public GameTexture GetWorley(List <float> positions, int width, int height)
{
CLFilter filter = _kernels["worley"];
byte[] buffer = new byte[width * height * 4];
MemoryBuffer mb = c.CreateBuffer(MemoryFlag.ReadWrite | MemoryFlag.CopyHostPointer, buffer);
MemoryBuffer points = c.CreateBuffer(MemoryFlag.ReadOnly | MemoryFlag.CopyHostPointer, positions.ToArray()); //Maybe wrong struct
filter.SetArg(0, mb);
int3 dims = new int3(width, height, 1);
filter.SetArg(1, dims);
filter.SetArg(2, 4);
filter.SetArg(3, enablechannels);
filter.SetArg(4, points);
filter.SetArg(5, positions.Count / 3);
filter.SetArg(6, 0.3f);
CommandQueue cq = CommandQueue.CreateCommandQueue(c, d);
cq.EnqueueNDRangeKernel(filter.kernel, 1, buffer.Length);
buffer = cq.EnqueueReadBuffer <byte>(mb, buffer.Length);
return(GameTexture.Load(buffer, width, height));
}
public void RunSmoothNoise(GameTexture tex, int octave)
{
CLFilter filter = _kernels["smooth"];
GL.GetTexLevelParameter(TextureTarget.Texture2D, 0, GetTextureParameter.TextureWidth, out float w);
GL.GetTexLevelParameter(TextureTarget.Texture2D, 0, GetTextureParameter.TextureHeight, out float h);
int width = (int)w;
int height = (int)h;
byte[] buffer = new byte[width * height * 4];
GL.GetTexImage(TextureTarget.Texture2D, 0, PixelFormat.Bgra, PixelType.UnsignedByte, buffer);
MemoryBuffer mb = c.CreateBuffer(MemoryFlag.ReadWrite | MemoryFlag.CopyHostPointer, buffer);
filter.SetArg(0, mb);
filter.SetArg(1, new int3(width, height, 1));
filter.SetArg(2, 4);
filter.SetArg(3, enablechannels);
int samplePeriod = 1 << octave;
filter.SetArg(4, samplePeriod);
filter.SetArg(5, 1f / samplePeriod);
CommandQueue cq = CommandQueue.CreateCommandQueue(c, d);
cq.EnqueueNDRangeKernel(filter.kernel, 1, buffer.Length);
buffer = cq.EnqueueReadBuffer <byte>(mb, buffer.Length);
GL.BindTexture(TextureTarget.Texture2D, tex.textureID);
GL.TexSubImage2D(TextureTarget.Texture2D, 0, 0, 0, (int)width, (int)height, PixelFormat.Bgra, PixelType.UnsignedByte, buffer);
}
public void RunLightKernel(GameTexture tex)
{
//MemoryBuffer buf = c.CreateFromGLTexture2D(MemoryFlag.ReadWrite | MemoryFlag.UseHostPointer, (uint)TextureTarget.Texture2D, 0, (uint)tex.textureID);
//string test = d.GetDeviceInformation<string>(DeviceInformation.Extensions);
//DevicesNativeApi.GetDeviceInformation(d, DeviceInformation.Extensions, UIntPtr.Zero, )
GL.BindTexture(TextureTarget.Texture2D, tex.textureID);
//Custom
CLFilter filter = _kernels["light"];
GL.GetTexLevelParameter(TextureTarget.Texture2D, 0, GetTextureParameter.TextureWidth, out float width);
GL.GetTexLevelParameter(TextureTarget.Texture2D, 0, GetTextureParameter.TextureHeight, out float height);
byte[] buffer = new byte[(int)(width * height * 4)];
GL.GetTexImage(TextureTarget.Texture2D, 0, PixelFormat.Bgra, PixelType.UnsignedByte, buffer);
MemoryBuffer mb = c.CreateBuffer(MemoryFlag.ReadWrite | MemoryFlag.CopyHostPointer, buffer);
filter.SetArg(0, mb);
filter.SetArg(1, new int3((int)width, (int)height, 1));
filter.SetArg(2, 4);
filter.SetArg(3, enablechannels);
CommandQueue cq = CommandQueue.CreateCommandQueue(c, d);
cq.EnqueueNDRangeKernel(filter.kernel, 1, buffer.Length);
buffer = cq.EnqueueReadBuffer <byte>(mb, buffer.Length);
GL.BindTexture(TextureTarget.Texture2D, tex.textureID);
GL.TexSubImage2D(TextureTarget.Texture2D, 0, 0, 0, (int)width, (int)height, PixelFormat.Bgra, PixelType.UnsignedByte, buffer);
}
public void RunOverlayKernel(GameTexture tex, GameTexture overlay, float weight)
{
GL.BindTexture(TextureTarget.Texture2D, tex.textureID);
GL.GetTexLevelParameter(TextureTarget.Texture2D, 0, GetTextureParameter.TextureWidth, out float width);
GL.GetTexLevelParameter(TextureTarget.Texture2D, 0, GetTextureParameter.TextureHeight, out float height);
byte[] buffer = new byte[(int)(width * height * 4)];
GL.GetTexImage(TextureTarget.Texture2D, 0, PixelFormat.Bgra, PixelType.UnsignedByte, buffer);
MemoryBuffer mb = c.CreateBuffer(MemoryFlag.CopyHostPointer, buffer);
//Custom
CLFilter filter = _kernels["overlay"];
byte[] bufferOverlay = new byte[(int)(width * height * 4)];
GL.BindTexture(TextureTarget.Texture2D, overlay.textureID);
GL.GetTexImage(TextureTarget.Texture2D, 0, PixelFormat.Bgra, PixelType.UnsignedByte, bufferOverlay);
MemoryBuffer mbOverlay = c.CreateBuffer(MemoryFlag.CopyHostPointer, bufferOverlay);
filter.SetArg(0, mb);
filter.SetArg(1, new int3((int)width, (int)height, 1));
filter.SetArg(2, 4);
filter.SetArg(3, enablechannels);
//Custom
filter.SetArg(5, mbOverlay);
filter.SetArg(6, weight);
CommandQueue cq = CommandQueue.CreateCommandQueue(c, d);
cq.EnqueueNDRangeKernel(filter.kernel, 1, buffer.Length);
buffer = cq.EnqueueReadBuffer <byte>(mb, buffer.Length);
GL.BindTexture(TextureTarget.Texture2D, tex.textureID);
GL.TexSubImage2D(TextureTarget.Texture2D, 0, 0, 0, (int)width, (int)height, PixelFormat.Bgra, PixelType.UnsignedByte, buffer);
}
public void RunCheckerBoardKernel(GameTexture tex, float length)
{
//Custom
CLFilter filter = _kernels["checkerboard"];
//Get Width & Height
GL.BindTexture(TextureTarget.Texture2D, tex.textureID);
GL.GetTexLevelParameter(TextureTarget.Texture2D, 0, GetTextureParameter.TextureWidth, out float width);
GL.GetTexLevelParameter(TextureTarget.Texture2D, 0, GetTextureParameter.TextureHeight, out float height);
//Get Image source from opengl
//Custom
byte[] buffer = new byte[(int)(width * height * 4)];
GL.GetTexImage(TextureTarget.Texture2D, 0, PixelFormat.Bgra, PixelType.UnsignedByte, buffer);
//Create buffer with image content
MemoryBuffer mb = c.CreateBuffer(MemoryFlag.ReadWrite | MemoryFlag.CopyHostPointer, buffer);
filter.SetArg(0, mb);
filter.SetArg(1, new int3((int)width, (int)height, 1));
filter.SetArg(2, 4);
filter.SetArg(3, enablechannels);
//Custom
filter.SetArg(3, length);
filter.SetArg(4, (int)width);
CommandQueue cq = CommandQueue.CreateCommandQueue(c, d);
cq.EnqueueNDRangeKernel(filter.kernel, 1, buffer.Length);
buffer = cq.EnqueueReadBuffer <byte>(mb, buffer.Length);
GL.BindTexture(TextureTarget.Texture2D, tex.textureID);
GL.TexSubImage2D(TextureTarget.Texture2D, 0, 0, 0, (int)width, (int)height, PixelFormat.Bgra, PixelType.UnsignedByte, buffer);
}
public GameTexture GetPerlin(int width, int height, int octaves, float persistence)
{
CLFilter filter = _kernels["perlin"];
byte[] buffer = new byte[width * height * 4];
Random rnd = new Random();
for (int i = 0; i < buffer.Length; i++)
{
if (i % 4 == 0)
{
byte val = (byte)rnd.Next(0, 255);
buffer[i] = buffer[i + 1] = buffer[i + 2] = val;
buffer[i + 3] = 255; // Alpha
}
}
MemoryBuffer mb = c.CreateBuffer(MemoryFlag.ReadWrite | MemoryFlag.CopyHostPointer, buffer);
filter.SetArg(0, mb);
int3 dims = new int3(width, height, 1);
filter.SetArg(1, dims);
filter.SetArg(2, 4);
filter.SetArg(3, enablechannels);
filter.SetArg(4, persistence);
filter.SetArg(5, octaves);
CommandQueue cq = CommandQueue.CreateCommandQueue(c, d);
cq.EnqueueNDRangeKernel(filter.kernel, 1, buffer.Length);
buffer = cq.EnqueueReadBuffer <byte>(mb, buffer.Length);
return(GameTexture.Load(buffer, width, height));
}