This is a thread for demos of the "new" video mode using DMA to generate a direct color RGB display on the MD. For details on how it works, you might read the long thread over at SpritesMind. In the meantime, devs like yours truely will post some examples here.
This first example is a simple raycast engine like used in Wolf3D. It draws a simple level using a few W3D textures. You move around using the d-pad, and A and C strafe left/right. That's all this does at the moment. This is a CD demo - ISO files are provided for US and EU. Burn to CDR and run on a real system - no emulators currently support direct color dma. Nothing special is needed - just a plain SegaCD/MegaCD/CDX/X'Eye/WonderMega. If you have a Japanese system, you'll either need to contact me for a JP ISO, or use a region-free BIOS with a flash cart.
EDIT: And now with collision detection! No more walking through walls, but you do slide along them nicely when at an angle. I also made sure every area in the map can be reached... which is good since you can't reach them by walking through the walls anymore.
Also has ISO files for all three regions.
EDIT 2: Oh, I should mention this is a port of the demo, LCDWolf3D by Jeremy A. Burns. I changed it from floating point to fixed point, corrected some bugs, and completely replaced the collision detection code. I also use color textures as opposed to the B&W textures in the original. All source is, as usual, included in the archive.