Porting an opengl app to browsers

What is the most common way to port an application so it can run on browsers?

I've always thought that you nee开发者_开发知识库d to make an ActiveX component for this, but when I saw cooliris (cooliris.com), it seems that there must be a better way to do this. Does anyone know?

The cooliris widget thing is done in Flash. And I think they use something like Adobe AIR to convert it to a desktop app.

Yes, use WebGL. It isn't much mature yet, but it promises a lot!

The three possible options I'm aware of have been stated ...

• WebGL
  • Hardware accelerated
  • Just Great
  • Code is quite similar to standard C++
  • Won't work for at least one year, and what about IE ?
• Adobe AIR or competitors
  • Generates desktop or browser app from the same code, it's just a recompilation away
  • No hardware 3D, you'll have to use either a software rasterizer with very few polygons (100 max) or/and clever tricks
• Specialized plug-in
  • Requires a different plug-in for each supported brower : and ActiveX component for IE, a plug-in for FF, another for Chrome... and support for different versions...
  • May share most of the code with the desktop app (only the "bridge" is specialized)

Nowadays, one could use Emscripten which has decent OpenGL support, and will compile C / C++ code for example via LLVM to JavaScript, while converting / emulating OpenGL by WebGL.