Lighting in Ultra Render

Lighting setup is key to producing a quality path traced render. To edit lighting settings, select the "Light set"  item in the objects panel.

Sky Lights

Sky Light refers to the background and atmospheric light produced by the background. 

Unlike in real time render mode, where you can set a separate background plate, in Ultra Render the Sky Light always determines the background setting. This allows for the most realistic rendering. 

Sky light options 

Image -  Select a HDR image from the library or upload your own. These images contain dynamic ranges of light to realistically simulate the light of various environments. 

Sky - This option has 2 modes.

1. Sky Gradient: Apply a 2-colour gradient. 
2. Atmosphere: Create realistic sky lighting with individual settings for dust levels, Rayleigh (twilight effect produced by light scattering), Focus, and Glow.
   
   

Color - Set a solid colour.

Sun

You can enable the sun as an additional source of light when using ultra render. The sun is visible when in view of the camera. 

Angle: change the height of the sun in the sky

Heading: Alter the position of the sun’s path

Ground Plane: Simulates the appearance of a plane at ground level. Shadows will be visible on this plane, and the color is determined by the lighting in the scene.

Add a plane manually using the shapes tool for more control over the texture and colour of your ground plane. 

Ultra Light settings

Visible to camera: when this setting is on, lights will be visible in your render if positioned within the camera’s field of view, or within range of a reflective surface. 

Spread: Area lights and point lights have this option. This adjusts the concentration of the light across the source.