private void UpdateWaves(GameTimer gt)
{
// Every quarter second, generate a random wave.
if ((Timer.TotalTime - _tBase) >= 0.25f)
{
_tBase += 0.25f;
int i = MathHelper.Rand(4, _waves.RowCount - 5);
int j = MathHelper.Rand(4, _waves.ColumnCount - 5);
float r = MathHelper.Randf(0.2f, 0.5f);
_waves.Disturb(i, j, r);
}
// Update the wave simulation.
_waves.Update(gt.DeltaTime);
// Update the wave vertex buffer with the new solution.
UploadBuffer <Vertex> currWavesVB = CurrFrameResource.WavesVB;
for (int i = 0; i < _waves.VertexCount; ++i)
{
var v = new Vertex
{
Pos = _waves.Position(i),
Color = Color.Blue.ToVector4()
};
currWavesVB.CopyData(i, ref v);
}
// Set the dynamic VB of the wave renderitem to the current frame VB.
_wavesRitem.Geo.VertexBufferGPU = currWavesVB.Resource;
}
private void UpdateWaves(GameTimer gt)
{
// Every quarter second, generate a random wave.
if ((Timer.TotalTime - _tBase) >= 0.25f)
{
_tBase += 0.25f;
int i = MathHelper.Rand(4, _waves.RowCount - 5);
int j = MathHelper.Rand(4, _waves.ColumnCount - 5);
float r = MathHelper.Randf(0.2f, 0.5f);
_waves.Disturb(i, j, r);
}
// Update the wave simulation.
_waves.Update(gt.DeltaTime);
// Update the wave vertex buffer with the new solution.
UploadBuffer <Vertex> currWavesVB = CurrFrameResource.WavesVB;
for (int i = 0; i < _waves.VertexCount; ++i)
{
var v = new Vertex
{
Pos = _waves.Position(i),
Normal = _waves.Normal(i),
};
// Derive tex-coords from position by
// mapping [-w/2,w/2] --> [0,1]
v.TexC = new Vector2(
0.5f + v.Pos.X / _waves.Width,
0.5f - v.Pos.Z / _waves.Depth);
currWavesVB.CopyData(i, ref v);
}
// Set the dynamic VB of the wave renderitem to the current frame VB.
_wavesRitem.Geo.VertexBufferGPU = currWavesVB.Resource;
}
