After spending the last 9 days fixing, improving and rewriting most of the 3D core, I looked for some 3D stuff to test. While searching I found a few 2D demos that still didn't work properly. They run without crashing, but were rendering incorrect stuff. The reason is quite simple: desmume doesn't support rotated / scaled sprites yet (among other bugs).
So, yesterday I decided that I should give a try to the 2D core, as the rotation / scale stuff looked like an effect called "rotozoomer", that I already coded in the past. The stuff looked simple, but actually took 2 entire envenings to work correctly. The implemention is far from being finished, but all the sprites that have scaling/rotation and I don't support, get rendered like in the last released desmume, so at least, I don't broke anything.
Currently, I only support rotation when sprite is 256 colours / direct color (16bits) and the sprite is not flipped. I think that I'll get 16 colour sprites support done in no time, but I've not yet looked at it. Supporting flipped sprites will be harder, as I don't have any demos that already do that. I guess I'll have to change some of the available examples to enable flipping in them.
Enough chit chat, this is an example of how it's working now, a rotated and scaled sprite, with double size (this last one simply doubles the clipping rectangle, so if you've an square rotated 45 degrees, corners don't get cut):
So, yesterday I decided that I should give a try to the 2D core, as the rotation / scale stuff looked like an effect called "rotozoomer", that I already coded in the past. The stuff looked simple, but actually took 2 entire envenings to work correctly. The implemention is far from being finished, but all the sprites that have scaling/rotation and I don't support, get rendered like in the last released desmume, so at least, I don't broke anything.
Currently, I only support rotation when sprite is 256 colours / direct color (16bits) and the sprite is not flipped. I think that I'll get 16 colour sprites support done in no time, but I've not yet looked at it. Supporting flipped sprites will be harder, as I don't have any demos that already do that. I guess I'll have to change some of the available examples to enable flipping in them.
Enough chit chat, this is an example of how it's working now, a rotated and scaled sprite, with double size (this last one simply doubles the clipping rectangle, so if you've an square rotated 45 degrees, corners don't get cut):
More stuff has been done/tested, you'll see in the (probably far in the future) release.
1 comment:
rockmanrotties: I think that I'll just modify an existing sample an see if the results make sense, but thanks :)
daniel: Well, keep learning, and in the future you'll be able to help with or create an emulator.
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