public MetalKitEssentialsMesh(MTKMesh mtkMesh, MDLMesh mdlMesh, IMTLDevice device)
{
mesh = mtkMesh;
submeshes = new List<MetalKitEssentialsSubmesh> ();
if ((nuint)mtkMesh.Submeshes.Length != mdlMesh.Submeshes.Count)
throw new Exception ("Number od submeshes should be equal");
for (int i = 0; i < mtkMesh.Submeshes.Length; i++) {
// Create our own app specifc submesh to hold the MetalKit submesh.
var submesh = new MetalKitEssentialsSubmesh (mtkMesh.Submeshes[i], mdlMesh.Submeshes.GetItem <MDLSubmesh>((nuint)i), device);
submeshes.Add (submesh);
}
}
public void CreateBoxWithDimensonTest()
{
Vector3 V3 = new Vector3(1, 2, 3);
Vector3i V3i = new Vector3i(4, 5, 6);
using (var obj = MDLMesh.CreateBox(V3, V3i, MDLGeometryType.Triangles, true, null)) {
Assert.IsNotNull(obj, "obj");
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(0.5f, 1, 1.5f), MinBounds = new Vector3(-0.5f, -1, -1.5f)
}, obj.BoundingBox, "BoundingBox");
Assert.AreEqual((nuint)1, obj.Submeshes.Count, "Submeshes Count");
Assert.AreEqual(1, obj.VertexBuffers.Length, "VertexBuffers Count");
Assert.AreEqual(TestRuntime.CheckXcodeVersion(7, 3) ? (nuint)214 : (nuint)24, obj.VertexCount, "VertexCount");
Assert.AreEqual((nuint)31, obj.VertexDescriptor.Attributes.Count, "VertexDescriptor Attributes Count");
Assert.AreEqual((nuint)31, obj.VertexDescriptor.Layouts.Count, "VertexDescriptor Layouts Count");
}
}
public void CreateCylindroidTest()
{
var V2 = new Vector2(1, 1);
using (var obj = MDLMesh.CreateCylindroid(1, V2, 3, 1, MDLGeometryType.Triangles, true, null)) {
Assert.IsNotNull(obj, "obj");
#if MONOMAC
if (TestRuntime.CheckSystemVersion(ApplePlatform.MacOSX, 10, 12))
{
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(0.866025448f, 0.5f, 1f), MinBounds = new Vector3(-0.866025388f, -0.5f, -0.5f)
}, obj.BoundingBox, "BoundingBox");
}
else
{
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(1f, 0.5f, 1f), MinBounds = new Vector3(-0.866025388f, -0.5f, -0.866025388f)
}, obj.BoundingBox, "BoundingBox");
}
#else
if (TestRuntime.CheckXcodeVersion(8, 2))
{
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(0.866025448f, 0.5f, 1f), MinBounds = new Vector3(-0.866025388f, -0.5f, -0.5f)
}, obj.BoundingBox, "BoundingBox");
}
else if (TestRuntime.CheckXcodeVersion(8, 0))
{
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(0.866025448f, 1.0f, 1f), MinBounds = new Vector3(-0.866025388f, -1.0f, -0.5f)
}, obj.BoundingBox, "BoundingBox");
}
else
{
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(1f, 0.5f, 1f), MinBounds = new Vector3(-0.866025388f, -0.5f, -0.866025388f)
}, obj.BoundingBox, "BoundingBox");
}
#endif
Assert.That(obj.VertexBuffers.Length, Is.GreaterThanOrEqualTo(1), "VertexBuffers Count");
Assert.AreEqual((nuint)1, obj.Submeshes.Count, "Submeshes Count");
Assert.AreEqual((nuint)18, obj.VertexCount, "VertexCount");
Assert.AreEqual((nuint)31, obj.VertexDescriptor.Attributes.Count, "VertexDescriptor Attributes Count");
Assert.AreEqual((nuint)31, obj.VertexDescriptor.Layouts.Count, "VertexDescriptor Layouts Count");
}
}
public void CreatePlaneTest()
{
var V2 = new Vector2(3, 3);
var V2i = new Vector2i(3, 3);
using (var obj = MDLMesh.CreatePlane(V2, V2i, MDLGeometryType.Triangles, null)) {
Assert.IsNotNull(obj, "obj");
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(1.5f, 0, 1.5f), MinBounds = new Vector3(-1.5f, 0, -1.5f)
}, obj.BoundingBox, "BoundingBox");
Assert.AreEqual(1, obj.Submeshes.Count, "Submeshes Count");
Assert.That(obj.VertexBuffers.Length, Is.GreaterThanOrEqualTo(1), "VertexBuffers Count");
Assert.AreEqual(16, obj.VertexCount, "VertexCount");
Assert.AreEqual(31, obj.VertexDescriptor.Attributes.Count, "VertexDescriptor Attributes Count");
Assert.AreEqual(31, obj.VertexDescriptor.Layouts.Count, "VertexDescriptor Layouts Count");
}
}
public void Setup()
{
if (!UIDevice.CurrentDevice.CheckSystemVersion(9, 0))
{
Assert.Ignore("Requires iOS9+");
}
if (Runtime.Arch == Arch.SIMULATOR && IntPtr.Size == 4)
{
// There's a bug in the i386 version of objc_msgSend where it doesn't preserve SIMD arguments
// when resizing the cache of method selectors for a type. So here we call all selectors we can
// find, so that the subsequent tests don't end up producing any cache resize (radar #21630410).
object dummy;
using (var obj = MDLMesh.CreateBox(Vector3.Zero, Vector3i.Zero, MDLGeometryType.Triangles, true, null)) {
obj.AddAttribute("foo", MDLVertexFormat.Char);
// obj.AddNormals (null, 0); // throws NSInvalidArgumentException, need to figure out valid arguments
// obj.AddTangentBasis ("foo", "bar", "zap"); // throws "Need float or half UV components Need float or half UV components"
// obj.AddTangentBasisWithNormals ("foo", "bar", "zap"); // throws "Need float or half UV components Reason: Need float or half UV components"
dummy = obj.BoundingBox;
// obj.GenerateAmbientOcclusionTexture (1, 1, new MDLObject [] { }, "name", "name");
// obj.GenerateAmbientOcclusionVertexColors (1, 1, new MDLObject[] {}, "name");
// obj.GenerateAmbientOcclusionVertexColors (1.1, 1, new MDLObject[] [] { }, "name");
// obj.GenerateLightMapTexture (Vector2i.Zero, new MDLLight[] {}, new MDLObject[] {}, "str", "str");
// obj.GenerateLightMapVertexColors (new MDLLight[] { }, new MDLObject[] { }, "v");
obj.MakeVerticesUnique();
dummy = obj.Submeshes;
dummy = obj.VertexBuffers;
dummy = obj.VertexCount;
dummy = obj.VertexDescriptor;
}
using (var obj = MDLMesh.CreateCylindroid(1, Vector2.Zero, 3, 0, MDLGeometryType.Triangles, false, null)) {
}
using (var obj = MDLMesh.CreateEllipsoid(Vector3.Zero, 3, 2, MDLGeometryType.Triangles, false, false, null)) {
}
using (var obj = MDLMesh.CreateEllipticalCone(0, Vector2.Zero, 3, 1, MDLGeometryType.Triangles, false, null)) {
}
using (var obj = MDLMesh.CreateIcosahedron(0, false, null)) {
}
using (var obj = MDLMesh.CreatePlane(new Vector2(1, 1), new Vector2i(1, 1), MDLGeometryType.Triangles, null)) {
}
// using (var obj = MDLMesh.CreateSubdividedMesh (new MDLMesh (), 0, 0)) {
// }
}
}
protected ArrayList FlattenChildren(MDLObject obj)
{
ArrayList ares = new ArrayList(0);
if (obj.type == MDLType.mdl_group)
{
MDLMesh[] childmeshes = new MDLMesh[obj.nchildren];
for (int i = 0; i < obj.nchildren; i++)
{
ares.AddRange(FlattenChildren(obj.childrens[i]));
}
}
if (obj.type == MDLType.mdl_mesh)
{
ares.Add(obj);
}
return(ares);
}
public void CreateHemisphereTest()
{
TestRuntime.AssertXcodeVersion(8, 0);
Vector3 V3 = new Vector3(1, 2, 3);
Vector2i V2i = new Vector2i(4, 5);
using (var obj = MDLMesh.CreateHemisphere(V3, V2i, MDLGeometryType.Triangles, true, true, null)) {
Assert.IsNotNull(obj, "obj");
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(0.9510565f, 2, 2.85317f), MinBounds = new Vector3(-0.9510565f, 0.6180339f, -2.85317f)
}, obj.BoundingBox, "BoundingBox");
Assert.AreEqual(1, obj.Submeshes.Count, "Submeshes Count");
Assert.AreEqual(1, obj.VertexBuffers.Length, "VertexBuffers Count");
Assert.That(obj.VertexCount, Is.GreaterThanOrEqualTo(16), "VertexCount");
Assert.AreEqual(31, obj.VertexDescriptor.Attributes.Count, "VertexDescriptor Attributes Count");
Assert.AreEqual(31, obj.VertexDescriptor.Layouts.Count, "VertexDescriptor Layouts Count");
}
}
public void CreateConeTest()
{
TestRuntime.AssertXcodeVersion(8, 0);
Vector3 V3 = new Vector3(1, 2, 3);
Vector2i V2i = new Vector2i(4, 5);
using (var obj = MDLMesh.CreateCone(V3, V2i, MDLGeometryType.Triangles, true, true, null)) {
Assert.IsNotNull(obj, "obj");
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(0.5f, -0.5f, 1.5f), MinBounds = new Vector3(-0.5f, -2.5f, -1.5f)
}, obj.BoundingBox, "BoundingBox");
Assert.AreEqual(1, obj.Submeshes.Count, "Submeshes Count");
Assert.AreEqual(3, obj.VertexBuffers.Length, "VertexBuffers Count");
Assert.AreEqual(36, obj.VertexCount, "VertexCount");
Assert.AreEqual(31, obj.VertexDescriptor.Attributes.Count, "VertexDescriptor Attributes Count");
Assert.AreEqual(31, obj.VertexDescriptor.Layouts.Count, "VertexDescriptor Layouts Count");
}
}
public void CreateBoxTest()
{
Vector3 V3 = new Vector3(1, 2, 3);
Vector3i V3i = new Vector3i(4, 5, 6);
using (var obj = MDLMesh.CreateBox(V3, V3i, MDLGeometryType.Triangles, true, null)) {
Assert.IsNotNull(obj, "obj");
Asserts.AreEqual(new MDLAxisAlignedBoundingBox {
MaxBounds = new Vector3(0.5f, 1, 1.5f), MinBounds = new Vector3(-0.5f, -1, -1.5f)
}, obj.BoundingBox, "BoundingBox");
Assert.AreEqual(1, obj.Submeshes.Count, "Submeshes Count");
Assert.AreEqual(1, obj.VertexBuffers.Length, "VertexBuffers Count");
// iOS 9.3 is the basis of tvOS 9.2 (hopefully they'll get in sync with iOS 10+)
#if __TVOS__
bool nine3 = UIDevice.CurrentDevice.CheckSystemVersion(9, 2);
#else
bool nine3 = UIDevice.CurrentDevice.CheckSystemVersion(9, 3);
#endif
Assert.AreEqual(nine3 ? 214 : 24, obj.VertexCount, "VertexCount");
Assert.AreEqual(31, obj.VertexDescriptor.Attributes.Count, "VertexDescriptor Attributes Count");
Assert.AreEqual(31, obj.VertexDescriptor.Layouts.Count, "VertexDescriptor Layouts Count");
}
}
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("mesh_vertex");
// Load the fragment program into the library
IMTLFunction fragmentProgram = defaultLibrary.CreateFunction("mesh_fragment");
// Generate meshes
MTKMeshBufferAllocator mtkBufferAllocator = new MTKMeshBufferAllocator(device);
NSUrl url = NSBundle.MainBundle.GetUrlForResource("Fighter", "obj");
MDLAsset mdlAsset = new MDLAsset(url, new MDLVertexDescriptor(), mtkBufferAllocator);
MDLObject mdlObject = mdlAsset.GetObject(0);
MDLMesh mdlMesh = mdlObject as MDLMesh;
NSError error;
objMesh = new MTKMesh(mdlMesh, device, out error);
// Create a vertex descriptor from the MTKMesh
MTLVertexDescriptor vertexDescriptor = MTLVertexDescriptor.FromModelIO(objMesh.VertexDescriptor);
vertexDescriptor.Layouts[0].StepRate = 1;
vertexDescriptor.Layouts[0].StepFunction = MTLVertexStepFunction.PerVertex;
this.clock = new System.Diagnostics.Stopwatch();
clock.Start();
this.view = CreateLookAt(new Vector3(0, 1, 2), new Vector3(0, 0, 0), Vector3.UnitY);
var aspect = (float)(View.Bounds.Size.Width / View.Bounds.Size.Height);
this.proj = Matrix4.CreatePerspectiveFieldOfView((float)Math.PI / 4, aspect, 0.1f, 100);
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
};
pipelineStateDescriptor.ColorAttachments[0].PixelFormat = mtkView.ColorPixelFormat;
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);
NSImage image = NSImage.ImageNamed("Fighter_Diffuse.jpg");
MTKTextureLoader mTKTextureLoader = new MTKTextureLoader(device);
this.texture = mTKTextureLoader.FromCGImage(image.CGImage, new MTKTextureLoaderOptions(), out error);
MTLSamplerDescriptor samplerDescriptor = new MTLSamplerDescriptor()
{
MinFilter = MTLSamplerMinMagFilter.Linear,
MagFilter = MTLSamplerMinMagFilter.Linear,
SAddressMode = MTLSamplerAddressMode.ClampToEdge,
TAddressMode = MTLSamplerAddressMode.ClampToEdge,
};
this.sampler = device.CreateSamplerState(samplerDescriptor);
}
