Drawmodes; Using Drawmodes; Drawmodes Using Drawmodes - PRG MBOX User Manual

DRAWMODES

Using Drawmodes

Drawmodes provide three separate special functions on a layer. These functions are:
+ Automatic full ambient lighting for 3D objects on the layer, without affecting the lighting on objects on other layers.
+ Selection of modes for the "Cut and Stencil" feature.
+ Enabling the "opacity fades to black" functionality on a layer, whereby reducing the opacity parameter on the layer
dims the layer to black rather than making it transparent.
Each layer has its own drawmode parameter with the following modes:
+ 0 = Idle
+ 1 = Light
+ 2 = Cut Stencil
+ 3 = Cut Stencil plus Light
For a complete parameter map, refer to
Drawmode 1 Example:
Using Drawmode 1, Light, on a layer automatically raises the ambient lighting level to
100% for the that layer only. This control enables objects (both digital gobos and 3D
objects) and any applied texture to be seen without affecting the lighting on other layers.
To achieve the results shown in the images to the right, do the following:
Step 1. Set the Global Master intensity (and Output Master intensity if applicable) to
100%. Confirm that all lighting fixtures have an intensity value of 0 (i.e. they
are off). On Layer 1 only, with all other attributes set to default values, set
the opacity to 100%. The white square should appear (if it is not disabled)
because Folder 0, File 0 has no associated texture file.
Step 2. With Layer 1 still selected, choose object folder 000, file 001. The screen
should turn entirely black - although an object has been selected and
applied, and the white square is still active. The selected object is not visible
yet because there is no lighting.
Step 3. Set layer 1's Drawmode parameter to a value of 1, now the Mbox Designer
digital gobo is visible, colored white. Various parameters on the layer can
affect the gobo at this point. The layer's color parameters will affect the
color of the gobo, and because it is a 3D object (but with no thickness), it
has almost all the properties of a 3D object: scale, rotation, spin, and X/Y/Z
position. Most importantly, a texture (movie or still image) can be applied to
the gobo, replacing the white.
Step 4. The fourth image shows the same gobo with a texture applied. In this case,
the result looks like the result of a mask. Although the texture is applied onto
the gobo, it looks like a background layer is visible through the gobo. But
rather than using two layers, one as a background and a second as a mask,
this uses only one layer. Set the Drawmode back to 0 and test the lighting
fixtures to see how they affect the gobo.
+ 4 = Cut Stencil and Draw
+ 5 = Cut Stencil, Draw, plus Light
+ 6 = Draw Through Stencil
+ 7 = Draw Through Stencil plus Light
"Draw Modes" on page 223.
+ 8 = Draw Onto Stencil
+ 9 = Draw Onto Stencil plus Light
+ 14 = Opacity Fades to Black
MBOX® USER MANUAL
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