Order-Independent (O-I) Transparency
Render transparent & opaque objects in any order
- “Don’t want to sort primitives”
- Can’t sort subpixels
Useful with textures (e.g., trees) and compositing
David Kirk, NVIDIA, 1998 Eurographics/ SIGGRAPH keynote: Order-independent transparency is an “unsolved problem and opportunity for high-quality high-performance 3D graphics on a PC”