Projection mapping in Lightact is done in 3 steps:
- Create objects in the Visualizer which have content mapped on them. These objects can be either video screens or UV mapped objects.
- Create virtual projectors in the Visualizer. Their position and properties (throw ratio etc.) should match their real-world positions and properties as close as possible. Virtual projectors act as a camera in the Visualizer which means the more precise you do this step, the less work you’ll have in step 3.
- Fine-tune the warping and do the soft-edge blending, color corrections and other texture processing in the Projector setup window.
We’ll go through these steps in more detail in the following chapters. We’ll use UV mapped objects as it is the more complex workflow and if you’ll know that one, you’ll be able to use video screens instead of UV mapped objects as well.