I wrote this code back in the day to draw a fake crack on a user's
phone:
static void drawCrack(GL10 gl) {
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glDisable(GL10.GL_DEPTH_TEST);
gl.glDisable(GL10.GL_CULL_FACE);
gl.glDisable(GL_LIGHTING);
gl.glEnable(GL10.GL_TEXTURE_2D);
gl.glColor4f(1, 1, 1, 1);
gl.glEnable(GL10.GL_BLEND);
gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
float[] texcoords = new float[] { 0.0f, 1.0f, 1.0f, 1.0f, 1.0f,
0.0f,
0.0f, 0.0f };
float[] vercoords = new float[] { -2, -2, 2, -2, 2, 2, -2, 2 };
FloatBuffer tfb = DirectWrap.wrap(texcoords);
FloatBuffer vfb = DirectWrap.wrap(vercoords);
gl.glBindTexture(GL10.GL_TEXTURE_2D, crackedImg);
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST);
gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, tfb);
gl.glVertexPointer(2, GL10.GL_FLOAT, 0, vfb);
gl.glPushMatrix();
gl.glScalef(1.7f, 1.7f, 1);
gl.glDrawArrays(GL10.GL_TRIANGLE_FAN, 0, 4);
gl.glPopMatrix();
gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
gl.glDisable(GL10.GL_TEXTURE_2D);
gl.glDisable(GL10.GL_BLEND);
gl.glMatrixMode(GL10.GL_TEXTURE);
gl.glLoadIdentity();
gl.glMatrixMode(GL10.GL_MODELVIEW);
}
It used to work, but for some reason, it stopped working. Any ideas
why?
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