Jaehoon Choi

Hello! I have one question. I am currently creating a particle system in jitter that runs on a GPU(jit.gl and glsl). I am applying a sprite image for each particle. My question is, how do I make a particle system that has multiple types of sprite images in Max?

For example, if there is a particle system with 1500 particles, can I make 500 of them in  a.png as a sprite image, another 500 in b.png as a sprite image, and the rest 500 in c.png?

[PROBLEM RESOLVED]
Hello! I have one question. I am currently creating a particle system in jitter that runs on a GPU(jit.gl and glsl). 

particle-system-with-multiple-sprite-images

Particle System with multiple sprite images

kluben

Hello! please help me, how can I make a red line descending from top to bottom?

red-line-in-jitter

Lots of ways to do that, the fastest to code would be using jit.gl.sketch: 



Thank you very much! How to make the red line descend in a horizontal position?

Thank you very much! Please tell me, how to make the red line descend in a horizontal position in object jit.window? I've already tried everything!

No. Here it is, but only with the jit.window object


Hello all! Please tell me how to make the red line in the jit.gl.sketch object be depicted in the object jit.window? And will it be a red line or will it be something else and not a red line?


Hey Kluben, 
the jit.world object has already a jit.window and a jit.gl.render inside, what you are asking is already happening. 
Regarding your second question, I cannot understand it. 
I programmed a red line, so it's going to be a red line.
Unless you mean it from a philosophical/zen point of view (in which case I have to ponder on this a bit longer)


Hello Federico! I have a patch with jit.window, but when I try to add your patch to my patch, there is no red line on my jit.window screen for some reason! That's why I'm asking because I can't put my patch с jit.window and your patch together. Sorry if I explained  with mistakes!

Hello people! Can you check the abstraction with the red line for errors, is everything assembled correctly? for some reason, jit.gl.render says about the error - accelerated is obsolete when using the gl3 engine. Please tell me what could be the reason for this message? And for some reason the jit.window is flickering. what could be the reason for this? Sorry, I made the wrong patсh. Replaced it with the one you need

The message about accelerated is actually a warning, not an error (errors are red, warnings are greenish). 
This means that you can ignore it, it will not stop your program from working.
To make it disappear you just need to remove the "accelerated 1" message. 

I've put a jit.window in the patch, and don't see any particular flickering. 
It could be due to the framerate not being consistent on your machine (so jumping from let's say, 20fps to 60fps). So I've put a jit.fpsgui object for you to monitor the framerate. 

Your "linesegment" message had 1 number too much (it only requires 6, this can be checked in the jit.gl.sketch reference page). 

Here's the patch: 



If you want to increase your Jitter/Max knowledge I've got tons of tutorial here: 
https://www.federicofoderaro.com/videoTutorials.html 

Have fun!

Hello, people! Federico, thank you so much for checking my abstraction and for setting it up! I will definitely get acquainted with your website and your videos! Thanks!
Please tell me how to configure the patch for this -qmetro- object so that in all settings of the values of the -live.dial- object, the red line moves smoothly without flickering? Without touching the qmetro object and its settings!
Somewhere there is an incompatibility, a conflict of objects for some reason! Everything is blinking and flickering as much as the screen is getting dark! I can't understand why this is so?

Hello everyone! Please tell me how can make a vertical "laser red line" moving from right to left using jit.catch~ and jit.window objects? Is it possible to do this?

red line in jitter

Borja Caro

Hi all, i am opening this thread to discuss methods to do multiple video displays with max on OsX  (and how to initialize this on startup).

to date, I just send each (jit.world) window to their respective display (+fullscreen) on startup.


However there are a couple of things that eventually have given me some trouble and still concern me:

-Patcher windows and System notifications showing up on screen in front of the video.

-Video windows being sent to the wrong display, especially if the displays have the same name (same projector model, etc).


Im considering on using projection specific software (i.e. Isadora)  to do this (Sending the video through Syphon).

Is this going to help in terms of reliability or im exposed to the same issues?

Whats your experience for multiple video display on ''permanent'' instalations?

Hi all, i am opening this thread to discuss methods to do multiple video displays with max on OsX  (and how to initialize this on ... 

multiple-displays-for-permanent-installations-osx

Multiple displays for permanent installations (OsX):

Yonathan Zenebe

I am using a jit.world to make a particle system and am following Federico's Amazing Max Stuff tutorial.
Currently, my particles are contained in a cube shape. Can you help me figure out how to contain them within a sphere shape instead?

Particle_example_forum_post.maxpat

Hello friendly coders!
I am using a jit.world to make a particle system and am following Federico's Amazing Max Stuff tutorial.
Currently, ... 

help-with-particle-system-shape

Help With Particle System Shape

proppjones

I live in Kenosha WI. and work part time in Milwaukee WI. I am looking to collaborate with more experienced Maxers than I.  I am interested in  creating a live image and sound but need additional input.  

 I have been creating images  with a device that I have built, but it could be better, more efficient. See  https://www.proppjonesstudio.com/new-gallery-64 to view what kind of work i am making. 

I envision  multi media projections with ambient sound - this is bigger than me. 
All responses welcome.

I live in Kenosha WI. and work part time in Milwaukee WI. I am looking to collaborate with more experienced Maxers than I. 

looking-for-max-collaborators

looking for Max  collaborators in Milwaukee

Johannes Regnier

The display part of a patch I'm working on makes use of several jit.gl.text3d objects. When the graphic engine is set to "glcore", it suffers from a rather massive memory leak, making the patch unusable after a couple hours running. I traced back the problem to the  jit.gl.text3d objects (getting rid of them solve the issue).
Apparently this leak doesn't happen when setting the engine to "gl2".
Is there anything I should be aware when using glcore, that I maybe overlooked?

The display part of a patch I'm working on makes use of several jit.gl.text3d objects. 

jit-gl-text3d-memory-leak-with-glcore-graphic-engine-max-v-8-5-1

please send along the patch that exhibits the leak along with some instructions to get it running, and your system specs (About Max -> Copy support information to clipboard), and we'll check it out.

You can send to me directly if you prefer, or file an issue with support 

jit.gl.text3d memory leak with glcore graphic engine ( MAX v.8.5.1)

TConnors

Hello fellow patchers. Has any found a way to route the jweb windows into the jit.world?  Particularly when the internet web stream is video.  Or is there another way to live stream web based video into the jit.world? I've worked with streaming photos and sound off the internet, but have not found a solution for a video web stream.  I reviewed the 2014 postings on the jit.gl.cef external, which only works for PC, and I'm on a Mac computer.  Would this be something Node for Max could cover? 

Hello fellow patchers. Has any found a way to route the jweb windows into the jit.world?  Particularly when the internet web stream is video

jweb-to-jit-world-question

Has any found a way to route the jweb windows into the jit.world?

the only way i was ever able to do anything like this was setup 'jit.desktop' so that it captures the exact screen-location of the jweb display, writes that to matrix then translates to texture and into jit.world/openGL(but i was never satisfied with that as a solution - jweb has to remain displayed in a certain position during capture, plus that seems like 2 separate passes at displaying the same exact content, felt too finicky/limited/inefficient/etc...)...

but if you have the screen real-estate to spare, try jit.desktop to capture jweb, not sure if there's any other way(jweb has no matrix/texture output, otherwise that would be the best option)

Thanks Raja for the reply.  I did try this option, but, like you, found it very finicky and limited.  I was thinking that it would be great to have a way to route the jweb stream into gl texture.  Perhaps I'm going down the wrong road.

oh, i just read in the other thread where Rob wrote about jit.movie support of streaming from URLs(so this might be the solution), but i haven't figured out how you get the streaming URL to register with jit.movie yet:

if getting the streaming URL from node, and passing it to jit.movie  doesn't work, then I'm not sure. It should work fine, both avf and  viddll engine versions of jit.movie support streaming from URLs...

anyways, just mentioning: sounds like if it's not currently possible, it will be somewhat soon(and you might be right, there's probably a way to grab the stream by URL through node(?)... then convert into GL texture from jit.movie..).. will be keeping an eye on that thread, myself 😋

Yes, after reading Rob's reply to the other thread, I'm going down that rabbit hole to figure it out. Nothing yet, but will post if I find a solution.

Link to other thread  =   https://cycling74.com/forums/youtube-live-stream-in-jitter/replies/1#reply-601ac4bbe903d42586a2f523   

While we are currently investigating some solutions to pipe jweb output into Jitter, there are  some viable solutions using existing software. 

The best solution I've found for this is using my beloved OBS and the obs-ndi plugin. This works on both Mac and windows. After installing the plugin you tell OBS to capture an open browser window, and then enable the NDI output in the OBS Tools menu.

To pipe this signal into jitter, you can install the jit.ndi externals, and use a jit.ndi.receiver~ object. This works quite well on Windows, but on Mac I've found that a better solution (better meaning higher FPS and lower CPU consumption) is install the NDISyphon app to convert the NDI signal from OBS to a Syphon signal, piped into Jitter via jit.gl.syphonclient object.

You could also use the exact same setup with jweb in a max patch instead of a browser window, if you need  the web page hosted in Max for whatever reason. But with a site that generates video (e.g. Shadertoy), I achieved a much better framerate using Chrome instead of jweb. YMMV

The setup is simple enough once you get the hang of things, and gives me a fairly steady 60fps with 1920x1080 dimensions on both Mac and Windows. I plan to make a video walkthrough of this to demo the setup, and will post it here if/when that happens.

Thank you Rob. This is helpful and will have a deep dive into the process you have described. And, yes, it's always much appreciated to have walkthroughs. Thanks in advance.   PS. I also love  OBS.  

Yipe. That works well Rob, and pretty straight forward once you get everything in place.

Any news on that video walkthrough Rob?
There's no NDI output in Tools menu. Evidently version 4.x doesn't work with OBS 28

jweb to jit.world question.

john telfer

Hello there.
I'm using the attached patch for a lecture presentation which plays movies and grabs a feed from cameras. I also need to play some swf files which have basic push buttons which activate mp3s and images. At present I'm having to go through a rather long-winded process of exiting Max, opening Flash and mirroring computer and projector.

I would like to integrate the Flash files into Max but I know that using flash is now pretty much redundant.
Could you suggest an alternative program to Flash which I could using to create interactive files but would integrate with Max, via jit.world I presume.
Thanks for your time.

cyma controls2022.maxpat

Hello there.
I'm using the attached patch for a lecture presentation which plays movies and grabs a feed from cameras. 

creating-alternative-to-flash-swf-to-integrate-into-jitter-patch

Hey John, 
if you want to use SWF files you can build an html page and load it in Max through the jweb object. 
You can then use Max for whatever else you need it. 

That's great. Thanks Federico for your help. I'll give it a go.

creating alternative to Flash swf to integrate into jitter patch

Robert White

Hello,  Is it possible to do vboMesh in GL3?    Cinder and OpenFramworks both have this.   
https://libcinder.org/docs/classcinder_1_1gl_1_1_vbo_mesh.html 
https://openframeworks.cc///documentation/gl/ofVboMesh/ 

I've used vbomesh to load .obj sequence files.  I'm looking to do the same in GL3.   I want to know if it's possible and maybe some tips on where to start?

Hello,  Is it possible to do vboMesh in GL3?    Cinder and OpenFramworks both have this. 

porting-vbomesh-to-jitter

Thanks Federico,  and thanks to your recent class.  That's what inspired this question :) 

The only thread I can find is from Rob Ramirez  about "Loading multiple .OBJs into Jitter" .   I assume he means creating say 30 jit.gl.mesh objects in javascript.   And then somehow swapping between them at 30+ fps?     That's what I'm looking to do. 

And then.... next step, attaching the obj meshes onto point via jit.gl.TF :)

you can use jit.gl.model to load an obj, and enable matrixoutput on it to bang out the loaded model as a matrix that can be displayed by jit.gl.mesh @drawmode triangles. You could create some patch structure (either JS or vanilla patching) that filled a structure up from a folder of obj files (jit.matrixset might be the easiest structure for this) in some intialization routine. then you can iterate through the matrices in your structure however you wish, drawing the geometry with gl.mesh.

of course if you can export as a skeleton based animation in a supporting 3d format (e.g. collada .dae) then you can simply load and animate all from jit.gl.model.

This sounds like a cool solution Rob! But isn't matrixset only good for matrices with same size and planecount? 

To be clear.    The obj files have different vertex counts.    Think of a sweep or extrude sequence starting from zero vertices.     For collada it just bones and global positioning... I'm pretty sure.    Alembic (.abc) would be more along the lines of how to describe it.     

Finally attempted a solution here and now I'm trying to get this to render with a jit.gl.pbr via js.  Tried Rob's and Federico's suggestions but I couldn't figure out how to build an array of matrix_outputs, each a different dimension.   So instead I created an array of jit.gl.models, loaded in .obj files, and this works but I'm not sure if it's the best solution.   

Now I'm trying to take this a step further using pbr but I'm having trouble getting the textures bound to the jit.gl.model(s) in js.  Any suggestions how to assign texture to jit.gl.pbr via js?  My code is not working.  See attached patch, js (line 116), 

Hey Robert! 

We already solved this on Discord but I'm going to post the solution here as well: 
when assigning the pbr.albedo_texture to null, it broke the JS object. 
If that part is removed and the texture assignments are called as functions, then it works: 

pbr.albedo_texture(pbr_jit_matrix.name);

Also, jitter matrices and gl objects should be freed with the "freepeer()" method before they go out of scope or the patch is closed. 

Thank you @Federico!    I was having trouble with the js syntax.

Here is the corrected .js file .  First, load an array of .obj files all to create the animated .obj sequence.   Second, render with a jit.gl.pbr texture and environment map.  

.obj sequences are a precursor to alembic (.abc) files [https://www.alembic.io/ ] and are good for short animations of 3d models with different vertex counts (i.e. growing plants and vines, polygon effects)

.obj sequence via js

nennen he

Firstly,  I was so appreciated that I found Robert post the gl3 version of VR kit.  I put the link below for anyone want to have fun. 
https://cycling74.com/forums/graham-wakefield-vr-package-works-for-oculus-quest-2#reply-618abe4e1cee6665d884e72b

So I made a VR patch which contains some cubes (created with gl.multiple)and a point Floor . Then I tried to applied the Bloom-hq FX only on the cubes.  

In normal condition (not in VR）I used to apply the gl.pass fx on single object by giving different gl.node name, then i use a jit.gl.pix to combine the textures together.
Like the following patch.  I'm not sure if it is correct way .

When it comes to the VR package.  I found that I cannot do it anymore. 
There are things different. 
1. I have to  use  gl.pass to output texture to the p_capture_ scene.   Otherwise I can't see any FX through my  VR OCULUS  QUEST 2 ,even the gl.videoplane shows the FX exists.

2.The patch below shows how a bloom-hq  fx is applied to all object. But,  it's still far from adding FX to cubes only.

3. I tried to capture the cubes and Points seperately and use gl.pix to blend them together, but the VR tracking will be lost and has some view error.  
(The VR patch is below)


So I'm really curious to know how FX could be  applied to single object correctly and how things work in VR environment。

I'm using max 8.5.1 and glcore with Oculus quest 2.

Firstly,  I was so appreciated that I found Robert post the gl3 version of VR kit.  I put the link below for anyone want to have fun. 

how-post-processing-fx-works-in-vr-gl3

How gl.pass applied to single object and how it works in VR (gl3)  ??

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, ... 

Cycling '74 Forums

Jitter 8.5 and GLCore

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, ...

Particle System with multiple sprite images

[PROBLEM RESOLVED] Hello! I have one question. I am currently creating a particle system in jitter that runs on a GPU(jit.gl and glsl).

red line in jitter

Hello everyone! Please tell me how can make a vertical "laser red line" moving from right to left using jit.catch~ and jit.window objects? ...

Multiple displays for permanent installations (OsX):

Hi all, i am opening this thread to discuss methods to do multiple video displays with max on OsX (and how to initialize this on ...

Help With Particle System Shape

Hello friendly coders! I am using a jit.world to make a particle system and am following Federico's Amazing Max Stuff tutorial. Currently, ...

looking for Max collaborators in Milwaukee

I live in Kenosha WI. and work part time in Milwaukee WI. I am looking to collaborate with more experienced Maxers than I.

jit.gl.text3d memory leak with glcore graphic engine ( MAX v.8.5.1)

please send along the patch that exhibits the leak along with some instructions to get it running, and your system specs (About Max -> Copy ...

jweb to jit.world question.

Any news on that video walkthrough Rob? There's no NDI output in Tools menu. Evidently version 4.x doesn't work with OBS 28

creating alternative to Flash swf to integrate into jitter patch

That's great. Thanks Federico for your help. I'll give it a go.

.obj sequence via js

Thank you @Federico! I was having trouble with the js syntax. Here is the corrected .js file .

How gl.pass applied to single object and how it works in VR (gl3) ??

Firstly, I was so appreciated that I found Robert post the gl3 version of VR kit. I put the link below for anyone want to have fun.

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

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, ...

[PROBLEM RESOLVED] Hello! I have one question. I am currently creating a particle system in jitter that runs on a GPU(jit.gl and glsl).

Hello everyone! Please tell me how can make a vertical "laser red line" moving from right to left using jit.catch~ and jit.window objects? ...

Hi all, i am opening this thread to discuss methods to do multiple video displays with max on OsX (and how to initialize this on ...

Hello friendly coders! I am using a jit.world to make a particle system and am following Federico's Amazing Max Stuff tutorial. Currently, ...

I live in Kenosha WI. and work part time in Milwaukee WI. I am looking to collaborate with more experienced Maxers than I.

please send along the patch that exhibits the leak along with some instructions to get it running, and your system specs (About Max -> Copy ...

Any news on that video walkthrough Rob? There's no NDI output in Tools menu. Evidently version 4.x doesn't work with OBS 28

That's great. Thanks Federico for your help. I'll give it a go.

Thank you @Federico! I was having trouble with the js syntax. Here is the corrected .js file .

Firstly, I was so appreciated that I found Robert post the gl3 version of VR kit. I put the link below for anyone want to have fun.

Jitter 8.5 and GLCore