working with rotascoped video

[Adam Trachtenberg]

Yes, you can put the footage in a material (color channel) and then put the material on a background object.

[Adam Guy]

Thanks for the reply. I have just done that but there is still a colour behind it and the quicktime doesn’t play… I know I’m probably doing it wrong but I don’t know why! cheers

[Robert P]

have you turned on the alpha channel in the material editor?

[Joe Bird]

you will also need to use the alpha channel from your rotoscope in the alpha channel in your materials. Also, when working with footage, you need to tell each material channel tha tuses it, how long it is…click on the file name in the mat mngr, you will see the animate button, click that then the calculate button and set it to exact frame. You can actually apply these materials to flat Plane objects within your scene and they will act like 2d characters, with pretty good results with judicious use of the camera…
Cheers

[Adam Guy]

Thanks for getting back to me. I have turned on the alpha channel and set the frames for animation. It now runs through the animation but there is a faint background colour, which is there from the quicktime. How do I get rid of that colour. Can you also tell me how i can resize the quicktime, so I can place in proportion within my composition. Many, many thanks

PS I

[Joe Bird]

The faint color could come from a few places, check your alpha and make certain black is black, zero, nadda, nuthin. Also check that the diffuse channel is off, it will pick up color. As far as resizing the qt material, you can scale it like any other materail using the material menu button, that checkerboardy thing on the left(I forgot it’s official name) If you are putting the materail on a plane and you size it lower than 100%, you will have issues with tiling or no alpha , so you have to balance the size of the object vs the size of the material.

[Adam Guy]

thank you very much for all of your help.