fix(Rasterize): handle triangle with degenerated edges

BotellaA · BotellaA · commit 256848752b26 · 2022-11-30T10:10:20.000+01:00
diff --git a/src/geode/mesh/helpers/rasterize.cpp b/src/geode/mesh/helpers/rasterize.cpp
@@ -332,7 +332,12 @@ namespace
         cells.reserve( max_number_cells( min, max ) );
         const auto triangle_edges = get_triangle_edges( triangle );
         const auto normal = triangle.new_normal();
-        if( !normal )
+        if( !normal
+            || absl::c_count_if( triangle_edges,
+                   []( const geode::Segment3D& segment ) {
+                       return segment.length() <= geode::global_epsilon;
+                   } )
+                   > 0 )
         {
             for( const auto e : geode::LRange{ 3 } )
             {

Original file line number	Diff line number	Diff line change
`@@ -332,7 +332,12 @@ namespace`
`332`	`332`	`cells.reserve( max_number_cells( min, max ) );`
`333`	`333`	`const auto triangle_edges = get_triangle_edges( triangle );`
`334`	`334`	`const auto normal = triangle.new_normal();`
`335`		`- if( !normal )`
	`335`	`+ if( !normal`
	`336`	`+ \|\| absl::c_count_if( triangle_edges,`
	`337`	`+ []( const geode::Segment3D& segment ) {`
	`338`	`+ return segment.length() <= geode::global_epsilon;`
	`339`	`+ } )`
	`340`	`+ > 0 )`
`336`	`341`	`{`
`337`	`342`	`for( const auto e : geode::LRange{ 3 } )`
`338`	`343`	`{`