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rand: reorganize: phase 2

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Hungry Blue Dev 2020-06-09 18:36:07 +05:30 • committed by GitHub
parent 67fcce2d46
commit e649cf84e3
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28 changed files with 603 additions and 408 deletions
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9
examples/path_tracing.v
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@ -236,7 +236,7 @@ fn intersect(r Ray, spheres &Sphere, nspheres int) (bool, f64, int){
// some casual random function, try to avoid the 0
fn rand_f64() f64 {
x := (C.rand()+1) & 0x3FFF_FFFF
x := (rand.intn(cache_len)+1) & 0x3FFF_FFFF
return f64(x)/f64(0x3FFF_FFFF)
}
@ -318,7 +318,7 @@ fn radiance(r Ray, depthi int, scene_id int) Vec {
//r1 := f64(2.0 * math.pi) * rand_f64()
// tabbed speed-up
r1 := C.rand() & cache_mask
r1 := rand.intn(cache_len) & cache_mask
r2 := rand_f64()
r2s := math.sqrt(r2)
@ -465,9 +465,8 @@ fn main() {
height = os.args[5].int()
}
// init the rand, using the same seed allows to obtain the same result in different runs
// change the seed from 2020 for different results
rand.seed(2020)
// change the seed for a different result
rand.seed([u32(2020), 0])
t1:=time.ticks()