This one allows for complex shaders paired with a simple lighting shader to skip code that would otherwise be pointlessly (and wastefully) run during the light pass.
You can use `if (AT_LIGHT_PASS) , negated or not, and that will be converted to a preprocessed #if when the shader is compiled.
Depending on your game (number of items and lights), this can be a *significant* performance gain, or at least avoids relying on the driver's optimizing abilities.
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
(cherry picked from commit c7bc44d5ad)
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-Changed material unshaded property for an enum, which supports light-only shading
-Added a "Mix" shading mode, useful for using lights as masks
-Added energy parameter to Light2D
-Working area is bigger now, solves #1148
-Using Position now works, fixes#1141
-RGB ops now work, fixes#1139
-Missing bindings to GraphEdit and GraphNode added
-Shader Graph Editor Shows errors on cyclic links and missing connections
-=-=-
-Fixed normalmap depth parameter
-Fixes to DirAccess on Windows
-Double click on resource dock will open them
-Fixes to doc generator (should make github wiki on class list more up to date)
-=-=-=-
-Fixed some DAE import & export bugs
-Changed Collada exporter to use the mesh loops API
-Added tangent export to Collada exporter
-Added triangulation option to Collada exporter
-Changed a little how normalmaps are handled in shader. Not sure if it's working properly, be careful.
-Fixed some strange bug with kinematic bodies #776
-Fix release compilaiton issues #782
-=-=-=-=-=-
-Fixed small bugs all around
-Added ability to show/hide entire sections of the spatial (3D) tree
-WIP new vehicle (not ready yet) based on Bullet
-=-=-=-=-=-=-=-=-=-=-=-=-=
-Begin work on Navigation Meshes (simple pathfinding for now, will improve soon)
-More doc on theme overriding
-Upgraded OpenSSL to version without bugs
-Misc bugfixes
==========
-NOTIFICATION_WM_QUIT fixed on android (seems tha way this is reported changed in newer sdk)
-WIP implementation of APK Expansion APIs for publishing games larger than 50mb in Play Store
-Feaures in the new tutorials are all present in the sourcecode
-This (hopefully) should get rid of the animation list order getting corrupted
-Improved 3D Scene Importer (Skeletons, Animations and other stuff were not being merged). Anything missing?
-In code editor, the automatic syntax checker will only use file_exists() to check preload() else it might freeze the editor too much while typing if the preload is a big resource
-Fixed bugs in PolygonPathFinder, stil pending to do a node and a demo
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-Sprite3D and AnimatedSprite3D support.
-Opaque pre-pass works, is compatible with shadows
-Improved shadow map rendering (can differentiate between plain opaque and opaque with shaders/discard/etc)
-Added option to use alpha discard in FixedMaterial
-Improved Glow FX, many more options (three modes, Additive, Screen and SoftLight), strength and scale
-Ability for Background (image or cubemap) to send to glow buffer
-Dumb Deploy of clients now actually works in Android
-Many Many rendering fixes, 3D is much more usable now.
