24 September 2020
If you have ever worked with OpenGL you might be familiar with
glPolygonMode. It allows you to specify
GL_FILL, where fill is typically what we use to rasterise solid triangles, using lines allows us to achieve a wireframe effect. If you have ever then switched to OpenGLES (mobile or web platforms) you may have encountered
GL_LINE being undefined and there is no way to get a wireframe fill mode.