The top right point similarly means that "pixels which are initially white (on the right) will remain white (on the top)". The bottom left point means that "pixels which are initially black (are on the left) will remain black (on the bottom)". This is why the base line of the curves is diagonal. However unlike the equalizer, the vertical component of the graph also goes from dark to light, rather than quiet to loud. In this way you can increase or decrease contrast, and control in a sense where that contrast occurs.įrom left to right, the curves graph goes from dark to bright, just as the equalizer goes from bass to treble. However, instead of making bass sounds or treble sounds relatively louder or softer, with curves you can make the dark areas or light areas darker or lighter. Curves work somewhat similarly to the equalizer on a sound system (A more accurate analogy would be to a dynamics processor).
To create a brush that uses an image/pattern as its base, draw the image you wish to use, then select it using any of the selection tools, and tap the "new brush from selection" button on the selection options view which pops up after the selection has been made.Ĭurves are a way to alter the brightness and contrast of an image (multiple layer selection not yet supported). The "+" button will add a new brush identical to your currently selected brush. Brushes can be deleted either by scrolling to the bottom of the brush settings display, and using the "delete brush" button, or by dragging the brush far off to the side when moving it. Brushes can be rearranged by tapping and holding, then dragging it to the desired location. You can edit the current brush by tapping on it again. Tapping on any of the brushes will select it. The manner in which the dodge and burn tools lighten and darken are determined by the three sliders: highlights, midtones, and temperature. The dodge tool does the same as the blend tool, but will lighten the area underneath, and the burn tool will darken. Using the blend tool with a soft, low opacity brush will let you create a smooth transition between colors. The blending tool will set the color of the brush to the average color of what is underneath it. Tapping on the blending tool icon will bring up a popover with 3 tool options: blend (water drop icon), dodge (sun icon), and burn (cloud icon). When you first open the app, each brush tool will by default select the brush immediately under its own icon, this way you can set your favorites to the first four positions so your brushes are the way you like. Likewise, when you move back to the eraser, the large brush will be selected again. If you are drawing with a small brush and move to the eraser, changing it to a large brush, your small brush will be back when you switch back to the drawing tool. Each tool will remember the last brush you had selected under that tool. All of the brushes below the top row will work with any of the brushing tools. The top row of the brushes palette shows the four main brushing tools: draw, erase, blend, and line.