public void CreateAnimatedCubeScene()
{
TestContext.CurrentContext.AttachGltfValidatorLinks();
var material = MaterialBuilder.CreateDefault();
var mesh = new Cube <MaterialBuilder>(material)
.ToMesh(Matrix4x4.Identity);
var pivot = new NodeBuilder();
pivot.UseTranslation("track1")
.WithPoint(0, Vector3.Zero)
.WithPoint(1, Vector3.One);
pivot.UseRotation("track1")
.WithPoint(0, Quaternion.Identity)
.WithPoint(1, Quaternion.CreateFromAxisAngle(Vector3.UnitY, 1.5f));
pivot.UseScale("track1")
.WithPoint(0, Vector3.One)
.WithPoint(1, new Vector3(0.5f));
var scene = new SceneBuilder();
scene.AddRigidMesh(mesh, pivot);
scene.AttachToCurrentTest("animated.glb");
scene.AttachToCurrentTest("animated.gltf");
}
public void CreateSharedNodeInstanceScene()
{
// SceneBuilder API supports reusing a NodeBuilder in multiple instances with different content.
// but glTF nodes can only hold one mesh per node, so if we find this case we need to internally
// add an additional child node to give room to the the extra mesh.
TestContext.CurrentContext.AttachGltfValidatorLinks();
var m = MaterialBuilder.CreateDefault();
var cube = new Cube <MaterialBuilder>(m, 1.7f, 1.7f, 1.7f).ToMesh(Matrix4x4.Identity);
var sphere = new IcoSphere <MaterialBuilder>(m).ToMesh(Matrix4x4.Identity);
var armature1 = new NodeBuilder("Skeleton1");
var joint0 = armature1
.CreateNode("Joint 0")
.WithLocalTranslation(new Vector3(0, 1, 0));
var scene = new SceneBuilder();
scene.AddRigidMesh(cube, joint0);
scene.AddRigidMesh(sphere, joint0);
scene.AttachToCurrentTest("instanced.glb");
scene.AttachToCurrentTest("instanced.gltf");
}
public void CreateCubeSceneWithExtras()
{
TestContext.CurrentContext.AttachShowDirLink();
TestContext.CurrentContext.AttachGltfValidatorLinks();
var material = MaterialBuilder.CreateDefault();
material.Name = "hello name";
material.Extras = IO.JsonContent.Serialize(new KeyValuePair <string, int>("hello", 16));
var mesh = new Cube <MaterialBuilder>(material).ToMesh(Matrix4x4.Identity);
mesh.Name = "world name";
mesh.Extras = "world extras";
var scene = new SceneBuilder();
scene.AddRigidMesh(mesh, Matrix4x4.Identity)
.WithName("Cube")
.WithExtras(17);
scene.AttachToCurrentTest("cube.glb");
scene.AttachToCurrentTest("cube.gltf");
scene.AttachToCurrentTest("cube.plotly");
}
public void CreateSceneWithRandomShapes()
{
TestContext.CurrentContext.AttachShowDirLink();
TestContext.CurrentContext.AttachGltfValidatorLinks();
var rnd = new Random(177);
// create materials
var materials = Enumerable
.Range(0, 10)
.Select(idx => new Materials.MaterialBuilder()
.WithChannelParam("BaseColor", new Vector4(rnd.NextVector3(), 1)))
.ToList();
// create scene
var scene = new SceneBuilder();
for (int i = 0; i < 100; ++i)
{
// create mesh
var mat = materials[rnd.Next(0, 10)];
var mesh = VPOSNRM.CreateCompatibleMesh("shape");
#if DEBUG
mesh.VertexPreprocessor.SetValidationPreprocessors();
#else
mesh.VertexPreprocessor.SetSanitizerPreprocessors();
#endif
if ((i & 1) == 0)
{
mesh.AddCube(mat, Matrix4x4.Identity);
}
else
{
mesh.AddSphere(mat, 0.5f, Matrix4x4.Identity);
}
mesh.Validate();
// create random transform
var r = rnd.NextVector3() * 5;
var xform = Matrix4x4.CreateFromYawPitchRoll(r.X, r.Y, r.Z) * Matrix4x4.CreateTranslation(rnd.NextVector3() * 25);
scene.AddRigidMesh(mesh, xform);
}
// save the model as GLB
scene.AttachToCurrentTest("shapes.glb");
scene.AttachToCurrentTest("shapes.plotly");
}
public void CreateAllAnimationTypesScene()
{
// 3D View 7.1908.9012.0 has an issue displaying off-center meshes with animated morph targets.
TestContext.CurrentContext.AttachShowDirLink();
TestContext.CurrentContext.AttachGltfValidatorLinks();
// create two materials
var pink = new MaterialBuilder("material1")
.WithChannelParam(KnownChannel.BaseColor, new Vector4(1, 0, 1, 1));
var yellow = new MaterialBuilder("material2")
.WithChannelParam(KnownChannel.BaseColor, new Vector4(1, 1, 0, 1));
var scene = new SceneBuilder();
var mesh1 = VPOSNRM.CreateCompatibleMesh("shape1");
mesh1.AddCube(MaterialBuilder.CreateDefault(), Matrix4x4.Identity);
var inst1 = scene.AddRigidMesh(mesh1, Matrix4x4.Identity);
var mesh2 = VPOSNRM.CreateCompatibleMesh("shape2");
mesh2.AddCube(pink, Matrix4x4.Identity);
var inst2 = scene.AddRigidMesh(mesh2, Matrix4x4.CreateTranslation(2, 0, 0));
scene.AttachToCurrentTest("static.glb");
scene.AttachToCurrentTest("static.gltf");
var morphBuilder = mesh2.UseMorphTarget(0);
morphBuilder.SetVertexDelta(morphBuilder.Positions.ElementAt(0), (Vector3.UnitY, Vector3.Zero));
morphBuilder.SetVertexDelta(morphBuilder.Positions.ElementAt(1), (Vector3.UnitY, Vector3.Zero));
morphBuilder.SetVertexDelta(morphBuilder.Positions.ElementAt(2), (Vector3.UnitY, Vector3.Zero));
morphBuilder.SetVertexDelta(morphBuilder.Positions.ElementAt(3), (Vector3.UnitY, Vector3.Zero));
inst2.Content.UseMorphing().Value = Transforms.SparseWeight8.Create(1);
var curve = inst2.Content.UseMorphing().UseTrackBuilder("Default");
curve.SetPoint(0, Transforms.SparseWeight8.Create(0));
curve.SetPoint(1, Transforms.SparseWeight8.Create(1));
curve.SetPoint(2, Transforms.SparseWeight8.Create(0));
var gltf = scene.ToGltf2();
// Assert.AreEqual(1, gltf.LogicalMeshes[1].MorphWeights[0]);
scene.AttachToCurrentTest("mopth.glb");
scene.AttachToCurrentTest("mopth.gltf");
}
public void ExportMeshes(string path)
{
TestContext.CurrentContext.AttachGltfValidatorLinks();
path = TestFiles
.GetSampleModelsPaths()
.FirstOrDefault(item => item.Contains(path));
// load the glTF model
var srcModel = ModelRoot.Load(path, Validation.ValidationMode.TryFix);
Assert.NotNull(srcModel);
srcModel.AttachToCurrentTest("GearBoxAssy.plotly");
// convert it to a SceneBuilder so we can manipulate it:
var srcScene = srcModel.DefaultScene.ToSceneBuilder();
// export all the individual meshes to OBJ:
for (int i = 0; i < srcScene.Instances.Count; ++i)
{
var inst = srcScene.Instances[i].Content;
// scan for meshes:
if (inst.Content is MeshContent mesh)
{
var newScene = new SceneBuilder();
newScene.AddRigidMesh(mesh.Mesh, inst.GetPoseWorldMatrix());
newScene.AttachToCurrentTest($"result_{i}.obj");
}
}
}
public void CreateCubeScene()
{
TestContext.CurrentContext.AttachGltfValidatorLinks();
var material = MaterialBuilder.CreateDefault();
var mesh = new Cube <MaterialBuilder>(material).ToMesh(Matrix4x4.Identity);
var scene = new SceneBuilder();
scene.AddRigidMesh(mesh, Matrix4x4.Identity);
scene.AttachToCurrentTest("cube.glb");
scene.AttachToCurrentTest("cube.gltf");
scene.AttachToCurrentTest("cube.plotly");
}
public void CreateNonConvexQuadsScene()
{
TestContext.CurrentContext.AttachShowDirLink();
TestContext.CurrentContext.AttachGltfValidatorLinks();
var mesh = new MeshBuilder <VertexPosition>();
var prim = mesh.UsePrimitive(MaterialBuilder.CreateDefault());
var idx = prim.AddQuadrangle(new VertexPosition(0, -1, 0), new VertexPosition(1, 0, 0), new VertexPosition(0, 1, 0), new VertexPosition(-1, 0, 0));
Assert.AreEqual((0, 1, 2, 3), idx);
idx = prim.AddQuadrangle(new VertexPosition(0, -1, 1), new VertexPosition(1, 0, 1), new VertexPosition(0, 1, 1), new VertexPosition(0.5f, 0, 1));
Assert.AreEqual((4, 5, 6, 7), idx);
idx = prim.AddQuadrangle(new VertexPosition(0, 0.5f, 2), new VertexPosition(1, 0, 2), new VertexPosition(0, 1, 2), new VertexPosition(-1, 0, 2));
Assert.AreEqual((8, 9, 10, 11), idx);
idx = prim.AddQuadrangle(new VertexPosition(1, 0, 3), new VertexPosition(0, 1, 3), new VertexPosition(0.5f, 0, 3), new VertexPosition(0, -1, 3));
Assert.AreEqual((12, 13, 14, 15), idx);
idx = prim.AddQuadrangle(new VertexPosition(1, 0, 4), new VertexPosition(1, 0, 4), new VertexPosition(0, 1, 4), new VertexPosition(-1, 0, 4));
Assert.AreEqual((-1, 16, 17, 18), idx);
idx = prim.AddQuadrangle(new VertexPosition(1, 0, 4), new VertexPosition(1, 0, 4), new VertexPosition(0, 1, 4), new VertexPosition(0, 1, 4));
Assert.AreEqual((-1, -1, -1, -1), idx);
idx = prim.AddQuadrangle(new VertexPosition(0, 0, 5), new VertexPosition(10, -1, 5), new VertexPosition(9, 0, 5), new VertexPosition(10, 1, 5));
Assert.AreEqual((19, 20, 21, 22), idx);
idx = prim.AddQuadrangle(new VertexPosition(10, -1, 6), new VertexPosition(9, 0, 6), new VertexPosition(10, 1, 6), new VertexPosition(0, 0, 6));
Assert.AreEqual((23, 24, 25, 26), idx);
var scene = new SceneBuilder();
scene.AddRigidMesh(mesh, Matrix4x4.Identity);
scene.AttachToCurrentTest("NonConvexQuads.glb");
scene.AttachToCurrentTest("NonConvexQuads.gltf");
}
public void CreateSceneWithMixedVertexFormats()
{
TestContext.CurrentContext.AttachGltfValidatorLinks();
var scene = new SceneBuilder();
var mesh1 = new MeshBuilder <VertexPosition, VertexEmpty, VertexEmpty>();
var mesh2 = new MeshBuilder <VertexPositionNormal, VertexEmpty, VertexEmpty>();
mesh1.AddCube(MaterialBuilder.CreateDefault(), Matrix4x4.Identity);
mesh2.AddCube(MaterialBuilder.CreateDefault(), Matrix4x4.Identity);
scene.AddRigidMesh(mesh1, Matrix4x4.CreateTranslation(-2, 0, 0));
scene.AddRigidMesh(mesh2, Matrix4x4.CreateTranslation(2, 0, 0));
scene.AttachToCurrentTest("scene.glb");
}
public void CreateAllAnimationTypesScene()
{
// 3D View 7.1908.9012.0 has an issue displaying off-center meshes with animated morph targets.
TestContext.CurrentContext.AttachGltfValidatorLinks();
// create two materials
var pink = new MaterialBuilder("material1")
.WithChannelParam(KnownChannel.BaseColor, KnownProperty.RGBA, new Vector4(1, 0, 1, 1));
var yellow = new MaterialBuilder("material2")
.WithChannelParam(KnownChannel.BaseColor, KnownProperty.RGBA, new Vector4(1, 1, 0, 1));
var mesh1 = VPOSNRM.CreateCompatibleMesh("shape1");
mesh1.AddCube(pink, Matrix4x4.Identity);
var mesh2 = VPOSNRM.CreateCompatibleMesh("shape2");
mesh2.AddCube(yellow, Matrix4x4.Identity);
var scene = new SceneBuilder();
var inst1 = scene.AddRigidMesh(mesh1, Matrix4x4.Identity);
// meshes intended to support animation must be created using an armature
var armature = new NodeBuilder();
armature.LocalTransform = Matrix4x4.CreateTranslation(2, 0, 0);
var inst2 = scene.AddRigidMesh(mesh2, armature);
scene.AttachToCurrentTest("static.glb");
scene.AttachToCurrentTest("static.gltf");
// up to this point, the scene has two plain unanimated cubes.
var morphBuilder = mesh2.UseMorphTarget(0);
morphBuilder.SetVertexDelta(morphBuilder.Positions.ElementAt(0), (Vector3.UnitY, Vector3.Zero));
morphBuilder.SetVertexDelta(morphBuilder.Positions.ElementAt(1), (Vector3.UnitY, Vector3.Zero));
morphBuilder.SetVertexDelta(morphBuilder.Positions.ElementAt(2), (Vector3.UnitY, Vector3.Zero));
morphBuilder.SetVertexDelta(morphBuilder.Positions.ElementAt(3), (Vector3.UnitY, Vector3.Zero));
// set default value.
inst2.Content.UseMorphing().SetValue(1);
// ser animation curve.
var curve = inst2.Content.UseMorphing().UseTrackBuilder("Default");
curve.SetPoint(0, true, 0);
curve.SetPoint(1, true, 1);
curve.SetPoint(2, true, 0);
var gltf = scene.ToGltf2();
TestContext.WriteLine(gltf.GetJsonPreview());
var meshIdx = 1;
Assert.AreEqual(1, gltf.LogicalMeshes[meshIdx].Primitives[0].MorphTargetsCount);
Assert.AreEqual(1, gltf.LogicalMeshes[meshIdx].MorphWeights[0]);
Assert.AreEqual(1, gltf.LogicalAnimations.Count);
scene.AttachToCurrentTest("mopth.glb");
scene.AttachToCurrentTest("mopth.gltf");
}
public void CreateDoubleSkinnedScene()
{
TestContext.CurrentContext.AttachGltfValidatorLinks();
// create two materials
var pink = new MaterialBuilder("material1")
.WithChannelParam(KnownChannel.BaseColor, KnownProperty.RGBA, new Vector4(1, 0, 1, 1))
.WithDoubleSide(true);
var yellow = new MaterialBuilder("material2")
.WithChannelParam(KnownChannel.BaseColor, KnownProperty.RGBA, new Vector4(1, 1, 0, 1))
.WithDoubleSide(true);
// create the mesh
const int jointIdx0 = 0; // index of joint node 0
const int jointIdx1 = 1; // index of joint node 1
const int jointIdx2 = 2; // index of joint node 2
var v1 = new SKINNEDVERTEX4(new Vector3(-10, 0, +10), (jointIdx0, 1));
var v2 = new SKINNEDVERTEX4(new Vector3(+10, 0, +10), (jointIdx0, 1));
var v3 = new SKINNEDVERTEX4(new Vector3(+10, 0, -10), (jointIdx0, 1));
var v4 = new SKINNEDVERTEX4(new Vector3(-10, 0, -10), (jointIdx0, 1));
var v5 = new SKINNEDVERTEX4(new Vector3(-10, 40, +10), (jointIdx0, 0.5f), (jointIdx1, 0.5f));
var v6 = new SKINNEDVERTEX4(new Vector3(+10, 40, +10), (jointIdx0, 0.5f), (jointIdx1, 0.5f));
var v7 = new SKINNEDVERTEX4(new Vector3(+10, 40, -10), (jointIdx0, 0.5f), (jointIdx1, 0.5f));
var v8 = new SKINNEDVERTEX4(new Vector3(-10, 40, -10), (jointIdx0, 0.5f), (jointIdx1, 0.5f));
var v9 = new SKINNEDVERTEX4(new Vector3(-5, 80, +5), (jointIdx2, 1));
var v10 = new SKINNEDVERTEX4(new Vector3(+5, 80, +5), (jointIdx2, 1));
var v11 = new SKINNEDVERTEX4(new Vector3(+5, 80, -5), (jointIdx2, 1));
var v12 = new SKINNEDVERTEX4(new Vector3(-5, 80, -5), (jointIdx2, 1));
var mesh = SKINNEDVERTEX4.CreateCompatibleMesh("mesh1");
#if DEBUG
mesh.VertexPreprocessor.SetValidationPreprocessors();
#else
mesh.VertexPreprocessor.SetSanitizerPreprocessors();
#endif
mesh.UsePrimitive(pink).AddQuadrangle(v1, v2, v6, v5);
mesh.UsePrimitive(pink).AddQuadrangle(v2, v3, v7, v6);
mesh.UsePrimitive(pink).AddQuadrangle(v3, v4, v8, v7);
mesh.UsePrimitive(pink).AddQuadrangle(v4, v1, v5, v8);
mesh.UsePrimitive(yellow).AddQuadrangle(v5, v6, v10, v9);
mesh.UsePrimitive(yellow).AddQuadrangle(v6, v7, v11, v10);
mesh.UsePrimitive(yellow).AddQuadrangle(v7, v8, v12, v11);
mesh.UsePrimitive(yellow).AddQuadrangle(v8, v5, v9, v12);
mesh.Validate();
// create the skeleton armature 1 for the skinned mesh.
var armature1 = new NodeBuilder("Skeleton1");
var joint0 = armature1.CreateNode("Joint 0").WithLocalTranslation(new Vector3(0, 0, 0)); // jointIdx0
var joint1 = joint0.CreateNode("Joint 1").WithLocalTranslation(new Vector3(0, 40, 0)); // jointIdx1
var joint2 = joint1.CreateNode("Joint 2").WithLocalTranslation(new Vector3(0, 40, 0)); // jointIdx2
joint1.UseRotation("Base Track")
.WithPoint(1, Quaternion.Identity)
.WithPoint(2, Quaternion.CreateFromYawPitchRoll(0, 1, 0))
.WithPoint(3, Quaternion.CreateFromYawPitchRoll(0, 0, 1))
.WithPoint(4, Quaternion.Identity);
// create the skeleton armature 2 for the skinned mesh.
var armature2 = new NodeBuilder("Skeleton2").WithLocalTranslation(new Vector3(100, 0, 0));
var joint3 = armature2.CreateNode("Joint 3").WithLocalTranslation(new Vector3(0, 0, 0)); // jointIdx0
var joint4 = joint3.CreateNode("Joint 4").WithLocalTranslation(new Vector3(0, 40, 0)); // jointIdx1
var joint5 = joint4.CreateNode("Joint 5").WithLocalTranslation(new Vector3(0, 40, 0)); // jointIdx2
joint4.UseRotation("Base Track")
.WithPoint(1, Quaternion.Identity)
.WithPoint(2, Quaternion.CreateFromYawPitchRoll(0, 1, 0))
.WithPoint(3, Quaternion.CreateFromYawPitchRoll(0, 0, 1))
.WithPoint(4, Quaternion.Identity);
// create scene
var scene = new SceneBuilder();
scene.AddSkinnedMesh
(
mesh,
armature1.WorldMatrix,
joint0, // joint used for skinning joint index 0
joint1, // joint used for skinning joint index 1
joint2 // joint used for skinning joint index 2
);
scene.AddSkinnedMesh
(
mesh,
armature2.WorldMatrix,
joint3, // joint used for skinning joint index 0
joint4, // joint used for skinning joint index 1
joint5 // joint used for skinning joint index 2
);
scene.AttachToCurrentTest("skinned.glb");
scene.AttachToCurrentTest("skinned.gltf");
}
public void CreateSceneWithRandomShapes(bool useGpuInstancing)
{
TestContext.CurrentContext.AttachGltfValidatorLinks();
var rnd = new Random(177);
// create materials
var materials = Enumerable
.Range(0, 10)
.Select(idx => new MaterialBuilder()
.WithChannelParam(KnownChannel.BaseColor, KnownProperty.RGBA, new Vector4(rnd.NextVector3(), 1)))
.ToList();
// create meshes
var sphereMeshes = Enumerable
.Range(0, 10)
.Select(idx => materials[idx])
.Select(mat =>
{
var mesh = VPOSNRM.CreateCompatibleMesh("shape");
#if DEBUG
mesh.VertexPreprocessor.SetValidationPreprocessors();
#else
mesh.VertexPreprocessor.SetSanitizerPreprocessors();
#endif
mesh.AddSphere(mat, 0.5f, Matrix4x4.Identity);
mesh.Validate();
return(mesh);
});
var cubeMeshes = Enumerable
.Range(0, 10)
.Select(idx => materials[idx])
.Select(mat =>
{
var mesh = VPOSNRM.CreateCompatibleMesh("shape");
#if DEBUG
mesh.VertexPreprocessor.SetValidationPreprocessors();
#else
mesh.VertexPreprocessor.SetSanitizerPreprocessors();
#endif
mesh.AddCube(mat, Matrix4x4.Identity);
mesh.Validate();
return(mesh);
});
var meshes = sphereMeshes.Concat(cubeMeshes).ToArray();
// create scene
var scene = new SceneBuilder();
for (int i = 0; i < 100; ++i)
{
var mesh = meshes[rnd.Next(0, 20)];
// create random transform
var r = rnd.NextQuaternion();
var t = rnd.NextVector3() * 25;
scene.AddRigidMesh(mesh, (r, t));
}
// collapse to glTF
var gltf = scene.ToGltf2(useGpuInstancing ? SceneBuilderSchema2Settings.WithGpuInstancing : SceneBuilderSchema2Settings.Default);
var bounds = Runtime.MeshDecoder.EvaluateBoundingBox(gltf.DefaultScene);
// Assert.AreEqual(defaultBounds,instancedBounds);
// save the model as GLB
gltf.AttachToCurrentTest("shapes.glb");
scene.AttachToCurrentTest("shapes.plotly");
}