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Forum Topic - Alpha Blending w/ OpenGLES and OpenKODE: (2 Items)
   
Alpha Blending w/ OpenGLES and OpenKODE  
Hello everybody,

we have an issue using QNX 6.5's OpenKODE Driver for OpenGLES (both 1.1 and 2.0)

Our test case basically is:
- Create EGL Display and Configuration
- Create OpenKODE Context on top of it
- Paint a green Fullscreen Rectangle and a smaller, semi-translucent blue rectangle
=> The blue (getting dark cyan) rectangle also changes background transparency so you can see the layers behind that 
application

Doing the same steps with a Screen Context instead shows exactly what one would expect: A opaque dark cyan rectangle 
with green surroundings.

I've attached the test application.

Any idea?
Specific information needed?

Attachment: Text glesDrawTestWithOpenKodeLibrary 11.33 KB
Re: Alpha Blending w/ OpenGLES and OpenKODE  
Hi David,

Unfortunately, any relevant details ‎have faded from my mind. You may need to follow up with QNX Support to get the 
issue sorted.

-Joel

  Original Message
From: David Beberman
Sent: Wednesday, September 24, 2014 4:53 AM
To: cwm-graphics
Reply To: cwm-graphics@community.qnx.com
Subject: Alpha Blending w/ OpenGLES and OpenKODE


Hello everybody,

we have an issue using QNX 6.5's OpenKODE Driver for OpenGLES (both 1.1 and 2.0)

Our test case basically is:
- Create EGL Display and Configuration
- Create OpenKODE Context on top of it
- Paint a green Fullscreen Rectangle and a smaller, semi-translucent blue rectangle
=> The blue (getting dark cyan) rectangle also changes background transparency so you can see the layers behind that 
application

Doing the same steps with a Screen Context instead shows exactly what one would expect: A opaque dark cyan rectangle 
with green surroundings.

I've attached the test application.

Any idea?
Specific information needed?





_______________________________________________

CWM/OpenKODE
http://community.qnx.com/sf/go/post111864
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