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Re: Doom floor texturing
Posted by: mikro Jan,22.2013-16:22 

Hehe, you're welcome, I have never imagined that I'll have a code talk with the famous Doug Little ;-)

The video RAM remapping trick -- an amazing idea, actually *this* could really work perfectly, wow, I'm tempted to try that by myself too!

About the DSP transfer: you can hide really a lot, I did it for 7 DSP instructions (with a lot of parallel moves going on) without any problem and still without a need of synchronization on CPU side in the mainloop. Of course, as it was for demo purposes, everything is pure affine mapping plus divides are replaced by * 1/x precalculated values (eats some memory but super fast).

I was tempted to code my own perspective correct texture mapper but have never gotten to finish it. But I must say, this is mutually motivating ;-)

I hope to see more of your Doom clone, oh my, I remember how we were disappointed when you'd abandoned the project back in the 90s.. :)







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Topic Posted by  Date 
Doom floor texturing dml Jan,21.2013-18:47
  Re: Doom floor texturing dml Jan,21.2013-18:48
    Re: Doom floor texturing dml Jan,21.2013-21:33
      Re: Doom floor texturing Defjam Jan,21.2013-21:44
        Re: Doom floor texturing dml Jan,21.2013-22:38
        Re: Doom floor texturing dml Jan,22.2013-10:48
      Re: Doom floor texturing mikro Jan,22.2013-11:03
        Re: Doom floor texturing dml Jan,22.2013-11:43
          Re: Doom floor texturing mikro Jan,22.2013-13:30
            Re: Doom floor texturing mikro Jan,22.2013-13:36
              Re: Doom floor texturing mikro Jan,22.2013-13:37
                Re: Doom floor texturing dml Jan,22.2013-15:18
                  Re: Doom floor texturing mikro Jan,22.2013-16:22
                    Re: Doom floor texturing dml Jan,23.2013-00:55
                      Re: Doom floor texturing mikro Jan,23.2013-10:12
                        Re: Doom floor texturing dml Jan,23.2013-13:00
                        Re: Doom floor texturing Calimero Jan,24.2013-03:14
                  Re: Doom floor texturing ggn Jan,22.2013-16:41
                  Re: Doom floor texturing ggn Jan,22.2013-16:42
                    Re: Doom floor texturing dml Jan,23.2013-01:07
            Re: Doom floor texturing dml Feb,03.2013-20:23
              Re: Doom floor texturing mikro Feb,03.2013-22:07
          Re: Doom floor texturing dml Jan,23.2013-18:01
            Re: Doom floor texturing mikro Jan,23.2013-23:39


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