We have our own assert implementation, `BLI_assert()` that is prefered over the
C standard library one. Its output is more consistent across compilers and
makes termination on assert failure optional (through `WITH_ASSERT_ABORT`).
In many places we'd include the C library header without ever accessing it.
Based on the original patch by Vaishnav S (@padthai), this adds
support for temperature units. Initially supported units are Celsius,
Kelvin, and Fahrenheit.
The units aren't used anywhere with this commit. Those changes should
happen in separate patches by adding PROP_TEMPERATURE to RNA property
definitions. But it should be ensured that the various solvers and
simulations actually properly use real units.
The complexity of some of the changes comes from the fact that these
units have offsets from each other as well as coefficients. This also
makes the implementation in the current unit system troublesome.
For example, entering 0C evaluates correctly to 273K, but 0C + 0C
doubles that result, because each unit value is evaluated separately.
This is quite hard to solve in the general case with Blender's current
unit system, though, so it is not handled in this commit.
Differential Revision: https://developer.blender.org/D4401
This was caused by an oversight in rB45dbc38a8b15. When the next operation
character is found the offset is shifted in the original string. The remaining
length has to be recalculated with that offset before shifting the remaining
characters to make room for the ")".
This applies a relatively simple solution for fixing some unintuitive
cases in unit handling.
Currently entering -1m50cm evaluates to -0.5m, and similarly 1'6"
evaulates to just half a foot. So effectively there's an implied + just
between the numbers, which is quite confusing.
This works by adding parentheses so the negative distributes to the
block of values before the next operator.
For example:
| Before | After |
| `-1m50cm + 1m -2m50cm` | `-(1m50cm) + 1m -(2m50cm)` |
| `-4m + 0.5 / -1.1` | `-(4m) + 0.5 / -(1.1)` |
| `-1'6"` | `-(1'6")` |
| `-1e-2cm` | `-(1e-2cm) ` |
Reviewed By: campbellbarton
Differential Revision: https://developer.blender.org/D7813
This adds a space between a value and its short unit name except for foot, inch, degree, arcminute, arcsecond
Differential Revision: https://developer.blender.org/D5051
Reviewed by Brecht Van Lommel
This affects point, spot and area lights. Sun light strength remains without
a unit. This change does not affect .blend file compatibility in any way, as
with the rest of the unit system it's purely a display and editing feature.
Not used for Cycles yet, that will be done after unifying the settings with
Eevee.
BF-admins agree to remove header information that isn't useful,
to reduce noise.
- BEGIN/END license blocks
Developers should add non license comments as separate comment blocks.
No need for separator text.
- Contributors
This is often invalid, outdated or misleading
especially when splitting files.
It's more useful to git-blame to find out who has developed the code.
See P901 for script to perform these edits.
I only specified the identifiers for the units that are actually accessible for now.
This way we can postpone some decisions for now. E.g. if it should be `METER_SQUARE`, `SQUARE_METER`, `METER_SQ`, ...
Reviewers: brecht
Differential Revision: https://developer.blender.org/D3945
Users can select the main unit they want to use now.
Previously the displayed unit always depended on the magnitude of the value.
The old behavior can be restored by switching to the "Adaptive" mode for length, mass and time units.
Meters, kilograms and seconds are the default units for new and old scenes.
The selected unit is also the default unit for user input.
E.g. if cm is selected, whenever the user inputs a unitless number into a field of type length, it will be interpreted as cm.
Reviewer: brecht
Differential: https://developer.blender.org/D3740
This is still far from prefect, but yet much better than what we had so
far (more consistent with inheritent precision available in floats).
Note that this fixes some (currently commented out) units unittests, and
requires adjusting some others, will be done in next commit.
* Numbers with units (especially, angles) where not handled correctly
regarding number of significant digits (spotted by @brecht in T52222
comment, thanks).
* Zero value has no valid log, need to take that into account!
