NME outline shader

[Evgeni_Popov]

Welcome aboard!

You could reuse the PG from:

Showing highlighted silhouette of mesh ONLY when it is occluded

Welcome aboard! What you could is drawing the object at the end (after all other objects) this way: draw the object with zTest=Greater / disable z writing / use the shader with the x-ray effect. This pass will draw the parts of the object using the x-ray shader where the object is occluded by some other objects from the scene draw the object normally with its normal shader. This pass will draw the parts of the object that are not occluded. In Babylon.js, you will need to clone the object to …

and make the outline always visible by setting the depth function to “always”:

Babylon.js Playground

In the PG above, I used the node material from Fresnel effect to the model - #17 by PatrickRyan for the outline effect.

The disadvantage of this technique is that you have to clone the meshes in order to draw them a second time, using the outline shader.

However, I’ll show a way of doing this without cloning meshes once a PR in progress is merged into the repo.