For the Scanline renderer, there is only one ActiveShade option: floating, where the ActiveShade rendering appears in its own window.
Note: Physical materials are not supported.
Tip: If you clear the image, you can redisplay it by right-clicking the ActiveShade window and choosing Tools
Initialize or Tools
Update from the lower-right quadrant of the quad menu.
Only one ActiveShade window can be active at a time.
Tip: You can drag and drop materials from the Material Editor to ActiveShade windows as you can with other viewports.
Scanline ActiveShade and Object Selection
If you select an object before you invoke ActiveShade, ActiveShade is done only for that object. This can greatly increase the speed of ActiveShade.
Similarly, once the ActiveShade window is open, the initialize and update steps (whether automatic or manual) are done only for the selected object.
Tip: When an object in an ActiveShade window has a mapped material, select it before you change a map or adjust its parameters.
What Scanline ActiveShade Does and Doesn't Do
For the sake of interactivity, the ActiveShade window is limited in what it can update. An ActiveShade rendering is typically less precise than a final production rendering.
Tip: When you change geometry by transforming it or modifying it, right-click the ActiveShade window and choose Tools
Initialize from the quad menu (lower-right quadrant). This updates the ActiveShade rendering.