public MetalKitEssentialsSubmesh(MTKSubmesh mtkSubmesh, MDLSubmesh mdlSubmesh, IMTLDevice device)
{
materialUniforms = device.CreateBuffer((nuint)Marshal.SizeOf <MaterialUniforms> (), MTLResourceOptions.CpuCacheModeDefault);
var uniforms = Marshal.PtrToStructure <MaterialUniforms> (materialUniforms.Contents);
submesh = mtkSubmesh;
for (nuint i = 0; i < mdlSubmesh.Material.Count; i++)
{
MDLMaterialProperty property = ObjectAtIndexedSubscript(mdlSubmesh.Material, i);
if (property == null)
{
continue;
}
if (property.Name == "baseColorMap")
{
if (property.Type != MDLMaterialPropertyType.String)
{
continue;
}
var textureURL = new NSUrl(string.Format("file://{0}", property.StringValue));
var textureLoader = new MTKTextureLoader(device);
NSError error;
diffuseTexture = textureLoader.FromUrl(textureURL, null, out error);
if (diffuseTexture == null)
{
throw new Exception(string.Format("Diffuse texture load: {0}", error.LocalizedDescription));
}
}
else if (property.Name == "BlinnSpecularColor")
{
if (property.Type == MDLMaterialPropertyType.Float4)
{
uniforms.specularColor = property.Float4Value;
}
else if (property.Type == MDLMaterialPropertyType.Float3)
{
uniforms.specularColor = new Vector4(property.Float3Value);
}
}
else if (property.Name == "emission")
{
if (property.Type == MDLMaterialPropertyType.Float4)
{
uniforms.emissiveColor = property.Float4Value;
}
else if (property.Type == MDLMaterialPropertyType.Float3)
{
uniforms.emissiveColor = new Vector4(property.Float3Value);
}
}
}
Marshal.StructureToPtr(uniforms, materialUniforms.Contents, true);
}
void LoadAssets ()
{
var textureLoader = new MTKTextureLoader (metalView.Device);
NSUrl url = NSBundle.MainBundle.GetUrlForResource ("AnimalImage", "png");
NSError error;
sourceTexture = textureLoader.FromUrl (url, null, out error);
}
void LoadAssets()
{
var textureLoader = new MTKTextureLoader(metalView.Device);
NSUrl url = NSBundle.MainBundle.GetUrlForResource("AnimalImage", "png");
NSError error;
sourceTexture = textureLoader.FromUrl(url, null, out error);
}
public MetalKitEssentialsSubmesh(MTKSubmesh mtkSubmesh, MDLSubmesh mdlSubmesh, IMTLDevice device)
{
materialUniforms = device.CreateBuffer ((nuint)Marshal.SizeOf <MaterialUniforms> (), MTLResourceOptions.CpuCacheModeDefault);
var uniforms = Marshal.PtrToStructure <MaterialUniforms> (materialUniforms.Contents);
submesh = mtkSubmesh;
for (nuint i = 0; i < mdlSubmesh.Material.Count; i++) {
MDLMaterialProperty property = ObjectAtIndexedSubscript (mdlSubmesh.Material, i);
if (property == null)
continue;
if (property.Name == "baseColorMap") {
if (property.Type != MDLMaterialPropertyType.String)
continue;
var textureURL = new NSUrl (string.Format ("file://{0}", property.StringValue));
var textureLoader = new MTKTextureLoader (device);
NSError error;
diffuseTexture = textureLoader.FromUrl (textureURL, null, out error);
if (diffuseTexture == null)
throw new Exception (string.Format ("Diffuse texture load: {0}", error.LocalizedDescription));
} else if (property.Name == "BlinnSpecularColor") {
if (property.Type == MDLMaterialPropertyType.Float4)
uniforms.specularColor = property.Float4Value;
else if (property.Type == MDLMaterialPropertyType.Float3)
uniforms.specularColor = new Vector4 (property.Float3Value);
} else if (property.Name == "emission") {
if(property.Type == MDLMaterialPropertyType.Float4)
uniforms.emissiveColor = property.Float4Value;
else if (property.Type == MDLMaterialPropertyType.Float3)
uniforms.emissiveColor = new Vector4 (property.Float3Value);
}
}
Marshal.StructureToPtr (uniforms, materialUniforms.Contents, true);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Set the view to use the default device
device = MTLDevice.SystemDefault;
if (device == null)
{
Console.WriteLine("Metal is not supported on this device");
View = new NSView(View.Frame);
}
// Create a new command queue
commandQueue = device.CreateCommandQueue();
// Load all the shader files with a metal file extension in the project
defaultLibrary = device.CreateDefaultLibrary();
// Setup view
view = (MTKView)View;
view.Delegate = this;
view.Device = device;
view.SampleCount = 1;
view.DepthStencilPixelFormat = MTLPixelFormat.Depth32Float_Stencil8;
view.ColorPixelFormat = MTLPixelFormat.BGRA8Unorm;
view.PreferredFramesPerSecond = 60;
view.ClearColor = new MTLClearColor(0.5f, 0.5f, 0.5f, 1.0f);
// Load the vertex program into the library
IMTLFunction vertexProgram = defaultLibrary.CreateFunction("quad_vertex");
// Load the fragment program into the library
IMTLFunction fragmentProgram = defaultLibrary.CreateFunction("quad_fragment");
// Create a vertex descriptor from the MTKMesh
MTLVertexDescriptor vertexDescriptor = new MTLVertexDescriptor();
vertexDescriptor.Attributes[0].Format = MTLVertexFormat.Float4;
vertexDescriptor.Attributes[0].BufferIndex = 0;
vertexDescriptor.Attributes[0].Offset = 0;
vertexDescriptor.Attributes[1].Format = MTLVertexFormat.Float2;
vertexDescriptor.Attributes[1].BufferIndex = 0;
vertexDescriptor.Attributes[1].Offset = 4 * sizeof(float);
vertexDescriptor.Layouts[0].Stride = 6 * sizeof(float);
vertexDescriptor.Layouts[0].StepRate = 1;
vertexDescriptor.Layouts[0].StepFunction = MTLVertexStepFunction.PerVertex;
this.vertexBuffer = device.CreateBuffer(vertexData, MTLResourceOptions.CpuCacheModeDefault);// (MTLResourceOptions)0);
this.mipmapping = 0;
this.constantBuffer = device.CreateBuffer(sizeof(float), MTLResourceOptions.CpuCacheModeDefault);
SetConstantBuffer(this.mipmapping, constantBuffer);
// Create a reusable pipeline state
var pipelineStateDescriptor = new MTLRenderPipelineDescriptor
{
SampleCount = view.SampleCount,
VertexFunction = vertexProgram,
FragmentFunction = fragmentProgram,
VertexDescriptor = vertexDescriptor,
DepthAttachmentPixelFormat = view.DepthStencilPixelFormat,
StencilAttachmentPixelFormat = view.DepthStencilPixelFormat
};
pipelineStateDescriptor.ColorAttachments[0].PixelFormat = view.ColorPixelFormat;
NSError error;
pipelineState = device.CreateRenderPipelineState(pipelineStateDescriptor, out error);
if (pipelineState == null)
{
Console.WriteLine("Failed to created pipeline state, error {0}", error);
}
var depthStateDesc = new MTLDepthStencilDescriptor
{
DepthCompareFunction = MTLCompareFunction.Less,
DepthWriteEnabled = true
};
depthState = device.CreateDepthStencilState(depthStateDesc);
// Texture KTX
NSUrl url = NSBundle.MainBundle.GetUrlForResource("crate", "ktx");
MTKTextureLoader mTKTextureLoader = new MTKTextureLoader(device);
this.texture = mTKTextureLoader.FromUrl(url, new MTKTextureLoaderOptions(), out error);
Console.WriteLine("Failed to created pipeline state, error {0}", error);
MTLSamplerDescriptor samplerDescriptor = new MTLSamplerDescriptor()
{
MinFilter = MTLSamplerMinMagFilter.Linear,
MagFilter = MTLSamplerMinMagFilter.Linear,
MipFilter = MTLSamplerMipFilter.Linear,
SAddressMode = MTLSamplerAddressMode.ClampToEdge,
TAddressMode = MTLSamplerAddressMode.ClampToEdge,
};
this.sampler = device.CreateSamplerState(samplerDescriptor);
this.clock = new System.Diagnostics.Stopwatch();
this.clock.Start();
this.time = 0;
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Set the view to use the default device
device = MTLDevice.SystemDefault;
if (device == null)
{
Console.WriteLine("Metal is not supported on this device");
View = new NSView(View.Frame);
}
// Create a new command queue
commandQueue = device.CreateCommandQueue();
// Load all the shader files with a metal file extension in the project
defaultLibrary = device.CreateDefaultLibrary();
// Setup view
mtkView = (MTKView)View;
mtkView.Delegate = this;
mtkView.Device = device;
mtkView.SampleCount = 1;
mtkView.DepthStencilPixelFormat = MTLPixelFormat.Depth32Float_Stencil8;
mtkView.ColorPixelFormat = MTLPixelFormat.BGRA8Unorm;
mtkView.PreferredFramesPerSecond = 60;
mtkView.ClearColor = new MTLClearColor(0.5f, 0.5f, 0.5f, 1.0f);
// Load the vertex program into the library
IMTLFunction vertexProgram = defaultLibrary.CreateFunction("cube_vertex");
// Load the fragment program into the library
IMTLFunction fragmentProgram = defaultLibrary.CreateFunction("cube_fragment");
// Create a vertex descriptor from the MTKMesh
MTLVertexDescriptor vertexDescriptor = new MTLVertexDescriptor();
vertexDescriptor.Attributes[0].Format = MTLVertexFormat.Float4;
vertexDescriptor.Attributes[0].BufferIndex = 0;
vertexDescriptor.Attributes[0].Offset = 0;
vertexDescriptor.Attributes[1].Format = MTLVertexFormat.Float3;
vertexDescriptor.Attributes[1].BufferIndex = 0;
vertexDescriptor.Attributes[1].Offset = 4 * sizeof(float);
vertexDescriptor.Attributes[2].Format = MTLVertexFormat.Float2;
vertexDescriptor.Attributes[2].BufferIndex = 0;
vertexDescriptor.Attributes[2].Offset = 7 * sizeof(float);
vertexDescriptor.Layouts[0].Stride = 9 * sizeof(float);
vertexDescriptor.Layouts[0].StepRate = 1;
vertexDescriptor.Layouts[0].StepFunction = MTLVertexStepFunction.PerVertex;
// Primitive
Torus(1.0f, 0.3f, 28, out List <PositionNormalTexture> vertexData, out List <ushort> indexData);
vertexBuffer = device.CreateBuffer(vertexData.ToArray(), MTLResourceOptions.CpuCacheModeDefault);// (MTLResourceOptions)0);
indexDataArray = indexData.ToArray();
indexBuffer = device.CreateBuffer(indexDataArray, MTLResourceOptions.CpuCacheModeDefault);
// Use clock
this.clock = new System.Diagnostics.Stopwatch();
clock.Start();
Vector3 cameraPosition = new Vector3(0, 0, 1.5f);
this.view = CreateLookAt(cameraPosition, new Vector3(0, 0, 0), Vector3.UnitY);
var aspect = (float)(View.Bounds.Size.Width / View.Bounds.Size.Height);
proj = Matrix4.CreatePerspectiveFieldOfView((float)Math.PI / 4, aspect, 0.1f, 100);
// Constant Buffer
this.param = new Parameters()
{
CameraPosition = cameraPosition,
WorldViewProjection = Matrix4.Identity,
World = Matrix4.Identity,
WorldInverseTranspose = Matrix4.Identity,
};
this.constantBuffer = device.CreateBuffer((uint)Marshal.SizeOf(this.param), MTLResourceOptions.CpuCacheModeDefault);
// Create a reusable pipeline state
var pipelineStateDescriptor = new MTLRenderPipelineDescriptor
{
SampleCount = mtkView.SampleCount,
VertexFunction = vertexProgram,
FragmentFunction = fragmentProgram,
VertexDescriptor = vertexDescriptor,
DepthAttachmentPixelFormat = mtkView.DepthStencilPixelFormat,
StencilAttachmentPixelFormat = mtkView.DepthStencilPixelFormat,
};
MTLRenderPipelineColorAttachmentDescriptor renderBufferAttachment = pipelineStateDescriptor.ColorAttachments[0];
renderBufferAttachment.PixelFormat = mtkView.ColorPixelFormat;
NSError error;
pipelineState = device.CreateRenderPipelineState(pipelineStateDescriptor, out error);
if (pipelineState == null)
{
Console.WriteLine("Failed to created pipeline state, error {0}", error);
}
var depthStateDesc = new MTLDepthStencilDescriptor
{
DepthCompareFunction = MTLCompareFunction.Less,
DepthWriteEnabled = true
};
depthState = device.CreateDepthStencilState(depthStateDesc);
MTKTextureLoader mTKTextureLoader = new MTKTextureLoader(device);
// Texture
NSUrl url = NSBundle.MainBundle.GetUrlForResource("cubemap2", "ktx");
this.texture = mTKTextureLoader.FromUrl(url, new MTKTextureLoaderOptions(), out error);
Console.WriteLine("Failed to created pipeline state, error {0}", error);
MTLSamplerDescriptor samplerDescriptor = new MTLSamplerDescriptor()
{
MinFilter = MTLSamplerMinMagFilter.Linear,
MagFilter = MTLSamplerMinMagFilter.Linear,
MipFilter = MTLSamplerMipFilter.Linear,
SAddressMode = MTLSamplerAddressMode.ClampToEdge,
TAddressMode = MTLSamplerAddressMode.ClampToEdge,
};
this.sampler = device.CreateSamplerState(samplerDescriptor);
}
