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Re: Sea Of Colour Update
Posted by: evil Jul,30.2015-16:52 

I know some coders have figured out everything, but should I really explain and spoil every part?

I can tell you this without any major spoilers;

- There is no video streaming from harddrive

- The intro/endtro animations are both in memory when playing. The displayer uses up 88% CPU (273 scanlines + syncline = 274/313 = 0.88)

- The audio buffer refills between effects, it doesn't stream during overscan/hardsync. The buffer is 1.5MB large so approx 1 minute demo can run between two refills

- The last effect is a mix of animation and realtime - the cube is obviously not realtime rasterized. It's a 450kbyte animation with 1 byte/texel. The truecolour RGB alpha blending is realtime though, the background is 128 colours and the alpha have 96 levels of transparency plus overflow for both negative and positive brightness

- To be able to fade the dual-frame MPP pictures by Templeton (the pics uses 0.51MB more data on disk so you can add that amount to the "non effect" datas) we need to pre-calculate over 0.8MB of colours before each pic is shown. That's the reason why the intro/endtro animations are not faded, not enough memory to precalc all those colours there


As for the rest of the demo, it's quite normal demo-coding stuff.

--
Anders Eriksson
ae@dhs.nu







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Topic Posted by  Date 
Sea of Colour bear Jul,06.2015-21:43
  Re: Sea of Colour evil Jul,06.2015-23:10
    Re: Sea of Colour bear Jul,08.2015-16:33
      Sea Of Colour Update evil Jul,10.2015-20:05
        Re: Sea Of Colour Update Oldskool Jul,13.2015-12:15
          Re: Sea Of Colour Update ggn Jul,13.2015-13:07
            Re: Sea Of Colour Update Oldskool Jul,13.2015-13:50
              Re: Sea Of Colour Update Oldskool Jul,13.2015-19:02
                Re: Sea Of Colour Update evil Jul,13.2015-23:31
                  Re: Sea Of Colour Update dml Jul,14.2015-11:31
                    Re: Sea Of Colour Update evil Jul,14.2015-21:35
                      Re: Sea Of Colour Update dml Jul,18.2015-11:57
                        Re: Sea Of Colour Update evil Jul,18.2015-12:27
                  Re: Sea Of Colour Update Oldskool Jul,16.2015-10:13
                    Re: Sea Of Colour Update calimero Jul,29.2015-18:36
                      Re: Sea Of Colour Update s_t_s Jul,30.2015-08:41
                      Re: Sea Of Colour Update evil Jul,30.2015-09:12
                        Re: Sea Of Colour Update calimero Jul,30.2015-13:49
                          Re: Sea Of Colour Update evil Jul,30.2015-16:52
                            Re: Sea Of Colour Update ggn Jul,30.2015-20:25
                              Re: Sea Of Colour Update s_t_s Jul,30.2015-22:13
                                Re: Sea Of Colour Update calimero Jul,31.2015-08:31
            Re: Sea Of Colour Update Troed Aug,18.2015-12:53
              Re: Sea Of Colour Update ggn Aug,19.2015-00:36
                Re: Sea Of Colour Update Troed Aug,19.2015-16:19
                  Re: Sea Of Colour Update evil Aug,19.2015-17:57
  Re: Sea of Colour CiH Jul,18.2015-11:42


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