kiwilove Posted April 18, 2018 Share Posted April 18, 2018 I'm no expert nor regular user of Rasterconverter - and would like to comment the following... Because of the limited colours and resolution of the Atari graphics mode - if you start with pictures which are close to this already - you should have greater success - so to speak? And it is when you are using normal pictures/photographs as such - it is so much harder for any decent result to happen - without any of usual faults Rasterconverter ends up showing - those visible horizontal bands. People are only posting their successful conversions here - so you don't see the various failures that typically happen. It is an amazing program - when you see what it can do - as in the various examples posted. It is very much a lottery as to what picture ends up looking great - and usually you do see it pretty quickly - that you only have it running over a long period of time - just so as for it to clean up on some important detail here and there. The good thing of course - is that you can have it doing this in the background - while you are doing other things on your laptop? And you can even have up to 3? windows of Rasterconverter running at the same time - if you wish to, if your laptop can handle it? Harvey Quote Link to comment Share on other sites More sharing options...
Rybags Posted April 18, 2018 Share Posted April 18, 2018 Certain pic types work better than others. If the detail and colour changes are more oriented towards vertically, e.g. graduated mountain ranges in a sunset then it deals with it better than something like a rainforest on the left with waterfall in the middle and beach on the right. High dynamic range should be better than low, ie - if the luminances are spread about rather than close shades. When running the program, the destination shows a "better than best case scenario" - so you know what you'll end up with will resemble it in some way but not be as good. So if the destination looks crap it's a quick and easy way to know to just quit and either do some preprocessing of the image or try different dithering settings. The program allows selecting how many threads to run. You'd probably get better throughput by single-streaming images rather than doing multiples at once though that said the nature of the thing is that you quit when a pic looks good and optionally resume processing after testing it out. To that end, then you may as well parallel process. I think you'd need to make extra copies of the RC program directory as it saves work files. Alternatively you might be able to just use shortcuts with different startup directories - unsure, the program's sufficiently small to just have multiple copies of it. # of threads - if you have e.g. a quad-core i7 with hyperthreading enabled then in theory you'd get best throughput on a single job by running 8 threads, though it'd bog down anything else trying to run on the machine. I've found in such cases (like MediaCoder video encoding), run with all but one or two virtual cores active or enable the affinity to all but one or 2 depending on the program. Quote Link to comment Share on other sites More sharing options...
Irgendwer Posted April 18, 2018 Share Posted April 18, 2018 ... ... Round 2 FIGHT! Bruce.xex 18 Quote Link to comment Share on other sites More sharing options...
Gunstar Posted May 1, 2018 Share Posted May 1, 2018 Breaking Beyond. 49 colors. Relativity Of Gravity. 70 colors. Spring Loaded! 49 colors. 64 Galaxie 500. 54 colors. BreakingBeyond.xex RelativityOfGravity.xex SpringLoaded!.xex 64G500.xex 13 Quote Link to comment Share on other sites More sharing options...
Gunstar Posted May 1, 2018 Share Posted May 1, 2018 Blue Brook Falls. 72 colors. Rifle Creek Docks. 46 colors. BlueBrookFalls.xex RifleCreekDocks.xex 17 Quote Link to comment Share on other sites More sharing options...
Gunstar Posted May 2, 2018 Share Posted May 2, 2018 I've been doing some "spring cleaning" of late with my Rastaconverter file folders, dusting off some pictures I never got around to converting, a final judgement of some images I was never satisfied enough with to release before, then keeping or disposing of them and lots of old source images. The recent images I've posted are new conversions, from old sources, and here are a couple of old conversions I sat on, not satisfied enough to release before, but what the hell. At least I don't think I posted these before...sorry if I have. Battle For Sansara (Andromeda). 32 colors. Ancient Spires. 46 colors. BattleforSansara.xex AncientSpires.xex 10 Quote Link to comment Share on other sites More sharing options...
SpikedRN Posted May 9, 2018 Share Posted May 9, 2018 Ciri from The Witcher III -- 175 million evaluations. The output looks fairly good on my PC, but the colors are very washed out on my NTSC 800xl. Maybe I'm not using the correct palette? SpikedRN_Witcher3_Ciri.xex 4 Quote Link to comment Share on other sites More sharing options...
Gury Posted May 10, 2018 Share Posted May 10, 2018 (edited) At age of 93 Miki Muster, one of the greatest cartoon and comics artists from Slovenia, died. He is well known of adventures of Zvitorepec, Trdonja and Lakotnik. Many of us enjoyed and still do enjoy reading these comics and remember them well from our childhood. Link to the sad news. Here is original and converted pic of our heroes: mmztl01.xex Edited May 10, 2018 by Gury 6 Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted May 10, 2018 Share Posted May 10, 2018 (edited) Revisiting strong dithering (knoll, dither_val=8.0). I'm shooting for lighting versus detail. Would someone with real NTSC hardware try this and post comments? Thank you. If you wish to view with an Emulator try Atari800 using one of my palettes (see my sig) In Altirra I don't know if importing a palette is possible (I can't find the option). Select NTSC mode and in 'adjust colors' default XL, hue start -44, 24.1 degrees, and Saturation 30. a8isa1_lighthouse_2113179.xex Edited May 10, 2018 by a8isa1 10 Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted May 10, 2018 Share Posted May 10, 2018 This one worked very well. Slight Chess dither, dither_val=0.5, dither_rand=1.2. NTSC palette (see my sig). a8isa1_brick_lighthouse.xex 13 1 Quote Link to comment Share on other sites More sharing options...
SpikedRN Posted May 11, 2018 Share Posted May 11, 2018 Would someone with real NTSC hardware try this and post comments? Thank you. I'll give them a try later when I get a chance. I did a few images using your NTSC 30 saturation palette @a8isa1 Seeing how many colors I could get in one image. 135 million evals with NTSC palette. SpikedRN_color_gradient_135m.xex Another try at Ciri but using an NTSC palette this time. Skin tones look much better on my 800xl than the other one I did. SpikedRN_Witcher3_Ciri_NTSC.xex Here's one of Jupiter. 100M evals with laoo palette and knoll dither. Jupiter.100M.laoo.cie94.knoll.xex 6 Quote Link to comment Share on other sites More sharing options...
SpikedRN Posted May 11, 2018 Share Posted May 11, 2018 (edited) Here are some examples showing the output of different palettes using a common image as input. Using these should allow you to find a palette that most closely matches the actual output on real hardware. Common settings: ciede with no dithering. Source image Colors_ciede_altirra.xex Colors_ciede_atari800winplus.xex Colors_ciede_Default.xex Colors_ciede_g2f.xex Colors_ciede_jakub.xex Colors_ciede_laoo.xex Colors_ciede_NTSC.xex Colors_ciede_NTSC30.xex a8isa1 NTSC saturation 30 Colors_ciede_NTSC40.xex a8isa1 NTSC saturation 40 Colors_ciede_NTSC50.xex a8isa1 NTSC saturation 50 Colors_ciede_OlivierP.xex Colors_ciede_Real.xex Colors_ciede_Xformer.xex Edited May 11, 2018 by SpikedRN 6 Quote Link to comment Share on other sites More sharing options...
Gury Posted May 12, 2018 Share Posted May 12, 2018 Some more of Zvitorepec, Trdonja and Lakotnik: mmztl02.xex mmztl03.xex 11 Quote Link to comment Share on other sites More sharing options...
Gunstar Posted May 14, 2018 Share Posted May 14, 2018 Amber Afternoon. 43 colors. Covered Bridge. 60 colors. Rural Home. 69 colors. Amberafternoon.xex CoveredBridge.xex RuralHome.xex 13 Quote Link to comment Share on other sites More sharing options...
RAM Posted May 15, 2018 Share Posted May 15, 2018 It's always a good day when I visit AA and see Gunstar has posted some more pictures! 2 Quote Link to comment Share on other sites More sharing options...
Gunstar Posted May 18, 2018 Share Posted May 18, 2018 Find your beach. Ocean Cave. 65 colors. OceanCave.xex 26 Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted May 18, 2018 Share Posted May 18, 2018 Find your beach. Ocean Cave. 65 colors. Another favorite! Thanks! 1 Quote Link to comment Share on other sites More sharing options...
pirx Posted May 18, 2018 Share Posted May 18, 2018 (edited) Find your beach. Ocean Cave. 65 colors. this pic is almost gfx compo quality. kudos!!! the previous set with rural homes kixx ass as well. basically perfect use of the technique. Edited May 18, 2018 by pirx 2 Quote Link to comment Share on other sites More sharing options...
Rybags Posted May 18, 2018 Share Posted May 18, 2018 In terms of source material definitely not the best picture but in terms of technical compatibility with what RC is capable of and producing a very good result, near unmatched. 1 Quote Link to comment Share on other sites More sharing options...
Gunstar Posted May 18, 2018 Share Posted May 18, 2018 Source material makes a huge difference depending on what it is. Ocean Cave is from a photograph, the houses and bridge were from paintings.The source image medium has a huge effect on the final outcome.Photos are much easier to get good results than artistic renderings. Quote Link to comment Share on other sites More sharing options...
Gunstar Posted May 18, 2018 Share Posted May 18, 2018 this pic is almost gfx compo quality. kudos!!! the previous set with rural homes kixx ass as well. basically perfect use of the technique. Either way, a compliment to be sure, but when you say "compo" I'm not sure if you are referring to a "competition" or a "composition." Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted May 20, 2018 Share Posted May 20, 2018 This one worked very well. Slight Chess dither, dither_val=0.5, dither_rand=1.2. a8isa1_brick_lighthouse.png NTSC palette (see my sig). PAL version For intended saturation in Altirra bump it to 45 or in Atari800 use the palette in my sig. a8isa1_brick_lighthouse_PAL.xex 9 Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted May 20, 2018 Share Posted May 20, 2018 Ocean cave... first I thought its the source gif like Pic. Awesome. Quote Link to comment Share on other sites More sharing options...
Gunstar Posted May 21, 2018 Share Posted May 21, 2018 (edited) This one I forgot about and let it run too long, so it has a small line-segment-error (when viewed on a real Atari), but it's small and off to the side, so I didn't feel like re-doing it. Also the first attempt, so it's not as good as it might be, but I think it's good enough. Atari Fuji. 88 colors. AtariFuji.xex Edited May 21, 2018 by Gunstar 6 Quote Link to comment Share on other sites More sharing options...
Rybags Posted May 21, 2018 Share Posted May 21, 2018 Nice but too easy for RC - the real challenge would be to do the colour graduations as diagonals and see how it handles that. 1 Quote Link to comment Share on other sites More sharing options...
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