Several mistakes were made past where the stream was expected to raise
the EOF flag when reaching the end of stream. That is incorrect. The
flag is only raised if the current read operation fails.
This commit unifies all istream compatibility code to use 'canRead'
for reliable EOF detection. An exception is now thrown when a
value cannot be read completely (e.g. missing bytes).
Version comments are added for easier backtracing.
Reduces memory usage on the server, especially with many user and/or large viewing distances.
Currently disabled on the client due to known data races on a block's data.
Gimbal lock is a situation where the pitch (the middle angle) of the Tait-Bryan angles (usually called Euler angles incorrectly) is 90 degrees. If the angles specify a rotation close to gimbal lock, the precision requirements increase significantly, beyond what a single-precision float can provide, and at exactly gimbal lock, there's a loss of information. The test didn't take this into account. Fix this by decreasing the expected precision when close to gimbal lock.
The increased error rate on ARM Macs is probably caused by lesser precision in trigonometric functions. IEC-559 does not specify any semantics for those, and while Intel typically has a precision < 1 ulp for trigonometric functions with angles < 2*pi, it's likely that ARM's precision is a bit worse.
* Document Luanti rotation conventions
* Add test for setPitchYawRollRad (entity) rotation conventions
* Test and document that `vector.rotate` uses (extrinsic) Z-X-Y rotation order
* Fix attachments lagging behind their parents (#14818)
* Fix animation blending (#14817)
* Bring back cool guy as another .x smoke test
* Add .x mesh loader unittest
* Do bounding box & matrix calculation at proper point in time
* Remove obsolete `SAnimatedMesh`
behavior change: newly generated blocks are no longer momentarily activated.
this shouldn't matter for anyone and did not consistently apply to all blocks anyway
addresses issue from #15902 for new maps(!)
