shihua

I recently studied an episode of Federico's tutorial and it was fantastic!

https://www.youtube.com/watch?v=cZvcDGbEbZk 

I made a little modification to his patch by replacing jit.bfg with jit.gl.model so that I could transform the 3D model into a point cloud.

But the result is not very satisfactory, because the point cloud splits into some rectangles according to the position of the vertices of the 3D model.

I want to make the point cloud shape smoother, and I have tried many methods without getting the desired result. Do you have any good suggestions?

image.png

Model into Particles.maxpat

Hello everyone.
I recently studied an episode of Federico's tutorial and it was fantastic!
https://www.youtube.com/watch?v=cZvcDGbEbZk 
I ... 

transform-3d-model-into-point-cloud

Transform 3D Model into Point Cloud

Lilian Ilodigwe

i'm having trouble getting a jit.multiple and its related object to show up at the right time. i have the bang set up so that the model itself is visible / enabled at a certain point in the song, and disabled before and after that part - but when the toggle for said part is triggered, nothing shows up , despite "enable" being toggled on. its only after the entire song is done that , when i disconnect the wire that goes from jit.multiple to jit.gl.mesh and attach to the model itself, then reattach it back to jit.gl.mesh again, that the multiple objects show up. i've checked my jit.gen to see if that's causing it, and no matter what values i change or remove there, the jit.multiple just fails to render until after the song is done and i move the wires a bit. is there something else i'm missing? could the mainmetro bang from the world be causing it to be coloured over? i've attached the edited more concise patcher version of my project below.

edit: it requires the corresponding .wav file from the audio content browser provided in max.

swirlingMultiples.maxpat

i'm having trouble getting a jit.multiple and its related object to show up at the right time. 

jit-multiple-jit-gl-modelmesh-animation-with-song-timing

Hi Lilian. Since your jit.gl.model that is feeding the jit.gl.mesh is @automatic 0, you need to send it a bang to tell it to output its geometry matrices to the jit.gl.mesh for rendering. You can do this either manually with a bang button, or automatically with a loadbang object (or in response to some other trigger in your patch).

that helped to fix the issue; i set that value to that model for something else since i duplicated it, but i didn't know that was what was blocking the render. thank you so much!

jit.multiple + jit.gl.model/mesh animation with song timing

Julien Bayle

Hi there, I noticed something very weird in my new jitter-based system, and it occured in different situations.

Candid description: sometimes, when I blend / mix 2 texture using kind of dodge blending, burn etc according to usual blend modes https://en.wikipedia.org/wiki/Blend_modes , I got some part of my texture which are plain black and whatever I can do ... it keeps black there. The only way to "remove" and reset the thing is going from floating mode to window mode for my world's window, for instance.

After that, whatever texture I send to the window ... the black area cannot be overlayed or "removed".

It occured with the basic dodge operation within a jit.gl.pix.
It also occured sometimes when I was using a .jxs based shader (temporal slide). etc.

1st question : is it sometimes someone already got ?
2nd question : can the cause come from float32 vs 64 things ? or something else ? what is that black area ?

years with max + jitter, first time I got that weird thing.

weird.png

Hi there, I noticed something very weird in my new jitter-based system, and it occured in different situations.
Candid description: ... 

weird-corrupted-like-textures-after-some-texture-operations

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Michael Grayum

Clamping values solved the problem.
For some weird reason, the jxs temporal slide shader doesn't work well with float (64 and 32 too I guess) and... for some WEIRD reason, I got negative values as a result.

gl_FragColor = clamp(mix(down, up, amount),0.,1.); solved everyting.

thanks for sharing, I'll investigate adding your fix to this shader.

Weird corrupted-like textures after some texture operations ...

vivamax

How can I view video from an ip camera using Max8 or jitter. I can currently view video from the camera using any browser and entering its ip address. It opens a small interface with several buttons and clicking on 'stream' will open a window that displays video. There are many low cost cameras that work like this and it would be very useful to be able to use them in Max. Any help? I have played with Syphon a few years ago. Is there not a simpler solution yet? 

How can I view video from an ip camera using Max8 or jitter. 

view-an-ip-camera

view an ip camera

Diemo Schwarz

the subject and picture say it all...   nonsense output, but no error message

jit.buffer-from-char-bug.maxpat

the subject and picture say it all...   nonsense output, but no error message
 

 


bug-jit-buffer-from-char-matrix-produces-garbled-buffer-content

jit.buffer~ only supports float32 type. This is mentioned in the object's reference.

understood.  An error message would be nice, though, instead of nonsense output.

bug: jit.buffer from char matrix produces garbled buffer content

chapelier fou

Disclaimer : video is not my usual domain, so I might lack some basic knowledge. 

But still,
I'm working on a project where I need no be able to cut video loops into 16 equal slices and access to these slices with accuracy. 
So I made a video loop displaying numbers from 0 to 16, equally spread in time to work it out. 
In my example, it displays numbers from 1 to 14, then pauses for 2 ticks. Why is this happening ?



Countdown 02.mp4

accessing-cues-using-position-to-jit-movie-weirdness

Your video example has 63 frames, this is frames and what they show :
in coll format, index is frame number, data is the number shown.
0, 1;
1, 1;
2, 1;
3, 1;
4, 2;
5, 2;
6, 2;
7, 2;
8, 3;
9, 3;
10, 3;
11, 3;
12, 4;
13, 4;
14, 4;
15, 4;
16, 5;
17, 5;
18, 5;
19, 5;
20, 6;
21, 6;
22, 6;
23, 6;
24, 7;
25, 7;
26, 7;
27, 7;
28, 8;
29, 8;
30, 8;
31, 8;
32, 9;
33, 9;
34, 9;
35, 10;
36, 10;
37, 10;
38, 10;
39, 11;
40, 11;
41, 11;
42, 11;
43, 12;
44, 12;
45, 12;
46, 12;
47, 13;
48, 13;
49, 13;
50, 13;
51, 14;
52, 14;
53, 14;
54, 14;
55, 15;
56, 15;
57, 15;
58, 15;
59, 16;
60, 16;
61, 16;
62, 16;
63, 16; (last frame light red color)
-------
You were better off with 16 frames and counter
recalling frame by frame.
your position float makes no sense at all.


But , that is advice for this specific case, where you display
pictures and not really video....
If you really were up to slice larger video into 16 equal slices,
then it is another story.


unfortunately viddll engine still has some issues with h264 files, especially accessing the final frames. The easy workaround, especially for your case usecase of accessing frames on demand, is to make sure that playback is stopped when accessing these frames. So add the argument @autostart 0 to your jit.movie object. Doing that allowed me to access all the frames using your technique.

At first, I don't think you're right, as [position] is a between 0. 1., normalized to the whole file length. It makes perfect sense to me (and works).

Then, yes, I plan to make this on video, with variable playing rates. Following patch appears to work quite nicely : 


cool, yes avf player doesn't seem to suffer the same h264 issues as viddll. another workaround for viddll is to load the last second or so into memory with loadram -1 message (ensuring you have enough cache to do that via the cache_size attribute)

Thanks @RobRamirez 
Good to know that it's a known issue. To be honest I have no idea why I should use viddll or avf, I don't even know what it is. I firstly tried viddll as as was working with .gif files, but I think that making .mov files instead of .gif files with a rate of 0 is perfectly viable for my use. 
Does loadram (not available with avl) really make a difference on a macbook pro with an SSD, with reading files less than 10MB ? 

You can probably find some references post related to my project FRGMENTS:
https://julienbayle.net/works/frgments/

Example: (actually not the best one as there are massive glitches, but we had a total control on retrieving THAT frame if we wanted that)
https://vimeo.com//242240872

We had shot videos of people rotating in the studio
We wanted to be able to retrieve EACH frame precisely.
Combination of loadram, hap etc gives us that.


Thanks Julien. 
Still a few things to figure out. For instance, [frame $1] works really really bad ([frame_true $1] on the other hand is accurate). 
What do you mean by "some references post related to my project FRGMENTS" ? 

Accessing cues using [position] to <jit.movie>  weirdness

pelo

I am trying to mimic the nice "tritone" color effect which is included in Adobe After effects. It colorises an image using a 3 color gradient.
See the attached image.

To colorize and image with two colors we simply can use the mix object.

Here is a patch, which is generating the 3 color gradient.
I am struggling with the jit.gl.pix. 
I think what I need is using the gradient as a lookup table not as an input.

Perhaps someone has a hint for me,
Thanks in advance,
pelo

test_tritone_efx.jpg

Hello community,
I am trying to mimic the nice "tritone" color effect which is included in Adobe After effects. 

recolor-image-with-jit-gl-pix-using-a-3-color-gradient-mimic-"tritone"-efx

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recolor image with jit.gl.pix using a 3 color gradient mimic "tritone" efx

Mona Pink

Hello! I've been scratching my head a few hours trying to figure this out. When routing a jit.graph to a jit.window or jit.pwindow, there is also a solid white line present at the zero crossing. Does anyone know if there is a way to stop this line from rendering? jit.catch is capturing the audio from plugin~ and passing it on to jit.graph~ in mode 1. 
After having spent a day looking for the perfect waveform visualization for my needs, this one is by far the most pleasing I've found - except for the line in the middle. 

Does this have anything to do with jitter limitations in max for live? They were mentioned in the documentation for Max 7, but not Max 8.

I would love to know if anyone has any ideas!

Regards, Monapink


billede.png

monapink audio viz.amxd

Hello! I've been scratching my head a few hours trying to figure this out. 

is-there-a-way-to-get-rid-of-the-solid-white-line-in-the-jit-pwindow-displaying-a-jit-graph-with-data-by-a-jit-catch~

Is there a way to get rid of the solid white line in the jit.pwindow displaying  a jit.graph with data by a jit.catch~?

Ru Gilfillan

I am using jit.world to simulate our solar system, so my gridshapes all have textures and there’s a cube map background. 

I have tried to give the planets streaks using both ‘erase color’ and adjusting the alpha, as well as jit.gl.pass smear.

Through trial and error I have achieved the effect I want, except the streaks don’t show when you first open the patch and switch on the world object. Once the patch is open, if you edit the jit.world object (without changing anything) causing it to reload, when it is switched back on the streaks are there.

Is there a way I can solve this so that the streaks appear when the patch is first opened?

jit-world-doesn’t-render-correctly-on-first-open-but-does-when-the-object-is-reloaded

a patch would help anyone to help here...

Jit.world doesn’t render correctly on first open, but does when the object is reloaded.

Sabina Grisi

I'm just trying to make a picture have a char of 30 30  using jit movie and jit.matrix. But of course the image by downloading it is really small. I know I can add another jit.matrix object with the dimensions I want, but I want the original ones for all the pictures. Not just the dims from one picture and then manually changing them after "reading" another one.

At the moment I have connected the jit.movie to a jit.matrixinfo and this one to a route dim. I've read that I can use jit.expr, and then connect that one to the last jit.matrix to change the char values, but I am stuck and I don't know how to proceed.

Hello there,
I'm just trying to make a picture have a char of 30 30  using jit movie and jit.matrix. 

trying-to-change-back-the-jit-matrix-to-the-original-dimention-of-a-jit-movie-after-changing-it-to-char-30-30

Ended up doing this for anyone who is interested:

{
	"boxes" : [ 		{
			"box" : 			{
				"maxclass" : "newobj",
				"text" : "receive original_dimensions",
				"id" : "obj-7",
				"patching_rect" : [ 441.0, 1113.983082234859467, 157.0, 22.0 ],
				"numinlets" : 0,
				"numoutlets" : 1,
				"outlettype" : [ "" ]
			}

}
, 		{
			"box" : 			{
				"maxclass" : "attrui",
				"fontname" : "Arial",
				"displaymode" : 3,
				"text_width" : 49.620026000000003,
				"fontface" : 0,
				"id" : "obj-8",
				"patching_rect" : [ 441.183670000000006, 1148.983082234859467, 134.0, 23.0 ],
				"numinlets" : 1,
				"fontsize" : 13.0,
				"numoutlets" : 1,
				"attr" : "dim",
				"parameter_enable" : 0,
				"outlettype" : [ "" ]
			}

}
, 		{
			"box" : 			{
				"maxclass" : "newobj",
				"text" : "jit.matrix 4 char 30 30",
				"id" : "obj-12",
				"patching_rect" : [ 363.0, 1196.552631497383118, 123.0, 22.0 ],
				"numinlets" : 1,
				"numoutlets" : 2,
				"outlettype" : [ "jit_matrix", "" ]
			}

}
, 		{
			"box" : 			{
				"maxclass" : "newobj",
				"text" : "send original_dimensions",
				"id" : "obj-60",
				"patching_rect" : [ 82.0, 343.0, 144.0, 22.0 ],
				"numinlets" : 1,
				"numoutlets" : 0
			}

}
, 		{
			"box" : 			{
				"maxclass" : "newobj",
				"text" : "route dim",
				"fontname" : "Arial",
				"id" : "obj-32",
				"patching_rect" : [ 82.0, 306.0, 63.0, 23.0 ],
				"numinlets" : 2,
				"fontsize" : 13.0,
				"numoutlets" : 2,
				"outlettype" : [ "", "" ]
			}

}
, 		{
			"box" : 			{
				"maxclass" : "newobj",
				"text" : "jit.matrixinfo",
				"id" : "obj-3",
				"patching_rect" : [ 82.0, 272.0, 73.0, 22.0 ],
				"numinlets" : 1,
				"numoutlets" : 1,
				"outlettype" : [ "" ]
			}

}
, 		{
			"box" : 			{
				"maxclass" : "jit.pwindow",
				"presentation_rect" : [ 639.0, 194.355420351028442, 369.0, 333.0 ],
				"presentation" : 1,
				"id" : "obj-41",
				"patching_rect" : [ 363.0, 652.0, 297.0, 320.0 ],
				"numinlets" : 1,
				"sync" : 1,
				"numoutlets" : 2,
				"outlettype" : [ "jit_matrix", "" ]
			}

}
, 		{
			"box" : 			{
				"maxclass" : "newobj",
				"text" : "jit.movie",
				"id" : "obj-17",
				"patching_rect" : [ 28.0, 215.0, 53.0, 22.0 ],
				"numinlets" : 1,
				"numoutlets" : 2,
				"outlettype" : [ "jit_matrix", "" ]
			}

}
 ],
	"lines" : [ 		{
			"patchline" : 			{
				"source" : [ "obj-8", 0 ],
				"destination" : [ "obj-12", 0 ],
				"midpoints" : [ 450.683670000000006, 1185.0, 372.5, 1185.0 ]
			}

}
, 		{
			"patchline" : 			{
				"source" : [ "obj-7", 0 ],
				"destination" : [ "obj-8", 0 ],
				"midpoints" : [ 450.5, 1138.983082234859467, 450.683670000000006, 1138.983082234859467 ]
			}

}
, 		{
			"patchline" : 			{
				"source" : [ "obj-41", 0 ],
				"destination" : [ "obj-12", 0 ],
				"midpoints" : [ 372.5, 975.0, 372.5, 975.0 ]
			}

}
, 		{
			"patchline" : 			{
				"source" : [ "obj-32", 0 ],
				"destination" : [ "obj-60", 0 ],
				"midpoints" : [ 91.5, 330.0, 91.5, 330.0 ]
			}

}
, 		{
			"patchline" : 			{
				"source" : [ "obj-3", 0 ],
				"destination" : [ "obj-32", 0 ],
				"midpoints" : [ 91.5, 297.0, 91.5, 297.0 ]
			}

}
, 		{
			"patchline" : 			{
				"source" : [ "obj-17", 0 ],
				"destination" : [ "obj-3", 0 ],
				"midpoints" : [ 37.5, 258.0, 91.5, 258.0 ],
				"order" : 2
			}

}
 ],
	"appversion" : 	{
		"major" : 8,
		"minor" : 5,
		"revision" : 3,
		"architecture" : "x64",
		"modernui" : 1
	}
,
	"classnamespace" : "box"
}

Trying to change back the jit.matrix to the original dimention of a jit.movie after changing it to char 30 30

Rob Ramirez

Happy post RNBO day everyone, I've got some details and context on what the Jitter team has cooked up for the 8.5 update.

Top of the list, GLCore (or glcore) and what it's all about. With 8.5 we've done 2 things:

Renamed the formerly beta gl3 engine to glcore

Transitioned our default graphics engine from the legacy gl2 to the modern glcore.

The reason for the renaming is to better reflect the reality that most graphics cards will support OpenGL versions beyond version 3. The engine provides support for modern core profile OpenGL at whatever version your graphics card supports.


For existing gl3 users not much has changed in functionality (other than the new juicy bits described below). However the consequences extend beyond the technology. We now have a solid foundation for continuing our engine modernization and growth, and can fully document the new behavior and features. To that end there are a handful of new examples to check out in the glcore Examples Extras patch.

For gl2 users this is a significant but hopefully seamless change. We will publish more details on how best to utilize modern graphics engines and other ins and outs, and we strongly encourage contacting support with any issues. However if you wish to revert back to gl2 simply change your Graphics Engine (gfxengine) preference back to gl2. You first might want to check out the afore mentioned glcore Examples patch to see what you're forgoing.


A new entry to our Jitter Tools suite is the jit.gl.textmult object, which allows for manipulating letters and words of text using a jit.gl.multiple like interface and highly efficient mesh rendering. As an added bonus for text lovers we’ve removed the 1024 character limit on jit.gl.text input strings.

Also included with 8.5 are some lovely new jit.gl.pass post processing effects. The atmospheric effect adds global fog and atmospheric scattering to any 3D scene with ease, and for experimenting with global illumination check out the temporal screen-space ambient occlusion (tssao-gi) and screen-space reflections (tssao-gi-ssr and ssr) effects.

Speaking of global illumination, the new jit.gl.environment object handles the loading and sharing of environment map resources for image based lighting (IBL), cubemap, and skybox rendering for supported objects. This currently includes jit.gl.pbr, jit.gl.material, and jit.gl.skybox. The object functions like jit.gl.light, where if a context has an environment attached, the supported objects will use it for rendering.

We've also added glTF PBR material support to jit.gl.model, giving much better results when rendering these model files. In the video below we see non-PBR rendering on the left, and PBR rendering on the right.

For links to the example patches mentioned (and loads more) check out the glcore Examples and Jitter Tools Extras patches, and the jit.gl.pass reference page.

glcore-extras.png

textmult.png

fog-fx.png

Happy post RNBO day everyone, I've got some details and context on what the Jitter team has cooked up for the 8.5 update.
Top of the list, ... 

jitter-8-5-and-glcore

Hey everyone, we've got an update for glcore included in the Jitter Tools 1.0.6 version now live in the Package Manager. This update addresses a handful of reports we've received since the release of 8.5 and is recommended for all 8.5.x glcore users.

fix move texture output when skybox enabled in same context

jit.gl.mesh - fix crash on certain adjacency draw modes

jit.gl.path - evalout equals zero drawing fix

jit.gl.text2d - fix screenmode 0 rendering with high dpi display

jit.gl.environment - reflection map edge length attribute

jit.gl.meshwarp - external input matrix for initial mesh geometry via mesh_matrix message

jit.gl.meshwarp - output_mesh_matrix message to output the mesh vertex data

Rob, congrats to you and c74 on glcore. I get the effort your team put into it. :-)
Are there C/++ examples for the updated interfacing possible HOST to/from GPU for textures, buffers, mapping between max,opencl,opengl, etc.

Unfortunately I don't have a great answer for you. The SDK has not been updated with examples for developing for glcore, and given the current state of flux in our backend graphics engine work, I don't have a good estimate for when that might change. 

That being said, both Syphon and Spout are open source and demonstrate how an external can support both legacy gl2 and modern glcore using some wrapper functions we expose in the jit.gl.draw.h header file. If you're only concerned with core profile support you can ignore these wrappers and link to the gl3 library headers instead (which may be easiest by defining GL3_VERSION=1 in your project preprocessor definitions). Additionally, the basic principles of jit.gl external development outlined in our SDK documentation still hold true.

I'm also more than happy to provide whatever insight I can for any brave explorers in this space.

Cycling '74 Forums

Jitter 8.5 and GLCore

Thanks much Dale. Unfortunately I don't have a great answer for you.

Transform 3D Model into Point Cloud

Hello everyone. I recently studied an episode of Federico's tutorial and it was fantastic! https://www.youtube.com/watch?v=cZvcDGbEbZk I ...

jit.multiple + jit.gl.model/mesh animation with song timing

Hi Rob, that helped to fix the issue; i set that value to that model for something else since i duplicated it, but i didn't know that was ...

Weird corrupted-like textures after some texture operations ...

thanks for sharing, I'll investigate adding your fix to this shader.

view an ip camera

How can I view video from an ip camera using Max8 or jitter.

bug: jit.buffer from char matrix produces garbled buffer content

understood. An error message would be nice, though, instead of nonsense output.

Accessing cues using [position] to <jit.movie> weirdness

Thanks Julien. Still a few things to figure out.

recolor image with jit.gl.pix using a 3 color gradient mimic "tritone" efx

Hello community, I am trying to mimic the nice "tritone" color effect which is included in Adobe After effects.

Is there a way to get rid of the solid white line in the jit.pwindow displaying a jit.graph with data by a jit.catch~?

Hello! I've been scratching my head a few hours trying to figure this out.

Jit.world doesn’t render correctly on first open, but does when the object is reloaded.

a patch would help anyone to help here...

Trying to change back the jit.matrix to the original dimention of a jit.movie after changing it to char 30 30

Ended up doing this for anyone who is interested: { "boxes" : [ { "box" : { "maxclass" : "newobj", "text" : "receive ...

Cycling '74 Forums

.css-lq0bf2{font-size:18px;line-height:24px;font-weight:700;color:var(--theme-ui-colors-accent);-webkit-text-decoration:none;text-decoration:none;}.css-lq0bf2:visited{color:var(--theme-ui-colors-dark30);}.css-lq0bf2:hover{color:var(--theme-ui-colors-accent);}Jitter 8.5 and GLCore

Thanks much Dale. Unfortunately I don't have a great answer for you.

Hello everyone. I recently studied an episode of Federico's tutorial and it was fantastic! https://www.youtube.com/watch?v=cZvcDGbEbZk I ...

Hi Rob, that helped to fix the issue; i set that value to that model for something else since i duplicated it, but i didn't know that was ...

thanks for sharing, I'll investigate adding your fix to this shader.

How can I view video from an ip camera using Max8 or jitter.

understood. An error message would be nice, though, instead of nonsense output.

Thanks Julien. Still a few things to figure out.

Hello community, I am trying to mimic the nice "tritone" color effect which is included in Adobe After effects.

Hello! I've been scratching my head a few hours trying to figure this out.

a patch would help anyone to help here...

Ended up doing this for anyone who is interested: { "boxes" : [ { "box" : { "maxclass" : "newobj", "text" : "receive ...

Jitter 8.5 and GLCore