New CPU Lightmapper doesn't work on MacOS with IntelGPU

[snougo]

Godot version:

Godot Engine v3.2.4.beta5 lightmapper bulid

OS/device including version:

Issue description:

after baking, I can't see anything but a piece of gray model

also I got error message when use GLES2

got error message when use GLES3

before baking

after baking

Steps to reproduce:
find some model to test
imported the model to engine
unwarp lightmap for each mesh
enabled "Use In Baked Light"
add a directional light and turn on shadow
add BakedLightmap node to the scene tree
click bake button and wait for finsihing

Minimal reproduction project:

https://drive.google.com/file/d/1GwlClcFxspsK7swA2SqnSnsIZWlupanF/view?usp=sharing

[snougo]

here is the Baked Atlas Texture after baking, but it looks like this texture can't apply to the model

[JFonS]

Looks like I made some mistakes on the GLSL code, I will take a look.

[snougo]

has be fixed in beta6

[JFonS]

Thanks for testing!