/// <summary>
/// Creates the scene camera and updates the render texture. Should be called at least once before using the
/// scene view. Should be called whenever the window is resized.
/// </summary>
/// <param name="width">Width of the scene render target, in pixels.</param>
/// <param name="height">Height of the scene render target, in pixels.</param>
private void UpdateRenderTexture(int width, int height)
{
width = MathEx.Max(20, width);
height = MathEx.Max(20, height);
// Note: Depth buffer and readable flags are required because ScenePicking uses it
Texture colorTex = Texture.Create2D(width, height, PixelFormat.RGBA8, TextureUsage.Render | TextureUsage.CPUReadable);
Texture depthTex = Texture.Create2D(width, height, PixelFormat.D32_S8X24, TextureUsage.DepthStencil | TextureUsage.CPUReadable);
renderTexture = new RenderTexture(colorTex, depthTex);
renderTexture.Priority = 1;
if (camera == null)
{
SceneObject sceneCameraSO = new SceneObject("SceneCamera", true);
camera = sceneCameraSO.AddComponent <Camera>();
camera.Viewport.Target = renderTexture;
camera.Viewport.Area = new Rect2(0.0f, 0.0f, 1.0f, 1.0f);
sceneCameraSO.Position = new Vector3(0, 0.5f, 1);
sceneCameraSO.LookAt(new Vector3(0, 0.5f, 0));
camera.Priority = 2;
camera.Viewport.ClearColor = ClearColor;
camera.Layers = UInt64.MaxValue & ~SceneAxesHandle.LAYER; // Don't draw scene axes in this camera
cameraController = sceneCameraSO.AddComponent <SceneCamera>();
cameraController.Initialize();
renderTextureGUI = new GUIRenderTexture(renderTexture);
rtPanel.AddElement(renderTextureGUI);
sceneGrid = new SceneGrid(camera);
sceneSelection = new SceneSelection(camera);
sceneGizmos = new SceneGizmos(camera);
sceneHandles = new SceneHandles(this, camera);
}
else
{
camera.Viewport.Target = renderTexture;
renderTextureGUI.RenderTexture = renderTexture;
}
Rect2I rtBounds = new Rect2I(0, 0, width, height);
renderTextureGUI.Bounds = rtBounds;
focusCatcher.Bounds = GUIUtility.CalculateBounds(rtPanel, GUI);
sceneAxesGUI.SetPosition(width - HandleAxesGUISize - HandleAxesGUIPaddingX, HandleAxesGUIPaddingY);
// TODO - Consider only doing the resize once user stops resizing the widget in order to reduce constant
// render target destroy/create cycle for every single pixel.
camera.AspectRatio = width / (float)height;
}
/// <summary>
/// Creates a new scene axes GUI.
/// </summary>
/// <param name="window">Window in which the GUI is located in.</param>
/// <param name="panel">Panel onto which to place the GUI element.</param>
/// <param name="width">Width of the GUI element.</param>
/// <param name="height">Height of the GUI element.</param>
/// <param name="projType">Projection type to display on the GUI.</param>
public SceneAxesGUI(SceneWindow window, GUIPanel panel, int width, int height, ProjectionType projType)
{
renderTexture = new RenderTexture(PixelFormat.RGBA8, width, height);
renderTexture.Priority = 1;
SceneObject cameraSO = new SceneObject("SceneAxesCamera", true);
camera = cameraSO.AddComponent <Camera>();
camera.Viewport.Target = renderTexture;
camera.Viewport.Area = new Rect2(0.0f, 0.0f, 1.0f, 1.0f);
cameraSO.Position = new Vector3(0, 0, 5);
cameraSO.LookAt(new Vector3(0, 0, 0));
camera.Priority = 2;
camera.NearClipPlane = 0.05f;
camera.FarClipPlane = 1000.0f;
camera.Viewport.ClearColor = new Color(0.0f, 0.0f, 0.0f, 0.0f);
camera.ProjectionType = ProjectionType.Orthographic;
camera.Layers = SceneAxesHandle.LAYER;
camera.AspectRatio = 1.0f;
camera.OrthoHeight = 2.0f;
camera.RenderSettings.EnableHDR = false;
camera.RenderSettings.EnableSkybox = false;
camera.Flags |= CameraFlag.OnDemand;
renderTextureGUI = new GUIRenderTexture(renderTexture, true);
GUILayoutY layout = panel.AddLayoutY();
GUILayoutX textureLayout = layout.AddLayoutX();
textureLayout.AddElement(renderTextureGUI);
textureLayout.AddFlexibleSpace();
Rect2I bounds = new Rect2I(0, 0, width, height);
sceneHandles = new SceneHandles(window, camera);
renderTextureGUI.Bounds = bounds;
labelGUI = new GUILabel(projType.ToString(), EditorStyles.LabelCentered);
layout.AddElement(labelGUI);
layout.AddFlexibleSpace();
this.panel = panel;
this.bounds = bounds;
NotifyNeedsRedraw();
}
private static extern void Internal_Create(SceneHandles managedInstance, IntPtr parentWindow, IntPtr camera);
private void OnEditorUpdate()
{
UpdateLoadingProgress();
if (HasFocus)
{
if (!Input.IsPointerButtonHeld(PointerButton.Right))
{
if (VirtualInput.IsButtonDown(EditorApplication.DuplicateKey))
{
DuplicateSelection();
}
else if (VirtualInput.IsButtonDown(EditorApplication.DeleteKey))
{
DeleteSelection();
}
else if (VirtualInput.IsButtonDown(viewToolKey))
{
EditorApplication.ActiveSceneTool = SceneViewTool.View;
}
else if (VirtualInput.IsButtonDown(moveToolKey))
{
EditorApplication.ActiveSceneTool = SceneViewTool.Move;
}
else if (VirtualInput.IsButtonDown(rotateToolKey))
{
EditorApplication.ActiveSceneTool = SceneViewTool.Rotate;
}
else if (VirtualInput.IsButtonDown(scaleToolKey))
{
EditorApplication.ActiveSceneTool = SceneViewTool.Scale;
}
}
}
// Refresh GUI buttons if needed (in case someones changes the values from script)
if (editorSettingsHash != EditorSettings.Hash)
{
UpdateButtonStates();
editorSettingsHash = EditorSettings.Hash;
}
// Update scene view handles and selection
sceneGrid.Draw();
ProjectionType currentProjType = camera.ProjectionType;
if (sceneAxesLastProjectionType != currentProjType)
{
sceneAxesGUI.ProjectionType = currentProjType;
sceneAxesLastProjectionType = currentProjType;
}
bool handleActive = sceneHandles.IsActive() || sceneAxesGUI.IsActive();
Vector2I scenePos;
bool inBounds = ScreenToScenePos(Input.PointerPosition, out scenePos);
bool clearSelection = false;
if (AllowViewportInput)
{
if (Input.IsPointerButtonUp(PointerButton.Left))
{
clearSelection = true;
}
else if (Input.IsPointerButtonDown(PointerButton.Left))
{
mouseDownPosition = scenePos;
}
}
else
{
clearSelection = true;
inBounds = false;
}
bool dragResult = false;
if (clearSelection)
{
dragResult = EndDragSelection();
if (sceneHandles.IsActive())
{
sceneHandles.ClearSelection();
}
if (sceneAxesGUI.IsActive())
{
sceneAxesGUI.ClearSelection();
}
}
bool draggedOver = DragDrop.DragInProgress || DragDrop.DropInProgress;
draggedOver &= IsPointerHovering && inBounds && DragDrop.Type == DragDropType.Resource;
if (draggedOver)
{
if (DragDrop.DropInProgress)
{
dragActive = false;
if (draggedSO != null)
{
Selection.SceneObject = draggedSO;
EditorApplication.SetSceneDirty();
}
draggedSO = null;
}
else
{
if (!dragActive)
{
dragActive = true;
ResourceDragDropData dragData = (ResourceDragDropData)DragDrop.Data;
string[] draggedPaths = dragData.Paths;
for (int i = 0; i < draggedPaths.Length; i++)
{
ResourceMeta meta = ProjectLibrary.GetMeta(draggedPaths[i]);
if (meta != null)
{
if (meta.ResType == ResourceType.Mesh)
{
if (!string.IsNullOrEmpty(draggedPaths[i]))
{
string meshName = Path.GetFileNameWithoutExtension(draggedPaths[i]);
draggedSO = UndoRedo.CreateSO(meshName, "Created a new Renderable \"" + meshName + "\"");
Mesh mesh = ProjectLibrary.Load <Mesh>(draggedPaths[i]);
Renderable renderable = draggedSO.AddComponent <Renderable>();
renderable.Mesh = mesh;
if (mesh != null)
{
draggedSOOffset = mesh.Bounds.Box.Center;
}
else
{
draggedSOOffset = Vector3.Zero;
}
}
break;
}
else if (meta.ResType == ResourceType.Prefab)
{
if (!string.IsNullOrEmpty(draggedPaths[i]))
{
Prefab prefab = ProjectLibrary.Load <Prefab>(draggedPaths[i]);
draggedSO = UndoRedo.Instantiate(prefab, "Instantiating " + prefab.Name);
if (draggedSO != null)
{
AABox draggedObjBounds = EditorUtility.CalculateBounds(draggedSO);
draggedSOOffset = draggedObjBounds.Center;
}
else
{
draggedSOOffset = Vector3.Zero;
}
}
break;
}
}
}
}
if (draggedSO != null)
{
if (Input.IsButtonHeld(ButtonCode.Space))
{
SnapData snapData;
sceneSelection.Snap(scenePos, out snapData, new SceneObject[] { draggedSO });
Quaternion q = Quaternion.FromToRotation(Vector3.YAxis, snapData.normal);
draggedSO.Position = snapData.position;
draggedSO.Rotation = q;
}
else
{
Ray worldRay = camera.ScreenPointToRay(scenePos);
draggedSO.Position = worldRay * DefaultPlacementDepth - draggedSOOffset;
}
}
}
return;
}
else
{
if (dragActive)
{
dragActive = false;
if (draggedSO != null)
{
draggedSO.Destroy();
draggedSO = null;
}
}
}
if ((HasContentFocus || IsPointerHovering) && AllowViewportInput)
{
sceneCamera.EnableInput(true);
if (inBounds && HasContentFocus)
{
if (Input.IsPointerButtonDown(PointerButton.Left))
{
Rect2I sceneAxesGUIBounds = new Rect2I(Width - HandleAxesGUISize - HandleAxesGUIPaddingX,
HandleAxesGUIPaddingY, HandleAxesGUISize, HandleAxesGUISize);
if (sceneAxesGUIBounds.Contains(scenePos))
{
sceneAxesGUI.TrySelect(scenePos);
}
else
{
sceneHandles.TrySelect(scenePos);
}
}
else if (Input.IsPointerButtonHeld(PointerButton.Left) && !handleActive && !dragActive &&
draggedSO == null && scenePos != mouseDownPosition)
{
if (isDraggingSelection)
{
UpdateDragSelection(scenePos);
}
else
{
StartDragSelection(scenePos);
}
}
else if (Input.IsPointerButtonUp(PointerButton.Left))
{
if (!handleActive && !dragActive && !dragResult)
{
bool ctrlHeld = Input.IsButtonHeld(ButtonCode.LeftControl) ||
Input.IsButtonHeld(ButtonCode.RightControl);
sceneSelection.PickObject(scenePos, ctrlHeld, new SceneObject[] { draggedSO });
}
}
}
}
else
{
sceneCamera.EnableInput(false);
}
if (AllowViewportInput)
{
SceneHandles.BeginInput();
sceneHandles.UpdateInput(scenePos, Input.PointerDelta);
sceneAxesGUI.UpdateInput(scenePos);
SceneHandles.EndInput();
}
sceneHandles.Draw();
sceneAxesGUI.Draw();
// Must be done after handle input is processed, in order to reflect most recent transform
sceneGizmos.Draw();
sceneSelection.Draw();
UpdateGridMode();
if (VirtualInput.IsButtonDown(frameKey))
{
sceneCamera.FrameSelected();
}
}