An ideal diamond

[jessicap]

Video of an ideal diamond

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This is not a true diamond. The video is created by an optical modeling software called Povray. I wish I can have a diamond like this.

 

[WinkHPD]

I can not get it to play.

Wink

 

[jessicap]

I use realplayer to play it.

Here is a youtube version. The video lost some brilliance after youtube''s compression.

Youtube Link

 

[oldminer]

For the right amount of money, you can most certainly buy a diamond like the one in the video. Now, if you could make software which would spew out the actual product for free, that would be a real deal!

Here is an explanation of this software product: http://en.wikipedia.org/wiki/POV-Ray

 

[jessicap]

Model is created by someone else (http://donzoptix.co.uk/) It is a true optical model, so lighting condition, reflection and dispersion are all calculated. That''s how the video shows sparkles and fire.

The author provides the source file. I can certainly change the specs. I am a optical researcher with newly found love in diamond. It could be a fun project.

An optical diamond model needs much more specs than what a diamond certification provides. Neither the author nor I are diamond professionals. Some specs could be wrong.

Here are the specs used for this video. Any thoughts?

CrownHeight = Diameter * ( 16.2 / 100 );
GirdleDepth = Diameter * ( 01.0 / 100 );
PavyonDepth = Diameter * ( 43.1 / 100 );
OverallDepth = CrownHeight + GirdleDepth + PavyonDepth;
TableWidth = Diameter * ( 53.0 / 100 );

CrownBazlAng = 34.50;
CrownStarAng = 20.00;
(Author''s Note : Ideal = 15.00, unable to find exact specs for placing these facets)

CrnUpprGrdlAng = 39.22;
(Author''s note: Ideal = 42.00, unable to find exact specs for placing these facets)

GrdlAng = 90.00
(Jessica''s Note: 90 degree to the table)
PavLowaGrdlAng = 42.75
PavlAng = 40.75

 

[John P]

Date: 6/8/2009 11:10:12 AM
Author: jessicap

Here are the specs used for this video. Any thoughts?

CrownHeight = Diameter * ( 16.2 / 100 );
GirdleDepth = Diameter * ( 01.0 / 100 );
PavyonDepth = Diameter * ( 43.1 / 100 );
OverallDepth = CrownHeight + GirdleDepth + PavyonDepth;
TableWidth = Diameter * ( 53.0 / 100 );

CrownBazlAng = 34.50;
CrownStarAng = 20.00;
(Author's Note : Ideal = 15.00, unable to find exact specs for placing these facets)

CrnUpprGrdlAng = 39.22;
(Author's note: Ideal = 42.00, unable to find exact specs for placing these facets)

GrdlAng = 90.00
(Jessica's Note: 90 degree to the table)
PavLowaGrdlAng = 42.75
PavlAng = 40.75

Tolkowsky's diamond with a 1% girdle and extremely short halves & stars; influencing the size of the flashes seen in the simulation.

If you're interested in set of conventional/modern break facet angles you can use 41.85 LowGrdl and 23.00/40.6 CrownStar/UpprGrdl.

 

[whatmeworry]

nice video Jessica. It would be cool if you could post videos using different lighting conditions. What would you call the lighting in the first set of videos?

 

[jessicap]

The video is from the author''s website. I am running his code on my computer. It will be fun to change lighting, specs, or maybe put it into a setting

. I am sure it can be done. I saw some amazing images on the software webpage.

The rendering is really slow. I am only 33% done after 30 minutes. I really need a better computer for this.

 

[jessicap]

The author said he used a spot light and diffuse screen on the back and on bottom of the diamond. Is this the best lighting to show a diamond?

Date: 6/8/2009 2:13:31 PM
Author: whatmeworry
nice video Jessica. It would be cool if you could post videos using different lighting conditions. What would you call the lighting in the first set of videos?