具有模糊和斜角的 GLPaint 画笔效果 [英] GLPaint Brush Effect with blur and bevel

问题描述

我正在开发一个基于 GLPaint 代码的绘图应用程序.有人知道如何获得这样的效果吗?我已经尝试为画笔的宽度和高度使用不同的值，但它仍然保持不变.

I am working on a drawing application based on GLPaint code. Do somebody know how to get an effect like this ? I have tried with different values for the width and the Height for the brush, but still it remains same .

我需要考虑 glBlendFunc() 吗?或者是否可以通过改变画笔的宽度和高度来实现.

Do i need to consider glBlendFunc() ? or Is it achievable thorough changing the width and the heigh of the brush.

提前致谢.

推荐答案

实现这种效果的最简单方法是将 alpha 从 1.0 降低到 0.7.

The easiest way to achieve that type of effect is to reducing the alpha from 1.0 to 0.7.

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