Files
2026-07-13 13:13:17 +08:00

72 lines
1.6 KiB
HLSL

#include "shared/hash-functions.hlsl"
#include "shared/noise-functions.hlsl"
#include "shared/point.hlsl"
#include "shared/quat-functions.hlsl"
cbuffer Transforms : register(b0)
{
float4x4 CameraToClipSpace;
float4x4 ClipSpaceToCamera;
float4x4 WorldToCamera;
float4x4 CameraToWorld;
float4x4 WorldToClipSpace;
float4x4 ClipSpaceToWorld;
float4x4 ObjectToWorld;
float4x4 WorldToObject;
float4x4 ObjectToCamera;
float4x4 ObjectToClipSpace;
};
cbuffer Params : register(b1)
{
float3 Position;
float __padding;
float3 Size;
float UniformScale;
}
StructuredBuffer<LegacyPoint> SourcePoints : t0;
RWStructuredBuffer<LegacyPoint> ResultPoints : u0;
float4 GetBias(float4 x, float bias)
{
return x / ((1 / bias - 2) * (1 - x) + 1);
}
float4 GetSchlickBias(float4 x, float gain)
{
return x < 0.5 ? GetBias(x * 2.0, gain)/2.0
: GetBias(x * 2.0 - 1.0,1.0 - gain)/2.0 + 0.5;
}
// float3 fmod(float3 x, float3 y) {
// return (x - y * floor(x / y));
// }
[numthreads(64,1,1)]
void main(uint3 i : SV_DispatchThreadID)
{
uint numStructs, stride;
SourcePoints.GetDimensions(numStructs, stride);
if(i.x >= numStructs) {
//ResultPoints[i.x].w = 0 ;
return;
}
float3 size = Size * UniformScale;
float3 halfSize = size * 0.5f;
float3 minBounds = Position - halfSize;
float3 maxBounds = Position + halfSize;
ResultPoints[i.x] = SourcePoints[i.x];
float3 a = SourcePoints[i.x].Position;
float3 newPosition = clamp(a,minBounds,maxBounds);
ResultPoints[i.x].Position = newPosition;
}