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I'm one of the coders who worked on the Overdrive 2 demo (although not on the reverse engineering that resulted in this document). We're going to release more f
by jix 9y ago
I'm one of the coders who worked on the Overdrive 2 demo (although not on the reverse engineering that resulted in this document). We're going to release more follow-ups about the development of the demo.
I'm currently working on a write-up of the polygon to tile drawing routine used for the fullscreen 3D scenes.
I'm not sure about the time frame yet, but they will be posted at http://www.pouet.net/prod.php?which=69648 http://www.pouet.net/prod.php?which=69648 and/or http://www.pouet.net/topic.php?which=11035 http://www.pouet.net/topic.php?which=11035.
- danbolt 9y agoThat's really exciting to hear! The fullscreen 3D bits were some of the ones that really caught my attention. I know with X on the Game Boy [1], lookup tables were used to speed up the arithmetic. I'd be curious to see if the Genesis used similar techniques, or if specific things were done with the hardware. [1] https://www.youtube.com/watch?v=pbtmBQIKTh8 https://www.youtube.com/watch?v=pbtmBQIKTh8