SoPostEffectRenderer¶
-
InventorModule
¶ author MeVis Medical Solutions AG
package MeVisLab/Standard
dll SoRenderers
definition SoRenderers.def
Purpose¶
Introduction¶
The SoPostEffectRenderer
module is the main renderer for the screen-space post-processing framework (see GLSL Post-Processing Effect Framework
).
It collects all effects that are placed into the scene in front of it and renders them from left to right.
Buffers¶
All buffers that are created live inside this module, not inside of the effects. Buffers that are unused after re-rendering are automatically removed.
Buffers are identified by their name. Default buffers generated by the SoPostEffectMainGeometry
module are:
- colorBuffer: the main RGBA color buffer
- depthBuffer: the main depth buffer
- normalBuffer: the normal buffer, encoded into RGB, only when requested by an effect
- emissiveBuffer: the emissive buffer containing unlit emissive colors for glow effects
Additional buffers are generated by the various effect modules, have a look at the
GLSL Post-Processing Effect Framework
for a list of modules.
The SoPostEffectRenderer
itself just renders the resulting buffers named “colorBuffer”
and “depthBuffer” to the default Open Inventor framebuffer.
Super-Sampling¶
This module provides super-sampling by rendering to buffers that are a multiple of the main framebuffer. Super-sampling requires a large amount of memory and performance (essentially the super-sampling factor squared, so super-sampling 2x2 means buffers and processing time that are four times larger). Currently, super-sampling does not adjust line width and filter sizes of the various effects, so lines and edges will become thinner. In the future, we may provide an option to automatically adjust this when super-sampling is enabled.
Consider using the module SoPostEffectAntiAliasing
instead of using super-sampling.
Parameter Fields¶
Field Index¶
Color Precision : Enum |
Super Sampling : Enum |
Debug Buffer Name : String |
|
Debug Buffers : Bool |
|
Debug Pixels : Bool |
|
Debug Profiling : Bool |
|
Debug Temp Buffers : Bool |
|
Enable Stencil Buffers : Bool |
|
resetBuffers : Trigger |
Visible Fields¶
Debug Buffers¶
-
name:
debugBuffers
, type:
Bool
, default:
FALSE
¶ If checked, all currently existing buffers are rendered. The top shows RGB, while the bottom shows the alpha channel.
Enable Stencil Buffers¶
-
name:
enableStencilBuffers
, type:
Bool
, default:
TRUE
¶ If checked, stencil buffers in all depth buffers (using depth and stencil textures) are enabled.
Super Sampling¶
-
name:
superSampling
, type:
Enum
, default:
SuperSampling_Off
¶ Defines the super-sampling factor (consider using
SoPostEffectAntiAliasing
instead).
Values:
Title | Name | Description |
---|---|---|
Off | SuperSampling_Off | Off by default; no super-sampling is performed. |
2x2 | SuperSampling_2x2 | Super-sample by factor 2. |
3x3 | SuperSampling_3x3 | Super-sample by factor 3. |
4x4 | SuperSampling_4x4 | Super-sample by factor 4. |