private void IncrementSolution(int index, float amount)
{
WaveSolution v = GetSolution(index);
v.Pos.Y += amount;
SetSolution(index, v);
}
private void SetSolution(int index, WaveSolution v)
{
OpenCurrentBuffer();
int pos = WaveSolution.Stride * index;
rippleWriteBuffer.Position = pos;
rippleWriteBuffer.Write <WaveSolution>(v);
}
private WaveSolution GetSolution(int index)
{
OpenCurrentBuffer();
int pos = WaveSolution.Stride * index;
rippleWriteBuffer.Position = pos;
WaveSolution v = rippleWriteBuffer.Read <WaveSolution>();
return(v);
}
private void FillBuffers()
{
float speed = _waveSpeed;
float dx = _wavesCB._spatialStep;
float dt = _waveTimeStep;
uint m = _wavesCB.RowCount;
uint n = _wavesCB.ColumnCount;
var d = _waveDamping * dt + 2.0f;
var e = (speed * speed) * (dt * dt) / (dx * dx);
var w2 = (n - 1) * dx * 0.5f;
var d2 = (m - 1) * dx * 0.5f;
var WaveSolutions = new WaveSolution[m * n];
for (var i = 0; i < m; i++)
{
var z = d2 - i * dx;
for (var j = 0; j < n; j++)
{
var x = -w2 + j * dx;
WaveSolutions[i * n + j] = new WaveSolution();
WaveSolutions[i * n + j].Pos = new Vector4(x, 0, z, 0);
WaveSolutions[i * n + j].Normal = new Vector4(0, 1, 0, 1);
WaveSolutions[i * n + j].Tangent = new Vector4(1.0f, 0, 0, 1);
}
}
ImmediateContext.UpdateSubresource <WaveSolution>(WaveSolutions, _inputBuf1);
WaveSolutions = new WaveSolution[m * n];
for (var i = 0; i < m; i++)
{
var z = d2 - i * dx;
for (var j = 0; j < n; j++)
{
var x = -w2 + j * dx;
WaveSolutions[i * n + j] = new WaveSolution();
WaveSolutions[i * n + j].Pos = new Vector4(x, 0, z, 0);
WaveSolutions[i * n + j].Normal = new Vector4(0, 1, 0, 1);
WaveSolutions[i * n + j].Tangent = new Vector4(1.0f, 0, 0, 1);
}
}
ImmediateContext.UpdateSubresource <WaveSolution>(WaveSolutions, _inputBuf2);
}