#Flexify make skybox how to#

#Flexify make skybox how to#

you will need to turn both the GI settings to zero in the render window if you are having problems with seams.Īlright, Now, I'll teach you how to create a 3D texture using the directx texture tool. also if you do decide to use terragen to create cube maps, you might have a problem with 'seams' between each picture, this is usually caused by 'global illumination' or GI. two things i should mention though, is first, all six of the images must be the exact same dimensions, such as 1024x1024. I used a program called Terragen to create these pictures. The below diagram shows you the idea in 2D, which we would be using (u,v) texture coordinates, but in 3D, the idea is the same, but instead of the 2D (u,v) texture coordinates, we will be using 3D (u,v,w) texture coordinates. All we have to do is take the position of the current pixel we are rendering, and turn it into a vector to find which texel from the cube map we will be coloring the pixel. To map the 'cube' texture onto a sphere, its actually not too difficult. In the file, the image would be stored like the one below:

A cube texture is six images, two for each axis (one for +x, -x, +y, -y, +z, and -z). We will learn how to create a cube texture using the directx texture tool. We can do this by setting the z value in our view space to 1. Another thing is the skybox is always in the back of the depth buffer, so everything drawn onto the screen will ALWAYS be in front of the skybox. To keep this illusion up, the skybox must always be centered around the camera, so no matter how far in any direction we move, we will never get closer to the skybox. We can create a sky box using this technique, by loading a 3D texture, then using this 3d image to texture a sphere that surrounds the camera.

Cube Mapping is a technique often used to create a surrounding environment infinitely far away, such as the sky.