If you are using LNP with a version of Photoshop older than CS3, or with any other art application, you must set this parameter to match the value of your canvas zoom after you zoom in or out. This parameter was named Image Zoom in older versions. This section will explain what these parameters do, and how to choose appropriate values for your perspective drawings. If you open the Ruler - Perspective preset's Rulers section (by clicking on the little arrow icon), you'll see several configurable parameters. The following video will show you an overview of both of these rulers, and the perspective matching feature. And if you're using a recent enough version, you can then easily have the Linear Perspective parameters automatically set up to match the Vanishing Lines ruler's perspective. Instead, you can set the vanishing points directly, or have them setup automatically by lining up control lines with parallel lines from your scene. That ruler doesn't require you to know or setup any camera parameters. If you are working with an existing image with an unknown perspective setup, and would like to add perspective-correct elements to it, you may want to use the Vanishing Lines ruler instead. You have complete control over the camera setup, and can easily rotate the vanishing lines in 3D to draw objects in any orientation. Your lines then snap to these guides when you draw, helping you quickly construct perspective-correct objects in your scene. It generates a set of guide lines that connect your current pen position to fixed vanishing points. This particular ruler uses a type of projection called Linear Perspective ( Isometric and Fisheye projections are also available as different rulers). Lazy Nezumi Pro's perspective ruler will hopefully make this process faster and easier! Traditionally, setting up for a perspective drawing can be tedious and time consuming, with vanishing points going way off the page, and messy construction lines everywhere.

If you want to draw convincing 3d environments, vehicles, and even people, mastering perspective is a must.

Some sub-features were added in later updates. This ruler was added in version 17.01.06.

Lazy nezumi photoshop