Spotlight

Inserts a spotlight object into the model.

Light objects do not render or shade.

Use the Properties
command to set the light’s color and on or off state. Darker colors, like gray, light the scene less.

Steps:

  1. Pick

    the base center.

  2. Pick the base radius.

  3. The spotlight object appears as a cone shape. Its light appears only in full renderings of the targeted objects.

    Rhinoceros spotlight 001 Lights

Notes

  • Turn on the spotlight’s control points and move or drag the control points to edit the spotlight’s direction, length, beam angle, hotspot angle, and position.

  • Spotlights with narrower cones produce more detail than spotlights with wider cones.

  • The cone for the spotlight represents the direction of the light, not the range of the light.

  • The brightness of the light from the spotlight remains constant, even as you move away from the tip of the cone.

  • The length and width of the spotlight together do control the shape of the infinite cone in space that is illuminated by the spotlight.

  • Objects near the center axis line of the cone are illuminated the most brightly. That bright full illumination continues for half of the width of the cone, and then slowly drops off to nothing at the very outside of the cone.

  • Spotlight hardness controls the fully illuminated region. You can either shrink it or expand it so that there is no drop-off at all. The easiest way to see what this does it is to create a plane with a single spotlight shining on it, and then play with the spotlight hardness parameter to see what it does.

Options

The options for drawing a spotlight are the same as the Cone
command.

Rhinoceros Spotlight Lights

Standard > Create Spotlight

Lights > Create Spotlight

Rhinoceros Menu2 Lights

Render > Create Spotlight

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EditLightByLooking

Temporarily sets the view through a spotlight as if it were a camera. The temporary camera point is the light cone apex and the camera target is the center of the light cone base.

Steps:

  1. Select

    a spotlight.

  2. Use Rendered Viewport
    mode to see the effect of the light on the object.

  3. Use standard view manipulation tools (Pan
    , Zoom
    , etc.) change the orientation and shape of the spotlight cone.

  4. When the light “sees” the desired part of the scene, press Enter

    .

  5. The view reverts to what it was at before the command.

    The light adjusts to shine on what the temporary light-camera was seeing at the end of the command.

Options

NewSpotlight

Creates a new light with the current view characteristics instead of modifying an existing light.

Rhinoceros editlightbylooking Lights

Light Tools > Edit light by looking

Rhinoceros Menu2 Lights

Render > Edit Light by Looking

Rhinoceros Gray Book Open Lights Related topics…

BounceLight

Adds lights or helper lines to the model based on user-defined highlight locations.

Steps:

  1. Select

    a light.

  2. Select an object for the light to shine on.

  3. Pick

    a location on the selected object that the light will hit.

  4. The light will be directed toward the surface at the selected spot.

To place and direct a new light or helper line

  1. Press Enter

    .

  2. Click an option.

Options

Type

Specifies the type of light.

DirectionalLight

Rhinoceros BounceLight 005 Lights

Places and directs a directional light.

PointLight

Rhinoceros BounceLight 006 Lights

Places and directs a point light.

Spotlight

Rhinoceros BounceLight 004 Lights

Places and directs a spotlight.

Line

Rhinoceros BounceLight 007 Lights

Places a helper line segment normal to the surface. Helper lines are useful for placing objects that show in reflections when the scene is raytraced.

Color

Click the option to open the Select Color dialog box.

Type C to set the RGB numbers.

Rhinoceros BounceLight Lights

Lights > Bounce Light

Rhinoceros Menu2 Lights

None

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DirectionalLight

Rhinoceros directionallight 001 Lights

Inserts a light that simulates the sun defined with parallel rays and a direction.

A directional light shines toward a specified direction. The location of the light does not matter: the light object merely indicates the direction the light shines.

Steps:

  1. Pick

    a location at which to aim the directional light.

  2. Pick a location for the directional light.

Rhinoceros directionallight Lights

Lights > Create Directional Light

Rhinoceros Menu2 Lights

Render > Create Directional Light

Rhinoceros Gray Book Open Lights Related topics…

LinearLight

Rhinoceros linearlight 001 Lights

Inserts a light that imitates a fluorescent tube into the model.

Steps:

  1. Pick

    the start of the light.

  2. Pick the end of the light.

Rhinoceros linearlight Lights

Lights > Create Linear Light

Rhinoceros Menu2 Lights

Render > Create Linear Light

Rhinoceros Gray Book Open Lights Related topics…

RectangularLight

Rhinoceros rectangularlight 001 Lights

Inserts into the model a rectangular light object that emits light from an array of light points in one direction.

Steps:

  1. Pick

    the light’s start point.

  2. Pick a the light’s length.

  3. Pick the light’s width.

Rhinoceros rectangularlight Lights

Lights > Create Rectangular Light

Rhinoceros Menu2 Lights

Render > Create Rectangular Light

Rhinoceros Gray Book Open Lights Related topics…

PointLight

Rhinoceros pointlight 001 Lights

Inserts a light object into the model that emits light from a single location in all directions (omni light).

Steps:

  • Pick

    the light’s location.

Rhinoceros pointlight Lights

Lights > Create Point Light

Rhinoceros Menu2 Lights

Render > Create Point Light

Rhinoceros Gray Book Open Lights Related topics…

SetSpotlightToView

Match spotlight direction to the viewport camera direction.

Resets an existing spotlight or adds a new one so that the light point and target point (center of base circle) correspond to the camera point and its target point. This provides a convenient and accurate way to place or add a spotlight so that it is shining exactly in the right place.

See Also: SetViewToSpotlight

Steps:

  • Select

    a spotlight.

Options

NewSpotlight

Creates a new light with the current view characteristics instead of modifying an existing light.

Rhinoceros setspotlighttoview Lights

Light Tools > Set spotlight to view

Rhinoceros Menu2 Lights

Render > Set SpotLight to View

Rhinoceros Gray Book Open Lights Related topics…

 

Lights