Commit Graph

17 Commits

Author SHA1 Message Date
Dániel Juhász
57e5aa6628 Light update for map blocks
This is not really different from the light update of a voxel
manipulator. This update does not assume that the lighting was correct
before, therefore it is useful for correction.

Also expose this function to the Lua API for light correction, and
allow voxel manipulators not to update the light.
2017-04-20 05:39:14 +02:00
Dániel Juhász
6d1e6f8898 Split light update into two parts
The common part can be reused.
2017-04-20 05:31:50 +02:00
Dániel Juhász
ab371cc934 Light calculation: New bulk node lighting code
This commit introduces a new bulk node lighting algorithm to minimize
lighting bugs during l-system tree generation, schematic placement and
non-mapgen-object lua voxelmanip light calculation.

If the block above the changed area is not loaded, it gets loaded to avoid
lighting bugs.
Light is updated as soon as write_to_map is called on a voxel manipulator,
therefore update_map does nothing.
2017-03-11 02:06:18 +00:00
Dániel Juhász
f17c9c45dc Lighting: Update lighting at block loading
This commit updates mapblocks' light if necessary when they are loaded.
This removes ghost lighting.
2017-02-13 00:05:49 +00:00
Dániel Juhász
3f8261830e Improve getPointedThing() (#4346)
* Improved getPointedThing()

The new algorithm checks every node exactly once.
Now the point and normal vector of the collision is also returned in the
PointedThing (currently they are not used outside of the function).
Now the CNodeDefManager keeps the union of all possible nodeboxes, so
the raycast won't miss any nodes. Also if there are only small
nodeboxes, getPointedThing() is exceptionally fast.
Also adds unit test for VoxelLineIterator.

* Cleanup, code move

This commit moves getPointedThing() and
Client::getSelectedActiveObject() to ClientEnvironment.
The map nodes now can decide which neighbors they are connecting to
(MapNode::getNeighbors()).
2017-01-04 19:18:40 +01:00
juhdanad
2fe3bf5a18 Limit light_source in the engine (#4814)
Since light_source>15 causes crash, it must be limited.
2016-11-28 18:43:33 +10:00
Dániel Juhász
bcb06aeb85 Cleanup 2016-10-27 08:04:42 +02:00
Dániel Juhász
be39f61359 Use node lighting for liquid spreading
This commit modifies the liquid transforming procedure to light and
unlight nodes instead of whole map blocks.
2016-10-27 08:04:42 +02:00
Dániel Juhász
c071efaa43 Improved lighting
This commit rewrites the procedure that is responsible for light
updating.

this commit
-provides iterative solutions for unlighting and light spreading
-introduces a new priority queue-like container for the iteration
-creates per-node MapBlock caching to reduce retrieving MapBlocks from
the map
-calculates with map block positions and in-block relative node
coordinates
-skips light updating if it is not necessary since the node's new light
will be the same as its old light was
2016-10-27 08:04:42 +02:00
sapier
8ad83767cf Remove emerge and speedup addArea by using memcopy instead of one by one assignment 2014-06-23 00:13:41 +02:00
Ilya Zhuravlev
6a1670dbc3 Migrate to STL containers/algorithms. 2013-03-11 19:08:39 -04:00
Sfan5
6d0ea26c2d Update Copyright Years 2013-02-24 20:15:24 +01:00
PilzAdam
497ff1ecd6 Change Minetest-c55 to Minetest 2013-02-24 18:49:03 +01:00
kwolekr
11afcbff69 The new mapgen, noise functions, et al. 2013-01-21 21:41:33 +02:00
Perttu Ahola
037b259197 Switch the license to be LGPLv2/later, with small parts still remaining as GPLv2/later, by agreement of major contributors 2012-06-05 18:54:07 +03:00
Perttu Ahola
0f3c2f6541 voxalgo::clearLightAndCollectSources 2012-03-27 19:01:51 +03:00
Perttu Ahola
56496ad5d8 Implement propagateSunlight for VoxelManipulator 2012-03-27 19:01:50 +03:00