Raytraced display mode

Tools > Options > View > Display Modes > Raytraced

The Raytraced display mode sets the viewport to a rendered mode with Cycles, a real-time raytracer.

The Raytraced display mode applies Backdrop and Lighting settings from Render properties. The same settings can be found in the Rendering Panel that interacts with the Raytraced viewport.

Limitations: The Raytraced display mode does not display curvature analysis false-colors and vertex colors.

To access the Rendering Panel

To access Cycles options

The Cycles options manage Integrator, Session and Device settings of the Cycles rendering engine.

  1. On the Tools menu, select Options.
  2. In the Rhino Options dialog, select Cycles.

Raytraced display mode HUD

The Raytraced display mode HUD is located at the bottom of the Raytraced viewport.

  1. Start/Pause button

    Pause or resume the rendering.

  2. Lock/Unlock button

    Lock or unlock the view.

  3. Device information

    Click to display the current render device.

  4. Status

    Display the rendering or completed status.

  5. Time elapsed

    The time used for the current rendering till now.

  6. Sample count

    The amount of samples that have been raytraced. Click to change the sample restriction.

    Raytracing will stop when it reaches the sample restriction.

Display mode options


Name of display mode.

Viewport settings


Specifies the viewport background color.

Use application settings

Use settings specified in Appearance -> Color Options.

Solid color

To select a color

Image file

Specifies an image for the viewport background.

Image file name
Gradient 2 colors

Blends between a top and bottom color.

Top color / Bottom color

To select a color

  • Click the color swatch.
Gradient 4 colors

Blends between four colors starting from the corners of the viewport.

Top left color / Top right color / Bottom left color / Bottom right color

To select a color

  • Click the color swatch.
Use render settings

Displays the colors and lighting used by the settings for background specified by the current renderer.


Renders viewport backgrounds using black and a 0.0% alpha value. This works for rendered output and for ViewCaptureToFile.

Shading settings

Shade objects

Sets the viewport to opaque shaded mode.

X-Ray all wires

Shades with isocurves not obscured by objects in front.

Flat shading

Shades the current viewport with no smoothing so the individual render mesh faces are visible.

See: FlatShade.

Shade vertex colors

Shades using an object's vertex colors.

See: ComputeVertexColors .

Allow ground plane display

Turns on the ground plane for the display mode.

Allow environment display

Turns on environment for the display mode.

Use linear workflow

Gamma correction for bitmap images is removed.The gamma correction is applied to the entire finished image. This can do a better job of processing the color in rendered images.

Color and material

For the Rendered display mode, this setting is automatically set.

Rendering material

Shades using rendering material.

Advanced texture preview

Adds the ability to display:

In the following illustration, the object has a wood material that has world coordinate mapping and a decal. With Advanced texture preview turned off, the preview display does not match the rendered output since it does not display the wood texture or the decal.

Advanced texture preview = off (left) and on (right).

Backface settings

Changes the color of the backface (the side opposite of the surface normal direction).

Use front face settings

No color change.

Cull backfaces

Surfaces viewed from the back will be transparent.

Use object's color

Surfaces viewed from the back use the color specified in the object's Properties.


Sets the gloss for the backface material. This can be different from the front face material.


Sets the transparency for the backface material. This can be different from the front face material.

Single color for all backfaces

All backfaces display a specified color regardless of the object color.


Sets the gloss for the backface material. This can be different from the front face material.


Sets the transparency for the backface material. This can be different from the front face material.

Single backface color

Sets a single color for all backfaces.

To select a color

  • Click the color swatch.
Rendering material

Shades using rendering material.

Custom material for all backfaces

Click the Customize button to specify the custom material.


Opens the Custom Object Attributes Settings dialog box.


Specifies which elements will be visible in the display mode.

Show isocurves

Shows object isocurves.

Isocurves on (left) and off (right).

Show tangent edges

Tangent polysurface edges are smooth edges between different faces of a polysurface.

Show tangent seams

Tangent seams are smooth edges that close surfaces such spheres or cylinders.

Shows mesh wires.

Show mesh wires

Toggles visibility of welded mesh edges.

Show curves

Shows curves objects.

Show lights

Shows lights objects

Show clipping planes

Shows clipping planes objects.

Show text

Shows text blocks.

Show annotations

Shows annotations objects.

Show points

Shows points objects.

Show pointclouds

Shows pointclouds objects

Surface edge settings

Edge thickness

Sets the thickness in pixels for surface edges.

Color reduction %

Sets the "fade" effect for surface edges.

Light objects

Use lights on layers that are off

This setting applies to lights that are on turned-off layers and lights that are hidden.

Draw lights using light color

Draws lights using the color of the light rather than the color of the light object.

Lighting scheme

See Lighting scheme settings.

Clipping plane objects

See Clipping plane settings.


See Grid Settings.


See Objects settings.


See Points Settings.


See Curves Settings.


See Surfaces settings.


See Meshes settings.


See Shadows settings.

Other Settings

See Other Settings.

Restore Defaults

Restores the default system values. All custom appearance settings will be lost.

Save options for use on other computers


Save Options settings to a file.


Restore Options settings from a file.

See also

Viewport display modes


Raytrace display mode in Rhino

Raytrace display setting Rhino 6

Glass update to raytrace display

Focal blur in raytrace display mode Rhino v6




Rhinoceros 6 © 2010-2020 Robert McNeel & Associates. 11-Nov-2020