I would like to simulate ocean. So I decided to use a diffuse texture,
a cube map for reflection, and an animated bump map for waves. Now I
have to put all this together, and I found that this is called EMBM.
My problem is I can’t find any sample that explains EMBM without any
super powerful pixel shaders (that I definitely don’t want), or
without vendor specific extentions (ATI EMBM, or Nvidia register
I’d like to use only : ARB_texture_env_combine, ARB_texture_env_dot3,
This should be rendered in 1 pass on a 4 texture unit card (1 for
diffuse, 1 for cube map, and 2 for animated bump), and maybe not
renderable directly on a 2 texture unit card (should be better, but
you never get what you want). Anyway, even if this needs 3 passes on a
4 texture unit cards, I’ll go for it.
All suggestions are welcome.