Add support for paged material atlases

[Qwarr]

When run from the editor it works fine, but when bundling it cause the app to crash/hang forever.

ERROR:GAMESYS: Failed to create shader program '/shader_-3396599698792945785.spc': 
WARNING:RESOURCE: Unable to create resource: /shader_-3396599698792945785.spc: FORMAT_ERROR
WARNING:RESOURCE: Unable to create resource: /builtins/materials/gui_paged_atlas.materialc: FORMAT_ERROR
WARNING:RESOURCE: Unable to create resource: /main/main.guic: FORMAT_ERROR
WARNING:RESOURCE: Unable to create resource: /_generated_73fc41fdd6c0abfc.goc: FORMAT_ERROR
ERROR:GAMEOBJECT: Could not instantiate game object from prototype /_generated_73fc41fdd6c0abfc.goc.
ERROR:GAMEOBJECT: Child not found: /cameras/camera_2d
WARNING:RESOURCE: Unable to create resource: /main/main.collectionc: FORMAT_ERROR

Here is an example project:
paged_atlas_testing.zip

[aglitchman]

Thanks for the example!

ERROR:GRAPHICS: Unable to link program.
WARNING:GRAPHICS: Fragment shader version does not match other shader versions.

I'll take a closer look.

[aglitchman]

Temporary workaround - https://github.com/indiesoftby/defold-graphics-angle?tab=readme-ov-file#excluding-gl-es-100-shader-language

[Qwarr]

Can confirm that workaround does work.

[Qwarr]

Interesting Visual glitch while using the work around. I don't have an example but I have an idea it's related to gui.set_texture. When I have time I'll attempt to create an example project.

[aglitchman]

Interesting Visual glitch while using the work around. I don't have an example but I have an idea it's related to gui.set_texture. When I have time I'll attempt to create an example project.

Thanks! Btw, please also test the future example project as a web build (html5) or Android. If it has the same glitch, then it's not ANGLE problem imo.

[Qwarr]

Tested my app real quick with and without ANGLE enabled on android and had no glitch happen. Only happens when ANGLE is enabled on windows. Can't test html5 due to some extension issues.

[aglitchman]

Interesting Visual glitch while using the work around. I don't have an example but I have an idea it's related to gui.set_texture. When I have time I'll attempt to create an example project.

Could you please test your project with the latest Defold beta 1.12.1? I made a fix, looks like it works well. But it's available only for the beta now.

https://github.com/indiesoftby/defold-graphics-angle/releases/download/1.0.0/graphics_angle-defold-1.12.1-beta.zip

Do not forget to put in game.project:

[shader]
output_glsl_es100 = 1
output_glsl_es300 = 1

[Qwarr]

Alright just tested. Seems the original issue of the main post is resolved using only the normal shader options.

However the visual glitch still happens. Sorry I haven't had time to work on a small example just been busy.

[Qwarr]

Okay managed to find time to work on this a bit more, figured out the culprit I believe. When the texture is compressed with "RGB" without A it will bug out.

Example project:
gfx_angle.zip

What you should see when you build for windows:

This will happen if texture compression is enabled through the editor and building or bundling with compression enabled.

Untested with Linxu/Mac