http://www.openendedgroup.com/field/

Field is a development environment for experimental code and digital art in the broadest of possible senses. While there are a great many development environments and digital art tools out there today, this one has been constructed with two key principles in mind:

• Embrace and extend — rather than make a personal, private and pristine code utopia, Field tries to bridge to as many libraries, programming languages, and ways of doing things as possible. The world doesn’t necessarily need another programming language or serial port library, nor do we have to pick and choose between data-flow systems, graphical user interfaces or purely textual programming — we can have it all in the right environment and we can both leverage the work of others and take control of our own tools and methods.

• Live code makes anything possible — Field tries to replace as many “features” with editable code as it can. Its programming language of choice is Python — a world class, highly respected and incredibly flexible language. As such, Field is intensely customizable, with the glue between interface objects and data modifiable inside Field itself. Field takes seriously the idea that its user — you — are a programmer / artist doing serious work and that you should be able to reconfigure your tools to suit your domain and style as closely as possible.

http://www.theprofiler.be/

Grasshopper is a graphical algorithm editor tightly integrated with Rhino’s 3-D modeling tools.

http://www.grasshopper3d.com/

Forget papervision (and it’s processor hogging code)

O3D is an open-source web API for creating rich, interactive 3D applications in the browser. This API is shared at an early stage as part of a conversation with the broader developer community about establishing an open web standard for 3D graphics.

But if you have code related issues, or are just looking for good tutorials, not just on Papervision3d but on flash/flex in general go to Dreaming in Flash , Papervision3d Daily big brother.