33 lines
1.5 KiB
Markdown
33 lines
1.5 KiB
Markdown
# Day-night cycle
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```{.shebang im_out="stdout"}
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#!/usr/bin/env bash
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echo At this point I\'m only playing around, but it\'s all for that sick-ass demo, am I right? | cowsay -f cheese | sed -e "s/^/ /"
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```
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Now that all the ground-work is in place, i can start adding timestamped events to happen in the scene:
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Camera movement, change of lightning, etc. I started by adding a day-night cycle. I then expanded these timestamps to control the car headlights:
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```cpp
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struct seq_t { double t; vec3 light_c; vec3 bg_c; bool has_headlights; };
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static const vector<seq_t> sequence = {
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{ 0, vec3(0.2 , 0.2 , 0.7), vec3(0.05, 0.1 , 0.15), 1}, // night
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{ 9, vec3(0.4 , 0.4 , 0.8), vec3(0.15, 0.15, 0.35), 1}, // dusk
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{10, vec3(1.0 , 0.6 , 0.4), vec3(0.8 , 0.4 , 0.2 ), 1}, // sunrise
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{11, vec3(0.9 , 0.7 , 0.5), vec3(0.8 , 0.6 , 0.2 ), 1}, // sunrise2
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{12, vec3(0.85, 0.85, 0.9), vec3(0.3 , 0.5 , 0.8 ), 0}, // morning
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{18, vec3(1.0 , 1.0 , 1.0), vec3(0.35, 0.6 , 0.9 ), 0}, // noon
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{24, vec3(0.7 , 0.9 , 1.0), vec3(0.3 , 0.5 , 0.8 ), 0}, // evening
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{25, vec3(0.9 , 0.7 , 0.5), vec3(0.8 , 0.6 , 0.2 ), 0}, // sundown
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{26, vec3(1.0 , 0.6 , 0.4), vec3(0.8 , 0.4 , 0.2 ), 1}, // sunset
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{27, vec3(0.5 , 0.5 , 0.8), vec3(0.35, 0.15, 0.35), 1}, // dusk
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{36, vec3(0.2 , 0.2 , 0.7), vec3(0.05, 0.1 , 0.15), 1}, // night
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};
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```
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Interpolating between these points per frame made it look quite nice:
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Now where there once again shines light, we can see the post-processing effects that much better!
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