Projected Mapping - PRG MBOX User Manual

Projected Mapping

The first two steps are to set up the additional universe of control (via Art-Net or to sACN), and to edit the base
information in the configuration.
Step 1. Click on the Image Remapping tab, then double-click on the "0" in the Universes area - the default universe
0 - and type in a new number (this tutorial uses universe 16) that is not one of the current control universes
for the Mbox server. Press [return] to accept the change.
Step 2. Next, if there is no configuration already in the configuration list, click on the Add button at the top right of
the window and select Add Configuration from the menu. Don't change the Global Texture Position Scale
setting.
There should be one entry in the configuration list "[001] No Name {720, 480}"): this is the first configuration and has
an index of 001. Mbox Designer allows up to 255 configurations (though this tutorial will only have two), with each
having its own set of screen objects. Every configuration can be unique or can have the same screen objects but
with different image remapping positioning, image scaling, or controls. All configurations get saved into the same
MultiScreenData.plist file and a layer can use the Image Remap parameter to enable remapping for that layer and to
select a configuration by index value (between 1 and 255).
Step 3. Click on the configuration ([001]) in the list at the left of the window and notice that the window changes from
showing the Global Scale setting to showing the configuration's settings: specifically Texture Width & Height
and Display Width & Height. Edit those values to be 900 x 900 and 1920 x 1080 respectively, make sure to
press [tab] or [return] after each entry. Give the configuration a new name, "Projected Mapping", as well.
The texture width and height define the size of the content to be used with the configuration. This needs to be pre-set to
provide the correct pixel-accurate positioning relationships between the content and the remapping.
Note: Pre-setting a configuration's texture size doesn't mean that content of a different size cannot be used, however
its origin will be offset from the origin of the configuration. The layer's X and Y position parameters can be used to affect
this, but that placement may not be pixel-accurate. Therefore in some cases it may be necessary to create more than
one nearly identical configuration, with only a different texture width and/or height.
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