SpyRoX

I'm re-programming (restyling) a theather show for children, Farfalle/Butterflies of the italian TPO company, using a pc connected to a sensitive carpet with 12x9 pressure sensors, a dozen of proximity sensors, a infrared camera and 3 videoprojectors to create a immersive ambient.

I've noticed that a texture created with the "prepend texture" message has a lower quality than one created by a jit.gl.texture (with the same image). I have to read the same image at the double of resolution (and more) to have the same quality.

With the "prepend texture" message I can delete the texture from the video memory with "deletetexture" message, how can I delete the jit.gl.texture memory? Only deleting "physically" the object?

How can I reproduce the "lighten" and "screen" layer's filters normally used in photo-editing software? I use many GL layers with blend_enable activated.

In a scene I have 48 "jit.gl.gridshape @shape plane dim 2 2" with texture (butterflies) moving around the screens with many many "drunk", "scale", "rotate", "line", etc. The movements slow down (low fps) but the cpu's graphic in the Task Manager show the cpu "relaxing".

Less GL-objects -> more fps and the cpu work more...

Why the cpu don't work well? It's a graphic card problem? I use two Radeon X1300 and a Core Duo 2 cpu.

Should be better with a javascript's programming?

When I have the 3 windows in fullscreen mode in the 3 monitors and I resize the patch's windows, the borders make "garbage lines" and the windows don't resize really. I have to use the "window size xxx yyy, window exec" message or disable the fullscreen of the 3 screens.

-introduction-
I'm re-programming (restyling) a theather show for children, Farfalle/Butterflies of the italian TPO company, using a pc connected to a sensitive carpet with 12x9 pressure sensors, a dozen of proximity sensors, a infrared camera and 3 videoprojectors to create a immersive ambient.
I hope that someone can help me:

-question 1-
I've noticed that a texture created with the "prepend texture" message has a lower quality than one created by a jit.gl.texture (with the same image). I have to read the same image at the double of resolution (and more) to have the same quality.

-question 2-
With the "prepend texture" message I can delete the texture from the video memory with "deletetexture" message, how can I delete the jit.gl.texture memory? Only deleting "physically" the object?

-question 3-
How can I reproduce the "lighten" and "screen" layer's filters normally used in photo-editing software? I use many GL layers with blend_enable activated.

-question 4-
In a scene I have 48 "jit.gl.gridshape @shape plane dim 2 2" with texture (butterflies) moving around the screens with many many "drunk", "scale", "rotate", "line", etc. The movements slow down (low fps) but the cpu's graphic in the Task Manager show the cpu "relaxing".
Less GL-objects -> more fps and the cpu work more...
Why the cpu don't work well? It's a graphic card problem? I use two Radeon X1300 and a Core Duo 2 cpu.
Should be better with a javascript's programming?

-bug 1-
When I have the 3 windows in fullscreen mode in the 3 monitors and I resize the patch's windows, the borders make "garbage lines" and the windows don't resize really. I have to use the "window size xxx yyy, window exec" message or disable the fullscreen of the 3 screens.

prepend-texture-vs-jit-gl-texture

> I've noticed that a texture created with the "prepend texture" message has a lower quality than one created by a jit.gl.texture (with the same image). I have to read the same image at the double of resolution (and more) to have the same quality.

> With the "prepend texture" message I can delete the texture from the video memory with "deletetexture" message, how can I delete the jit.gl.texture memory? Only deleting "physically" the object?

Do you have an example patch? I'm not really sure what you're

describing here. Are these messages to jit.gl.render? I would

recommend using jit.gl.texture for anything texture related. Also,

why do you need to worry about deleting the texture's memory? Is

there some kind of memory related issue you're coming across?

> How can I reproduce the "lighten" and "screen" layer's filters normally used in photo-editing software? I use many GL layers with blend_enable activated.

You may want to render your scene to a texture and use jit.gl.slab to

> In a scene I have 48 "jit.gl.gridshape @shape plane dim 2 2" with texture (butterflies) moving around the screens with many many "drunk", "scale", "rotate", "line", etc. The movements slow down (low fps) but the cpu's graphic in the Task Manager show the cpu "relaxing".

> Less GL-objects -> more fps and the cpu work more...

> Why the cpu don't work well? It's a graphic card problem? I use two Radeon X1300 and a Core Duo 2 cpu.

> Should be better with a javascript's programming?

use jit.gl.gridshape @displaylist 1. That should speed things up

quite a bit. Also, if you can express the patterns controlling the

gridshapes in a matrix, you may want to look at using jit.gl.multiple

> When I have the 3 windows in fullscreen mode in the 3 monitors and I resize the patch's windows, the borders make "garbage lines" and the windows don't resize really. I have to use the "window size xxx yyy, window exec" message or disable the fullscreen of the 3 screens.

Again, do you have a simple example patch that reproduces this bug?

If its an interface bug, it's something that has probably been

> -question 1-
> I've noticed that a texture created with the "prepend texture" message has a lower quality than one created by a jit.gl.texture (with the same image). I have to read the same image at the double of resolution (and more) to have the same quality.

>
> -question 2-
> With the "prepend texture" message I can delete the texture from the video memory with "deletetexture" message, how can I delete the jit.gl.texture memory? Only deleting "physically" the object?
>

Do you have an example patch?  I'm not really sure what you're
describing here.  Are these messages to jit.gl.render?  I would
recommend using jit.gl.texture for anything texture related.  Also,
why do you need to worry about deleting the texture's memory?  Is
there some kind of memory related issue you're coming across?

> -question 3-
> How can I reproduce the "lighten" and "screen" layer's filters normally used in photo-editing software? I use many GL layers with blend_enable activated.
>

You may want to render your scene to a texture and use jit.gl.slab to
do some kind of scene post processing.

> -question 4-
> In a scene I have 48 "jit.gl.gridshape @shape plane dim 2 2" with texture (butterflies) moving around the screens with many many "drunk", "scale", "rotate", "line", etc. The movements slow down (low fps) but the cpu's graphic in the Task Manager show the cpu "relaxing".
> Less GL-objects -> more fps and the cpu work more...
> Why the cpu don't work well? It's a graphic card problem? I use two Radeon X1300 and a Core Duo 2 cpu.
> Should be better with a javascript's programming?
>

use jit.gl.gridshape @displaylist 1.  That should speed things up
quite a bit.  Also, if you can express the patterns controlling the
gridshapes in a matrix, you may want to look at using jit.gl.multiple
for controlling the 48 gridshapes.

> -bug 1-
> When I have the 3 windows in fullscreen mode in the 3 monitors and I resize the patch's windows, the borders make "garbage lines" and the windows don't resize really. I have to use the "window size xxx yyy, window exec" message or disable the fullscreen of the 3 screens.

Again, do you have a simple example patch that reproduces this bug?
If its an interface bug, it's something that has probably been
addressed in Max5.

> > I've noticed that a texture created with the "prepend texture" message has a lower quality than one created by a jit.gl.texture (with the same image). I have to read the same image at the double of resolution (and more) to have the same quality.

> > With the "prepend texture" message I can delete the texture from the video memory with "deletetexture" message, how can I delete the jit.gl.texture memory? Only deleting "physically" the object?

> Do you have an example patch? I'm not really sure what you're

> describing here. Are these messages to jit.gl.render? I would

> recommend using jit.gl.texture for anything texture related. Also,

> why do you need to worry about deleting the texture's memory? Is

> there some kind of memory related issue you're coming across?

This is a very simple patch, if you load the same texture, you can test the difference. It's better if you load images with thin orizzontally or verically lines.

I need to delete the texture's memory because the show is full of hi-res images and after a bit the max's window say "error: could not allocate matrix" "error: jit.gl.texture: unable to create cache: out of memory"

In the old version of the show I've used only "prepend texture" and with the "deletetexture" I've resolved the problem, loading and deleting texture during the show.

> > When I have the 3 windows in fullscreen mode in the 3 monitors and I resize the patch's windows, the borders make "garbage lines" and the windows don't resize really. I have to use the "window size xxx yyy, window exec" message or disable the fullscreen of the 3 screens.

> Again, do you have a simple example patch that reproduces this bug?

> If its an interface bug, it's something that has probably been

Yes, it's "only" a interface bug and only when I have all the 3 windows in fullscreen mode.

> > -question 1-
> > I've noticed that a texture created with the "prepend texture" message has a lower quality than one created by a jit.gl.texture (with the same image). I have to read the same image at the double of resolution (and more) to have the same quality.
> >
> > -question 2-
> > With the "prepend texture" message I can delete the texture from the video memory with "deletetexture" message, how can I delete the jit.gl.texture memory? Only deleting "physically" the object?
> >
>
>
> Do you have an example patch?  I'm not really sure what you're
> describing here.  Are these messages to jit.gl.render?  I would
> recommend using jit.gl.texture for anything texture related.  Also,
> why do you need to worry about deleting the texture's memory?  Is
> there some kind of memory related issue you're coming across?

I need to delete the texture's memory because the show is full of hi-res images and after a bit the max's window say "error: could not allocate matrix" "error: jit.gl.texture: unable to create cache: out of memory"
In the old version of the show I've used only "prepend texture" and with the "deletetexture" I've resolved the problem, loading and deleting texture during the show.

> > -bug 1-
> > When I have the 3 windows in fullscreen mode in the 3 monitors and I resize the patch's windows, the borders make "garbage lines" and the windows don't resize really. I have to use the "window size xxx yyy, window exec" message or disable the fullscreen of the 3 screens.
>
>
> Again, do you have a simple example patch that reproduces this bug?
> If its an interface bug, it's something that has probably been
> addressed in Max5.
>
> wes

Ok, so to explicity manage jit.gl.texture's allocated memory you may

want to use javascript to delete no longer used objects. I believe

there's a freepeer() method you can use to force freeing of a JS

Jitter object. Or you can send a texture object a very small matrix

and it should adapt its internal matrix to that size. BTW, what size

images are you using and how many? Sounds like you're really maxing

Ok, so to explicity manage jit.gl.texture's allocated memory you may
want to use javascript to delete no longer used objects.  I believe
there's a freepeer() method you can use to force freeing of a JS
Jitter object.  Or you can send a texture object a very small matrix
and it should adapt its internal matrix to that size.  BTW, what size
images are you using and how many?  Sounds like you're really maxing
out on your computer's memory.

>>How can I reproduce the "lighten" and "screen" layer's filters normally used in photo-editing software? I use many GL layers with blend_enable activated.

> You may want to render your scene to a texture and use jit.gl.slab to

...and take a look at the co.lighten.jxs and co.screen.jxs shader!

>
>>-question 3-
>>How can I reproduce the "lighten" and "screen" layer's filters normally used in photo-editing software? I use many GL layers with blend_enable activated.
>>
>
>
> You may want to render your scene to a texture and use jit.gl.slab to
> do some kind of scene post processing.
>

"prepend texture" vs "jit.gl.texture"