Re: Modalities of producing an electronic Art Show
Do you know how each of the red, green, and blue channels is calculated when opacity of a layer is used please?
I am wondering if it is, if opacity is expressed as a value p in the range 0.0 to 1.0, if there are n layers, as
x = p * x(i) + (1 - p) * x(i - 1)
Alas, I cannot use square brackets, as the forum software treats them as markup.
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Using Paint to look at what is the colour gives (153, 153, 204), so it looks like my guess at the formula might be correct, at least for just one semi-opaque layer upon an opaque layer.
I think your formula is indeed correct, unless we’re both missing something!
As for using square brackets, you need to ‘escape’ them by using {code} markup via the ‘angle brackets’ button on the toolbar above the message text area.
x = p * x[i] + (1 - p) * x[i - 1]
― Tennessee Williams