I’ve coded a skybox class to draw a box with 6 textures on each quad to represent the sky. The method works perfectly, but I can see the joint between each quads. I checked the zbuffer, but the near plane is at 0.1f and the far at 1000.0f so I don’t think this is the problem, I also tried to change the filtering of the textures and disactivated the mipmapping but I sill not solve the problem. When I set the camera very near the joint, I can see a gradation at the border of the texture, why? There is no hole, as I use 8 vertices for all the box quads, and I can’t see the background color … I need help please, I really don’t know where does it comes from.