79 lines
No EOL
2.4 KiB
C#
79 lines
No EOL
2.4 KiB
C#
using System;
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using System.Collections.Generic;
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using OpenTK.Graphics.OpenGL4;
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using Buffer = OpenTK.Graphics.OpenGL4.Buffer;
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namespace SM.OGL.Mesh
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{
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/// <summary>
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/// Contains information for meshes
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/// </summary>
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public abstract class GenericMesh : GLObject
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{
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/// <inheritdoc />
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protected override bool AutoCompile { get; } = true;
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/// <inheritdoc />
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public override ObjectLabelIdentifier TypeIdentifier { get; } = ObjectLabelIdentifier.VertexArray;
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/// <summary>
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/// The primitive type, that determinants how the mesh is drawn.
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/// <para>Default: Triangles</para>
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/// </summary>
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public virtual PrimitiveType PrimitiveType { get; } = PrimitiveType.Triangles;
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/// <summary>
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/// Contains the vertices for the mesh.
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/// </summary>
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public virtual VBO Vertex { get; }
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/// <summary>
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/// Contains the texture coords for the mesh.
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/// </summary>
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public virtual VBO UVs { get; }
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/// <summary>
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/// Contains the normals for the mesh.
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/// </summary>
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public virtual VBO Normals { get; }
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/// <summary>
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/// Represents the bounding box.
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/// </summary>
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public virtual BoundingBox BoundingBox { get; } = new BoundingBox();
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/// <summary>
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/// Connects the different buffer objects with ids.
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/// </summary>
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protected Dictionary<int, VBO> AttribDataIndex { get; }
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/// <summary>
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/// Stores indices for a more performance friendly method to draw objects.
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/// </summary>
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public virtual int[] Indices { get; set; }
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/// <summary>
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/// Generates the AttribDataIndex
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/// </summary>
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protected GenericMesh()
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{
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AttribDataIndex = new Dictionary<int, VBO>()
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{
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{0, Vertex},
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{1, UVs},
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{2, Normals},
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};
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}
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/// <inheritdoc />
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protected override void Compile()
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{
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_id = GL.GenVertexArray();
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GL.BindVertexArray(_id);
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if (AttribDataIndex == null) throw new Exception("[Critical] The model requires a attribute data index.");
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foreach (KeyValuePair<int, VBO> kvp in AttribDataIndex) kvp.Value?.BindBuffer(kvp.Key);
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GL.BindVertexArray(0);
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}
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}
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} |