solved Question about default.fragment.fx

[BlackMojito]

Hi Folks,

I have a question about the shaders used in Babylon. I saw some special stuff like the line below. I have searched __decl__lihghtFragment but I could not find it. And also this lines seems not to be standard grammar of GLSL. Could someone explain how it works? 

#include<__decl__lightFragment>[0..maxSimultaneousLights]

The background is that I am using the CustomMaterial made by NasamiAsl and I would like to add some custom uniforms like the lights. So the stuff above interests me.

Thanks

[GameMonetize]

Hello this is used by Babylon.js to compile shaders for webgl1 or 2

According to webGL version it will either pick one of these two files:

* https://github.com/BabylonJS/Babylon.js/blob/master/src/Shaders/ShadersInclude/lightFragmentDeclaration.fx (webgl1)

or 

* https://github.com/BabylonJS/Babylon.js/blob/master/src/Shaders/ShadersInclude/lightUboDeclaration.fx (webgl2)

[BlackMojito]

4 hours ago, Deltakosh said:

Hello this is used by Babylon.js to compile shaders for webgl1 or 2

According to webGL version it will either pick one of these two files:

* https://github.com/BabylonJS/Babylon.js/blob/master/src/Shaders/ShadersInclude/lightFragmentDeclaration.fx (webgl1)

or 

* https://github.com/BabylonJS/Babylon.js/blob/master/src/Shaders/ShadersInclude/lightUboDeclaration.fx (webgl2)

OK. So basically "__decl__lightFragment" is just a placeholder here? Hum...what is [0...maxSimultaneousLights] translated to in native glsl shader? Just declare another uniform variable called maxSimultaneousLights?

[GameMonetize]

It will generate x uniforms (one per light from 0 to maxSimultaneousLIghts value)