fynx
fynx

Reputation: 1

Image displayed with black background OPENGL ES Android

Hi I am playing around with OPENGL Es on ANdroid and I am trying to display an image on my app. When I display the image ( image specs is 64x64 pixels ) I get a black background on the image but when I put this code:

 public void draw(GL10 gl) {
... 
.. 
 gl.glAlphaFunc( GL10.GL_GREATER, 0 ); 

The black background disappears but I get strange colors in my image.

Does anybody have an idea on how to fix this?

Upvotes: 0

Views: 1034

Answers (1)

Michael Slade
Michael Slade

Reputation: 13877

You need to use blending. Something like this should work:

gl.glEnable(gl.GL_BLEND);
gl.glBlendFunc(gl.GL_SRC_ALPHA,gl.GL_ONE_MINE_SRC_ALPHA);

The fact that you can use glAlphaFunc and get close to your result suggests that the image itself is okay at least.

Upvotes: 1

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