Android OpenGL combination of SurfaceTexture (external image) and ordinary texture

Question

I would like to mix camera preview SurfaceTexture with some overlay texture. I am using these shaders for processing:

private final String vss =          


        

Answer 1

The method on the above save lots of my time. Thank you guru:

GLES20.glUniform1i(sTextureHandle, 1);
GLES20.glActiveTexture(GLES20.GL_TEXTURE1);
GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES,
    sTextureId);

For your 2D texture:

GLES20.glUniform1i(filterTextureHandle, 0);
GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, filterTextureID);

Change the texture index is a good way to solve this.