opengl es - How to set background colour on Open GL ES Android -


I am currently playing with Lesson 08

I would like To convert the background color from black to white, at the beginning of the dredfryme () I have said

gl.glClearColor (1.0f, 0.0f, 0.0f, 0.0f);

It is actually set to have a white background screen, but nothing is visible on the screen! Obviously this is a wrong way, but why, and how do I fix it ?!

Many thanks in advance.

Edit (after 5 days): Does anyone know at all? !!

The white screen is because you have set the alpha value for 0.04.

The parameter signature is: - gl.glClearColor (float red, float green, float blue, float alpha) where floats have a value between 0.0 and 1.0.

More alpha float value is more opaque screen.


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