| lucidium said: useless trivia for you, in GT4 each track had several cubemaps based around the track itself that the engine would pop in and out of depending on where the car was located on the track, it was carefully timed and positioned to give minimal jump when switching maps on the back and front window but the side windows sometimes showed off the effect. https://www.youtube.com/watch?v=wW67x0Sh00M Video uploader mistakes this for realtime reflections even though it wasnt really, but it does show the jump between cube maps - in addition to these track based cube maps a secondary overlay cubemap was used to reflect track side lights, this was actually psuedo realtime using shaders, but not as accurate as actual realtime reflections, the secondary reflections were used over the entire car. |
I thought it was real time. The disappearing geometry could be due to distance pop-in, no? They rendered just very near objects - also very simplified geometry compared to the full track. Lots of cheating to do reflections and shadows on that game... Anyway that's what I thought, but cool vid from the past 
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