Fix off by one error in torus texture coordinate generation

Prevents interpolation from (1-dv) to 0 over the final ring of triangles
of the torus. Now we only reach v = 1 at the same point in space where
we began creating the torus.

Change-Id: I68630c623483bf2993ef24dbef98cca5a9ae26fd
Reviewed-by: Kevin Ottens <kevin.ottens@kdab.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/extras/geometries/qtorusgeometry.cpp b/src/extras/geometries/qtorusgeometry.cpp
index bcfe420de..aab466b13 100644
--- a/src/extras/geometries/qtorusgeometry.cpp
+++ b/src/extras/geometries/qtorusgeometry.cpp
@@ -67,7 +67,7 @@ QByteArray createTorusVertexData(double radius, double minorRadius,
     float* fptr = reinterpret_cast<float*>(bufferBytes.data());
 
     const float ringFactor = (M_PI * 2) / static_cast<float>( rings );
-    const float sideFactor = (M_PI * 2) / static_cast<float>( sides );
+    const float sideFactor = (M_PI * 2) / static_cast<float>( sides - 1 );
 
     for (int ring = 0; ring <= rings; ++ring) {
         const float u = ring * ringFactor;