Look Dev window reference

Look Dev is an image-based lighting tool that contains a viewer to compare assets under different lighting conditions.

To open Look Dev, select Window > Rendering > Look Dev.

For more information on how to use Look Dev, refer to Compare materials in different lighting conditions with Look Dev.

Toolbar

Use the toolbar in the top-left of the window to change which viewing mode Look Dev uses.

Viewport mode Icon Description
Single viewport 1 Single viewport 1 icon Displays the asset in the first environment.
Single viewport 2 Single viewport 2 icon Displays the asset in the second environment.
Both viewports split vertically Vertical split icon Displays the asset in both environments stacked vertically.
Both viewports split horizontally Horizontal split icon Displays the asset in both environments stacked horizontally.
Both viewports split-screen Split-screen icon Displays the asset in both environments with a split screen. The red and blue manipulation gizmo separates the two viewports.
Viewport cameras Viewport camera icon Decouples the cameras from one another, allowing you to manipulate them independently. To align or reset the cameras, select the dropdown. The dropdown options are: Align Camera 1 with Camera 2, Align Camera 2 with Camera 1, and Reset Cameras.

Environment Settings

Property Description
Sky with Sun Sets the HDRI texture that Look Dev uses for the sky lighting when using this environment. For information on how to import an HDRI Texture, refer to Add an environment.
Rotation Sets the offset longitude that Look Dev applies for the whole sky and sun position.
Exposure Sets the exposure that Look Dev uses when it renders the environment.
Sun Position Sets the position of the sun when compositing the shadows. The Sun button automatically places the sun on the brightest spot of the Sky with Sun HDRI texture.
Shadow Tint Sets the color of the tint that Look Dev uses to color shadows.