SoPostEffectAdditionalGeometry

InventorModule

author	MeVis Medical Solutions AG
package	MeVisLab/Standard
dll	SoRenderers
definition	SoRenderers.def

Purpose

The SoPostEffectAdditionalGeometry module allows to render additional geometry on top of already existing geometry rendered by SoPostEffectMainGeometry.

The main purpose of this module is to render transparent geometry and volume rendering on top of the existing buffers, since many of the effects (glow, edges, …) only make sense for opaque geometry.

So the typical order will be:

• SoPostEffectMainGeometry to render opaque geometry
• effects like SoPostEffectGlow or SoPostEffectEdges
• SoPostEffectAdditionalGeometry to render SoGVRVolumeRenderer or SoDepthPeelRenderer scenes
• and finally SoPostEffectAntiAliasing to get anti-aliasing.

The module typically does not modify the main depth buffer, but copies it instead. This can be configured differently if desired.

Input Fields

child

name: child, type: SoNode

The input scene.

Parameter Fields

Field Index

boundingBoxCaching: Enum	pickCulling: Enum
Clear Color Buffer: Bool	renderCaching: Enum
Clear Depth Buffer: Bool	renderCulling: Enum
Color Buffer Name: String	Source Depth Buffer Name: String
Copy Source Depth Buffer: Bool
Depth Buffer Name: String
Enabled: Bool
Mode: Enum

Visible Fields

Enabled

name: enabled, type: Bool, default: TRUE

Enables/disables the effect.

Mode

name: mode, type: Enum, default: ExistingDepthBuffer

Values:

Title	Name
Temporary Depth Buffer	TemporaryDepthBuffer
Existing Depth Buffer	ExistingDepthBuffer
New Depth Buffer	NewDepthBuffer

Copy Source Depth Buffer

name: copySourceDepthBuffer, type: Bool, default: FALSE

Enables copying the source depth buffer (so that the additional geometry gets clipped by the given opaque geometry).

Source Depth Buffer Name

name: sourceDepthBufferName, type: String, default: depthBuffer

Choose the source depth buffer.

Clear Color Buffer

name: clearColorBuffer, type: Bool, default: FALSE

Enables clearing of the color buffer. Only makes sense if rendering to a new color buffer.

Clear Depth Buffer

name: clearDepthBuffer, type: Bool, default: FALSE

Enables clearing of the depth buffer, not possible if copying from a source buffer is chosen.

Color Buffer Name

name: colorBufferName, type: String, default: colorBuffer

Selects the color buffer name.

Depth Buffer Name

name: depthBufferName, type: String, default: depthBuffer

Select the depth buffer name.

Hidden Fields

renderCaching

name: renderCaching, type: Enum, default: AUTO

Values:

Title	Name
On	ON
Off	OFF
Auto	AUTO

boundingBoxCaching

name: boundingBoxCaching, type: Enum, default: AUTO

Values:

Title	Name
On	ON
Off	OFF
Auto	AUTO

renderCulling

name: renderCulling, type: Enum, default: AUTO

Values:

Title	Name
On	ON
Off	OFF
Auto	AUTO

pickCulling

name: pickCulling, type: Enum, default: AUTO

Values:

Title	Name
On	ON
Off	OFF
Auto	AUTO