Code for PVR capabilities

[q_006]

I read articles and posts that say the PVR is capable of:

Bump Mapping, Fog, Alpha-Bending (transparency), Mip Mapping (polygon-texture auto switch), Tri-Linear Filtering, Anti-Aliasing, Environment Mapping, and Specular Effect.

Does KOS (any versions) have the code to utilize or invoke all of these hardware capabilities? If not, then which ones are available right now?

I would ask for code or functions but I think that would be pushing it....

[GyroVorbis]

Off the top of my head KOS has

Alpha blending, Trilinear filtering, and (pretty sure anti aliasing)

I know somebody at Boob! (quarn?) managed to do bump mapping, but I don't know if KOS covers that.

Hopefully somebody could elaborate/correct me?

[Quzar]

i know there were multiple bump mapping demos, but at least one was fully software.

[GyroVorbis]

Okay, while we're talking about bump mapping, could somebody point me to the location of one of these demos?

[quarn]

Bump Mapping, Fog, Alpha-Bending (transparency), Mip Mapping (polygon-texture auto switch), Tri-Linear Filtering, Anti-Aliasing, Environment Mapping, and Specular Effect.

Fog, Alpha-blending, Mip Mapping and Tri-Linear filtering is standard in KOS. I think you can easily enable Anti-Aliasing aswell, Although I didn't really see any effect in using it (it's only 2x1 AA).

Environment Mapping, well, AFAIK there is no way to send normals down the pipeline, but if you want something simple it's so easy to calculate the texture coordinates yourself. Just set u = 0.5 + 0.5 * normal.x and v = 0,5 + 0,5 * normal.y.

Specular highlight, use the oargb to set it, but you need to enable some bit in the pvr-header first. I'm not sure if this was ever implemented in KOS or if there was just some demos floating around showing it.

Bump-mapping, yes, I was the first one to figure it out and show how to use it. A (very) simple demo using bump-mapping: http://www.boob.co.uk/files/bump.tar.gz
A tool for creating bumpmaps suitable for the DC from standard heightmaps: http://www.boob.co.uk/files/dcbumpgen.tar.gz

[c99koder]

I just spent way too much time watching that bump map demo, well done

-Sam