Make Outrun playable

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druellan
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Re: Make Outrun playable

Post by druellan » Fri Dec 20, 2019 2:17 pm

Alessandro wrote:
Mon Dec 16, 2019 4:22 pm
Out Run is not "painfully slow". The only real slowdown is in the gallery level. Curious how, out of 15 tracks, there are people who only think of that one :roll: It's enough playable as it is for me, no need to hack the code etc.
Well, looking at Enduro Racer, form the same authors, that game runs at about 20fps. OutRun is more complex, because the road lanes can change between levels. At the start, a very wide road, I can see about 9fps, on the second level (desert), narrow road, no lanes, little scenery, it can peak about 13fps, so perhaps the engine can be optimized a bit. Not sure if Enduro Racer was developed before or after Out Run.
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Stefan
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Re: Make Outrun playable

Post by Stefan » Fri Dec 20, 2019 5:12 pm

druellan wrote:
Fri Dec 20, 2019 2:17 pm
Well, looking at Enduro Racer, form the same authors, that game runs at about 20fps. OutRun is more complex, because the road lanes can change between levels. At the start, a very wide road, I can see about 9fps, on the second level (desert), narrow road, no lanes, little scenery, it can peak about 13fps, so perhaps the engine can be optimized a bit. Not sure if Enduro Racer was developed before or after Out Run.
Based on magazine reviews, Outrun is about half a year newer than Enduro Racer. Having a quick look at the RZX footage, it looks like someone told the team that OR'ed 'sprites' were no longer acceptable and that they /must/ be masked.
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druellan
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Re: Make Outrun playable

Post by druellan » Fri Dec 20, 2019 6:19 pm

Stefan wrote:
Fri Dec 20, 2019 5:12 pm
druellan wrote:
Fri Dec 20, 2019 2:17 pm
Well, looking at Enduro Racer, form the same authors, that game runs at about 20fps. OutRun is more complex, because the road lanes can change between levels. At the start, a very wide road, I can see about 9fps, on the second level (desert), narrow road, no lanes, little scenery, it can peak about 13fps, so perhaps the engine can be optimized a bit. Not sure if Enduro Racer was developed before or after Out Run.
Based on magazine reviews, Outrun is about half a year newer than Enduro Racer. Having a quick look at the RZX footage, it looks like someone told the team that OR'ed 'sprites' were no longer acceptable and that they /must/ be masked.
Good catch, for sure that change might have an impact in performance, and seems that at the time Turbo Outrun was launched they manage to optimize the masked engine: 17fps with some slowdowns to 13fps on very crawled areas.
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Un buen día me puse a probar juegos de ZX Spectrum a ciegas en Youtube, terminó siendo:
📺 Retroarqueología en Youtube

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