The first channel, channel 0, has a special purpose.

第一个通道(通道0)有一个特殊目的。

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In an RGB value, any given channel can contain a value anywhere from 0 (no color) to 255 (full color).

在一个rgb值中，任何给定的通道都可以包含一个从0(无色)到255(完整颜色)的值。

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The IntegrateInt process also writes the integer 0 (which is, after all, the current value of the running total) onto channel b.

IntegrateInt进程也把整数0(是当前汇总的值)写入通道b。

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