Lights in expert mode
Lights in expert mode
Embedded Files
Once you've taken control over Predict Unity, you can enable the Expert Mode to have an even more precise control over the definition of the elements in your scenes.
The Expert Mode can be enabled in the Interface section of the PredictSuite preferences.
Spectrums and Spectral Images range and number of channels
Spectrums and Spectral Images range and number of channels
Just like materials, some lights require the definition of spectrums. Measured spectrums range and number of channels can be overridden to reduce their memory size.
See the expert materials section for more details.
HDRI textures gamma
HDRI textures gamma
When the expert mode is enabled, environment using a skybox of type "RGB Panoramic" have an additional Gamma field. This value defines the gamma correction applied to the image.
By default, when the expert mode is not enabled, a gamma of 2.2 is used for textures of type *.hdr or *.exr, and a gamma of 1 is used for all other textures.
Light direction
Light direction
Area lights have a Light Direction field that defines whether the light should be oriented by the local normals of the geometry (figure A, example A) or the instance’s up (Z-)axis (figure B, example B).
By default, area lights with an intensity of type Measured Display should use the geometry normal frame, and all other lights should use the instance local frame.
https://en.wikipedia.org/wiki/Normal_(geometry)
Area light defined in Unity, Z axis pointing towards the blue arrow
Example A : Same area light, light direction is defined by the Geometry normal frame : the light emits along the local normals of the sphere.
Example B : Same area light, light direction is defined by the Instance local frame : the light emits along the instance Z axis.
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