The Warping tab is used to align and calibrate each projector’s output so that the projected image matches the physical screen surface.
It provides manual and advanced tools for mesh warping, overlap adjustment, translation, scaling, and optional polynomial distortion correction.
Warping
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Purpose: Used to reshape the projector’s output to match curved, angled, or irregular projection surfaces.
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Interaction:
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Warp by dragging control handles directly in the preview area, or by using the UI adjustment buttons on the left.
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Controls:
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Enabled – Toggles warping on/off for the selected projector.
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Show Control Points – Displays or hides warp grid handles.
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Handle Size (Small / Medium / Large) – Adjusts the size of control handles for easier selection.
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Reset – Restores the warp grid to its original, unwarped state.
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Shortcuts:
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Ctrl + Number – Select active projector.
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Ctrl + Arrow Keys – Move to adjacent control point.
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Shift + Mouse Drag – Move all control points together.
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Overlap
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Purpose: Defines how much each projector overlaps its neighbours to create smooth, seamless edge blending.
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Controls:
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Adjust Left, Right, Top, and Bottom overlap values as percentages of the projector’s output width or height.
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These settings determine the shared blending area between adjacent projectors.
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TIP - use the overlap wizard to calculate these settings based on physical measurements Overlap Wizard
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Advanced
The Advanced tab provides finer control over warping precision, scaling, and polynomial distortion.
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Control Points – Set the number of rows and columns in the warp grid. Use Align All or Align Selected to automatically distribute points evenly.
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Translation and Scale – Adjust the overall mesh position and uniform scaling.
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Polynomial Texture Scaling – Apply polynomial correction coefficients to compensate for lens or screen curvature. Presets can be created, saved, or applied globally. See - Polynomial Wizard
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Global (All Projectors) – Set the global warp grid resolution
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Copy Warping – Copy the warp data from one projector to another to replicate alignment or save time on similar setups.