SoGVRSecondaryLUT

InventorModule

genre	VolRendExtensions
status	stable
author	Florian Link
package	MeVisLab/Standard
dll	SoGVR
definition	soGVR.def
see also	SoGVRVolumeRenderer

Purpose

The SoGVRSecondaryLUT module allows to set an additional LUT for the SoGVRVolumeRenderer module. The LUT is available in the GLSL shader and can be used by SoGVRSecondaryVolume and SoGVRTransformedVolume via its name. The module requires either a valid input image/octree volume or manually supplied min/max values because it needs to request the LUT data in a range that matches the range of the incoming dataset so that the lookup in the GLSL shader will work correctly.

Input Fields

inLUT

name: inLUT, type: MLBase

The input LUT.

image

name: image, type: Image

The image that the LUT uses for min/max values.

inVolume

name: inVolume, type: MLBase

The GVRVolume that the LUT uses for min/max values (alternative to the image field).

Output Fields

self

name: self, type: SoNode

a node that should be put in front of the SoGVRVolumeRenderer

Parameter Fields

Field Index

Enabled: Bool	Scaled Data Min: Integer
Filter Lut: Bool	Use Alpha Correction: Bool
Lut Name: String
Manual Original Data Min Max: Bool
Manual Scaled Data Min Max: Bool
Original Data Max: Float
Original Data Min: Float
Scaled Data Max: Integer

Visible Fields

Enabled

name: enabled, type: Bool, default: TRUE

Enables the LUT

Lut Name

name: lutName, type: String, default: secondaryLut

Name of the LUT (this name defines the texture sampler in GLSL and is used in the SoGVRSecondaryVolume and SoGVRTransformedVolume.

Filter Lut

name: filterLut, type: Bool, default: TRUE

Enables linear filtering of the LUT.

Manual Scaled Data Min Max

name: manualScaledDataMinMax, type: Bool, default: FALSE

Enables manual scaling of the LUT.

Scaled Data Min

name: scaledDataMin, type: Integer, default: 0

Defines the scaled data min value.

Scaled Data Max

name: scaledDataMax, type: Integer, default: 255

Defines the scaled data max value.

Manual Original Data Min Max

name: manualOriginalDataMinMax, type: Bool, default: FALSE

Enables manual original data min/max values (otherwise the input image is used).

Original Data Min

name: originalDataMin, type: Float, default: 0

Min value of original data.

Original Data Max

name: originalDataMax, type: Float, default: 4095

Max value of original data.

Use Alpha Correction

name: useAlphaCorrection, type: Bool, default: TRUE

Enables alpha correction on the LUT (so that the LUT's alpha is adapted to the slice distance when rendering).