Week 7|3D Projections

This week we use 3D projection to clean the plate(remove unwanted assets).

General process

I just use the 3D tracking piece from week 4 to do the projections. And I choose to remove the toys on the ground.

3D tracking from week 4
3D Projections Cleanup

For the object between different planes, we can create patches for different part in planes separately. We just rotopaint in good frame as normal and create the projection regions, then hold the chosen frame.

In 3D projections, we need the same camera as before, but this time we call it the projector(Blue one). We need to hold the projector in the chosen frame as well.

node graph

We can build the cards directly using the modelbuilder node, position the required cards in correct region for the patch that we created. This time I just adjust the cards in 3D tracking and import them into 3D projections. Remember the cards should be renderd in texture.

node graph zoom in

Tips: We can use cornerPin nodes to deal with the sides between the planes. The second cornerPin is the same parameters as the first one, but inverted.

Settings for Cornerpin
Two cornerPins

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