public void LoadModels()
{
foreach (var f in TestFiles.GetSampleModelsPaths())
{
var root = GltfUtils.LoadModel(f);
Assert.NotNull(root);
}
}
public void TestLoadLightsModel()
{
var f = TestFiles.GetSchemaExtensionsModelsPaths()
.FirstOrDefault(item => item.EndsWith("lights.gltf"));
var model = GltfUtils.LoadModel(f);
Assert.NotNull(model);
Assert.AreEqual(3, model.LogicalPunctualLights.Count);
Assert.AreEqual(1, model.DefaultScene.VisualChildren.ElementAt(0).PunctualLight.LogicalIndex);
Assert.AreEqual(0, model.DefaultScene.VisualChildren.ElementAt(1).PunctualLight.LogicalIndex);
}
public void TestLoadUnlitModel()
{
var f = TestFiles.GetSampleModelsPaths()
.FirstOrDefault(item => item.EndsWith(@"UnlitTest\glTF-Binary\UnlitTest.glb"));
var model = GltfUtils.LoadModel(f);
Assert.NotNull(model);
Assert.IsTrue(model.LogicalMaterials[0].Unlit);
// do a model roundtrip
var modelBis = ModelRoot.ParseGLB(model.WriteGLB());
Assert.NotNull(modelBis);
Assert.IsTrue(modelBis.LogicalMaterials[0].Unlit);
}
public void TestLoadPolly()
{
TestContext.CurrentContext.AttachShowDirLink();
// load Polly model
var model = GltfUtils.LoadModel(TestFiles.GetPollyFileModelPath());
Assert.NotNull(model);
// Save as GLB, and also evaluate all triangles and save as Wavefront OBJ
model.AttachToCurrentTest("polly_out.glb");
model.AttachToCurrentTest("polly_out.obj");
// hierarchically browse some elements of the model:
var scene = model.DefaultScene;
var pollyNode = scene.FindNode("Polly_Display");
var pollyPrimitive = pollyNode.Mesh.Primitives[0];
var pollyIndices = pollyPrimitive.GetIndices();
var pollyPositions = pollyPrimitive.GetVertices("POSITION").AsVector3Array();
var pollyNormals = pollyPrimitive.GetVertices("NORMAL").AsVector3Array();
for (int i = 0; i < pollyIndices.Count; i += 3)
{
var a = (int)pollyIndices[i + 0];
var b = (int)pollyIndices[i + 1];
var c = (int)pollyIndices[i + 2];
var ap = pollyPositions[a];
var bp = pollyPositions[b];
var cp = pollyPositions[c];
var an = pollyNormals[a];
var bn = pollyNormals[b];
var cn = pollyNormals[c];
TestContext.WriteLine($"Triangle {ap} {an} {bp} {bn} {cp} {cn}");
}
}
public void TestLoadSampleModels(string section)
{
TestContext.CurrentContext.AttachShowDirLink();
TestContext.CurrentContext.AttachGltfValidatorLink();
foreach (var f in TestFiles.GetSampleModelsPaths())
{
if (!f.Contains(section))
{
continue;
}
var perf = System.Diagnostics.Stopwatch.StartNew();
var model = GltfUtils.LoadModel(f);
Assert.NotNull(model);
var perf_load = perf.ElapsedMilliseconds;
// do a model clone and compare it
_AssertAreEqual(model, model.DeepClone());
var perf_clone = perf.ElapsedMilliseconds;
// check extensions used
if (!model.ExtensionsUsed.Contains("EXT_lights_image_based"))
{
var detectedExtensions = model.RetrieveUsedExtensions().ToArray();
CollectionAssert.AreEquivalent(model.ExtensionsUsed, detectedExtensions);
}
// evaluate and save all the triangles to a Wavefront Object
model.AttachToCurrentTest(System.IO.Path.ChangeExtension(System.IO.Path.GetFileName(f), ".obj"));
var perf_wavefront = perf.ElapsedMilliseconds;
model.AttachToCurrentTest(System.IO.Path.ChangeExtension(System.IO.Path.GetFileName(f), ".glb"));
var perf_glb = perf.ElapsedMilliseconds;
TestContext.Progress.WriteLine($"processed {f.ToShortDisplayPath()} - Load:{perf_load}ms Clone:{perf_clone}ms S.obj:{perf_wavefront}ms S.glb:{perf_glb}ms");
}
}
public void TestLoadSpecialCaseModels(string filePath)
{
TestContext.CurrentContext.AttachShowDirLink();
TestContext.CurrentContext.AttachGltfValidatorLink();
var f = TestFiles.GetSampleModelsPaths()
.FirstOrDefault(item => item.EndsWith(filePath));
var model = GltfUtils.LoadModel(f);
Assert.NotNull(model);
// evaluate and save all the triangles to a Wavefront Object
model.AttachToCurrentTest(System.IO.Path.ChangeExtension(System.IO.Path.GetFileName(f), ".obj"));
model.AttachToCurrentTest(System.IO.Path.ChangeExtension(System.IO.Path.GetFileName(f), ".glb"));
model.AttachToCurrentTest(System.IO.Path.ChangeExtension(System.IO.Path.GetFileName(f), ".gltf"));
// do a model roundtrip
var bytes = model.WriteGLB();
var modelBis = ModelRoot.ParseGLB(bytes);
// clone
var cloned = model.DeepClone();
}
