1 files changed, 7 insertions, 0 deletions
diff --git a/src/mbgl/renderer/symbol_bucket.cpp b/src/mbgl/renderer/symbol_bucket.cpp
index 45e8819b09..2b65d1fefb 100644
--- a/src/mbgl/renderer/symbol_bucket.cpp
+++ b/src/mbgl/renderer/symbol_bucket.cpp
@@ -30,15 +30,22 @@ SymbolInstance::SymbolInstance(Anchor &anchor, const std::vector<Coordinate> &li
         const GlyphPositions &face) :
     hasText(shapedText),
     hasIcon(shapedIcon),
+
+    // Create the quads used for rendering the glyphs.
     glyphQuads(inside && shapedText ?
             getGlyphQuads(anchor, shapedText, textBoxScale, line, layout, textAlongLine, face) :
             PlacedGlyphs()),
+
+    // Create the quad used for rendering the icon.
     iconQuads(inside && shapedIcon ?
             getIconQuads(anchor, shapedIcon, line, layout, iconAlongLine) :
             PlacedGlyphs()),
+
+    // Create the collision features that will be used to check whether this symbol instance can be placed
     textCollisionFeature(line, anchor, shapedText, textBoxScale, textPadding, textAlongLine),
     iconCollisionFeature(line, anchor, shapedIcon, iconBoxScale, iconPadding, iconAlongLine) {};
 
+
 SymbolBucket::SymbolBucket(std::unique_ptr<const StyleLayoutSymbol> styleLayout_, Collision &collision_)
     : styleLayout(std::move(styleLayout_)), collision(collision_) {
     assert(styleLayout);