Remove unused tint attribute from model shader

OpenRA.Game/Graphics/ModelVertex.cs

@@ -0,0 +1,53 @@
+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Runtime.InteropServices;
+
+namespace OpenRA.Graphics
+{
+	[StructLayout(LayoutKind.Sequential)]
+	public readonly struct ModelVertex
+	{
+		// 3d position
+		public readonly float X, Y, Z;
+
+		// Primary and secondary texture coordinates or RGBA color
+		public readonly float S, T, U, V;
+
+		// Palette and channel flags
+		public readonly float P, C;
+
+		public ModelVertex(in float3 xyz, float s, float t, float u, float v, float p, float c)
+			: this(xyz.X, xyz.Y, xyz.Z, s, t, u, v, p, c) { }
+
+		public ModelVertex(float x, float y, float z, float s, float t, float u, float v, float p, float c)
+		{
+			X = x; Y = y; Z = z;
+			S = s; T = t;
+			U = u; V = v;
+			P = p; C = c;
+		}
+	}
+
+	public sealed class ModelShaderBindings : ShaderBindings
+	{
+		public ModelShaderBindings()
+			: base("model")
+		{ }
+
+		public override ShaderVertexAttribute[] Attributes { get; }	= new[]
+		{
+			new ShaderVertexAttribute("aVertexPosition", 3, 0),
+			new ShaderVertexAttribute("aVertexTexCoord", 4, 12),
+			new ShaderVertexAttribute("aVertexTexMetadata", 2, 28),
+		};
+	}
+}