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Full functional program for rendering Mandelbrot & Julia fractals with different exponents. After more than 20 years FlashMandel is developed and tested again on a real Amiga: Pegasos II G4()1GHz 2GB Ram - Radeon 9250 -AmigaOS4.1fe :-) FlashMandel uses handmade assembler routines for max speed, and this is it's main feature. With new implemented altivec routines, for altivec version, renderings are all near realtime! I think it's one of the fastest mandelbrot and julia sets rendering program ever seen on a single core cpu. Due it's development for AmigaOS it lacks of multiprocessing features. But once imlemented it can be adapted for sure to work on more cpu cores. It could be possible even a GPU port, but on my Pegasos II with a Radeon 9250 gfx card we have only OpenGL 1.3 compatibility so it's not possible to use GPU to speedup calcs :-( FlashMandelNG primary features are: Uses Reaction GUI, Arexx port, Localization, Arbitrary precision math with GMP Library and don't need any installer, just click 'n run! C and Asm sources are also included, you can recompile it just typing MAKE! It's faaast even on emulated Amigas and can render even with direct memory access (TURBO OPTION) ..under x86 emuation it's faster than many others x86 native fractal programs ;-) Saved pictures can be reloaded and further explored at all supported screen's resolutions. It's really cool and totally free ;-) Additional developing notes: FlasdhMandelNG is developed with GCC 8.4.0 under Pegasos II and AmigaOS 4.1fe. Altivec code was firstly developed and tested under Powermac G5 Quad hardware with MacOSX Leopard 10.5.8 OS and XCode 3 IDE && Ubuntu Mate 16.04 LinuxPPC OS and CodeBlocks IDE. ..Now I can test it directly on my Pegasos II ;-) Altivec code is the most optimized ever seen and can be used as good programmig guide. Many many thanks and greetings to my friend Edgar Schwan, FlashMandel CoDeveloper, for his great efforts in Localization, Arexx and Reaction integration. In archive we have two binaries: 1) FlashMandelNG_OS4 -> critical routines are written in handmade assembler for max speed on powerpc cpus 2) FlashMandelNG_OS4_altivec -> critical routines are written in C but with Altivec directives, processing 4 pixels per time! I'd like to add another binary for Tabor ans its SPE unit, for now I could not with it due GCC v8 incompatibilities with SPE code; ..maybe in the next release we got it! ..so what version is the faster one? On a G4 latest FlashMandelNG Altivec versions are about 3x faster than FPU version because it processes 4 pixels per time! ..but it's also less accurate due Float32 single precision calculations (limited by hardware) vs Float64 FPU doubles, so for deep zooms you need to switch sooner to high precision math. About precision one on main features of FlashMandel is the ability to use arbitrary precision math. To archieve this I used GMP library, Edgar did a great jb porting it from linux sources ..and now we have it also on Amiga systems :-) FlashMandelNG_OS4 is Giftware, If you like it please sent me nice goodies ..An email or common postcard is ok too! :-) It's possible to include it in magazines and CDs, if so please let me to have a free copy ;-) History: New in 3.1 Implemented Histogram coloring algorithm as currently decribed on wikipedia, now you can display a wider range of colors at same time. Recoded a lot of stuff following the current best "C Programming practices", i.e. no more use of global vars for inner functions. Fixed still some serious bugs, this update is a "must have". New in 3.0 Finally Reaction GUI is fully reimplemented, Edgar did really a superb work about this! I reworked also color remapping to gave some nice alternative, i.e. try GUI remapping. A lot of bugs were fixed some of them really dirty, I have also cleanup the code and gained some small speedup! New in 2.9 Now Altivec C routines uses full intrinsics, generated code should be very mear to full handmade asm. Small bugfixes and code cleanup. New in 2.8 These are last days of COVID-19 quarantine in Italy, next week I'll come back to my daily work, ..so I decided to try to unlock once for all full potential of Altivec vector unit and... I did it! :-) Now FlashMandelNG processes 4 pixels per time in the altivec version and it's nearly realtime for zooms with low/mid iterations. One of the most important issues was how to control Altivec power without loosing speed. So I took a challenge vs myself and I won it! The my Altivec algorithm is fastest ever seen, preserving full power and using a smart and efficient control for results! :-) Altivec version speeded up to 3x!! Have fun! New in v2.7 Minor speed improvements, I think to have reached tha max possibile performances on a G4. Only Altivec code can be highly speedup until to 4x, I'm working on it! Fixed running multiple instances of FlashMandel. Now only RTG screens are supported. Recompiled with GCC 8.4.0 and latest adtools. Various minor bugfixes and improvements. New in v2.6 Raised up GMP Library to actual latest version 6.2.0 (Edgar Schwan) Implemented periodicity checking to speed up renderig in black areas (Mandelbrot set). Speeded up a bit Altivec version, we still calc one pixel per time, I'd like to do 4 pixels per time using full Altivec power. Bugfixed rendering Z^n+C with of power set to 16 or more. Raised max iterations to 2^31-1. Fixed Load and Save pictures. Removed all debug symbols. New in v2.5 Due Covid19 virus in few weeks I did what I used to do in years due my lack of time.. Finally I have implemented GMP Library numeric support. Now you can zoom into Mandelbrot and Julia sets until 4096 precision's bits are saturated. On current Amiga generations maybe you need to live for 500 years to saturate all precision bits.. Eventually I can improve precision bits even furter :-) I changed a bit the main recursion algorithm and now calculations are about 10% faster! I discovered and fixed some other annoyng bugs, at this time only the Arexx and Reaction code parts and needs to be revisioned, all other code is all updated. At this time Reaction GUI isn't implemented because it was developed with Reactor Tool. Sadly Reactor doesn't support PowerPc but only 68k, so object file generated can't be linked with other sources and than GUI fallback to system GadTools. If there will be ever a new release of Reactor with PPC/OS4 support I'll be happy to reintroduce Reaction GUI and give again to FlashMandel the right look! I decided also to renew iff chunk format of saved pictures, so now you can't load old fractals and continue zooming inside. New in v2.3 Old heavy bug fixed - if Flashmandel didn't found a locale catalog crashed at startup Other fixes and little improvements applied New in v2.2 Now finally with a real Amiga and sadly in Covid-19 era in Italy, I had a lot cpu power, and a lot of time, to test and fully bugfix and cleanup nearly all the code. Lowered resolution of all pictures to 1280x720 to reduce archive size, old pictures are incompatible to this new version. Added some new palettes and changed default one. Reviewed some Arexx scripts. Refreshed english docs. New in v2.1 Partial MorphOS compatibility via OS4EMU - Load and save didn't work Reworked and eliminated all pre AGA stuff. Now we have 3 different binaries, normal GCC code, Altivec code and New PowerPC handmade asm version. Added DUTCH catalog language - thanks to Bennymee for translation Minor fixes and changes. New in v2.0 (Re)Enabled AREXX support (Please download and install AWNP_2-54.lha archive from Aminet to let it run) Fixed tooltypes To Do: AmigaOne Tabor A1222 specific SPE version Add 24 bit screens Fix/Improve AREXX Scripts/Benchmarks "Bottomless wonders spring from simple rules, which are repeated without end." cit. Benoit Mandelbrot Enjoy, Amiga Rulez!
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