Panda3D is a 3D engine: a library of subroutines for 3D rendering and game development. The library is C++ with a set of Python bindings. Game development with Panda3D usually consists of writing a Python or C++ program that controls the Panda3D library.
Panda was created for commercial game development, and its primary users
are still commercial game developers. Because of this, Panda3D needs
to emphasize four areas: power, speed, completeness,
and error tolerance. Everyone knows what power and speed
are. But completeness and error tolerance deserve some extra commentary.
Completeness means that Panda3D contains tons of unexciting but essential
tools: scene graph browsing, performance monitoring, animation optimizers,
and so forth. These things may not be sexy,
and as a result, open-source engines often don't have them. But when
you're serious about getting work done, and not just playing, these
tools need to be there.
Error tolerance is about the fact that all game developers create bugs.
When you do, you want your engine to give you a clear error message
and help you find the mistake. Too many engines will just crash if
you pass the wrong value to a function. Panda3D almost never crashes,
and much code is dedicated to the problem of tracking and isolating
Finally, to come back to power and speed: the best way to gauge Panda3D's
capabilities is to take a look at the Sample Programs. These are
short programs that demonstrate a sampling of Panda3D's capabilities.
The screenshots have frame-rates in the upper-right corner, taken on
a Radeon X700.
Panda3D was developed by Disney for their massively multiplayer online game, Toontown. It was released as free software in 2002. Panda3D is now developed jointly by Disney and Carnegie Mellon University's Entertainment Technology Center.
You can read more about Panda3D's Features.
Panda3D is not a Beginner's Tool or a Toy
To successfully use Panda3D, you must be a skilled programmer. If you do
not know what an "API" is, or if you don't know what a "tree"
is, you will probably find Panda3D overwhelming. This is no
point-and-click game-maker: this is a tool for professionals. While It is important to point that out so you have accurate expectations, it's also relevant to be aware that Panda3d is one of the easiest and most powerful engines you will ever use, and we welcome your participation.
If you are just getting started with programming,
we suggest that your best option is to start with a class on
programming. Alternately, you could try teaching yourself using a training
tool like Alice, also from CMU. While on the discussion of tools, it should be noted here for reference that "Scene Editor" is a very useful tool for constructing components of your panda app and should you wish to consider trying them once you are comfortable with using panda, then you can find information about them in the manual at section VIII: H .
Some people have seen screenshots of children's games written in Panda3D,
and concluded that Panda3D is graphically limited. Not so.
Developers of children's games often choose not to use shaders or
other advanced graphics, because children often own older hand-me-down
computers. But Panda3D supports the full range of what modern engines
should: it provides convenient support for normal mapping, gloss mapping,
HDR, cartoon shading and inking, bloom, and a number of other things.
It also allows you to write your own shaders, making it capable of
People sometimes have the mistaken impression that Panda3D is written
in python, which would make it very slow. But Panda3D is
not written in python - it's written in C++. The python is just for
scripting, developers usually write the performance-intensive bits
in C++. To see what kind of framerate
a small Panda3D program typically gets, take a look at the screenshots
of the Sample Programs.
Those were taken using a Radeon x700.
Of course, only a sample program can run at 400fps like that, but
but for a real game, 60fps is quite attainable. One caveat, though:
to get that kind of performance, you need to understand 3D cards and
3D performance optimization. It doesn't happen automatically. Panda3D
includes profiling tools you need to hit 60fps.
Panda3D's Software License
Since version 1.5.3, Panda3D has been released under the so-called "Modified BSD license," which is a free software license with very few restrictions on usage. In versions 1.5.2 and before, it used a proprietary license which was very similar in intention to the BSD and MIT licenses, though there was some disagreement about the freeness of two of the clauses. The old license can still be accessed here.
Although the engine itself is completely free, it comes with various third-party libraries that are not free software. Some of them (like FMOD) even restrict you from using it in commercial games, unless you have a licensed copy of FMOD. Because of this reason, Panda3D makes it easy to disable or remove these restricted third-party libraries, and most of the time it offers an alternative. For example, instead of FMOD it also comes with OpenAL which you can use instead.
You can read Panda3D's License.
Who is Working on Panda3D
There are a number of developers in the commercial and open-source community. Currently, besides the active contributions from the open-source community, the two most active members of the development community are Disney and the Entertainment Technology Center at Carnegie Mellon. Because both organizations have specific goals, Panda3D must necessarily serve both:
- Disney's primary interest in Panda3D is commercial. Panda3D is being used in the development of a number of Disney games and amusement-park exhibits. To serve Disney's needs, Panda3D must be a fully-featured engine, capable of all the performance and quality one expects in any 'A-grade' commercial title.
- The Entertainment Technology Center's primary goal is education. To serve the Entertainment Technology Center's needs, Panda3D must be well-suited for use in student projects. Since students have a unique talent for causing crashes, bulletproof reliability is needed. Since projects only last one semester, the learning curve must be very short, and prototyping must be very rapid.
As it turns out, the two sets of goals are complementary. The rapid development and high reliability needed by the Entertainment Technology Center are also highly advantageous in a game-development studio, since they lower development time and costs. The good visual quality and full feature set needed by Disney to make a professional-quality game also turn out to be useful in a university setting: with a broad range of features at their disposal, students can explore their creativity more fully than they could with a more limited engine.
The most supported language is Python. Though you can use C++ too, the documentation is mostly aimed at Python use.
The Introductory Chapter
This introductory chapter of the manual is designed to walk you through
some of the basics of using Panda3D. This chapter is structured as a
tutorial, not as a reference work.