This Plugin gives access to local connected Webcams. The Plugin grabs a single Webcam Image and copies the pixel data in an ordinary Unity3D Texture which can be used by any Unity3D Shader. It's possible to grab a single image or a whole webcam stream.
A known performance issue appears when using higher cam-resolutions. That's because the Unity3D function SetPixel() for every pixel of the webcam image is called every frame. If someone has an idea to speed up the transfer between cpu and gpu memory, please let me know.
A free beta version is available on our website: http://produktion.weltenbauer.com on the "entwicklungen." section.
This project uses the CodeVis VidCap library.