Sharing information between fragment shaders

[Nacheitor]

Hi, I have a doubt. Would it be possible to share information between fragment shaders?
I would like to have a buffer to share information between the different fragment shaders that affect a pixel of the final rendering of the scene. And in the end of the rendering cycle, clean all that information for the next rendering cycle.

Thanks in advance.

[NasimiAsl]

that is possible by second material in render target and use postprocess

https://www.babylonjs-playground.com/#1HECPU#5

[Guest]

Another example: http://www.babylonjs.com/demos/customrendertarget/

[Nacheitor]

I'm trying to do something like this:

https://www.youtube.com/watch?time_continue=19&v=yECDO_l00rs

If I have a buffer between fragments shaders, I could have a record of what has been rendered in each pixel and thus be able to decide what should be painted or not.

For example, taking the video as example. If the back part of the cylinder is rendered first, then the back part of the sphere, the front part of the cylinder should be discarded. I don't know if I explain.

I don't know how I could implement that with the examples you have given me ... I'm sorry but it's the first time I've worked with shaders.

Thanks in advance.

[NasimiAsl]

you read this article 

i try make more sample

[Nacheitor]

Has someone worked with Shader Storage Buffer Object (SSBO) in Babylon? Maybe that could be the solution...