Richard Zink
2ad51141c6
Instead of mapping rd.x/rd.y to UV directly (which gave a flat orthographic look), compute where the ray actually intersects the ground plane and sample the satellite texture at that world (x,z) coordinate. As the camera drifts forward (uTime), the ground scrolls, giving the illusion of flight over real terrain. - tGround = -ro.y / rd.y (with rd.y < 0 guard) - gUv = (hitPoint.x, hitPoint.z) * 0.04 + 0.5 - Atmospheric perspective: ground fades toward sky with distance (fog starts at hit-distance 0, full at 30 world units) - gmask 1.0 only when tGround > 0 (camera above ground AND ray pointing down), 0 otherwise