creating animated textures for scratcher lottery tickets, mapped onto 3D

Scratch Me - the tutorial
step 7 - Bluescreen Compositing

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step 7

Bluescreen Compositing

Now you have all pieces you need to quickly complete the compositing with bluescreen:

the front animation (scratch me), with blue progressive paint, in any format (DWA, Image seuqence or AVI)
the back animation (you win) as a BMP image sequence

With that, start by loading the front animation (the one containing the progressive blue paint)

Then, return to the Timeline editor, and scroll down to the group called

"Composite with Sequence"

Select 'Bluescreen sequence'.

There are several sliders for fine tuning the blue threshold to match. In most cases you can leave these at their default values.

Click the 'Select Sequence...' button:

into 3D: draw a shape, and see it
automatically turn it into 3D

Archipelis
Designer

simply trace a shape from a backdrop image, and see it turn into 3D

cool tool for rapid 3D model creation and prototyping from images

All you need to do at this tim is locate the first image file of the frame sequence. Click it and click Open.

You can scrub through the timeline of the Timeline editor, to see in realtime hat the effect is. Wherever the pixels in the current animation are blue, you'll see the corresponding pixels from the image sequence instead:

click image to enlarge

Just click the 'Render' button and you're done.

Here's another example of the final result: