Len Richardson

I'm a little stuck atm. I came across an issue that might be more of a bug than a feature. 

I wanted to create a patch which simple has some videoplanes oscillating in the z direction in my jit.world.

It is not the first time I used several instances of jit.anim.node and textures with alphablend. But I'm quite certain to never have strumbled across this problem.

When I set the alpha for the jit.world's erase color to 0 the whole thing starts to turn into a huge mess since the content is not getting erased. So all seems to become one big feedback loop. Also the jit.gl.handle arrows just keep stacking up. Has it been like this before?

It wouldn't bother to use erase_color with alpha 1 but then my alphablend of my videoplanes does not work as expected. You'll see that both jit.anim.nodes and their attached videoplanes have the same properties. depending on their patching order or their layer one or another do not properly blend.

Can anyone verify that this is expected behavior? Shouldn't jit.world nevertheless erase its content and then set the erase color?

I tested it in both Max 7 and 8 and it is the same in both. And now i am confused.

attrui

loadbang

message

comment

button

fpic

jit.gl.videoplane

toggle

prepend

counter

route

listfunnel

expr

pack

inlet

outlet

multislider

jit.anim.node

jit.gl.texture

jit.world

jit.gl.handle

I'm a little stuck atm. I came across an issue that might be more of a bug than a feature. 
I wanted to create a patch which simple has some videoplanes oscillating in the z direction in my jit.world.
It is not the first time I used several instances of jit.anim.node and textures with alphablend. But I'm quite certain to never have strumbled across this problem.
When I set the alpha for the jit.world's erase color to 0 the whole thing starts to turn into a huge mess since the content is not getting erased. So all seems to become one big feedback loop. Also the jit.gl.handle arrows just keep stacking up. Has it been like this before?
It wouldn't bother to use erase_color with alpha 1 but then my alphablend of my videoplanes does not work as expected. You'll see that both jit.anim.nodes and their attached videoplanes have the same properties. depending on their patching order or their layer one or another do not properly blend.

Can anyone verify that this is expected behavior? Shouldn't jit.world nevertheless erase its content and then set the erase color?  

I tested it in both Max 7 and 8 and it is the same in both. And now i am confused. 

Hi everyone,
I'm a little stuck atm. I came across an issue that might be more of a bug than a feature. 
I wanted to create a patch which si

setting-alpha-for-erase-color-in-jit-world-to-0-creates-a-feedback-loop

It's much easier to play with video feedback and alpha using [jit.gl.node] (if you need transparent background via erase_color). But you can create video feedback even without [jit.gl.node]:

Could it be, that the patch you pasted was not ment for this thread?

In the meantime i lost patience, fiddling around with jit.gl.videoplanes and jit.gl.planes so i went with 3D-objects and jit.gl.model. that works fine and will lead me to my goal but still I'm a little confused about that not blending while blend_enable is set to one.

I'll give it a try. 
Could it be, that the patch you pasted was not ment for this thread?

No, it's the correct one. This patch creates video feedback from webcam (or build in laptop camera) using gen.

Setting alpha for erase color in jit.world to 0 creates a feedback loop.