Problem with layerMask and shadow

[snot224]

Hi all, and Happy New Year !!!!!

I come with an over problem.

I've got a ground, and some meshes on it (this is a strategy game). I've got 2 viewports, 1 for the game, and 1 for minmap to have a global view.

I would like to show or not some meshes on the minmap viewport (like skydome, building to replace it with sprite, etc etc ...), I read about the layermask, it is working fine until I put shadow on my scene .... If I hide meshes on minmap, shadow disapear in the over viewport ...

 

Here the playground exemple :

 

You just have to switch between line 36 and 37 with comment to saw what I mean.

 

http://www.babylonjs-playground.com/#1WELNV#1

 

 

Some good idea ?

 

[snot224]

Hi,

 

no one have solve this problem ? there is a problem with my implementation ?

[BitOfGold]

I did not solve this yet, but I have a similar problem (I am using two cameras, one is an overview, one is for close view. The overview uses a simple object, the close view uses a detailed object).

 

I swapped the order of cameras in your scene, and now only the shadow remains.

 

It is maybe better if you replace the object with some sprite, it still has the shadow.

http://www.babylonjs-playground.com/#1WELNV#2

 

The shadowGenerator, and the rendertarget in it, uses the first active camera I think.

 

In /src/Lights/babylon.directionalLight:
 

DirectionalLight.prototype.setShadowProjectionMatrix = function (matrix, viewMatrix, renderList) {            var activeCamera = this.getScene().activeCamera; 

So I don't know the solution yet, but we have a similar problem.

 

 

 

[snot224]

 

I did not solve this yet, but I have a similar problem (I am using two cameras, one is an overview, one is for close view. The overview uses a simple object, the close view uses a detailed object).

 

I swapped the order of cameras in your scene, and now only the shadow remains.

 

It is maybe better if you replace the object with some sprite, it still has the shadow.

http://www.babylonjs-playground.com/#1WELNV#2

 

The shadowGenerator, and the rendertarget in it, uses the first active camera I think.

 

In /src/Lights/babylon.directionalLight:

 

DirectionalLight.prototype.setShadowProjectionMatrix = function (matrix, viewMatrix, renderList) {            var activeCamera = this.getScene().activeCamera; 

So I don't know the solution yet, but we have a similar problem.

 

 

 

 

 

Thanks for you answer, I'm glad to see that I'm not the only one that catch this problem. I will check around this function but I think I will just create a 2D pictures and will interpolate coordinate to match wil real map, because it sound like easiest way.

[GameMonetize]

This is a tough question. Shadows are generated once because this is an expansive process. Which means that if you have it for one camera you have it for all.

 

I suggest using clone: one object for the main camera and a clone for the viewport