} // Update
#endregion
#region Render Gizmo For Picker
/// <summary>
/// Render the gizmo to the picker.
/// </summary>
private void RenderGizmoForPicker(GameObject3D gizmoCamera)
{
// Calculate the center, scale and orientation of the gizmo.
Vector3 center;
Quaternion orientation;
float scale;
GizmoScaleCenterOrientation(selectedObject, gizmoCamera, out scale, out center, out orientation);
// Calculate the gizmo matrix.
Matrix transformationMatrix = Matrix.CreateScale(scale);
transformationMatrix *= Matrix.CreateFromQuaternion(orientation);
transformationMatrix *= Matrix.CreateTranslation(center);
// Update Cones
redLine.Transform.LocalMatrix = Matrix.Identity;
redLine.Transform.Rotate(new Vector3(0, -90, 0));
redLine.Transform.LocalMatrix = redLine.Transform.LocalMatrix * transformationMatrix;
Picker.RenderObjectToPicker(redLine, Color.Red);
greenLine.Transform.LocalMatrix = Matrix.Identity;
greenLine.Transform.Rotate(new Vector3(90, 0, 0));
greenLine.Transform.LocalMatrix = greenLine.Transform.LocalMatrix * transformationMatrix;
Picker.RenderObjectToPicker(greenLine, new Color(0, 255, 0)); // Color.Green is not 0, 255, 0
blueLine.Transform.LocalMatrix = Matrix.Identity;
blueLine.Transform.LocalMatrix = blueLine.Transform.LocalMatrix * transformationMatrix;
Picker.RenderObjectToPicker(blueLine, Color.Blue);
} // RenderGizmoForPicker
} // Update
#endregion
#region Render Gizmo For Picker
/// <summary>
/// Render the gizmo to the picker.
/// </summary>
private void RenderGizmoForPicker(GameObject3D gizmoCamera)
{
// Calculate the center, scale and orientation of the gizmo.
Vector3 center;
Quaternion orientation;
float scale;
GizmoScaleCenterOrientation(selectedObject, gizmoCamera, out scale, out center, out orientation);
// Calculate the gizmo matrix.
Matrix transformationMatrix = Matrix.CreateScale(scale);
transformationMatrix *= Matrix.CreateFromQuaternion(orientation);
transformationMatrix *= Matrix.CreateTranslation(center);
vertices[0] = Vector3.Transform(new Vector3(0, 0, 0), transformationMatrix);
vertices[1] = Vector3.Transform(new Vector3(1, 0, 0), transformationMatrix);
vertices[2] = Vector3.Transform(new Vector3(0, 1, 0), transformationMatrix);
vertices[3] = Vector3.Transform(new Vector3(0, 0, 1), transformationMatrix);
vertices[4] = Vector3.Transform(new Vector3(1, 1, 0), transformationMatrix);
vertices[5] = Vector3.Transform(new Vector3(0, 1, 1), transformationMatrix);
vertices[6] = Vector3.Transform(new Vector3(1, 0, 1), transformationMatrix);
planeRedGreen.Transform.LocalMatrix = transformationMatrix;
planeGreenBlue.Transform.LocalMatrix = transformationMatrix;
planeBlueRed.Transform.LocalMatrix = transformationMatrix;
Picker.RenderObjectToPicker(planeRedGreen, new Color(255, 255, 0));
Picker.RenderObjectToPicker(planeGreenBlue, new Color(0, 255, 255));
Picker.RenderObjectToPicker(planeBlueRed, new Color(255, 0, 255));
// Render a second time but from the other side.
planeRedGreenInv.Transform.LocalMatrix = transformationMatrix;
planeGreenBlueInv.Transform.LocalMatrix = transformationMatrix;
planeBlueRedInv.Transform.LocalMatrix = transformationMatrix;
Picker.RenderObjectToPicker(planeRedGreenInv, new Color(255, 255, 0));
Picker.RenderObjectToPicker(planeGreenBlueInv, new Color(0, 255, 255));
Picker.RenderObjectToPicker(planeBlueRedInv, new Color(255, 0, 255));
EngineManager.Device.Clear(ClearOptions.DepthBuffer, Color.White, 1, 0);
// Update Axis Lines
lines.LineRenderer.Vertices[0] = new VertexPositionColor(vertices[0], Color.Red);
lines.LineRenderer.Vertices[1] = new VertexPositionColor(vertices[1], Color.Red);
lines.LineRenderer.Vertices[2] = new VertexPositionColor(vertices[0], new Color(0, 255, 0));
lines.LineRenderer.Vertices[3] = new VertexPositionColor(vertices[2], new Color(0, 255, 0));
lines.LineRenderer.Vertices[4] = new VertexPositionColor(vertices[0], Color.Blue);
lines.LineRenderer.Vertices[5] = new VertexPositionColor(vertices[3], Color.Blue);
Picker.RenderObjectToPicker(lines);
// Update Cones
redCone.Transform.LocalMatrix = Matrix.Identity;
redCone.Transform.LocalPosition = new Vector3(1, 0, 0);
redCone.Transform.Rotate(new Vector3(0, 0, -90));
redCone.Transform.LocalMatrix = redCone.Transform.LocalMatrix * transformationMatrix;
Picker.RenderObjectToPicker(redCone, Color.Red);
greenCone.Transform.LocalMatrix = Matrix.Identity;
greenCone.Transform.LocalPosition = new Vector3(0, 1, 0);
greenCone.Transform.LocalMatrix = greenCone.Transform.LocalMatrix * transformationMatrix;
Picker.RenderObjectToPicker(greenCone, new Color(0, 255, 0)); // Color.Green is not 0, 255, 0
blueCone.Transform.LocalMatrix = Matrix.Identity;
blueCone.Transform.LocalPosition = new Vector3(0, 0, 1);
blueCone.Transform.Rotate(new Vector3(90, 0, 0));
blueCone.Transform.LocalMatrix = blueCone.Transform.LocalMatrix * transformationMatrix;
Picker.RenderObjectToPicker(blueCone, Color.Blue);
Vector3 screenPositions = EngineManager.Device.Viewport.Project(vertices[0], gizmoCamera.Camera.ProjectionMatrix, gizmoCamera.Camera.ViewMatrix, Matrix.Identity);
planeAll.LineRenderer.Vertices[0] = new VertexPositionColor(new Vector3((int)screenPositions.X - RegionSize / 2, (int)screenPositions.Y - RegionSize / 2, 0), Color.White);
planeAll.LineRenderer.Vertices[1] = new VertexPositionColor(new Vector3((int)screenPositions.X + RegionSize / 2, (int)screenPositions.Y - RegionSize / 2, 0), Color.White);
planeAll.LineRenderer.Vertices[2] = new VertexPositionColor(new Vector3((int)screenPositions.X + RegionSize / 2, (int)screenPositions.Y - RegionSize / 2, 0), Color.White);
planeAll.LineRenderer.Vertices[3] = new VertexPositionColor(new Vector3((int)screenPositions.X + RegionSize / 2, (int)screenPositions.Y + RegionSize / 2, 0), Color.White);
planeAll.LineRenderer.Vertices[4] = new VertexPositionColor(new Vector3((int)screenPositions.X + RegionSize / 2, (int)screenPositions.Y + RegionSize / 2, 0), Color.White);
planeAll.LineRenderer.Vertices[5] = new VertexPositionColor(new Vector3((int)screenPositions.X - RegionSize / 2, (int)screenPositions.Y + RegionSize / 2, 0), Color.White);
planeAll.LineRenderer.Vertices[6] = new VertexPositionColor(new Vector3((int)screenPositions.X - RegionSize / 2, (int)screenPositions.Y + RegionSize / 2, 0), Color.White);
planeAll.LineRenderer.Vertices[7] = new VertexPositionColor(new Vector3((int)screenPositions.X - RegionSize / 2, (int)screenPositions.Y - RegionSize / 2, 0), Color.White);
Picker.RenderObjectToPicker(planeAll, Color.White);
} // RenderGizmoForPicker