Compositing in 3D Space with Action > About the Perspective Grid >

# Aligning an Object with a Perspective Grid

To align an object with a perspective grid:

1. Click Media.
2. In the Media menu, select the media you want to use for the perspective grid (you can change the media later in the Perspective Grid menu).

   This media becomes the reference for the perspective grid alignment.

3. Do one of the following:
   - Drag the Perspective Grid node from the node bin and place it in the schematic.
   - Drag the Perspective Grid node from the node bin and place it where you want it in Result view.
   - Double-click the Perspective Grid node. You do not need to be in Schematic view to add a node in this manner.

   The Perspective Grid object is added to the schematic. In the Schematic view, the number in brackets next to the name of the node indicates the media used for the perspective grid reference.

   To specify different perspective grid reference media, select the media in the Media menu, then click Apply, or enter a different media number in the Use Media field of the Perspective Grid menu.

4. With the Perspective Grid object selected in the schematic, select Object view from the View box to see the grid and the selected media.
5. While in Object view, drag each of the four corners of the rectangle to the desired location. The grid automatically aligns to the new perspective.
   NoteWhen dragging one of the corner points of the rectangle, if your desired location cannot be computed (for example, if a point goes past another point on the plane), the location is remembered with a dotted line and red circle. Once you move other corners, your original location may now become viable, and the rectangle and grid align properly.

   - If Allow Adjustments is selected in the Lock Camera box , the target camera FOV and position adjusts to fit the perspective set by the perspective grid. If Lock Camera is selected in the Lock Camera box, the perspective grid does not adjust the target camera.
6. Once you are satisfied with the alignment of the perspective grid rectangle, parent an object to the Perspective Grid node. The object inherits the perspective transformation of the Perspective Grid node. Switch to Result view (F4) to see the complete scene.
   NoteYou can also manipulate the perspective grid in the Result view, provided that Lock Camera is not enabled in the Perspective Grid menu, or the perspective grid camera is the same as the Result camera.