When using the Analysis tools in Photoshop, you will need to establish the scale of measure. Go under the Analysis menu, choose Set Measurement Scale, ...
In Vanishing Point, you can take advantage of the new measurement tools by measuring something in three dimensions. You simply grab the Measure tool (R) ...
Let's say that you are using the Magic Wand tool, but would rather be using Photoshop's Quick Selection tool. No problem! Just press-and-hold the Shift ...