sakerdon

I can not find a technique for isolating, analysing and

processing part af a matrix, which would be NOT

rectangular. The idea is to make a sort of stained

glass, which would change it's shape. I'd like to

control this changes, let's say they should not be

It seems to be rather heavy task for CPU, but I hardly

2nd - process picture or movie "under"it - to apply

color and transparency variations according to areas on

Hello
I can not find a technique for isolating, analysing and 

processing part af a matrix, which would be NOT 

rectangular. The idea is to make a sort of stained 

glass, which would change it's shape. I'd like to 

control this changes, let's say they should not be 

random.
It seems to be rather heavy task for CPU, but I hardly 

imagine this effect in Open GL.
In fact there are 2 tasks:
1st - draw this stained glass shape.
2nd - process picture or movie "under"it - to apply 

color and transparency variations according to areas on 

stained-glass

i would use two layers for the same source : the top one with non rectangular holes using noise genrators on the alpha channel and applying shaders on the lower one. lots of fun stuff to do with it.

here is a short example that shows you the process, hoping it helps :

Quote: Onandoff wrote on Thu, 13 March 2008 12:24

----------------------------------------------------

> I can not find a technique for isolating, analysing and 

> processing part af a matrix, which would be NOT 

> rectangular. The idea is to make a sort of stained 

> glass, which would change it's shape. I'd like to 

> control this changes, let's say they should not be 

> It seems to be rather heavy task for CPU, but I hardly 

> 2nd - process picture or movie "under"it - to apply 

> color and transparency variations according to areas on 

Hi, i had similar ideas for a piece.
i would use two layers for the same source : the top one with non rectangular holes using noise genrators on the alpha channel and applying shaders on the lower one. lots of fun stuff to do with it.

Quote: Onandoff wrote on Thu, 13 March 2008 12:24
----------------------------------------------------
> Hello
> I can not find a technique for isolating, analysing and 
>
> processing part af a matrix, which would be NOT 
>
> rectangular. The idea is to make a sort of stained 
>
> glass, which would change it's shape. I'd like to 
>
> control this changes, let's say they should not be 
>
> random.
> It seems to be rather heavy task for CPU, but I hardly 
>
> imagine this effect in Open GL.
> In fact there are 2 tasks:
> 1st - draw this stained glass shape.
> 2nd - process picture or movie "under"it - to apply 
>
> color and transparency variations according to areas on 
>
> "upper" surface.
> Would anybody advise?
----------------------------------------------------


Thanks for the suggestion. I have some troubles with shadres - probably my videocard is old, or there is some dofference

between Mac and Windows shaders files. Strange, but brcosa almost does not work. I found that "mask" shapes would be more

interesting if bfg would be 3 dimensional (320 240 1).

But in fact with this patch I miss 2 things:

1. I can not control separate isoloted areas of "low" matrix. Let's say - the effect is applyed to the whole matrix.

2. still shapes look more or less as spots, but I've been thinking about those small fragments in stain glass (Notre Dame

Well. I think I should work on matrix analyser-reporter (sort of eye dropper + magic wand in Photoshop)

Thanks for drawing me to shaders and slabs - I have to try them more

Hello Karrrlo
Thanks for the suggestion. I have some troubles with shadres - probably my videocard is old, or there is some dofference 

between Mac and Windows shaders files. Strange, but brcosa almost does not work. I found that "mask" shapes would be more 

interesting if bfg would be 3 dimensional (320 240 1).
But in fact with this patch I miss 2 things:
1. I can not control separate isoloted areas of "low" matrix. Let's say - the effect is applyed to the whole matrix.
2. still shapes look more or less as spots, but I've been thinking about those small fragments in stain glass (Notre Dame 

Thanks for drawing me to shaders and slabs - I have to try them more
Alex
