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Sylvain PILLOT
aa95fe7c8b

3 weeks ago  

assetscg  3 weeks ago  
images  3 weeks ago  
src  3 weeks ago  
.gitignore  3 weeks ago  
CMakeLists.txt  3 weeks ago  
README.md  3 weeks ago  
build  3 weeks ago  
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README.md
A simple shader for AZUR aiming at computing the Mandelbrot and the Julia fractal sets
What is this addin doing ?
This small demo is based on Azur. It uses its ultra fast rendering pipeline with specific a specific high speed quadratic calculation algorithm written by Lephenixnoir a,d able to handle both :
 Mandelbrot's set calculations :
Z_(n+1) = Z_n^2 + C
withZ_0 = 0 + 0 i
andC
covering the complex plan  Julia's set calculations :
Z_(n+1) = Z_n^2 + C
withC = A + B i
andZ_n
covering the complex plan
Both Mandelbrot  named as per Benoît MANDELBROT (19242010)  and Julia  named as per Gaston JULIA (18931978)  fractals are based on the convergence determination of the equation Z_(n+1) = Z_n^2 + C
.
What can we do ?
Control keys are :

[EXIT] to leave to the Operating System

[F1] to [F4] to show/switch off some informations on the screen :
 [F1] : hide everything
 [F2] : minimal output FPS + rendering time
 [F3] : detailed update/rendering time
 [F4] : memory usage

[F5]/[F6] : switch fractal mode
 [F5] : set Mandelbrot fractal
 [F6] : set Julia fractal

[OPTN]/[VARS] : switch resolution
 [OPTN] : set resolution scale to 1, the fractals are computed on a 396x224 grid
 [VARS] : set resolution scale to 0.5 (2x2 pixels), the fractals are computed on a 198x112 grid (much faster but lower quality)
For the Julia set only :
 [SHIFT]+[Directional Cross] : change the value of the C value (
C = A + B i
) [SHIFT+LEFT] : A = A  0.002
 [SHIFT+RIGHT] : A = A + 0.002
 [SHIFT+DOWN] : B = B  0.002
 [SHIFT+UP] : B = B + 0.002
A and B are constrained in the range [2.000 .. 2.000]
If you have a running session of fxlink
:
 [7] to [9] to export the calculator screen to fxlink :
 [7] : take a screenshot
 [8] : start video output (not : this is just rendered in a SDL2 window, not recorded, OBS/ffmpeg may be your very best friends to do so)
 [9] : stop video output
Have fun !!!