private void Render(object sender, GlControlEventArgs e)
{
if (_shader == null)
{
return;
}
Gl.Clear(ClearBufferMask.DepthBufferBit);
Gl.MatrixMode(MatrixMode.Modelview);
var v = _cameraHelper.CameraMatrix;
var u = Matrix4x4.CreateRotationX(Mathf.ToRadian(90));
var m = u * v;
_shader.M = m;
FiguresHelper.Draw3DCross(50f, 1f);
Figure3DHelper.DrawSphere(15, 20, 20, true, Colors.Yellow);
Gl.LineWidth(1);
Figure3DHelper.DrawSphere(15, 20, 20, false, Colors.Red);
_satelite.Draw();
}
protected override void Draw(float deltaSeconds)
{
UpdateAnimation(deltaSeconds);
UpdateUniforms();
_cl.Begin();
_cl.SetFramebuffer(GraphicsDevice.SwapchainFramebuffer);
_cl.ClearColorTarget(0, RgbaFloat.Black);
_cl.ClearDepthStencil(1f);
Matrix4x4 worldMatrix =
Matrix4x4.CreateTranslation(0, 15000, -5000)
* Matrix4x4.CreateRotationX(3 * (float)Math.PI / 2)
* Matrix4x4.CreateScale(0.05f);
_cl.UpdateBuffer(_worldBuffer, 0, ref worldMatrix);
DrawMesh();
worldMatrix =
Matrix4x4.CreateTranslation(0, 15000, -5000)
* Matrix4x4.CreateRotationX(3 * (float)Math.PI / 2)
* Matrix4x4.CreateScale(0.07f);
_cl.UpdateBuffer(_worldBuffer, 0, ref worldMatrix);
DrawMesh();
_cl.End();
GraphicsDevice.SubmitCommands(_cl);
GraphicsDevice.SwapBuffers();
}
private void Render(object sender, GlControlEventArgs e)
{
if (_shader == null)
{
return;
}
var v = _cameraHelper.CameraMatrix;
_shader.M = v;
_shader.ShadingLevel = 0;
FiguresHelper.Draw3DCross(4, 1);
_shader.ShadingLevel = 1;
_shader.LightPos = new Vector3(1f, 1f, 1f);
var r1 = Matrix4x4.CreateRotationY(Mathf.ToRadian(_phi));
var t = Matrix4x4.CreateTranslation(new Vector3(_radius, 2f, 0f));
var r2 = Matrix4x4.CreateRotationX(Mathf.ToRadian(90)) * Matrix4x4.CreateRotationY(Mathf.ToRadian(90)) * Matrix4x4.CreateRotationZ(Mathf.ToRadian(45));
var scaleM = Matrix4x4.CreateScale(0.2f);
var r3 = Matrix4x4.CreateRotationY(Mathf.ToRadian(-_phi * 10));
var r4 = Matrix4x4.CreateRotationZ(Mathf.ToRadian(25));
var m = r3 * r2 * t * r1 * scaleM * r4;
_shader.M = m * v;
Figure3DHelper.DrawMesh(_boomerang, Colors.Chocolate);
_phi += _step;
}
private void OnMouseMove(object sender, MouseEventArgs e)
{
Control senderControl = (Control)sender;
GetNormalized(e.Location, senderControl, out float newX, out float newY);
if (_isLeftMousePressed)
{
float dx = newX - _prevPoint.X;
float dy = newY - _prevPoint.Y;
ModelMatrix *= Matrix4x4.CreateRotationX(-dy, Vector3.Zero);
ModelMatrix *= Matrix4x4.CreateRotationY(dx, Vector3.Zero);
}
if (_isRightMousePressed)
{
float dx = newX - _prevPoint.X;
float dy = newY - _prevPoint.Y;
float sensitivity = 50.0f;
dx = dx * sensitivity;
dy = dy * sensitivity;
_yaw += dx;
_pitch += dy;
if (_pitch > 89.0f)
{
_pitch = 89.0f;
}
if (_pitch < -89.0f)
{
_pitch = -89.0f;
}
Vector3 newFront;
newFront.X = (float)(Math.Cos(_yaw.ToRadians()) * Math.Cos(_pitch.ToRadians()));
newFront.Y = (float)Math.Sin(_pitch.ToRadians());
newFront.Z = (float)(Math.Sin(_yaw.ToRadians()) * Math.Cos(_pitch.ToRadians()));
_cameraFront = Vector3.Normalize(newFront);
}
_prevPoint.X = newX;
_prevPoint.Y = newY;
}
protected override void CreateResources(ResourceFactory factory)
{
_projectionBuffer = factory.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_viewBuffer = factory.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_worldBuffer = factory.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
Matrix4x4 worldMatrix =
Matrix4x4.CreateTranslation(0, 15000, -5000)
* Matrix4x4.CreateRotationX(3 * (float)Math.PI / 2)
* Matrix4x4.CreateScale(0.05f);
GraphicsDevice.UpdateBuffer(_worldBuffer, 0, ref worldMatrix);
ResourceLayout layout = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("Projection", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("View", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("World", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("Bones", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("SurfaceTex", ResourceKind.TextureReadOnly, ShaderStages.Fragment),
new ResourceLayoutElementDescription("SurfaceSampler", ResourceKind.Sampler, ShaderStages.Fragment)));
Texture texture;
using (Stream ktxStream = OpenEmbeddedAssetStream("goblin_bc3_unorm.ktx"))
{
texture = KtxFile.LoadTexture(
GraphicsDevice,
factory,
ktxStream,
PixelFormat.BC3_UNorm);
}
_texView = ResourceFactory.CreateTextureView(texture);
VertexLayoutDescription vertexLayouts = new VertexLayoutDescription(
new[]
{
new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3),
new VertexElementDescription("UV", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2),
new VertexElementDescription("BoneWeights", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float4),
new VertexElementDescription("BoneIndices", VertexElementSemantic.TextureCoordinate, VertexElementFormat.UInt4),
});
GraphicsPipelineDescription gpd = new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.DepthOnlyLessEqual,
new RasterizerStateDescription(FaceCullMode.Back, PolygonFillMode.Solid, FrontFace.CounterClockwise, true, false),
PrimitiveTopology.TriangleList,
new ShaderSetDescription(
new[] { vertexLayouts },
factory.CreateFromSpirv(
new ShaderDescription(ShaderStages.Vertex, Encoding.UTF8.GetBytes(VertexCode), "main"),
new ShaderDescription(ShaderStages.Fragment, Encoding.UTF8.GetBytes(FragmentCode), "main"))),
layout,
GraphicsDevice.SwapchainFramebuffer.OutputDescription);
_pipeline = factory.CreateGraphicsPipeline(ref gpd);
AssimpContext ac = new AssimpContext();
using (Stream modelStream = OpenEmbeddedAssetStream("goblin.dae"))
{
_scene = ac.ImportFileFromStream(modelStream, "dae");
}
_rootNodeInverseTransform = _scene.RootNode.Transform;
_rootNodeInverseTransform.Inverse();
_firstMesh = _scene.Meshes[0];
AnimatedVertex[] vertices = new AnimatedVertex[_firstMesh.VertexCount];
for (int i = 0; i < vertices.Length; i++)
{
vertices[i].Position = new Vector3(_firstMesh.Vertices[i].X, _firstMesh.Vertices[i].Y, _firstMesh.Vertices[i].Z);
vertices[i].UV = new Vector2(_firstMesh.TextureCoordinateChannels[0][i].X, _firstMesh.TextureCoordinateChannels[0][i].Y);
}
_animation = _scene.Animations[0];
List <int> indices = new List <int>();
foreach (Face face in _firstMesh.Faces)
{
if (face.IndexCount == 3)
{
indices.Add(face.Indices[0]);
indices.Add(face.Indices[1]);
indices.Add(face.Indices[2]);
}
}
for (uint boneID = 0; boneID < _firstMesh.BoneCount; boneID++)
{
Bone bone = _firstMesh.Bones[(int)boneID];
_boneIDsByName.Add(bone.Name, boneID);
foreach (VertexWeight weight in bone.VertexWeights)
{
vertices[weight.VertexID].AddBone(boneID, weight.Weight);
}
}
Array.Resize(ref _boneTransformations, _firstMesh.BoneCount);
_bonesBuffer = ResourceFactory.CreateBuffer(new BufferDescription(
64 * 64, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_rs = factory.CreateResourceSet(new ResourceSetDescription(layout,
_projectionBuffer, _viewBuffer, _worldBuffer, _bonesBuffer, _texView, GraphicsDevice.Aniso4xSampler));
_indexCount = (uint)indices.Count;
_vertexBuffer = ResourceFactory.CreateBuffer(new BufferDescription(
(uint)(vertices.Length * Unsafe.SizeOf <AnimatedVertex>()), BufferUsage.VertexBuffer));
GraphicsDevice.UpdateBuffer(_vertexBuffer, 0, vertices);
_indexBuffer = ResourceFactory.CreateBuffer(new BufferDescription(
_indexCount * 4, BufferUsage.IndexBuffer));
GraphicsDevice.UpdateBuffer(_indexBuffer, 0, indices.ToArray());
_cl = factory.CreateCommandList();
_camera.Position = new Vector3(110, -87, -532);
_camera.Yaw = 0.45f;
_camera.Pitch = -0.55f;
_camera.MoveSpeed = 1000f;
_camera.FarDistance = 100000;
}
protected override void CreateInternal(ReadOnlyMemory <byte> data)
{
var str = new ReadOnlyLinkedMemoryStream();
str.AddMemory(data);
_assContext ??= new AssimpContext();
Scene scene = _assContext.ImportFileFromStream(str,
PostProcessSteps.Triangulate |
PostProcessSteps.FlipUVs |
PostProcessSteps.OptimizeGraph |
PostProcessSteps.OptimizeMeshes);
var embeddedTextures = new List <Texture>();
for (var i = 0; i < scene.TextureCount; i++)
{
EmbeddedTexture assTexture = scene.Textures[i];
var embeddedTexture = new TextureAsset();
embeddedTexture.Create(assTexture.CompressedData);
embeddedTextures.Add(embeddedTexture.Texture);
}
_materials = new List <MeshMaterial>();
for (var i = 0; i < scene.MaterialCount; i++)
{
Material material = scene.Materials[i];
Color4D diffColor = material.ColorDiffuse;
bool embeddedTexture = material.HasTextureDiffuse && embeddedTextures.Count > material.TextureDiffuse.TextureIndex;
var emotionMaterial = new MeshMaterial
{
Name = material.Name,
DiffuseColor = new Color(new Vector4(diffColor.R, diffColor.G, diffColor.B, diffColor.A)),
DiffuseTextureName = embeddedTexture ? $"EmbeddedTexture{material.TextureDiffuse.TextureIndex}" : null,
DiffuseTexture = embeddedTexture ? embeddedTextures[material.TextureDiffuse.TextureIndex] : null
};
_materials.Add(emotionMaterial);
}
_animations = new List <SkeletalAnimation>();
ProcessAnimations(scene);
_meshes = new List <Mesh>();
Node rootNode = scene.RootNode;
SkeletonAnimRigNode animRigRoot = ProcessNode(scene, rootNode);
animRigRoot.LocalTransform *= Matrix4x4.CreateRotationX(-90 * Maths.DEG2_RAD); // Convert to right handed Z is up.
Entity = new MeshEntity
{
Name = Name,
Meshes = _meshes.ToArray(),
Animations = _animations.ToArray(),
AnimationRig = animRigRoot
};
object scaleData = scene.RootNode.Metadata.GetValueOrDefault("UnitScaleFactor").Data;
var scaleF = 1f;
if (scaleData is float f)
{
scaleF = f;
}
Entity.Scale = scaleF;
}
