I have read about the pannini projection, which involves (I think) projecting a scene onto a cyclinder instead of a rectangle.

How can I implement this projection in a vertex shader?

Blinky is using lenses and globes, but I don't think it's what I am looking for. The lua script for the pannini projection is not commented https://github.com/shaunlebron/blinky/blob/master/game/lua-scripts/lenses/panini.lua

As explained on http://tksharpless.net/vedutismo/Pannini/ the projection works (if I understand it well), by projecting geometry on a cylinder, and then unrolling that cylinder on screen.

I have read about the pannini projection, which involves (I think) projecting a scene onto a cyclinder instead of a rectangle.

How can I implement this projection in a vertex shader?

Blinky is using lenses and globes, but I don't think it's what I am looking for. The lua script for the pannini projection is not commented https://github.com/shaunlebron/blinky/blob/master/game/lua-scripts/lenses/panini.lua

As explained on The Pannini Projection, it works (if I understand it well), by projecting geometry on a cylinder, and then unrolling that cylinder on screen.

I have read about the pannini projection, which involves (I think) projecting a scene onto a cyclinder instead of a rectangle.

Is there any readings/tutorial/equation/math explaining how to implemented this projection in a vertex shader?

Blinky is using lenses and globes, but I don't think it's what I am looking for. The lua script for the pannini projection is not commented https://github.com/shaunlebron/blinky/blob/master/game/lua-scripts/lenses/panini.lua

As explained on http://tksharpless.net/vedutismo/Pannini/ the projection works (if I understand it well), by projecting geometry on a cylinder, and then unrolling that cylinder on screen.

http://tksharpless.net/vedutismo/Pannini/images/120deg-panini-construction-3.png

I have read about the pannini projection, which involves (I think) projecting a scene onto a cyclinder instead of a rectangle.

How can I implement this projection in a vertex shader?

Blinky is using lenses and globes, but I don't think it's what I am looking for. The lua script for the pannini projection is not commented https://github.com/shaunlebron/blinky/blob/master/game/lua-scripts/lenses/panini.lua

As explained on http://tksharpless.net/vedutismo/Pannini/ the projection works (if I understand it well), by projecting geometry on a cylinder, and then unrolling that cylinder on screen.