Since OpenGL will not be available in Godot 4.0, this exposes a
choice between Vulkan clustered and Vulkan mobile in the project manager.
Despite the name, Vulkan mobile has many benefits on desktop platforms.
It provides better performance on simple scenes, and ensures that you
won't accidentally use unsupported features while testing your project
on desktop platforms.
The Vulkan backend setting was made into a "basic" setting so that
it can be changed without having to enable the Advanced Settings toggle.
This also improves list formatting to use bullet points and tweaks
the property hint to be more descriptive.
* Simplified code a lot, bias based on normalized cascade size.
* Lets scale cascades, max distance, etc. without creating acne.
* Fixed normal biasing in directional shadows.
I removed normal biasing in both omni and spot shadows, since the technique can't be easily implemented there.
Will need to be replaced by something else.
* Added an extra stage before compiling shader, which is generating a binary blob.
* On Vulkan, this allows caching the SPIRV reflection information, which is expensive to parse.
* On other (future) RenderingDevices, it allows caching converted binary data, such as DXIL or MSL.
This PR makes the shader cache include the reflection information, hence editor startup times are significantly improved.
I tested this well and it appears to work, and I added a lot of consistency checks, but because it includes writing and reading binary information, rare bugs may pop up, so be aware.
There was not much of a choice for storing the reflection information, given shaders can be a lot, take a lot of space and take time to parse.
Found via `codespell -q 3 -S ./thirdparty,*.po,./DONORS.md -L ackward,ang,ans,ba,beng,cas,childs,childrens,dof,doubleclick,fave,findn,hist,inout,leapyear,lod,nd,numer,ois,ony,paket,seeked,sinc,switchs,te,uint`
The `Math_INF` and `Math_NAN` defines were just aliases for those
constants, so we might as well use them directly.
Some portions of the code were already using `INFINITY` directly.
* Shadow quality settings now specialization constant.
* Decal and light projector filters can be set.
* Changing those settings forces re-creation of the pipelines.
These changes should help improve performance related to shadow mapping, and allows improving performance by sacrificing decal and light projector quality.
Check for each body individually if it collides with the other one or
ignores it.
When a body is being ignored, the other body's mass is considered
infinite when applying impulses to avoid extra overlapping.
