The second map channel shows only textures of certain objects at the track, such like: flags, bridges, buildings, safety tyres at the corners, tunnels, etc... Both channels are programmed to overlay each other with a non-uniform speed according the car's location and orientation on the track. That's why your eyes see pseudo-reflections that "reflect" on the car's body with different speed which gives you the fake impression of watching real-time reflections of the 3d environment.
The first map channel is a textured tube that uses a mirrored map of the main environment (track + mountains + sky) to cheat our eyes that they see a mirrored reflection of the environment. Due to the fact that PS2's hardware can not handle a full length texture of the entire track, the tube mapping is applied as separate textures that change every few seconds while your car is moving along the track. You can easily recognize this at the replay when the textures pop-up every 20-50 meters.
The second map channel shows only textures of certain objects at the track, such like: flags, bridges, buildings, safety tyres at the corners, tunnels, etc... Both channels are programmed to overlay each other with a non-uniform speed according the car's location and orientation on the track. That's why your eyes see pseudo-reflections that "reflect" on the car's body with different speed which gives you the fake impression of watching real-time reflections of the 3d environment.
SOR4 1 year ago
The first map channel is a textured tube that uses a mirrored map of the main environment (track + mountains + sky) to cheat our eyes that they see a mirrored reflection of the environment. Due to the fact that PS2's hardware can not handle a full length texture of the entire track, the tube mapping is applied as separate textures that change every few seconds while your car is moving along the track. You can easily recognize this at the replay when the textures pop-up every 20-50 meters.
SOR4 1 year ago
The car body reflections in GT4 are NOT calculated in real-time. Instead, they use 2 texture channels of tube mapping.
SOR4 1 year ago
thats how mutch they put so mutch work on this game
boogynights 5 years ago
Nice dude!
thejink 5 years ago