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Jon Williams

 in this patch show the expected results, both the Kalider-direct output and the "txKalid" texture output show the noisy Kalider colors.  But, the 

 window showing the 3d output of the "colorCrossfader" shader is not showing those Kalider texture colors, even though coded to do so.

color = mix(txKalidVec, color, colorOffsetScale);

//color = mix(txChixVec, color, colorOffsetScale);

output the exact same colors (crossfade results) when you swap which line is commented out.  In other words, it seems to me like the "txKalid" texture reference in the shader code is pointing to the "txChix" texture's memory location instead of its own memory location.  Could that be correct?  Or, where is the mistake I'm missing?

Edit: moved thread to Jitter category.  If you remove the @shader attribute from one of the gridshape objects, the "default shader" for that object does a 50/50 "blend" of the two @texture inputs in 

, so I think I should be able to control that "blend amount" in my custom shader with the "colorOffsetScale" parameter value.  But, not working.  Is it me? It's usually me.

[Max Patch]
The 4 jit.pwindows in this patch show the expected results, both the Kalider-direct output and the "txKalid" texture output...

using-vizzie-kalider-texture-output-in-shader-code-issue

Using Vizzie Kalider texture output in shader code issue?

little_wizard

Hello everyone, i'm having a problem using jit.gl.multiple. I'll explain it.

Take a jit.gl.gridshape bound to a jit.gl.multiple (through left jit.gl.multiple outlet):

jit.gl.multiple @blend_enable appears to be useless, i can't see any variations changing it. 

Case 4. shows that is possible to work with both light and alpha channel activated. The problem is that I want to change A channel with jit.gl.multiple and not with jit.gl.gridshape while having light_enable 1. If I could modify alpha channel with jit.gl.multiple while light_enable is 1, it would give me more possibility to change it individually on each copy made with jit.gl.multiple, unless to do it globally. I can't figure out how to do it. I hope someone can help me.

Making Alpha channel work in jit.gl.multiple while light_enable is on

making-alpha-channel-work-in-jitglmultiple-while-lightenable-is-on

SpyRoX

I'd like to report a problem I've been having lately on dozens of different desktop/laptop with Windows 10/11 and laptop Mac Intel, with Max 8.6.5 and Max 9.1.1.

I initially thought it was due to the complexity of my patches or the size of the textures, but below is a 

 patch that shows the same error: a simple rectangle that scrolls from left to right once a second, the jit.world bang calculates its position, sync on, 60 fps.

The issue appears after a short time (usually 

, then performance returns to normal. After some time, the problem repeats.

Note that on Windows jit.fpsgui always reports a stable 60 fps, and I haven't found a way to check these dropped frames from within Max.

The only way I've found to objectively check for dropped frames is to use an HDMI to USB-C video capture card on another computer and calculate when there are duplicate frames.

Is this a known issue related to jit.world, internal scheduling, or the rendering loop?

OS-level GPU scheduling or power management?

Are there recommended flags, attributes, or diagnostics to better understand these periodic drops?

I'd like to report a problem I've been having lately on dozens of different desktop/laptop with Windows 10/11 and laptop Mac Intel, with...

intermittent-frame-drops-with-jitworld-max-8-max-9-on-any-computer

Intermittent Frame Drops with jit.world (Max 8 / Max 9) on any computer

elby

I have a fairly complicated jitter patch that receives a lot of OSC messages from a Pure Data audio installation. Briefly, it is composed of 8 gridshape that goes to 8 mesh that goes to 8 nodes that are blended to two spout server and I'm using Resolume to edgeblend this composition on a three projector screen. All data from the Pure Data patch are mapped to some parameter to do an audio - video reactive installation. It is working very well at hight fps, but : 

Randomly, I get these errors, always new random ID for both : 

name u709007696 already in use. ob3d does not allow multiple bindings

Also, the patch randomly closes/crashes without having a crash report on reopening.

https://drive.google.com/file/d/1Hmg7x_dE7E8klWfhwf-scRu8vLamsbiG/view?usp=sharing

Is someone here knows why I get these errors and if it could be related to the crashes?

Hi,

I have a fairly complicated jitter patch that receives a lot of OSC messages from a Pure Data audio installation. Briefly, it is...

random-nam-already-in-use-ob3d-does-not-allow-multiple-bindings

Random "name already in use. ob3d does not allow multiple bindings"

David Flaherty

I'm using the viddll engine in order to trigger jit.movie video playback with very low latency. Loading a video into ram with the "loadram" message does indeed allow me to trigger the video very quickly, but it also causes a spike in CPU usage, getting as high as 100-200% after loading just a single 4.2 MB 720p video. I have a patcher with several jit.movie instances that use jit.movie's @moviefile attribute to load video files and it reaches over 800% CPU when using viddll—and that's without any videos actually playing!

In addition, in spite of following Rob Ramirez's advice on viddll best practices (

https://cycling74.com/forums/jit-movie~-will-not-loop-video-smoothly-at-end-of-video#reply-5d8a294a816dc95cca0babd0

, except transcoding to HAP, which I was hoping wouldn't be necessary), I can't manage to get smooth looping working with viddll.

Am I missing some basic configuration step of some kind? Running 9.0.8 on an M4 Max MBP with plenty of memory.

I'm using the viddll engine in order to trigger jit.movie video playback with very low latency. Loading a video into ram with the "loadram"...

cpu-usage-and-looping-issues-using-viddll-with-jitmovie

CPU usage and looping issues using viddll with jit.movie

Laurent Clercq-Roques

I tried to compile the jit.hello example and I have a lot of interogations.

the firsts of them are the deprecated functions in the max.jit.hello.c file :

line 32 : 'max_jit_classex_standard_wrap' is deprecated

at the end the project can be succesfully compiled but when I try to use the fresh new compiled object in Max ( 8.6.5 version and 9.0.8 ) the object is not loaded....

jit.hello : could not load due to incorrect architecture

Are the two things linked ? if this is the case, what are the functions we should use to update the code with the good functions?

Jitter Forum