Fixing stray triangles under some circumstances for sphere prim. Fixes #1810

andrewfb · andrewfb · commit 4a597c37602f · 2023-06-07T22:41:29.000-04:00
diff --git a/src/cinder/GeomIo.cpp b/src/cinder/GeomIo.cpp
@@ -2022,7 +2022,7 @@ size_t Sphere::getNumIndices() const
 {
 	int numRings, numSegments;
 	numRingsAndSegments( &numRings, &numSegments );
-	return numSegments * numRings * 6;
+	return (numSegments - 1) * (numRings - 1) * 6;
 }
 
 uint8_t Sphere::getAttribDims( Attrib attr ) const

Original file line number	Diff line number	Diff line change
`@@ -2022,7 +2022,7 @@ size_t Sphere::getNumIndices() const`
`2022`	`2022`	`{`
`2023`	`2023`	`int numRings, numSegments;`
`2024`	`2024`	`numRingsAndSegments( &numRings, &numSegments );`
`2025`		`- return numSegments * numRings * 6;`
	`2025`	`+ return (numSegments - 1) * (numRings - 1) * 6;`
`2026`	`2026`	`}`
`2027`	`2027`
`2028`	`2028`	`uint8_t Sphere::getAttribDims( Attrib attr ) const`