コード例 #1
0
        internal RTModelViewer()
        {
            m_DrawHelper.initializeModelTransform();

            m_RootNode = new UWB_SceneNode("Scene");
            NewSceneDatabase();
            mCamera = new UWB_SceneNode();

            UWB_SceneNode pAxisNode = new UWB_SceneNode("axis frame");
            UWB_XFormInfo xf = pAxisNode.getXFormInfo();
            xf.SetScale(new Vector3(3.0f, 3.0f, 3.0f));
            pAxisNode.setXFormInfo(xf);
            UWB_XNAPrimitiveMeshAxis pMeshAxis = new UWB_XNAPrimitiveMeshAxis();
            //pMeshAxis.EnableBlending(true);
            pAxisNode.setPrimitive(pMeshAxis);
            m_RootNode.insertChildNode(pAxisNode);

            m_WorldBounds.setCorners( new Vector3(-100,-100,-100), new Vector3(100,100,100) );
        }
コード例 #2
0
 private UWB_SceneNode CreateNode(Vector3 at, float sx, float sy, float sz, UWB_Primitive prim)
 {
     UWB_SceneNode pNode = new UWB_SceneNode();
     pNode.setPrimitive(prim);
     UWB_XFormInfo xf = pNode.getXFormInfo();
     xf.SetTranslation(at);
     xf.SetScale(new Vector3(sx, sy, sz));
     pNode.setXFormInfo(xf);
     m_SceneDatabase.insertChildNode(pNode);
     return pNode;
 }
コード例 #3
0
        private void AddCamera(RayTracer_552.RTCamera c)
        {
            // Look at position
            UWB_SceneNode atN = new UWB_SceneNode();
            UWB_XNAPrimitiveMesh at = new UWB_XNAPrimitiveMesh("sphere");
            at.Material.Diffuse = new Vector4(0.8f, 0.1f, 0.1f, 1.0f);
            atN.setPrimitive(at);
            UWB_XFormInfo atxf = atN.getXFormInfo();
            atxf.SetTranslation(c.AtPosition);
            atxf.SetScale(new Vector3(0.3f, 0.3f, 0.3f));
            atN.setXFormInfo(atxf);

            // Eye position
            UWB_SceneNode eyeN = new UWB_SceneNode();
            UWB_XNAPrimitiveMesh eye = new UWB_XNAPrimitiveMesh("cone");
            eyeN.setPrimitive(eye);
            UWB_XFormInfo eyexf = eyeN.getXFormInfo();
            eyexf.SetTranslation(c.EyePosition);
            mCameraPosition = c.EyePosition;
            Vector3 init = new Vector3(0, 0, 1); // initial cone orientation
            Vector3 final = c.AtPosition - c.EyePosition;
            final = Vector3.Normalize(final);
            float dot = Vector3.Dot(init, final);
            if (Math.Abs(dot) < 0.9999)
            {
                float angle = (float)Math.Acos(dot);
                Vector3 axis = Vector3.Cross(init, final);
                axis = Vector3.Normalize(axis);
                Quaternion q = Quaternion.CreateFromAxisAngle(axis, angle);
                eyexf.SetRotationQuat(q);
            }
            eyeN.setXFormInfo(eyexf);

            // Lines ...
            UWB_SceneNode lineN = new UWB_SceneNode();
            mCameraPrimitives = new UWB_PrimitiveList();
            lineN.setPrimitive(mCameraPrimitives);
            UWB_PrimitiveLine l = new UWB_PrimitiveLine();
            l.setStartPoint(c.EyePosition.X, c.EyePosition.Y, c.EyePosition.Z);
            l.setEndPoint(c.AtPosition.X, c.AtPosition.Y, c.AtPosition.Z);
            mCameraPrimitives.append(l);

            mCamera.insertChildNode(lineN);
            mCamera.insertChildNode(atN);
            mCamera.insertChildNode(eyeN);
        }