really is. Grids have 64x64 vertices, all have same size.



Edit : The other two pixel artefacts are MipFilter artefacts, i set MipFilter to none and it works now.

[Edited by - filousnt on March 4, 2007 5:44:04 AM]