I just wanted to take a moment to announce the availability of the OSG Transparency Toolkit:
http://alphapixel.com/content/osg-transparency-toolkit https://github.com/XenonofArcticus/OSG-Transparency-Tool This is a library we developed for a CAD industry client to encapsulate several different transparency methods includig basic sorted and unsorted transparency, and OSG's on FFP Depth Peeling. Here's the description from the first link above: OSG Transparency Toolkit (osgTT) is a library with demo applications that implements multiple transparency techniques in an easy-to-use library with demo applications. osgTT currently offers the following transparency modes: None, Depth Sorted (aka normal OSG transparency), Delayed Blend (an unsorted method) and Depth Peeling (unsorted). The demo application allows you to examine sample models and cycle between the different transparency modes to see the tradeoffs in quality and performance of each. Two transparency modes (Delayed Blend and Depth Peeling) are provided that avoid the potential bottleneck of per-frame z-sorting of drawables. At this time, all modes are implemented using only OpenGL Fixed Function Pipeline capabilities, no shaders or shader generation are required. Depth Peeling is a multipass approach, and the number of passes is configurable on the fly for comparison. Future plans include implementation of a single-pass A-Buffer method as well as a Single Pass Approximated Weighted Average method. -- Chris 'Xenon' Hanson, omo sanza lettere. [email protected] http://www.alphapixel.com/ Training • Consulting • Contracting 3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 • GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL Digital Imaging • GIS • GPS • osgEarth • Terrain • Telemetry • Cryptography • Digital Audio • LIDAR • Kinect • Embedded • Mobile • iPhone/iPad/iOS • Android @alphapixel <https://twitter.com/alphapixel> facebook.com/alphapixel (775) 623-PIXL [7495]
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