- replace serde_derive by feature of serde
incl. source code modifications to compile
- reduce futures-timer to "2.0" to be same as async_std
- update notify
- removed mio, bincode and lz4 compress in common as networking is now in own crate
btw there is a better lz4 compress crate, which is newer than 2017
- update prometheus to 0.9
- can't update uvth yet due to usues
- hashbrown to 7.2 to only need a single version
- libsqlite3 update
- image didn't change as there is a problem with `image 0.23`
- switch old directories with newer directories-next
- no num upgrade as we still depend on num 0.2 anyways
- rodio and cpal upgrade
- const-tewaker update
- dispatch (untested) update
- git2 update
- iterations update
this is the part which prob has less Merge conflics and is easy to rebase
the next commit will have prob alot of merge conflics
followed by a fmt commit
- Completely removed both `log` and `pretty_env_logger` and replaced
with `tracing` and `tracing_subscriber` where necessary.
- Converted all `log::info!(...)` et al. statements to just use the
shorthand macro i.e. `info!`. This was mostly to make renaming easier.
- authc no longer uses reqwest
- image only supports PNG
- replace routille with tiny_http
- several other dependencies
- cargo upgrade
- following improvement was measured on R7 1700X:
before:
- cargo build: 3076.73s user / 4:45 total / 589 dependencies
- cargo test: 6118.38s user / 7:30 total / 959 dependencies
after:
- cargo build: 2680.54s user / 4:05 total / 480 dependencies
- cargo test: 5351.81s user / 7:04 total / 791 dependencies
- added xMAC94x to CODEOWNERS for Cargo.toml, he will protect them from now on and hit people with evil looks ;)
Horizon mapping is a method of shadow mapping specific to height maps.
It can handle any angle between 0 and 90 degrees from the ground, as
long as know the horizontal direction in advance, by remembering only a
single angle (the "horizon angle" of the shadow map). More is explained
in common/src/msg/server.rs. We also remember the approximate height of
the largest occluder, to try to be able to generate soft shadows and
create a vertical position where the shadows can't go higher.
Additionally, map generation has been reworked. Instead of computing
everything from explicit samples, we pass in sampling functions that
return exactly what the map generator needs. This allows us to cleanly
separate the way we sample things like altitudes and colors from the map
generation process. We exploit this to generate maps *partially* on the
server (with colors and rivers, but not shading). We can then send the
partially completed map to the client, which can combine it with shadow
information to generate the final map. This is useful for two reasons:
first, it makes sure the client can apply shadow information by itself,
and second, it lets us pass the unshaded map for use with level of
detail functionality.
For similar reasons, river generation is split
out into its own layer, but for now we opt to still generate rivers on
the server (since the river wire format is more complicated to compress
and may require some extra work to make sure we have enough precision to
draw rivers well enough for LoD).
Finally, the mostly ad-hoc lighting we were performing has been (mostly)
replaced with explicit Phong reflection shading (including specular
highlights). Regularizing this seems useful and helps clarify the
"meaning" of the various light intensities, and helps us keep a more
physically plausible basis. However, its interaction with soft shadows
is still imperfect, and it's not yet clear to me what we need to do to
turn this into something useful for LoD.
Currently we only do this when no players are in range of the chunk. We
also send the first client who posted the chunk a message indicating
that it's canceled, the hope being that this will be a performance win
in single player mode since you don't have to wait three seconds to
realize that the server won't generate the chunk for you.
We now check an atomic flag for every column sample in a chunk. We
could probably do this less frequently, but since it's a relaxed load it
has essentially no performance impact on Intel architectures.
