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Welcome to Fractal Forums > Fractal Art > Images Showcase (Rate My Fractal) > New Rome (Mandelbox)
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Author Topic: New Rome (Mandelbox)  (Read 4122 times)
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Tglad
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« Reply #15 on: April 18, 2010, 02:04:13 AM »
Why are these areas so dark?
You would expect them to get a lot of surrounding light wouldn't you?

* test.jpg (126.35 KB, 640x482 - viewed 209 times.)
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« Reply #16 on: April 18, 2010, 02:46:06 AM »
Quote from: David Makin on April 13, 2010, 03:44:17 AM
I don't normally make the full-size versions available  wink
So here's a taster, 640*480 detail from the original unresized 3840*2880 rrender:
     /gallery/2/141_13_04_10_3_39_45.jpeg
Of course a 40" print would be from a 12000*9000 render minimum,
but I wouldn't increase the detail level any further.

Thanks for the closer peek.  Now I know where all of those LEGOs went to.    cheesy
 
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David Makin
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« Reply #17 on: April 18, 2010, 02:49:38 PM »
The rectangular and spherical AO methods produce results very close to IQ's distance field method:

"Ractangular AO"



"Spherical AO"
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« Reply #18 on: April 18, 2010, 03:06:46 PM »
Sorry - I should have posted the parameters too smiley

Ignore any warnings/errors - these will render with the latest released version of wip3D5:

http://www.fractalgallery.co.uk/MMFwip3D.zip

As always if downloading the above make sure the zip file is 95095 bytes, if it's smaller then you need to clear the older version from your internet cache.

"Rectangular AO"

Code:
RectangularAO {
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}

"Spherical AO"

Code:
SphericalAO {
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}
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The meaning and purpose of life is to give life purpose and meaning.

http://www.fractalgallery.co.uk/
"Makin' Magic Music" on Jango
knighty
Fractal Iambus
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Posts: 819
« Reply #19 on: April 18, 2010, 07:03:50 PM »
Quote from: Tglad on April 18, 2010, 02:04:13 AM
Why are these areas so dark?
You would expect them to get a lot of surrounding light wouldn't you?
Yes!
There are two reasons:
- Delta was too big.
- Sampling is done along the normal vector.

The formula I used gives generally good results with non fractal distance fields but don't seem to be good for fractals. I'm trying to find better formulas. hurt
Here is the result i got while modifying the original formula:

Humm... not perfect undecided

Quote from: David Makin on April 18, 2010, 02:49:38 PM
The rectangular and spherical AO methods produce results very close to IQ's distance field method:
It is difficult to see the difference at first. In the picture above you can see the darkening at the corners which can't be obtained using rectangular AO.
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bib
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At the borders...


100008697663777 @bib993
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« Reply #20 on: April 18, 2010, 10:03:29 PM »
Quote from: David Makin on April 18, 2010, 03:06:46 PM

http://www.fractalgallery.co.uk/MMFwip3D.zip


I had not been fractaling very intensively these days and I discover with pleasure your latest update. I am very enthusiastic about the work done on lighting.
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David Makin
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« Reply #21 on: April 18, 2010, 10:54:41 PM »
Quote from: bib on April 18, 2010, 10:03:29 PM
Quote from: David Makin on April 18, 2010, 03:06:46 PM

http://www.fractalgallery.co.uk/MMFwip3D.zip


I had not been fractaling very intensively these days and I discover with pleasure your latest update. I am very enthusiastic about the work done on lighting.

I think you'll find the best improvement is the rendering of the Mandelboxes/Juliaboxes when you use the analytical DE (with "Autobox" enabled).
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The meaning and purpose of life is to give life purpose and meaning.

http://www.fractalgallery.co.uk/
"Makin' Magic Music" on Jango
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