float rand(float n){return fract(sin(n) * 43758.5453123);}
float noise(float p){
float fl = floor(p);
float fc = fract(p);
return mix(rand(fl), rand(fl + 1.0), fc);
}
John Hooks johnhooks
johnhooks
/ GLSL-Noise.md
Created
January 13, 2023 12:18
— forked from patriciogonzalezvivo/GLSL-Noise.md
GLSL Noise Algorithms
johnhooks
/ clock_and_pwm.c
Last active
June 30, 2018 14:51
Use an AVR Timer/Counter for both Fast PWM and a rudimentary clock.
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| /** | |
| * I want to use a counter/timer for PWM and as a rudimentary | |
| * millisecond clock. If I initiate the counter in Fast PWM mode, | |
| * using a clock speed of 1MHz and a prescale of 8, a millisecond will | |
| * elapse every 125 clock ticks. | |
| */ | |
| typedef uint32_t millis_t; | |
| static volatile millis_t milliseconds = 0; /* 49.71 Days of milliseconds */ |