Adds BULB_TRACE_EPSILON

JujuAdams · May 22, 2023 · ec05f6c · ec05f6c
1 parent 4869ee4
commit ec05f6c
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Showing 3 changed files with 7 additions and 2 deletions.
diff --git a/scripts/__BulbClassImage/__BulbClassImage.gml b/scripts/__BulbClassImage/__BulbClassImage.gml
@@ -49,7 +49,7 @@ function __BulbClassImage(_spriteIndex, _imageIndex) constructor
             var _result = __BulbTraceBufferToEdgeArray(_buffer,
                                                        sprite_get_width(__spriteIndex) + 2, sprite_get_height(__spriteIndex) + 2, 2,
                                                        -1 - sprite_get_xoffset(__spriteIndex), -1 - sprite_get_yoffset(__spriteIndex),
-                                                       false, true);
+                                                       false, true, BULB_TRACE_EPSILON);
 
             __edgeArray = _result.__edgeArray;
             __radius    = _result.__radius;

diff --git a/scripts/__BulbClassTileset/__BulbClassTileset.gml b/scripts/__BulbClassTileset/__BulbClassTileset.gml
@@ -64,7 +64,7 @@ function __BulbClassTileset(_tileset, _checkForTag = true) constructor
             //We'll likely need the hash later so we can save a bit of time by calculating it now
             if (BULB_USE_DISK_CACHE && (__BULB_BUILD_TYPE == "run")) __GetHash(_buffer);
 
-            var _result = __BulbTraceBufferToEdgeArray(_buffer, __textureWidth, __textureHeight, 0, 0, 0, false, false, 1);
+            var _result = __BulbTraceBufferToEdgeArray(_buffer, __textureWidth, __textureHeight, 0, 0, 0, false, false, BULB_TRACE_EPSILON);
             var _rawEdgeArray = _result.__edgeArray;
 
             buffer_delete(_buffer);

diff --git a/scripts/__BulbConfig/__BulbConfig.gml b/scripts/__BulbConfig/__BulbConfig.gml
@@ -15,6 +15,11 @@
 //Any value greater than or equal to this alpha threshold is considered "opaque"
 #macro BULB_TRACE_ALPHA_THRESHOLD  0.1
 
+//Bulb uses the Ramer–Douglas–Peucker algorithm algorithm to clean up sprite and tilemap tracings
+//You'll only notice the impact of this macro when using a self-lighting renderer mode
+//Increase this number to reduce the number of unnecessary shadows. Decrease this number if you seem to be missing shadows
+#macro BULB_TRACE_EPSILON  4
+
 //Whether to automatically trace tagged assets on boot, and what that tag should be
 //  N.B. In GameMaker LTS 2022.0.0.12, this feature will not work for tilesets due to an upstream GameMaker bug
 #macro BULB_TRACE_TAGGED_ASSETS_ON_BOOT  true