不透明度和流量

不透明度和流量都是用来控制笔刷透明度的选项。

../../../_images/Krita_Pixel_Brush_Settings_Flow.png

它们各自与选项列表的中的“绘画模式”的其中一种互联，效果有着微妙却又是本质上的区别。下图从左到右依次展示了绘画模式为“冲刷”时，不透明度为 0.5、流量为 0.5、两者同为 0.5 时的笔画效果区别。

../../../_images/Krita_2_9_brushengine_opacity-flow_02.png

不透明度

控制一条笔画整体的透明度。

流量

The transparency of separate dabs. Finally separated from Opacity in 2.9.

../../../_images/Krita_4_2_brushengine_opacity-flow_01.svg

在 4.2 版更改: In Krita 4.1 and below, the flow and opacity when combined with brush sensors would add up to one another, being only limited by the maximum opacity. This was unexpected compared to all other painting applications, so in 4.2 this finally got corrected to the flow and opacity multiplying, resulting in much more subtle strokes. This change can be switched back in the Tools Settings, but we will be deprecating the old way in future versions.

The old behavior can be simulated in the new system by…

  1. Deactivating the sensors on opacity.

  2. Set the maximum value on flow to 0.5.

  3. Adjusting the pressure curve to be concave.

../../../_images/flow_opacity_adapt_flow_preset.gif

绘画模式

堆积

按照前面所讲的“流量”的方式处理透明度。在一条笔画内部互相重叠的笔尖印迹会加深。

冲刷

按照前面所讲的“不透明度”的方式来处理笔画的透明度。整条笔画的透明度是均匀一致的。

../../../_images/Krita_2_9_brushengine_opacity-flow_03.png

Where the other images of this page had all three strokes set to painting mode: wash, this one is set to build-up.