Von „http://www.julian-fietkau.de/povray_voxel_mandelbulb“

Voxelbasiertes Mandelbulb in POV-Ray



Voxelbasiertes Mandelbulb in POV-Ray

Hierbei handelt es sich um ein mit POV-Ray erstelltes Rendervideo eines in einem 1024x1024x1024 großen Voxelgitter berechneten Mandelbulb der achten Potenz, wie erstmals auf Skytopia beschrieben.

Gerendert in 640x480, 24 FPS, mit einer Kombination aus Raytracing (zwei Lichtquellen) und Radiosity.

Aus ästhetischer Sicht ist dieses Video nicht revolutionär. Die fraktale Struktur ist aufgrund der relativ geringen Voxelzahl nicht sehr gut erkennbar. Für mich lief diese Idee unter "I must climb it because it is there". ;)

Für spannendere und wahrhaft atemberaubende Mandelbulb-Videos verweise ich auf die Arbeit von Iñigo Quílez. Ebenfalls sehenswert ist, wie Cyril Crassin Vergleichbares in Echtzeit (!) mit CUDA berechnet.



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Ausführliche Beispiele gibt es bei Daring Fireball.
jhtrico1850 (via YouTube)
2010-07-24 03:20:37

Looks like Kush.

d3tach3d (via YouTube)
2011-01-01 13:02:44

I made one of those using the shovel in minecraft. ;)

pathfinderTV1 (via YouTube)
2011-03-26 19:07:19

the future of gaming? I think so! The resolution will improve with time. Atom based solutions for 3d graphics is the future for unlimited detail. Polygons is not! :)

TheRealNici (via YouTube)
2011-05-16 00:32:10

@pathfinderTV1 The Question is "Do we need more detail". People who hype voxel based graphics for gaming don't get that the biggest problem these days is not the rendering capabilities. A very important problem is the fact that no matter how much detail you can display, you need to create it first. And most games these days lack of good character design and interaction with the player. In the end, you'll be just staring at a square and will hear the speakers sound. That's not enough interaction.

KradYsuom (via YouTube)
2011-07-10 05:43:05

@TheRealNici It's not as much that Unlimited Detail / Voxels can provide an amazing amount of detail (because you can make each point as small as you want) as it is you can do this with very little proccessing power. With polygons, the system has to display every polygon in an area (regardless of if you can see it) and depending on the detail this number can become quite high With Unlimited Detail, it only displays what you see and only with the number of pixels you have sorry if im unclear

XxD1EAN0TH3RD4YxX (via YouTube)
2011-07-17 10:36:11

ATOMS in games? Shows how far we've come since the 80s when a line and a dot floating across the screen was considered high tech.

DejaVoodooDoll (via YouTube)
2011-08-02 21:35:14


Hiding unseen polygons has been a feature in home consoles since at least the Dreamcast...

Voxels have their own handicaps. While you can create detailed landscapes easily enough, animating them is nearly impossible.

KradYsuom (via YouTube)
2011-08-03 00:35:31

@DejaVoodooDoll Animation will come eventually, it's not impossible; just currently difficult and probably hard to understand especially since no one (that I know of) has done it before. A long time ago, the only animation we had was swapping sprites at regular intervals to imitate realistic movement. Now we have programs that can procedurally create their own animations and textures. The statement that science fiction now is tomorrow's fact has been proven. We even made a TIE fighter engine

thesiriusadam (via YouTube)
2011-08-03 05:11:38

@KradYsuom tell me more about this TIE fighter engine. :P

BrokenHaiku (via YouTube)
2011-08-03 16:47:24

@pathfinderTV1 It looks absolutely lovely from a distance. But do remember that voxel objects require heaps of memory and is bloody hard to animate. Not to mention how much more work it requires to create the objects from scratch.