public static byte[] GetGlb(List <Triangle> triangles)
{
var materialCache = new MaterialsCache();
var default_hex_color = "#D94F33"; // "#bb3333";
var defaultMaterial = MaterialCreator.GetDefaultMaterial(default_hex_color);
var mesh = new MeshBuilder <VertexPositionNormal, VertexWithBatchId, VertexEmpty>("mesh");
foreach (var triangle in triangles)
{
MaterialBuilder material;
if (triangle.Shader != null)
{
material = materialCache.GetMaterialBuilderByShader(triangle.Shader);
}
else
{
material = defaultMaterial;
}
DrawTriangle(triangle, material, mesh);
}
var scene = new SceneBuilder();
scene.AddRigidMesh(mesh, Matrix4x4.Identity);
var model = scene.ToGltf2();
var bytes = model.WriteGLB().Array;
return(bytes);
}
public MaterialBuilder GetMaterialBuilderByShader(Shader shader)
{
var res = (from m in materials where m.Shader.Equals(shader) select m).FirstOrDefault();
if (res == null)
{
var materialBuilder = MaterialCreator.CreateMaterial(shader);
res = new MaterialAndShader {
Shader = shader, MaterialBuilder = materialBuilder
};
materials.Add(res);
}
return(res.MaterialBuilder);
}
public MaterialBuilder GetMaterialBuilderByColor(string color)
{
var res = (from m in materials where m.Color == color select m).FirstOrDefault();
if (res == null)
{
// create and add it to List
var rgb = ColorTranslator.FromHtml(color);
var materialBuilder = MaterialCreator.CreateMaterial(rgb.R, rgb.G, rgb.B);
res = new MaterialAndColor {
Color = color, MaterialBuilder = materialBuilder
};
materials.Add(res);
}
return(res.MaterialBuilder);
}
