1 files changed, 112 insertions, 0 deletions
diff --git a/tests/manual/planets-qml/Ring.qml b/tests/manual/planets-qml/Ring.qml
new file mode 100644
index 000000000..b2c8f3b60
--- /dev/null
+++ b/tests/manual/planets-qml/Ring.qml
@@ -0,0 +1,112 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+import Qt3D.Render 2.0
+
+// TODO: Once support for meshes from arrays is implemented, replace ring.obj with that
+Mesh {
+    property real innerRadius
+    property real outerRadius
+    /*
+    property real ringSegments
+
+    property var vertices: []
+    property var faces: []
+    property var faceVertexUvs: []
+    */
+
+    source: "qrc:/meshes/ring.obj"
+
+    // Converted from the _RingGeometry() method in the threex.planets.js extension.
+    /*
+    function makeRing() {
+        innerRadius = innerRadius || 0
+        outerRadius = outerRadius || 50
+        var thetaSegments = ringSegments || 8
+        console.log(innerRadius + "," + outerRadius + "," + thetaSegments)
+
+        var normal = Qt.vector3d(0, 0, 1)
+
+        for (var i = 0; i < thetaSegments; i++) {
+            var angleLo = (i / thetaSegments) * Math.PI * 2
+            var angleHi = ((i + 1) / thetaSegments) * Math.PI * 2
+
+            var vertex1 = Qt.vector3d(innerRadius * Math.cos(angleLo),
+                                      innerRadius * Math.sin(angleLo),
+                                      0)
+            var vertex2 = Qt.vector3d(outerRadius * Math.cos(angleLo),
+                                      outerRadius * Math.sin(angleLo),
+                                      0)
+            var vertex3 = Qt.vector3d(innerRadius * Math.cos(angleHi),
+                                      innerRadius * Math.sin(angleHi),
+                                      0)
+            var vertex4 = Qt.vector3d(outerRadius * Math.cos(angleHi),
+                                      outerRadius * Math.sin(angleHi),
+                                      0)
+
+            vertices.push(vertex1)
+            vertices.push(vertex2)
+            vertices.push(vertex3)
+            vertices.push(vertex4)
+
+            var vertexIdx = i * 4
+
+            // Create the first triangle
+            var face = Qt.vector4d(vertexIdx + 0, vertexIdx + 1, vertexIdx + 2, normal)
+            var uvs = []
+
+            var uv = Qt.vector2d(0, 0)
+            uvs.push(uv)
+            uv = Qt.vector2d(1, 0)
+            uvs.push(uv)
+            uv = Qt.vector2d(0, 1)
+            uvs.push(uv)
+
+            faces.push(face)
+            //faceVertexUvs[0].push(uvs)
+            faceVertexUvs.push(uvs)
+
+            // Create the second triangle
+            face = Qt.vector4d(vertexIdx + 2, vertexIdx + 1, vertexIdx + 3, normal)
+            uvs = []
+
+            uv = Qt.vector2d(0, 1)
+            uvs.push(uv)
+            uv = Qt.vector2d(1, 0)
+            uvs.push(uv)
+            uv = Qt.vector2d(1, 1)
+            uvs.push(uv)
+
+            faces.push(face)
+            //faceVertexUvs[0].push(uvs)
+            faceVertexUvs.push(uvs)
+        }
+
+        computeFaceNormals()
+    }
+
+    // Converted from the computeFaceNormals() method in the three.js extension.
+    function computeFaceNormals() {
+        var cb = Qt.vector3d(0, 0, 0)
+        var ab = Qt.vector3d(0, 0, 0)
+
+        for (var f = 0, fl = faces.length; f < fl; f ++) {
+            var face = faces[f]
+
+            var vA = vertices[face.x]
+            var vB = vertices[face.y]
+            var vC = vertices[face.z]
+
+            cb = vC.minus(vB)
+            ab = vA.minus(vB)
+            cb = cb.crossProduct(ab)
+
+            cb = cb.normalized()
+
+            face.w = cb
+        }
+    }
+    */
+}
+
+