Post Processing Effects

It's a part of OpenMoBu project and could be found in OpenMoBu repository on Github

The plugin that applies post effects in your viewport window

List of available effects:

Color correction
Displacement
Depth of Field (DOF)
Film Grain
Fish Eye
Lens Flare
Motion Blur
Screen Space Ambient Occlusion (SSAO)
Vignetting

How To Start

The effects could be applied only in a camera view.

In order to apply effects, you have to create a post process user object which contains all properties. You can do that from Assets Browser or from the Post Process Tool. In Assets Browser the user object is located in Assets / Templates / Shading Elements

The use of python tool will be shown in the next topic, let's do that from assets browser.

Here you can active the desired effects and the whole effect system in order to see the result in real-time in the viewport.

Supported drag'n'drop operations

if you drag camera / light / null, they will connected into Data Camera / Lens Flare Light / DOF Focus Object
if you drag one post process user object into another, the values from on object will be copied into another one
if Camera is assigned in a correspondent property of a post process object, then post processing effect become a local, just for a specified camera
Post procesing effect applies only on user camera and skip any system camera and Perspective as well
Better to not combine Camera Effects (Antialiasing, Depth Of Field) with post processing effects For Antialiasing better to use render option. BUT the option conflicts with Reflection shader, so you will not see reflections!

Default Configuration

Default values for the properties are stored in My Documents \ MB \ 20xx-x64 \ config

Name of a configuration file is < PC Name >.PostProcessing.txt

Python tool to tweak post effects properties.

Effects Common Notes

DOF and SSAO and any other effect which is using depth buffer could be sensible to camera near/far planes
GLSL Shader stores value in single float, so please take care about too big values for the far plane

DOF

In DOF Effect you can manually specify a focal distance.

If Null is assigned in the Focus Object Property, Focal distance will be computed automatically.

When Use Camera DOF Properties is on, then Focal Distance and Focal Range will be taken from Camera Real-Time effects

To increase a quality of DOF, try to insrease values for Samples and Rings

Lens Flare

PosX and PosY are percent of screen size (width and height)

Post Effects and HUD

The post effects modify the final image, where HUD elements are draw as part of it. In order to recover original HUD, the post process plugin has special feature to emulate the HUD drawing on top of post processed image. That is not a full 100% replication of MotionBuilder HUD system, but it covers most of needs with printing out text, rectangles.

Additional features of the plugin

stream view image via UDP socket (used for virtual camera communication), was designed for a Google Tango tablet - Introduction To Virtual Camera
trigger evaluation of Python Script devices during rendering. That feature is always enabled and it helps to trigger Embedded Python Scripts while running an offline rendering.