PI-VR - VRED Professional 4.2 - PI-VR GmbH

VRED Documentation
You are here: Modules > Material Editor > Materials Tab > TrueLight Materials > SphereEnvironment Material
SphereEnvironment Material
SphereEnvironment Material - creates a
SphereEnvironment material. SpehereEnvironment
materials are needed by every Truelight material.
They deliver have the IBL lighting model for each
Truelight material they are assigned to embedded.
The lighting of the Truelight materials can be adjusted
with the settings of the SphereEnvironment material.
Each SphereEnvironment material can be assigned as
an input node in the Environment tab of each
Truelight material. The SphereEnvironment Material is
a single sided shader in OpenGL rendering mode.
Environment - loads the HDR image, that will
be used as light source. The HDR image will
also be used as environment, which will be
reflected on reflective surfaces In OpenGL
rendering. In Raytraced Rendering the 3D
space will be reflected in the surfaces.
Exposure - sets the HDR image´s exposure
level. The higher the exposure level is the
longer series of shutter cycles which will be
used to calculate the image´s light intensity.
Gamma - encodes the linear luminance values
into digital image file values. Gamma encoding
helps to map data (both analog and digital)
into a more perceptually uniform domain.
Hue -Shift - shifts all colors in the HDR image uniformly through the Hue color range.
Contrast - separates the light and dark color value further from each other.
Brightness - raises the color value of the whole HDR image.
Saturation - sets the HDR image´s satureation.
Reflected Saturation - sets the HDR image´s saturation when the HDR image is being
reflected in any surface.
Transformation - with the transformation parameters the source of the spherical projection of
the SphereEnvironment material can be set.
Size - sets the SphereEnvironment material´s projection sphere. All objects that are outside of
the projection sphere and are using a Truelight material, that have this SphereEnvironment
Material as an input channel, will not be rendered properly. The size defines the radius of the
projection sphere. The projection sphere must enclose all objects using a material, that has
this SpehereEnvironment material as environment shader assigned.
Center - defines the projection sphere´s center position.
Get Center - sets the projection sphere´s center. To center the Projection pivot automatically,
select an object and press "Get Center". Then the selected object`s center will be used as
projection sphere`s pivot.
Rotate X, Y, Z - sets the SphereEnvironment Material´s orientation.
Scale x, Y, Z - sets the SphereEnvironment Material´s size. with the scale value the image
projection can be stretched and squashed on any axis.
Create Lightsources - opens a menu for positioning 3D light sources in the scene. The light
sources will be positioned inside of the projection sphere of the SphereEnvironment material