public float snap_cam_z_hud(float eye[], float center[], float up[]) {
float lookAt[] = new float[16];
float eye2[] = new float[3];
for (int a = 0; a < 3; a++) {
eye2[a] = eye[a];
}
for (float ez = 1; ez < 100; ez += 0.05) {
float cordx = mCanvasW;
float cordy = 0;
eye2[2] = ez;
float win[] = new float[3];
GMath.lookAtf(lookAt, eye2, center, up);
if (GLU.gluProject(cordx, cordy, 0.0f, lookAt, 0, mProjectionHud, 0, mViewport, 0, win, 0)
== GL10.GL_TRUE
&& win[0] > 0
&& win[0] < mViewport[2]) {
mCameraEyeHud[0] = 0;
mCameraEyeHud[1] = 0;
mCameraEyeHud[2] = ez;
saveLookAtHud(mCameraEyeHud, mCameraLookAtHud, mUpZHud);
return ez;
}
}
return 0;
}
