n-dimensional raytracer

[Thorsten Kiefer]

Hi,
this is an example program :

https://github.com/toki78/RayMultiDim.git
https://github.com/toki78/CPURootBeer.git

Needs at least an 8-core cpu.

Best Regards
Thorsten

 

[Lew]

this is an example program :

For maximum clarity, Usenet posts should have all relevant information in
the body of the post proper.

https://github.com/******/RayMultiDim.git
https://github.com/******/CPURootBeer.git

Needs at least an 8-core cpu [sic].

Well, I'm sure you are very proud.

What is this, is it even in Java, and why should we care?

I am rather interested in how you determined that this program
(it is a program, right?) needs an eight-core CPU.

Care to share?

But don't share here if the program isn't written in Java.

 

[Joerg Meier]

this is an example program :

For maximum clarity, Usenet posts should have all relevant information in
the body of the post proper.

https://github.com/******/RayMultiDim.git
https://github.com/******/CPURootBeer.git
Needs at least an 8-core cpu [sic].

Well, I'm sure you are very proud.

What is this, is it even in Java, and why should we care?

I am rather interested in how you determined that this program
(it is a program, right?) needs an eight-core CPU.

Care to share?

But don't share here if the program isn't written in Java.

It's Java, albeit pretty horrible Java - Exceptions are quietly swallowed,
everything is public, no comments, and the parts of the program I looked at
look like one giant race condition, where bugs are treated with the good
old "sleep and retry in a moment" method.

I could also find no indication that this program would need a special kind
of CPU, other than it spawning 16 ThreadS. My best guess is that this is a
port of a C program by someone who doesn't understand Java very well yet,
and probably never programmed for a living.

Liebe Gruesse,
Joerg

 

[Lew]

this is an example program :

For maximum clarity, Usenet posts should have all relevant information in
the body of the post proper.

https://github.com/******/RayMultiDim.git
https://github.com/******/CPURootBeer.git
Needs at least an 8-core cpu [sic].

Well, I'm sure you are very proud.

What is this, is it even in Java, and why should we care?

I am rather interested in how you determined that this program
(it is a program, right?) needs an eight-core CPU.

Care to share?

But don't share here if the program isn't written in Java.

It's Java, albeit pretty horrible Java - Exceptions are quietly swallowed,

Good news. Then it's on topic.

everything is public, no comments, and the parts of the program I looked at
look like one giant race condition, where bugs are treated with the good
old "sleep and retry in a moment" method.

I could also find no indication that this program would need a special kind
of CPU, other than it spawning 16 ThreadS. My best guess is that this is a
port of a C program by someone who doesn't understand Java very well yet,
and probably never programmed for a living.

So let's punt back to the OP: What would you like from us with regard to
your post?

Are you looking for comments? Advice?

 

[Thorsten Kiefer]

Am 01.01.2013 23:17, schrieb Lew:

Thorsten Kiefer wrote:
this is an example program :
For maximum clarity, Usenet posts should have all relevant information in
the body of the post proper.
https://github.com/******/RayMultiDim.git
https://github.com/******/CPURootBeer.git

Needs at least an 8-core cpu [sic].

Well, I'm sure you are very proud.

What is this, is it even in Java, and why should we care?

I am rather interested in how you determined that this program
(it is a program, right?) needs an eight-core CPU.

Care to share?

But don't share here if the program isn't written in Java.

It's Java, albeit pretty horrible Java - Exceptions are quietly swallowed,

Good news. Then it's on topic.

everything is public, no comments, and the parts of the program I looked at
look like one giant race condition, where bugs are treated with the good
old "sleep and retry in a moment" method.

I could also find no indication that this program would need a special kind
of CPU, other than it spawning 16 ThreadS. My best guess is that this is a
port of a C program by someone who doesn't understand Java very well yet,
and probably never programmed for a living.

So let's punt back to the OP: What would you like from us with regard to
your post?

Are you looking for comments? Advice?

Yes, I would like some comments
The reason, why I said it needs an 8-core, is such that it renders in
realtime.

Regards
Thorsten

 

[Lew]

schrieb Lew:

Lew wrote:
Thorsten Kiefer wrote:
this is an example program :
For maximum clarity, Usenet posts should have all relevant information in
the body of the post proper.
https://github.com/******/RayMultiDim.git
https://github.com/******/CPURootBeer.git
Needs at least an 8-core cpu [sic].

[snip]

I am rather interested in how you determined that this program
(it is a program, right?) needs an eight-core CPU.

[snip]

It's Java, albeit pretty horrible Java - Exceptions are quietly swallowed,

Good news. Then it's on topic.

So let's punt back to the OP: What would you like from us with regard to
your post?
Are you looking for comments? Advice?

Yes, I would like some comments

Be careful what you wish for.

The reason, why I said it needs an 8-core, is such that it renders in
realtime.

How did you relate that to number of cores?

Your code needs an awful lot of work. You've got source that does nothing, Swing GUIs
started off the EDT, non-conventional variable names and indentation, and the issues Joerg
mentioned.

Check out the Java online tutorials at oracle.com and snoop around there for the Java
coding conventions.

If you make a request to the newsgroup, you have to actually state what the request is.

Thank you for responding to our questions.

 

[Arne Vajhøj]

Am 01.01.2013 23:17, schrieb Lew:

Lew wrote:
Thorsten Kiefer wrote:
Needs at least an 8-core cpu [sic].
I am rather interested in how you determined that this program
(it is a program, right?) needs an eight-core CPU.

The reason, why I said it needs an 8-core, is such that it renders in
realtime.

So it will render in realtime with 8 core no matter
the speed of those core or what ISA they are?

How do you achieve that in Java? Test on number
of cores?

Arne

 

[bob smith]

Hi,

this is an example program :



https://github.com/toki78/RayMultiDim.git

https://github.com/toki78/CPURootBeer.git



Needs at least an 8-core cpu.



Best Regards

Thorsten

If it is n-dimensional, what values of n make sense other than 3?

 

[Stefan Ram]

If it is n-dimensional, what values of n make sense other than 3?

»We demonstrate our method on scenes with a 3 to 5
dimensional space«

hachisuka08multidimensional.pdf

 

[Lew]

»We demonstrate our method on scenes with a 3 to 5
dimensional space«

hachisuka08multidimensional.pdf

We should google for this, eh?