When you have the brush tool selected, pressing the number keys will adjust the brush opacity.
当你已经选择了画笔工具，按下数字键可以调整画笔的不透明度。
Once we get the general area of our clouds, we want to drop the brush opacity to 20% and start slowly painting away our detailed areas.
一旦我们得到了云彩的大概区域，要将画笔不透明度调为20%，然后开始慢慢地擦除区域中不需要的细节。
Select all of them, then with a 20% Opacity, soft brush, paint some highlights on them.
选择全部方块，然后使用不透明度20%的软画笔在上面涂抹一些高光。
Create a new layer, load the interface selection, and with a 20% Opacity, soft, white brush paint some highlights just as we did with the rectangles.
新建一个图层，读取界面的选区，然后使用不透明度为20%的白色软画笔，给刚才制作的界面涂抹上一些高光。
To avoid harsh edges, I chose the "Eraser Tool", selected a soft brush, and lowered the opacity of the brush just under 50%.
为了避免粗糙的边缘，我选择了“橡皮擦工具”，选择了一个柔软的刷子，并且将不透明度降低到略低于50%。
Now we take a soft brush again, with the opacity set to about 15% and start the shading.
现在我们再次采用软的笔刷，并将透明度设置到15%开始表现暗部。
Usesmaller brush to draw some lines on the lens. Change layer blend mode to Screenand reduce Opacity to 15%.
使用较小的画笔绘制镜头上的一些行。更改图层混合模式为屏幕，不透明度降低到15%。
I then select the "brush Tool", choose a white paint color, select a soft brush at the top, and lower the opacity to somewhere around 10%.
然后，我选择“笔刷”工具里的白色笔刷，在顶端选择软刷头，然后将不透明度调低到大约10%左右。
Finally click on the other dynamics option. This controls the opacity of the brush based on pressure sensitivity.
最后单击其他动态选项，它可以控制基于压感的透明度。
Change your foreground color to black, the brush hardness to 0% and the opacity to 100%.
将前景色更改为黑色，画笔硬度设为0%，不透明度为100%。
Now create a new layer, set the blending mode to Soft Light, the opacity to 50% and paint with a large Soft Brush around the edges.
现在新建一层，混合模式为柔光，不透明度50%，使用大的软笔刷沿边缘涂抹。
Select all of them, then with a 20% Opacity, soft brush , paint some highlights on them.
选择全部方块，然后使用不透明度20%的软画笔在上面涂抹一些高光。
Create a mask, and using the black brush set to a low Opacity, erase parts of the noise to make it blend in.
创建了一个遮罩，用黑色的笔刷设置为低透明度，消除零件的噪音使它融入。
For this I used a light pink, brush size of 25, and opacity of 35. Also after you do this, go ahead and smudge the pink to take the form of where the veins will go.
为此，我用了一点桃红色，笔刷大小25，不透明度35，继续并模糊桃红色的区域以形成纹理的走向。
For example, you could animate the opacity of a brush used to paint a button's background.
例如，您可以建立用来绘制按钮背景的笔刷不透明度动画。
I block out this reflection of the light box with a hard edge brush set to 100% opacity.
我用100%不透明的硬边笔刷封闭出灯箱的直接反光。
Select Soft Brush tool, set its opacity 20% and size to 30px. Paint a fade dot in the center of the cross.
选择柔角笔刷工具，不透明度为20%，大小30像素，在十字中部画一个虚幻的园点。
Get the selection of the "3d" layer and Brush once at the corner. Set the Opacity to 85%.
选择“3d”图层的边框，然后在角落刷一下，设置透明度为85%。
Get the selection of the "3d" layer and Brush once at the corner. Set the Opacity to 85%.
选择“3d”图层的边框，然后在角落刷一下，设置透明度为85%。
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