Laser CHOP update? whats new?

General TouchDesigner Discussion
1

curious about the new updates to the laser chop, what has been added/fixed?

3

See the release notes, it’s all in there!

4

Here’s a link to the Laser section of the release notes:

  • Laser CHOP - For this release the laser point generation process was overhauled, with improvements to blanking calculations, image sharpness/uniformity, point repeating, general stability, and taking input directly from POPs. The CHOP was developed with the help of LaserAnimation Sollinger who guided us in speccing and implementing the necessary parameters, especially in regards of the blanking timing settings.
    • The new Laser CHOP introduces the notion of Corner Points. Previously, everything could’ve been considered a “Corner Point”, but now with the use of input attributes/channels (LasCorner and lascorner), corner points can be selected. In contrast, all non-Corner Points are considered Guide Points. Corner Points are repeatable to enable sharper and more defined lines. Guide Points are never repeated and only serve to guide the laser along a desired path, while at the same time not consuming extra points from the laser device’s point buffer because they do not follow the same repeating rules as Corner Points.
    • Additionally, there are extra input attributes/channels that allow for extra per-Corner Point control on point repeating: “LasCornerHoldAdd” (SOP/POP) or “lascornerholdadd” (CHOP) and “LasCornerHoldLookupFactor” (SOP/POP) or “lascornerholdlookupfactor” (CHOP)
    • New ‘Closed Shape Overlap’ parameter which adds overlapping points at the start/end of a shape to create a more uniform shape by removing hot-spots (like those introduced by start point hold time for example) via color interpolation.
    • New ‘Interpolate Colors’ parameter enables color interpolation between points.*