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Overview

This is the manual of Rayscaper, a photorealistic render engine for SketchUp. It explains every part of Rayscaper, with example renders that show what each setting does. New to Rayscaper? Make your first render with the quick start first, it takes two minutes.

Rayscaper renders your SketchUp model live. Click Start Render on the Rayscaper toolbar and the render window opens next to SketchUp and starts rendering. From then on you keep modeling as usual: when you orbit the camera, click a scene tab, move a chair or paint a face, the render follows right away. There’s no export step and no separate scene to keep up to date.

The Rayscaper render window with the render in the middle, the Asset Manager below it and the Scene Editor on the right

The render window shows the render, with the Scene Editor on the right and the Asset Manager below. The Scene Editor holds everything that SketchUp doesn’t know about, such as the lens of the camera, the sky, the shininess of a material and the render settings, in one section per subject. Rayscaper saves these settings in the .skp file, so the model renders the same the next time you open it, also on another computer. See User Interface for a tour of the window, its toolbar and its menus.

Most renders go through the same steps. Each step links to the page that covers it.

  1. Frame the shot. The render shows what the SketchUp camera sees. Set the image size, the lens and depth of field in the Camera section.
  2. Light the scene. Start with the environment: an HDRI, a sky that follows SketchUp’s sun, or a single color. Add lights for lamps, spots and windows at night.
  3. Make the materials real. Every SketchUp material gets a Rayscaper material. Pick its type, such as glass, metal or water, and add textures for roughness and relief. Or drag a ready-made material from the Asset Manager.
  4. Add nature. Scatter fills a lawn, a forest floor or a field with thousands of plants and stones, without making your SketchUp model heavy.
  5. Finish the image. Choose a render method and how many samples to render, then adjust exposure, colors, bloom and glare in post processing. AI denoising cleans up the noise.
  6. Save it. Save the render as a PNG, or as an EXR for further editing, see Saving a render.

Prefer to watch? These short videos show Rayscaper in a real SketchUp session. Each has a scene to download from its page, so you can follow along, also with the free version.

Your first render in two minutes, from the Quick Start: from a SketchUp model to a finished render.

From the Camera page:

Frame your shot: the live link with SketchUp, scene tabs, the image size and Lock Camera.
Lens, focus and projection: focal length, depth of field, panoramas and parallel projection.

Most pages show what each setting does with renders of an example scene, such as the ones below.

  • User Interface: the SketchUp toolbar, the render window, keyboard shortcuts, settings and the Extensions menu.
  • System Requirements: the hardware and software Rayscaper needs, and which GPUs can render.
  • Release Notes: new features, improvements and bug fixes per version.
  • Roadmap: what’s coming next.