![]() Behind mode is definitely an important complement to alpha-preserve mode. ![]() I think that the red, green, blue categories have special treatment when erasing : specifically, darker-appearing pixels are considered as containing some black, and therefore the color is extracted - an operation very similar to GIMP's 'color to alpha' in that it must estimate how much red/green/blue there was, remove it all (setting the pixel color to black if that was the only hue present) and adjust the opacity accordingly.We can erase (mostly or completely cleanly) those red, green, blue, black categories.We can set all solid pixels to red, green, blue, or black.In my estimate, this is why TVP chose to stick to the extremely coarse 'red' 'green' 'blue', 'black' categorization in the standard RGB image representation, they are mathematically very distinct. If you experiment with the 'color to alpha' filter in GIMP, it shows the problems that can arise in this case with very similar colors or low opacity drawing. But we can't cleanly erase just any color.Of course we can set all lines to x,y or z color (whatever color we want), that's basically what alpha preservation brush mode does.it works by analyzing the proportion of R/G/B in each pixel, classifying pixels as red, green, blue, or black.I've analyzed this feature in TVP before. Tvpaint (Demo is free - windows,mac,linux).Here you can download and try applications that have this feature: So Instead of blue, the command could use the current color's RGB values and use the palette to have predefined defaults for a rough sketch color and an inking color. colorize all lines on the layer to blueīut in my suggestion I am wondering if it can be done in any color. ![]()
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