I would be interested to know what ROM you are using and what wabbitemu version if you have them handy?

Hi guys,

Just thought id let you know that i have uploaded a project to
ticalc.org today. It is a 3D engine for the TI-83+ series calculators.

The program is a 3D model viewer that enables the user to view and
interact with a 3D model in real-time. Note that it renders
flat pattern-shaded polygons. Also included is a utility to convert
Wavefront OBJ models to .8xp programs for use with this
viewer.

It is written in z80 assembly and a 15MHz calculator is recommended.

Also a note that this is a calculator 3D engine, so please dont expect
performance to be awesome or anything. I dont think you are going to
see Halo on your calculator anytime soon with this engine, its more
just for the novelty of it all .

It is in beta testing so there could be problems. Please report any bugs
if you find any.

Here is a link: http://www.ticalc.org/archives/files/fileinfo/450/45097.html

Also here are some screenies.




Id appreciate feedback if anyone has some.

Enjoy.

Im allergic to peanuts .

Having a look, this utility will be extremely valuable! I cant believe ive made it this far without such a utility either :S.

Also, lets go CaDan!

*hides*.

Im wondering why they went with such a high resolution screen? Surely something like a 160x120 would have sufficed?

I was just wondering, is it a static route? Like are are you trying to make it move towards a specific point (like enemy_x + 10 or whatever) or does it try to aim for the player? If its the former you could have hard-coded the offsets.

From what i recall Jim's mapper prerotates the tileset for speed. It would require RAM proportional to how many tiles you had in this case.

Im sure i have it at home, ill look when i finish work.

It works on the same principal as DWedit's mapper, but Jim added layers etc.

EDIT - Didnt calc84maniac write a layered mapper as well?

In the past ive used a 2KB LUT to save on having to rotate each tile byte, basically each combination of 0-255 prerotated. Then just mask out the bits you dont need when copying. You could save on the masking with a 4KB LUT but that might be overkill for the benefit.