public static void Initialize(Device device, int resX, int resY)
{
int numQuads = resX * resY;
int numIndices = numQuads * 6;
int numParticlesMax = 1024 * 1024; // million particles max
int numIndicesParticles = numParticlesMax * 6;
int numRandomNumbers = 1024 * 1024; // million
var indices = new DataStream(sizeof(System.Int32) * numIndices, true, true);
var indicesParticles = new DataStream(sizeof(System.Int32) * numIndicesParticles, true, true);
var randomNumbers = new DataStream(sizeof(System.Single) * numRandomNumbers, true, true);
for (int i = 0; i < numQuads; i++)
{
indices.Write(i * 4 + 0);
indices.Write(i * 4 + 1);
indices.Write(i * 4 + 2);
indices.Write(i * 4 + 1);
indices.Write(i * 4 + 3);
indices.Write(i * 4 + 2);
}
indices.Position = 0;
for (int i = 0; i < numParticlesMax; i++)
{
indicesParticles.Write(i * 4 + 0);
indicesParticles.Write(i * 4 + 1);
indicesParticles.Write(i * 4 + 2);
indicesParticles.Write(i * 4 + 1);
indicesParticles.Write(i * 4 + 3);
indicesParticles.Write(i * 4 + 2);
}
indicesParticles.Position = 0;
System.Random rand = new System.Random();
for (int i = 0; i < numRandomNumbers; i++)
{
randomNumbers.Write((float)rand.NextDouble());
}
randomNumbers.Position = 0;
// create the vertex layout and buffer
m_FullResTriangleGridIndexBuffer = new Buffer(device, indices, sizeof(System.Int32) * numIndices, ResourceUsage.Default, BindFlags.IndexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
m_ParticleHelperIndexBuffer = new Buffer(device, indicesParticles, sizeof(System.Int32) * numIndicesParticles, ResourceUsage.Default, BindFlags.IndexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
m_RandomNumbersBuffer = GPUBufferObject.CreateBuffer(device, numRandomNumbers, 4, randomNumbers, true, false);
}
public static void Initialize(Device device, int resolutionX, int resolutionY)
{
RenderTargetSet.RenderTargetDescriptor rtDesc = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm,
m_HasDepth = false,
m_Width = resolutionX,
m_Height = resolutionY,
m_NumSurfaces = 1,
};
m_DebugRenderTarget = RenderTargetManager.RequestRenderTargetFromPool(rtDesc);
m_DebugAppendBuffer = GPUBufferObject.CreateBuffer(device, 1024, 8 * sizeof(uint), null, true, true);
}