by The Clip Studio perspective ruler is the best built-in perspective tool of any drawing app: a ruler that your strokes snap to. This guide sets up the Clip Studio Paint perspective ruler, shows how to move and snap to it, and then matches it to a camera-accurate Clip Studio Paint perspective grid imported from this site. Celsys documents every option in the Clip Studio Paint manual; this is the working version.
Creating the perspective ruler in Clip Studio
Layer → Ruler/Frame → Create Perspective Ruler. Choose 1-point, 2-point or 3-point and tick "Create new layer" if you want the ruler on its own layer. The ruler appears with an eye-level line and vanishing-point handles.
The other route is the Perspective Ruler sub tool (under Ruler in the toolbar). Draw one line along an edge in your reference, then a second along a parallel edge, and Clip Studio places the vanishing point where they meet. Two more lines set the second point.
Moving it
Switch to the Object tool (O). Drag a vanishing point to move it along the eye level; drag the eye-level line to raise or lower the horizon; drag the guide lines that fan out from each point to rotate them. The small square handle on the eye level moves the whole ruler. Hold Shift while dragging a vanishing point to keep the eye level horizontal.
Snapping
Turn on Snap to Special Ruler (command bar icon, or Ctrl + 4 on Windows, Cmd + 4 on Mac). Strokes now snap to whichever vanishing point is closest to the direction you start drawing. Tap the ruler's handle to switch snapping between points or off. In the layer palette, the ruler icon's context menu lets you show the ruler on all layers.
Importing a Clip Studio Paint perspective grid that matches a real lens
The ruler does not know what lens it represents, so for a shot that needs to look like a 24 mm or an 85 mm, set the grid up here first.
Export a transparent PNG, File → Import → Image into Clip Studio, then use the Perspective Ruler tool to draw along two red lines and two green lines from the grid. The ruler now has the same vanishing points and eye level as the lens-accurate grid, and you can hide the imported image.
Fisheye
Create Perspective Ruler has a Fisheye option that curves the guides up to 180°. For anything wider, or for 6-point views, use the curvilinear grid and import it as a layer.
Related
Photoshop's perspective tools · Procreate's drawing guide · 1-point vs 2-point vs 3-point
Questions
How do I make a perspective ruler in Clip Studio?
Layer → Ruler/Frame → Create Perspective Ruler, choose 1-, 2- or 3-point, and click OK. Or draw two parallel edges with the Perspective Ruler tool (under Ruler) and Clip Studio finds the vanishing point.
Why are my lines not snapping to the ruler?
Check that Snap to Special Ruler is on (the icon in the command bar, or Ctrl + 4 on Windows), that the ruler is on the layer you are drawing on or set to show on all layers, and that the brush has Snap enabled in its tool settings.
Can Clip Studio do fisheye perspective?
Yes: Create Perspective Ruler has a Fisheye option, up to 180°. For wider views and 6-point, use the curvilinear grid here and import it as a layer.