Background
-- Background Settings --
Background Type Background Shaders
- None - Disable Background use.
- Image - Use with a HDR or EXR file.
Enable Use IBL and enter the path to the image before selecting Preview. - Gradient - Enables a gradient background type composed of two sky colors above the horizon and two colors below it
- Sun Sky - Enables a background type that approximates the full spectrum of daylight for various atmospheric conditions. Uses colors differently than the more advanced Dark Tide Sun Sky.
- Dark Tide Sun Sky - Enables a background type that approximates the full spectrum of daylight for various atmospheric conditions.
- Constant - Enables a background type that casts light with a single color.
Color
- Color to use for Constant background shader.
Power - Power
of light cast by the background.
Transparent -
Render Background as Transparent.
Materials
Transparent Refraction - Materials refract the Transparent Background.
Transparent must be selected for this option to
work.
Preview - Makes
a D3D Preview in the Workspace scene by inserting a Sphere and Lights if Use IBL is enabled.
The Sphere and Lights are inside the
YafaRay4tS.RsObj, and are not used by YafaRay.
Preview
Scale - Sets
the size of the Preview Sphere.
Casts
Shadows -
Background light casts shadows.
- Image HDRI/IBL -
Use IBL - Use
the background as a Lighting Source.
Probe - Sets
background image type to Light Probe.
Sphere - Sets
background image type to Spherical Projection.
Smart Blur -
Reduce noise when using HDRI textures for lighting.
IBL samples -
Number of samples to be taken when doing lighting calculations from background
image.
Rotation -
Horizontal rotation of background image.
- Gradient -
Sky - Zenith color.
Ground - Ground color.
Sky Horizon - Sky horizon color.
Ground
Horizon - Ground
horizon color.
-Sun Sky -
Select -
Select the light inside the YafaRay node used to represent the Sun.
It can be moved but not rotated. It always points
to the center of the scene.
# To Sun -
Transfers the Sun Direction numbers to the position of the Preview Sun Light.
# From Sun -
Transfers the Sun Light position from the Preview Sun Light to the Sun
Sun Casts
Shadows - Enables Sun Sky shadows
Use Sun -
Enables Sun
Sun
Direction - X, Y, Z component of the Suns vector position.
Power -
Amount of Sun light added to the scene.
Background
Light - Enables background light calculations.
Night -
Renders the scene with the Sun acting as the Moon.
Caustic
Photons - Enables the generation in the Photon Map.
Diffuse
Photons - Enables the generation in the Photon Map.
Turbidity
- Controls the density of particles in the air. The higher the value the more
sunlight will be diffused into the sky.
Horizon
Brightness - Controls the brightness of the horizon colors.
Spread
- Controls the edge transition of the horizon.
Sun
Brightness - Controls the brightness of the sun.
Sun Size
- Controls the size of the sun.
Backscatter
- Controls the sun's color appearance and the halo around it.
Samples
- Reduces Noise and better glossy Reflection.
Color Space - Color processing types for the Background.
- CIE (D50)
- CIE (E)
- sRGB (D50)
- sRGB (D65)
Exposure -
Lighting multiplier.
Brightness -
Controls the brightness of the sky.
Altitude -
Adjustment relative to the Background center.
If Altitude increases, the Background Horizon
lowers.
- Fog -
Fog Type - Selects the fog types:
- None - Disables Fog.
- Scatter - Enables Scatter.
- Sky - Enables Sky.
Step Size - Sets the step size value.
Scatter
Adaptive
- Turns adaptive fog calculation on.
Optimize
- Turns optimize on.
Sky
Turbidity
- Fog density.
Alpha -
Fog alpha parameter.
Sigma -
Fog sigma parameter.