Update from 0.61 -> 0.7 causes textures display alpha pixels as black

Question

Update from 0.61 -> 0.7 causes textures display alpha pixels as black

matyasforian opened this issue 7 years ago · comments

In my project what I updated to 0.7 the transparent textures were no longer transparent, instead rendered in black (on Windows, using OpenGL.NET & OpenGL.Winforms). Did you change anything related to this?

Heres my project: https://github.com/fmotagarcia/sparrow-sharp/tree/starling_201

matyasforian · Answer 1 · Wed Nov 22 2017 20:28:39 GMT+0800 (China Standard Time)

Nvm I figured it out. I think OpenGL.NET activated the correct blend mode at startup before, now I had to do it manually.

Luca Piccioni · Answer 2 · Fri Nov 24 2017 04:09:35 GMT+0800 (China Standard Time)

I exclude that OpenGL.Net or OpenGL.Net.WinForms are modifying the initial GL state (no call to Gl.Enable of Gl.Disable). If I remember correctly, blending is disabled at GL context creation, indeed it is correct to enable it if you need it.