MATHCOMP : Buddhabrot

[benny!]

I ran it for 24 hours and got a super smooth picture...

lol .. that's crazy. Hope the picture isn't burned into your screen now

[taj]

Another one left for 28 hours...

[mind]

well, my app seems popular.. its mad fun to run it for 20+ hours and check the results once in a while.. you get MAD smooth results

[taj]

Its very cool, any chance you could add zoom Mind? Yeah I know it takes even longer to draw but thats ok Ill leave it for a week to see the heart pendant close up and the teddy bear above the heart.

Its worth ++++++++karma :-)

[mind]

Its very cool, any chance you could add zoom Mind? Yeah I know it takes even longer to draw but thats ok Ill leave it for a week to see the heart pendant close up and the teddy bear above the heart.

Its worth ++++++++karma :-)

lol.. i'd have to read up on that first.. i never wrote a madelbrot zoomer.. i'll see what i can do.. my gf is pissed at me though, since i've been sitting at her comp almost 24/7, writing that buddha.. rofl..  i was thinking about adding a few sliders to modify the image region, might aswell add zoom..

i did some reading up on the metropolis-hastings algorithm.. seems that by using it you can vastly improve rendering speed on highly zoomed areas of most fractals..

[mind]

and btw, whats that? like 20 threshold and a low bail-out? somewhere around the 5-15 region? not that the bail-out makes THAT much of a difference..

[Jim]

Try multithreading too if you have a HT processor or Core 2 - since it's all CPU and no IO it'll go massively faster.

Jim

[mind]

Try multithreading too if you have a HT processor or Core 2 - since it's all CPU and no IO it'll go massively faster.

Jim

i wrote this on my gf's 700Mhz laptop, with no HT capabilities.. and my comp aint much better lol.. pIII-900 For the lose..

but, the code is up there, feel free to upgrade it with HT or dualcore

[mind]

speaking of nothing, Taj you have msn? i have a pretty cool idea i'd like to discuss with you.. regarding texture generation for smaller prods, like 1k and 4k

[Jim]

I've been planning a multithreaded mandelbrot for some time - mostly as an example for this place. Ã, I did a very basic experiment on my HT CPU (2 threads generating 1/2 the set each) and got very nearly the optimum 2x speedup. Ã, That surprised me as I thought HT was a gimmick, but it's obvious for CPU-bound stuff, esp. floating point stuff, it's a big gain.

The plan is to have 2 or more worker threads that get given a square of the screen to generate. Ã, If it's more than a single thread should handle then it'll queue up sub-squares of that square for other threads to work on. Ã, There are some really cool estimates for which squares are 'complicated' and which are 'simple'. Ã, They probably apply to buddhabrot too.

Multithreading is going to be huge, especially as the number of cores goes from HT (1 core, multiple hardware threads) to Core Duo (2 core) and Core Quadro (4 core) to PS3 (about 12 cores!) Ã, to Mesh computing (unlimited cores scattered all over the world). To get the best performance on modern CPUs everything is going to be multithreaded. Ã, Intel keep sending me application notes on how it all works, if anyone's interested.

Jim

[taj]

speaking of nothing, Taj you have msn? i have a pretty cool idea i'd like to discuss with you.. regarding texture generation for smaller prods, like 1k and 4k

wroceng nick...try that

[taj]

Its very cool, any chance you could add zoom Mind? Yeah I know it takes even longer to draw but thats ok Ill leave it for a week to see the heart pendant close up and the teddy bear above the heart.

Its worth ++++++++karma :-)

lol.. i'd have to read up on that first.. i never wrote a madelbrot zoomer.. i'll see what i can do.. my gf is pissed at me though, since i've been sitting at her comp almost 24/7, writing that buddha.. rofl..  i was thinking about adding a few sliders to modify the image region, might aswell add zoom..

i did some reading up on the metropolis-hastings algorithm.. seems that by using it you can vastly improve rendering speed on highly zoomed areas of most fractals..

Mind,
zoom in this sense is the same thing as setting a new image region...so ok do what you were thinking!
Yeah metropolis is the way forward. I agree.

Lastly my seetings were threshold 9! everything else standard. I prefer your image to be honest but the egg shaped light is interesting in mine.

[mind]

Its very cool, any chance you could add zoom Mind? Yeah I know it takes even longer to draw but thats ok Ill leave it for a week to see the heart pendant close up and the teddy bear above the heart.

Its worth ++++++++karma :-)

lol.. i'd have to read up on that first.. i never wrote a madelbrot zoomer.. i'll see what i can do.. my gf is pissed at me though, since i've been sitting at her comp almost 24/7, writing that buddha.. rofl..  i was thinking about adding a few sliders to modify the image region, might aswell add zoom..

i did some reading up on the metropolis-hastings algorithm.. seems that by using it you can vastly improve rendering speed on highly zoomed areas of most fractals..

Mind,
zoom in this sense is the same thing as setting a new image region...so ok do what you were thinking!
Yeah metropolis is the way forward. I agree.

Lastly my seetings were threshold 9! everything else standard. I prefer your image to be honest but the egg shaped light is interesting in mine.

download the latest verison.. run it ar 3 threshold and 3 bailout.. for a few hours.. MAD cool..

anyways, i said MSN not AIM.. AIM is gay.. rofl.. download msn 7.5 and add me, BWAHAHAHAHA!! email gone!! no spam bots gonna add me ..

we'll talk

[taj]

That is msn, but yeah ok I added you...

[mind]

ahh, thought it was aim.. since wroceng nick whatever looked like an aim screen name.. n eed mail addys to add ppl on msn

[lilw4t3rdr0p]

I like it. It looks like some sort of thing pressing through the light to free itself. Does that make sense? Anyway, it is stunning!

[mind]

I like it. It looks like some sort of thing pressing through the light to free itself. Does that make sense? Anyway, it is stunning!

made no sense at all, but glad you liked it

[lilw4t3rdr0p]

It was a vision. LOL Nevermind. Thanks

[Merick]

I was going through some of the comp entries that show up randomly on the front page and decided to check this one out, but when i hit the render button it pops up a message box with "range check error"

[Shockwave]

Maybe Mind can cast a bit of light on the problem