Squashed commit of the following:

commit c85c57b
Author: ywmaa <[email protected]>
Date:   Sun May 26 23:06:17 2024 +0300

    fix directional light issue in GLES3

commit 825f3db
Author: ywmaa <[email protected]>
Date:   Sun May 26 16:14:21 2024 +0300

    Reogranization of vertex lighting for GLES3

commit e73e24e
Author: ywmaa <[email protected]>
Date:   Sun May 26 13:23:40 2024 +0300

    Fragment shadows on vertex lighting in Forward Renderers + Reorganization of vertex lighting in Forward Renderers

commit 75aaa26
Author: ywmaa <[email protected]>
Date:   Sat May 25 00:13:32 2024 +0300

    vertex shading use a simpler light model similar to 3.x

commit 867d8cd
Author: ywmaa <[email protected]>
Date:   Wed Jan 10 04:19:49 2024 +0200

    Require Restart when setting force_vertex_shading

commit 712e02c
Author: ywmaa <[email protected]>
Date:   Wed Jan 10 04:07:36 2024 +0200

    fixup: replace albedo with vec3 and use alpha variable

commit 4289c3c
Author: ywmaa <[email protected]>
Date:   Wed Jan 3 18:20:25 2024 +0200

    Remove mobile override for force_vertex_shading

commit abf2332
Author: ywmaa <[email protected]>
Date:   Wed Jan 3 17:57:39 2024 +0200

    Add check for force_vertex_shading in the material

commit ec6efad
Author: ywmaa <[email protected]>
Date:   Wed Jan 3 17:45:36 2024 +0200

    Cleanup not needed code

commit 3a01651
Author: ywmaa <[email protected]>
Date:   Tue Oct 24 02:51:53 2023 +0300

    Fix shadow to opacity not working in vertex lighting

commit 475419e
Author: ywmaa <[email protected]>
Date:   Tue Oct 24 02:18:07 2023 +0300

    Metallic not working in vertex lighting in Vulkan

commit d5da7d1
Author: ywmaa <[email protected]>
Date:   Tue Oct 24 02:04:25 2023 +0300

    Use draw_call.instance_index instead of instance_index in Vulkan Mobile

commit 3f0c9cc
Author: ywmaa <[email protected]>
Date:   Fri Oct 20 05:53:42 2023 +0300

    Fix vertex lighting in Forward+ doesn't render when far from camera.

commit d764273
Author: ywmaa <[email protected]>
Date:   Fri Oct 20 05:37:33 2023 +0300

    skip statically baked directional light in vertex lighting

commit 1eaf5f0
Author: ywmaa <[email protected]>
Date:   Thu Oct 19 19:10:10 2023 +0300

    Implement vertex shading for Vulkan

commit 640b980
Author: ywmaa <[email protected]>
Date:   Thu Oct 19 07:15:42 2023 +0300

    Remove shadows from vertex lighting in GLES3 and support multipass lighting in vertex lighting.

commit d2348e9
Author: ywmaa <[email protected]>
Date:   Sun Oct 15 19:43:46 2023 +0300

    implement shadows in vertex_lighting

commit a13d865
Author: ywmaa <[email protected]>
Date:   Sun Oct 15 17:20:31 2023 +0300

    Reorganize GLES3 scene lights

commit fc77882
Author: ywmaa <[email protected]>
Date:   Sun Oct 15 05:17:20 2023 +0300

    Enable use of global value force_vertex_lighting

commit d3d8fe5
Author: ywmaa <[email protected]>
Date:   Sun Oct 15 03:48:52 2023 +0300

    Implement vertex shading for OpenGL

doc/classes/ProjectSettings.xml

@@ -2833,11 +2833,6 @@
 		</member>
 		<member name="rendering/shading/overrides/force_vertex_shading" type="bool" setter="" getter="" default="false">
 			If [code]true[/code], forces vertex shading for all rendering. This can increase performance a lot, but also reduces quality immensely. Can be used to optimize performance on low-end mobile devices.
-			[b]Note:[/b] This setting currently has no effect, as vertex shading is not implemented yet.
-		</member>
-		<member name="rendering/shading/overrides/force_vertex_shading.mobile" type="bool" setter="" getter="" default="true">
-			Lower-end override for [member rendering/shading/overrides/force_vertex_shading] on mobile devices, due to performance concerns or driver support.
-			[b]Note:[/b] This setting currently has no effect, as vertex shading is not implemented yet.
 		</member>
 		<member name="rendering/textures/canvas_textures/default_texture_filter" type="int" setter="" getter="" default="1">
 			The default texture filtering mode to use on [CanvasItem]s.