Show the Render Window
The Render window can be invoked/shown in 2 ways:
- Render → Render Current Frame (F12)
- As the title already says, it renders the current frame and shows the Render window.
- Render → Render Animation (CtrlF12)
- Same for Animation.
- Render → Show Render Buffer (F11)
- Pops up the Render window and shows the last rendered image (even if it was in a previously opened & rendered .blend file).
- Render → Play Back Rendered Animation (CtrlF11)
- Similar as for the single frame, but instead plays back all frames of the rendered animation.
Render Window usage
- A - Show/hide the alpha layer.
- Z - Zoom in and out. Pan with the mouse.
- J - Render buffer switch. This allows you to keep two images in the render window, which is very useful for comparing subtleties in your renders. How to use it:
- Press RENDER or F12.
- Press J to show the empty buffer (the one we want to “fill” with the new image). Note that you can keep one image in a buffer and compare it with subsequent renders.
- Make your changes.
- Render again.
- Press J to switch between the two renderings.
- Esc - Cancel a running render process
- LMB - Clicking the left mouse button in the Render window displays information on the pixel underneath the mouse pointer. The information is shown in a text area at the bottom left of the Render output window. Moving the mouse while holding the LMB will dynamically update the information. This information includes:
- Red, Green, Blue and Alpha values.
- Distance in Blender Units from the camera to the pixel under the cursor.