- Upload meshlet test with obj model

Author: Jorgemagic

MeshOptimizerGen/HelloMeshlets/HelloMeshlets.csproj

@@ -3,10 +3,27 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>net8.0</TargetFramework>
+    <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Evergine.Mathematics" Version="2025.3.18.659" />
+	<PackageReference Include="Evergine.Common" Version="2025.3.18.7" />
+	<PackageReference Include="Evergine.Framework" Version="2025.3.18.7" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\Evergine.Bindings.Meshoptimizer\Evergine.Bindings.MeshOptimizer.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="Model\" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="horse_statue_01_1k.obj">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
 </Project>

MeshOptimizerGen/HelloMeshlets/Model/DataTypes/OBJAttrib.cs

@@ -0,0 +1,48 @@
+// Copyright © Plain Concepts S.L.U. All rights reserved. Use is subject to license terms.
+
+using Evergine.Mathematics;
+using System.Collections.Generic;
+
+namespace OBJRuntime.DataTypes
+{
+    /// <summary>
+    /// Represents the attributes of an OBJ file, including vertices, normals, texture coordinates, and other optional data.
+    /// </summary>
+    public class OBJAttrib
+    {
+        /// <summary>
+        /// Gets or sets the list of vertex positions ('v' xyz).
+        /// </summary>
+        public List<Vector3> Vertices = new List<Vector3>();
+
+        /// <summary>
+        /// Gets or sets the list of vertex weights ('v' w).
+        /// </summary>
+        public List<float> VertexWeights = new List<float>();
+
+        /// <summary>
+        /// Gets or sets the list of vertex normals ('vn').
+        /// </summary>
+        public List<Vector3> Normals = new List<Vector3>();
+
+        /// <summary>
+        /// Gets or sets the list of texture coordinates ('vt' (u, v)).
+        /// </summary>
+        public List<Vector2> Texcoords = new List<Vector2>();
+
+        /// <summary>
+        /// Gets or sets the list of texture coordinate weights ('vt' w, if present; otherwise unused).
+        /// </summary>
+        public List<float> TexcoordWs = new List<float>();
+
+        /// <summary>
+        /// Gets or sets the list of vertex colors, if present.
+        /// </summary>
+        public List<Vector3> Colors = new List<Vector3>();
+
+        /// <summary>
+        /// Gets or sets the list of skin weights for vertices, used for skeletal animation.
+        /// </summary>
+        public List<OBJSkinWeight> SkinWeights = new List<OBJSkinWeight>();
+    }
+}

MeshOptimizerGen/HelloMeshlets/Model/DataTypes/OBJIndex.cs

@@ -0,0 +1,25 @@
+// Copyright © Plain Concepts S.L.U. All rights reserved. Use is subject to license terms.
+
+namespace OBJRuntime.DataTypes
+{
+    /// <summary>
+    /// Represents an index structure used in OBJ files to support different indices for vertices, normals, and texture coordinates.
+    /// </summary>
+    public struct OBJIndex
+    {
+        /// <summary>
+        /// Gets or sets the index of the vertex. A value of -1 indicates that the vertex is not used.
+        /// </summary>
+        public int VertexIndex;
+
+        /// <summary>
+        /// Gets or sets the index of the normal. A value of -1 indicates that the normal is not used.
+        /// </summary>
+        public int NormalIndex;
+
+        /// <summary>
+        /// Gets or sets the index of the texture coordinate. A value of -1 indicates that the texture coordinate is not used.
+        /// </summary>
+        public int TexcoordIndex;
+    }
+}

MeshOptimizerGen/HelloMeshlets/Model/DataTypes/OBJJointAndWeight.cs

@@ -0,0 +1,21 @@
+// Copyright © Plain Concepts S.L.U. All rights reserved. Use is subject to license terms.
+
+namespace OBJRuntime.DataTypes
+{
+    /// <summary>
+    /// Represents a joint and its associated weight used in skeletal animation for OBJ models.
+    /// </summary>
+    public struct OBJJointAndWeight
+    {
+        /// <summary>
+        /// Gets or sets the identifier of the joint.
+        /// </summary>
+        public int JointId;
+
+        /// <summary>
+        /// Gets or sets the weight value that determines the influence of the joint.
+        /// Value typically ranges from 0 to 1, where 0 means no influence and 1 means full influence.
+        /// </summary>
+        public float Weight;
+    }
+}

MeshOptimizerGen/HelloMeshlets/Model/DataTypes/OBJLines.cs

@@ -0,0 +1,22 @@
+// Copyright © Plain Concepts S.L.U. All rights reserved. Use is subject to license terms.
+
+using System.Collections.Generic;
+
+namespace OBJRuntime.DataTypes
+{
+    /// <summary>
+    /// Represents a collection of lines in an OBJ file.
+    /// </summary>
+    public class OBJLines
+    {
+        /// <summary>
+        /// Gets or sets the list of indices for the vertices, normals, and texture coordinates of the lines.
+        /// </summary>
+        public List<OBJIndex> Indices = new List<OBJIndex>();
+
+        /// <summary>
+        /// Gets or sets the list of vertex counts for each line.
+        /// </summary>
+        public List<int> NumLineVertices = new List<int>();
+    }
+}

MeshOptimizerGen/HelloMeshlets/Model/DataTypes/OBJMaterial.cs

@@ -0,0 +1,243 @@
+// Copyright © Plain Concepts S.L.U. All rights reserved. Use is subject to license terms.
+
+using Evergine.Mathematics;
+using System.Collections.Generic;
+
+namespace OBJRuntime.DataTypes
+{
+    /// <summary>
+    /// Represents a material definition in the OBJ format, including properties for
+    /// ambient, diffuse, and specular components, as well as texture and PBR extensions.
+    /// </summary>
+    public class OBJMaterial
+    {
+        /// <summary>
+        /// Gets or sets the name of the material.
+        /// </summary>
+        public string Name = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the ambient color of the material.
+        /// </summary>
+        public Vector3 Ambient = Vector3.Zero;
+
+        /// <summary>
+        /// Gets or sets the diffuse color of the material.
+        /// </summary>
+        public Vector3 Diffuse = Vector3.One;
+
+        /// <summary>
+        /// Gets or sets the specular color of the material.
+        /// </summary>
+        public Vector3 Specular = Vector3.Zero;
+
+        /// <summary>
+        /// Gets or sets the transmittance color of the material.
+        /// </summary>
+        public Vector3 Transmittance = Vector3.Zero;
+
+        /// <summary>
+        /// Gets or sets the emission color of the material.
+        /// </summary>
+        public Vector3 Emission = Vector3.Zero;
+
+        /// <summary>
+        /// Gets or sets the shininess of the material.
+        /// </summary>
+        public float Shininess = 1.0f;
+
+        /// <summary>
+        /// Gets or sets the index of refraction of the material.
+        /// </summary>
+        public float Ior = 1.0f;
+
+        /// <summary>
+        /// Gets or sets the dissolve factor of the material (1 = opaque, 0 = fully transparent).
+        /// </summary>
+        public float Dissolve = 1.0f;
+
+        /// <summary>
+        /// Gets or sets the illumination model of the material.
+        /// </summary>
+        public int Illum = 0;
+
+        // Texture information
+
+        /// <summary>
+        /// Gets or sets the texture name for the ambient map.
+        /// </summary>
+        public string AmbientTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the diffuse map.
+        /// </summary>
+        public string DiffuseTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the specular map.
+        /// </summary>
+        public string SpecularTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the specular highlight map.
+        /// </summary>
+        public string SpecularHighlightTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the bump map.
+        /// </summary>
+        public string BumpTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the displacement map.
+        /// </summary>
+        public string DisplacementTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the alpha map.
+        /// </summary>
+        public string AlphaTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the reflection map.
+        /// </summary>
+        public string ReflectionTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture options for the ambient map.
+        /// </summary>
+        public OBJTextureOption AmbientTexopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the diffuse map.
+        /// </summary>
+        public OBJTextureOption DiffuseTexopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the specular map.
+        /// </summary>
+        public OBJTextureOption SpecularTexopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the specular highlight map.
+        /// </summary>
+        public OBJTextureOption SpecularHighlightTexopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the bump map.
+        /// </summary>
+        public OBJTextureOption BumpTexopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the displacement map.
+        /// </summary>
+        public OBJTextureOption DisplacementTexopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the alpha map.
+        /// </summary>
+        public OBJTextureOption AlphaTexopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the reflection map.
+        /// </summary>
+        public OBJTextureOption ReflectionTexopt = new OBJTextureOption();
+
+        // PBR extension
+
+        /// <summary>
+        /// Gets or sets the roughness value for PBR rendering.
+        /// </summary>
+        public float Roughness = 0.8f;
+
+        /// <summary>
+        /// Gets or sets the metallic value for PBR rendering.
+        /// </summary>
+        public float Metallic = 0.0f;
+
+        /// <summary>
+        /// Gets or sets the sheen value for PBR rendering.
+        /// </summary>
+        public float Sheen = 0.0f;
+
+        /// <summary>
+        /// Gets or sets the clearcoat thickness for PBR rendering.
+        /// </summary>
+        public float ClearcoatThickness = 0.0f;
+
+        /// <summary>
+        /// Gets or sets the clearcoat roughness for PBR rendering.
+        /// </summary>
+        public float ClearcoatRoughness = 0.0f;
+
+        /// <summary>
+        /// Gets or sets the anisotropy value for PBR rendering.
+        /// </summary>
+        public float Anisotropy = 0.0f;
+
+        /// <summary>
+        /// Gets or sets the anisotropy rotation value for PBR rendering.
+        /// </summary>
+        public float AnisotropyRotation = 0.0f;
+
+        /// <summary>
+        /// Gets or sets the texture name for the roughness map.
+        /// </summary>
+        public string RoughnessTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the metallic map.
+        /// </summary>
+        public string MetallicTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the sheen map.
+        /// </summary>
+        public string SheenTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the emissive map.
+        /// </summary>
+        public string EmissiveTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture name for the normal map.
+        /// </summary>
+        public string NormalTexname = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the texture options for the roughness map.
+        /// </summary>
+        public OBJTextureOption Roughness_texopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the metallic map.
+        /// </summary>
+        public OBJTextureOption Metallic_texopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the sheen map.
+        /// </summary>
+        public OBJTextureOption Sheen_texopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the emissive map.
+        /// </summary>
+        public OBJTextureOption Emissive_texopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the texture options for the normal map.
+        /// </summary>
+        public OBJTextureOption Normal_texopt = new OBJTextureOption();
+
+        /// <summary>
+        /// Gets or sets the padding value.
+        /// </summary>
+        public int Pad2;
+
+        /// <summary>
+        /// Gets or sets the key-value pairs for unknown parameters.
+        /// </summary>
+        public Dictionary<string, string> UnknownParameter = new Dictionary<string, string>();
+    }
+}