In my native engine ( MMD ) we have a texture type Called .spa Which are simply .png maps renamed but the interesting feature about these textures are that they are basically a Cube map , but in Sphere form i want to know how to implement these textures in to my Material
SPA texture :
Toons on the other hand are werid they tell the Material how to handle the shadow and how it looks
they are usually a gradiant from Top ( White ) to Bottom ( Color Specified ) how do i implement these here’s an Example of Toons :
Right : w/ Toons , Left : w/o Toons
Toon Texture Example :
So in Conclusion how do i Implement these Textures?