Back Top Next Kolloquium - DVI - F.Leymarie
2D shape Morphing & Genesis
Benjie Kimia, Ilana Frankel (Computer Science / Graphics) & Frederic Leymarie
A paradigm for shape creation, deformation, manipulation, updating, ... and the study of evolution through transitions (and eventually morphometric dynamics).
How to:
1. Draw a "simple" axis (with the mouse, in a gesture-based manner);
2. Bend an axis;
3. Compose 2 shapes : bring a part or on another one and unify their representation;
4. De-compose 2 shapes : e.g. separate a protrusion from a "corps"
5. Pull out a protrusion (of a certain shape, along an axis);
6. Push in an indentation
7....
Interactive 3D rendering through Global Visibility computation
Frederic Leymarie & ....
Interactive 3D sketching
Loring Holden, Bob Zeleznik, John Hugues & Frederic Leymarie (Graphics @ Brown)
Sketching is often a great way to communicate ideas with the implicit knowledge that the idea is in the formative stages. It has many advantages:
Speed is high because one is using approximate visual images with simple tools (pencil and paper).
There is no need for precision or specialized knowledge and, in fact, precision can confuse a viewer into thinking that an idea is more complete and immutable than it actually is.
Also included is the ease of low-level correction and revision.
Most 3D computer modeling systems are good at generating arbitrary views of precise 3D models and support high-level editing and revision.
The SKETCH application attempts to combine the advantages of both hand-drawn-representation and precise computer modeling in order to create an environment for rapidly conceptualizing and editing approximate 3D scenes.
To achieve this, SKETCH uses simple non-photorealistic rendering (NPR) and a purely gestural interface that is based on simplified line drawings of primitives and allows all operations to be specified within the 3D world.
Sketching in Perspective
Interactive Single view calibration