![]() ![]() To accomplish the affect you want, you need to create a 32-bit TBitmap so you have a per-pixel alpha channel, then fill in the alpha for each pixel, setting the alpha to 0 for pixels you don't want, and setting the alpha to the desired opacity for the pixels you do want. The Opacity feature of TCanvas.Draw() does not support what you are trying to do, at least not the way you are trying to use it. Just a solid white square and solid filled red circle. If I set Bmp.Transparent := True there is still a white box, but no opacity anymore. How can I render a brush with opacity as illustrated in the screenshots, but without that square around the brush circle? ![]() Which works, except that annoying square around the edge. The idea I had (based on Andreas way of creating an ellipse with opacity) was to render a typical brush on the canvas, assign it to a offscreen bitmap then redraw it onto the main bitmap with the opacity. Procedure TForm1.Image1MouseDown(Sender: TObject Button: TMouseButton ĭrawOpacityBrush(, X, Y, clRed, 50, 85) This is my code used to produce those results: procedure DrawOpacityBrush(ACanvasBitmap: TBitmap X, Y: Integer ĪColor: TColor ASize: Integer Opacity: Integer) Ī(X, Y, Bmp, Opacity) Take a look at these next two images, the first is with the transparent background and the second with a black background to show the problem more clearer:Īs you can see, around the brush (circle) is a really annoying square I cannot get rid of. I have looked at what Andreas did, and came up with my own simplified attempt but I am stuck with a problem. I found this question earlier whilst searching around: Draw opacity ellipse in Delphi 2010 - Andreas Rejbrand has provided a few examples in his answer for that question. Rather than have one flat color been drawn, setting the opacity of the brush allows different levels of color depth etc. What I would like to achieve is the ability to set the opacity of the brush, allowing further possibilities for image editing in my program. Placed inside the TImgView32 I have a regular TImage, where I will be drawing onto the canvas, something like this: The great thing about this Microsoft Paint for Mac is that it has an eerily familiar interface.From the GR32 library, I am using TImgView32 to render a grid which will be my transparent background like so: The layout of Paintbrush features a top menu as well as a floating menu with tools for drawing, coloring, and editing. The tool also lets users import images and screenshots for editing or highlighting purposes. Though the software promotes freehand art, it does come with various functions that let users draw straight lines, circles, rectangles, and more. Paintbrush mac transparent background software# You can even add texts or resize images using this app. If you’ve worked with Microsoft Paint, you will find that the Mac equivalent of Paint behaves and looks pretty much the same. The Mac version of Paint comes with tools that let users draw using different colors and paintbrushes, create art from scratch, write or doodle over images, and complete simple edits. While it isn’t as robust as Photoshop, the paint app for Mac offers users a tool that doesn’t have complicated steps or fixed guidelines to follow. Since the app offers interaction with other files, it becomes easier for users to manipulate and edit images. Users can easily replace or remove backgrounds of images. Paint equivalent for Mac also lets users customize the thickness of strokes, change text font, fill color, and resize with just a few clicks. Furthermore, Mac Paint supports and saves files in JPEG, TIFF, BMP, GIF, and PNG formats, making it easier for Paintbrush to also double as an image editor. While the app has several tools, it also has a few drawbacks. One of them is the apparent difficulty of drawing with a touchpad or mouse. The app also doesn’t manage curves very well, so when drawing, you may have to try multiple times.Īpart from the difficulty, the app doesn’t let users add or save layers. Unlike Photoshop, users don’t have much room for mistakes. With layers, users can save sections that are complete. Mac Paint, however, only functions on the undo tool. Nonetheless, if you’re looking for an easy-to-use paint tool, you can’t go wrong with Paintbrush for Mac. If you’re new to Paintbrush and wish to go ahead with Paint for Mac free download, you may want to know how to use the tool. Paintbrush mac transparent background how to# Paintbrush mac transparent background software#įor starters, the app lets you draw in freehand, so you can select a pencil or paintbrush tool from the top-menu and draw a path on the white background.Paintbrush mac transparent background how to#. ![]()
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