`IShaderSource` was designed with the idea that if you want a shader,
you must want it for a node. So it depends heavily on being given a tile
material and the node drawtype. But this doesn't make sense neither in theory
nor in practice.
This commit takes a small step towards removing the incorrect abstraction.
This PR adds a variety of effects to enhance the visual experience.
"soft" clouds look
Tinted shadows
Crude water reflections (sky and sun) and waves
Translucent foliage
Node specular highlights
Adjusted fog color (more saturated where the fog is lighter)
Minor changes to volumetric lighting (crudely simulates the effect of depth)
Co-authored-by: sfan5 <sfan5@live.de>
Before this change, if the shaders are broken, only an error message is shown and the player enters the world nonetheless, where he/she sees broken graphics.
Before this change,
the member type and member name are at one place,
and the member name and uniform name are at another place.
If the uniform name is written directly at the member declaration,
the member type, member name and uniform name are all at one place,
which leads to shorter code and may be easier to read.
- Make volumetric light effect strength server controllable
- Separate volumetric and bloom shader pipeline
- Require bloom to be enable, scale godrays with bloom
ENABLE_GLES predates forking Irrlicht. Its primary use was to distinguish Irrlicht-ogles from upstream version as Minetest could be compiled with either.
That's not necessary anymore and gets in the way sometimes.
* Rewrite shadow filtering for the new distortion
* Calculate penumbra radius using a single sample
* Avoid peter-panning effect due to filtering of short shadows
* Add adaptive filter quality for soft shadows
* Avoid sharp shadows on surfaces without normals (e.g. plants)
* Increase default and maximum soft shadow radius
* Make line numbers in shader errors match the code
* Pass perspective distortion parameters as uniforms
* Set all perspective bias parameters via ShadowRenderer
* Recalibrate perspective distortion and shadow range to render less shadow geometry with the same quality and observed shadow distance
