About Camera's LayerMask

[BlackMojito]

Hi Folks,

Just a question about the LayerMask: is there any way to keep the depth stencil buffers between the layers? I would like to apply different post processing pipelines to different layers so that I cannot use RenderGroup for this. 

http://playground.babylonjs.com/#QGW698#1, in the playground we can see that the ground is always in front of the sphere because its layer is bigger than the one of the sphere. Is there a way to not clear the depth buffer?

Many thanks

 

[aWeirdo]

Hi @BlackMojito

i don't believe it's so much to do with the layerMask (i could be wrong)
but more to do with the fact that each camera is a render "layer" itself.

// camera_A is rendered first, camera_B is rendered second, e.g. on top of camera_A's render.
scene.activeCameras.push(camera_A, camera_B);

Think of each camera like a transparent piece of plastic you draw something on,
first you draw something on the first piece,
then the second piece is put on-top of the first and then you draw something else on that.

i mentioned it only shortly in my response to your "old" topic, as it didn't seem too relevant as the target for the first camera was a skybox, which i assume, will always be rendered in the background  

Pinging @Deltakosh for comfirmation (maybe even a solution ?  ) ,
the above information is merely an assumption based on how the PG acts when different values are swapped around,
i haven't checked the code which handles it.

[BlackMojito]

1 hour ago, aWeirdo said:

Hi @BlackMojito

i don't believe it's so much to do with the layerMask (i could be wrong)
but more to do with the fact that each camera is a render "layer" itself.

// camera_A is rendered first, camera_B is rendered second, e.g. on top of camera_A's render.
scene.activeCameras.push(camera_A, camera_B);

Think of each camera like a transparent piece of plastic you draw something on,
first you draw something on the first piece,
then the second piece is put on-top of the first and then you draw something else on that.

i mentioned it only shortly in my response to your "old" topic, as it didn't seem too relevant as the target for the first camera was a skybox, which i assume, will always be rendered in the background  

Pinging @Deltakosh for comfirmation (maybe even a solution ?  ) ,
the above information is merely an assumption based on how the PG acts when different values are swapped around,
i haven't checked the code which handles it.

Hum...but if I would like to take into account the depth buffer rendered by the first camera, how can I do it though?

[BlackMojito]

Hum...or...is there any way that we can achieve what as the screenshot below? In the PP pipeline, there are some algorithms which composite the two buffers.