31 lines
589 B
Text
31 lines
589 B
Text
|
/* Copyright (c) 2025, Sascha Willems
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: MIT
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct Particle
|
||
|
|
{
|
||
|
|
float4 pos;
|
||
|
|
float4 vel;
|
||
|
|
};
|
||
|
|
// Binding 0 : Position storage buffer
|
||
|
|
RWStructuredBuffer<Particle> particles;
|
||
|
|
|
||
|
|
struct UBO
|
||
|
|
{
|
||
|
|
float deltaT;
|
||
|
|
int particleCount;
|
||
|
|
};
|
||
|
|
ConstantBuffer<UBO> ubo;
|
||
|
|
|
||
|
|
[shader("compute")]
|
||
|
|
[numthreads(256, 1, 1)]
|
||
|
|
void computeMain(uint3 GlobalInvocationID : SV_DispatchThreadID)
|
||
|
|
{
|
||
|
|
int index = int(GlobalInvocationID.x);
|
||
|
|
float4 position = particles[index].pos;
|
||
|
|
float4 velocity = particles[index].vel;
|
||
|
|
position += ubo.deltaT * velocity;
|
||
|
|
particles[index].pos = position;
|
||
|
|
}
|