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The Colour / Alpha Panel
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This panel has the same functionalty in both 2D and 3D modes. (see object panel)
At the top of this panel are some basic Colour Channel swapping modes.
Then you have a 'Blend Mode' options. 'Normal' and 'Burn'.
Using the 'Burn' mode in conjuction with 'Dieback' can cause a 'white out' unless the channel is carefully brought into the mix.
Below this are the 'Keying' controls.
Luma keying (default mode) allows you to make the dark areas of the clip transparent (or the light areas if in 'inverse' mode). Chroma Keying allows you to set a shade of colour to be transparent. (see below for more details).
The 'Inverse Luma' toggle button switches between normal (dark-transparant) and inverse (light-transparant) keying modes.
The top slider controls the 'threshold' at which transparancy begins to be applied.
The bottom slider controls the 'Threshold at which transparancy stops being applied.
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This panel has the same functionalty in both 2D and 3D modes. (see object panel)
The controls are as described above, except that here we are showing the 'Chroma Keying' option.
The top slider controls the 'threshold' at which transparancy begins to be applied.
The bottom slider controls the 'blend', and allows you smooth the edge of the chroma keying.
The 'Pick Colour' button, when clicked, starts showing the clip in the 'Chroma Preview' panel to the right. When the clip is playing in the 'Chroma Preview' panel you can move the mouse over this area to select the required colour.
The colour you are selecting is shown in the box below the 'Pick Colour' button.
Due to the nature of trying to select a colour from a moving image, the colour selection happens only when you move the mouse. Once you are have the required colour, click with the left mouse button to 'fix it'.
The 'Colour Dialog' button allows you to select the 'chorma key colour' from a dialog box.
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