diff options
Diffstat (limited to 'source/blender/blenkernel/intern/scene.c')
-rw-r--r-- | source/blender/blenkernel/intern/scene.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c index 5b5e27d4c53..f912e3d45a6 100644 --- a/source/blender/blenkernel/intern/scene.c +++ b/source/blender/blenkernel/intern/scene.c @@ -82,6 +82,7 @@ #include "BKE_scene.h" #include "BKE_sequencer.h" #include "BKE_sound.h" +#include "BKE_unit.h" #include "BKE_world.h" #include "RE_engine.h" @@ -1970,3 +1971,29 @@ int BKE_scene_num_threads(const Scene *scene) { return BKE_render_num_threads(&scene->r); } + +/* Apply the needed correction factor to value, based on unit_type (only length-related are affected currently) + * and unit->scale_length. + */ +double BKE_scene_unit_scale(const UnitSettings *unit, const int unit_type, double value) +{ + if (unit->system == USER_UNIT_NONE) { + /* Never apply scale_length when not using a unit setting! */ + return value; + } + + switch (unit_type) { + case B_UNIT_LENGTH: + return value * (double)unit->scale_length; + case B_UNIT_CAMERA: + return value * (double)unit->scale_length; + case B_UNIT_AREA: + return value * pow(unit->scale_length, 2); + case B_UNIT_VOLUME: + return value * pow(unit->scale_length, 3); + case B_UNIT_MASS: + return value * pow(unit->scale_length, 3); + default: + return value; + } +} |