protected void SetSceneConstants()
{
sceneConstants.View = Freelook.View;
sceneConstants.Projection = Matrix.PerspectiveFovLH(FieldOfView, AspectRatio, NearPlane, FarPlane);
sceneConstants.ViewInverse = Matrix.Invert(Freelook.View);
Vector3 light = new Vector3(20, 30, 10);
sceneConstants.LightPosition = new Vector4(light, 1);
Texture2DDescription depthBuffer = lightDepthTexture.Description;
Matrix lightView = Matrix.LookAtLH(light, Vector3.Zero, Freelook.Up);
Matrix lightProjection = Matrix.OrthoLH(depthBuffer.Width / 8, depthBuffer.Height / 8, NearPlane, FarPlane);
sceneConstants.LightViewProjection = lightView * lightProjection;
using (var data = sceneConstantsBuffer.Map(MapMode.WriteDiscard))
{
Marshal.StructureToPtr(sceneConstants, data.DataPointer, false);
sceneConstantsBuffer.Unmap();
}
effect2.GetVariableByName("InverseProjection").AsMatrix().SetMatrix(Matrix.Invert(sceneConstants.View * sceneConstants.Projection));
effect2.GetVariableByName("InverseView").AsMatrix().SetMatrix(sceneConstants.ViewInverse);
effect2.GetVariableByName("LightInverseViewProjection").AsMatrix().SetMatrix(Matrix.Invert(sceneConstants.LightViewProjection));
effect2.GetVariableByName("LightPosition").AsVector().Set(sceneConstants.LightPosition);
}
void setVertices(Vertex[] arr)
{
//頂点バッファの作成
var size = Marshal.SizeOf(typeof(Vertex));
if (_vertexBuffer == null || _vertexCount < arr.Length)
{
if (null != _vertexBuffer)
{
_vertexBuffer.Dispose();
}
_vertexBuffer = new Buffer(_device, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = size * arr.Length,
Usage = ResourceUsage.Dynamic
});
}
var ds = _vertexBuffer.Map(MapMode.WriteDiscard);
ds.WriteRange(arr);
_vertexBuffer.Unmap();
}
// Used with soft bodies
public void SetDynamicVertexBuffer(Device device, Vector3[] vectors)
{
if (VertexBuffer != null && VertexCount * 2 == vectors.Length)
{
// Update existing buffer
using (var data = VertexBuffer.Map(MapMode.WriteDiscard))
{
data.WriteRange(vectors, 0, vectors.Length);
VertexBuffer.Unmap();
}
}
else
{
// Create new buffer
if (VertexBuffer != null)
VertexBuffer.Dispose();
BufferDescription vertexBufferDesc = new BufferDescription()
{
SizeInBytes = Marshal.SizeOf(typeof(Vector3)) * vectors.Length,
Usage = ResourceUsage.Dynamic,
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write
};
using (var data = new DataStream(vertexBufferDesc.SizeInBytes, false, true))
{
data.WriteRange(vectors);
data.Position = 0;
VertexBuffer = new Buffer(device, data, vertexBufferDesc);
}
BufferBindings[0] = new VertexBufferBinding(VertexBuffer, 24, 0);
}
}
void SetSceneConstants()
{
FreeLook freelook = Demo.Freelook;
Vector3 up = MathHelper.Convert(freelook.Up);
sceneConstants.View = Matrix.LookAtLH(MathHelper.Convert(freelook.Eye), MathHelper.Convert(freelook.Target), up);
sceneConstants.Projection = Matrix.PerspectiveFovLH(FieldOfView, AspectRatio, _nearPlane, FarPlane);
sceneConstants.ViewInverse = Matrix.Invert(sceneConstants.View);
Vector3 light = new Vector3(20, 30, 10);
Texture2DDescription depthBuffer = lightDepthTexture.Description;
Matrix lightView = Matrix.LookAtLH(light, Vector3.Zero, up);
Matrix lightProjection = Matrix.OrthoLH(depthBuffer.Width / 8.0f, depthBuffer.Height / 8.0f, _nearPlane, FarPlane);
sceneConstants.LightViewProjection = lightView * lightProjection;
using (var data = sceneConstantsBuffer.Map(MapMode.WriteDiscard))
{
Marshal.StructureToPtr(sceneConstants, data.DataPointer, false);
sceneConstantsBuffer.Unmap();
}
effect2.GetVariableByName("InverseProjection").AsMatrix().SetMatrix(Matrix.Invert(sceneConstants.Projection));
effect2.GetVariableByName("InverseView").AsMatrix().SetMatrix(sceneConstants.ViewInverse);
effect2.GetVariableByName("LightInverseViewProjection").AsMatrix().SetMatrix(Matrix.Invert(sceneConstants.LightViewProjection));
effect2.GetVariableByName("LightPosition").AsVector().Set(new Vector4(light, 1));
effect2.GetVariableByName("EyePosition").AsVector().Set(new Vector4(MathHelper.Convert(freelook.Eye), 1));
effect2.GetVariableByName("EyeZAxis").AsVector().Set(new Vector4(Vector3.Normalize(MathHelper.Convert(freelook.Target - freelook.Eye)), 1));
float tanHalfFOVY = (float)Math.Tan(FieldOfView * 0.5f);
effect2.GetVariableByName("TanHalfFOVX").AsScalar().Set(tanHalfFOVY * AspectRatio);
effect2.GetVariableByName("TanHalfFOVY").AsScalar().Set(tanHalfFOVY);
float projectionA = FarPlane / (FarPlane - _nearPlane);
float projectionB = -projectionA * _nearPlane;
effect2.GetVariableByName("ProjectionA").AsScalar().Set(projectionA);
effect2.GetVariableByName("ProjectionB").AsScalar().Set(projectionB);
Matrix overlayMatrix = Matrix.Scaling(2 * info.Width / _width, 2 * info.Height / _height, 1.0f);
overlayMatrix *= Matrix.Translation(-(_width - info.Width) / _width, (_height - info.Height) / _height, 0.0f);
effect2.GetVariableByName("OverlayViewProjection").AsMatrix().SetMatrix(overlayMatrix);
}
void makeSurface(int width, int height)
{
var vertices = new List <Vertex>();
for (int y = 0; y <= height; ++y)
{
for (int x = 0; x <= width; ++x)
{
vertices.Add(new Vertex(2 * (x - width / 2.0f) / width,
2 * (y - height / 2.0f) / height,
0,
(float)x / width,
(float)y / height));
}
}
var indices = new List <int>();
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
indices.Add(y * (width + 1) + x);
indices.Add((y + 1) * (width + 1) + x + 1);
indices.Add(y * (width + 1) + x + 1);
indices.Add(y * (width + 1) + x);
indices.Add((y + 1) * (width + 1) + x);
indices.Add((y + 1) * (width + 1) + x + 1);
}
}
//[TODO]なぜかBuffer作成時にDataStreamを指定するとメモリアクセス違反？
//現状DynamicなBufferしか作れないのを何とかする
//頂点バッファを作成して書き込み
_surfaceVertexBuffer = new Buffer(_device, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = vertices.Count * Marshal.SizeOf(typeof(Vertex)),
Usage = ResourceUsage.Dynamic
});
var vertexStream = _surfaceVertexBuffer.Map(MapMode.WriteDiscard);
vertexStream.WriteRange(vertices.ToArray());
_surfaceVertexBuffer.Unmap();
//インデックスバッファを作成して書き込み
_surfaceIndexBuffer = new Buffer(_device, new BufferDescription()
{
BindFlags = BindFlags.IndexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = indices.Count * Marshal.SizeOf(typeof(int)),
Usage = ResourceUsage.Dynamic
});
var indexStream = _surfaceIndexBuffer.Map(MapMode.WriteDiscard);
indexStream.WriteRange(indices.ToArray());
_surfaceIndexBuffer.Unmap();
_surfaceVertexCount = vertices.Count;
_surfaceIndexCount = indices.Count;
}
public void Update(float deltaTime)
{
if (_particleSystem == null)
{
return;
}
if (_playing == false)
{
return;
}
if (_paused)
{
return;
}
_timer += deltaTime;
if (_timer >= _particleSystem.Duration && _particleSystem.Loop)
{
_timer = 0;
ResetBurstEnumerator();
}
float emissionTime = 1.0f / _particleSystem.Emission;
_particleSpawnTimer += deltaTime;
SortParticles();
if (_particleSystem.MaxParticles > _particles.Count)
{
int amount = _particleSystem.MaxParticles - _particles.Count;
for (int i = 0; i < amount; i++)
{
_particles.Add(new Particle());
}
}
else if (_particles.Count > _particleSystem.MaxParticles)
{
_particles.RemoveRange(_particleSystem.MaxParticles, _particles.Count - _particleSystem.MaxParticles);
}
_particleCount = 0;
DataStream vertexBufferStream = _vertexBuffer.Map(MapMode.WriteDiscard, SharpDX.Direct3D10.MapFlags.None);
int burstParticles = 0;
for (int i = 0; i < _particleSystem.MaxParticles; i++)
{
Particle p = _particles[i];
if (p.Active)
{
p.Update(deltaTime);
vertexBufferStream.Write(p.VertexInfo);
++_particleCount;
}
else if (_hasNext && _timer > _burstEnumerator.Current.Key && burstParticles < _burstEnumerator.Current.Value)
{
p.Initialize();
vertexBufferStream.Write(p.VertexInfo);
++_particleCount;
++burstParticles;
}
else if (_particleSpawnTimer >= emissionTime && _timer < _particleSystem.Duration)
{
p.Initialize();
vertexBufferStream.Write(p.VertexInfo);
++_particleCount;
_particleSpawnTimer -= emissionTime;
}
}
if (_hasNext && _timer > _burstEnumerator.Current.Key)
{
_hasNext = _burstEnumerator.MoveNext();
}
_vertexBuffer.Unmap();
vertexBufferStream.Dispose();
}