wehub-resource-sync
47 lines
934 B
HLSL
47 lines
934 B
HLSL
#include "shared/hash-functions.hlsl"
|
|
#include "shared/point.hlsl"
|
|
#include "shared/quat-functions.hlsl"
|
|
#include "shared/color-functions.hlsl"
|
|
|
|
cbuffer Params : register(b0)
|
|
{
|
|
float Ratio;
|
|
}
|
|
|
|
cbuffer Params : register(b1)
|
|
{
|
|
int Seed;
|
|
int Repeat;
|
|
int Resolution;
|
|
}
|
|
|
|
StructuredBuffer<Point> SourcePoints : t0;
|
|
RWStructuredBuffer<Point> ResultPoints : u0;
|
|
|
|
inline int Mod(int val, int repeat)
|
|
{
|
|
int x = val % repeat;
|
|
if (x < 0)
|
|
x = repeat + x;
|
|
|
|
return x;
|
|
}
|
|
|
|
[numthreads(64,1,1)]
|
|
void main(uint3 i : SV_DispatchThreadID)
|
|
{
|
|
uint pointCount, stride;
|
|
SourcePoints.GetDimensions(pointCount, stride);
|
|
|
|
uint pointU = ((i.x - Mod(i.x, Resolution) + 1) * _PRIME0 + Seed * _PRIME1) % (Repeat == 0 ? 999999999 : Repeat);
|
|
float hash = hash11u(pointU );
|
|
|
|
Point p = SourcePoints[i.x];
|
|
if(hash <= Ratio)
|
|
{
|
|
p.Scale = NAN;
|
|
}
|
|
ResultPoints[i.x] = p;
|
|
}
|
|
|