public void AddGeometryData(MeshPartGeometryData data, MeshMaterial material, Matrix transform)
{
if (!parts.ContainsKey(material))
{
throw new InvalidOperationException("Material not created by the meshbuilder");
}
var p = parts[material];
var xTransform = transform.xna();
var sPositions = data.GetSourceVector3(MeshPartGeometryData.Semantic.Position);
var sNormals = data.GetSourceVector3(MeshPartGeometryData.Semantic.Normal);
var sTexcoords = data.GetSourceVector2(MeshPartGeometryData.Semantic.Texcoord);
var nPositions = new XnaVector3[sPositions.Length];
var nNormals = new XnaVector3[sNormals.Length];
var nTexcoords = sTexcoords;
XnaVector3.Transform(sPositions, ref xTransform, nPositions);
XnaVector3.TransformNormal(sNormals, ref xTransform, nNormals);
p.Positions.AddRange(nPositions);
p.Normals.AddRange(nNormals);
p.Texcoords.AddRange(nTexcoords);
}
public IMesh CreateMesh()
{
var mesh = new RAMMesh();
foreach (var pair in parts)
{
var mat = pair.Key;
var data = pair.Value;
if (data.Positions.Count == 0)
{
continue;
}
var geom = new MeshPartGeometryData();
geom.Sources.Add(new MeshPartGeometryData.Source
{
DataVector3 = data.Positions.ToArray(),
Number = 0,
Semantic = MeshPartGeometryData.Semantic.Position
});
geom.Sources.Add(new MeshPartGeometryData.Source
{
DataVector3 = data.Normals.ToArray(),
Number = 0,
Semantic = MeshPartGeometryData.Semantic.Normal
});
geom.Sources.Add(new MeshPartGeometryData.Source
{
DataVector2 = data.Texcoords.ToArray(),
Number = 0,
Semantic = MeshPartGeometryData.Semantic.Texcoord
});
geom.Sources.Add(new MeshPartGeometryData.Source
{
DataVector3 = calculateTangents(data),
Number = 0,
Semantic = MeshPartGeometryData.Semantic.Tangent
});
var part = new RAMMeshPart();
part.SetGeometryData(geom);
mesh.GetCoreData().Parts.Add(new MeshCoreData.Part
{
MeshMaterial = mat.ToMeshCoreDataMaterial(),
MeshPart = part,
ObjectMatrix = Matrix.Identity.xna()
});
}
return(mesh);
}
public static MeshPartGeometryData CreateTestSquare()
{
MeshPartGeometryData.Source positions = new MeshPartGeometryData.Source();
MeshPartGeometryData.Source normals = new MeshPartGeometryData.Source();
var texcoords = new Source();
positions.Semantic = MeshPartGeometryData.Semantic.Position;
positions.DataVector3 = new Vector3[6];
positions.DataVector3[0] = Vector3.Zero;
positions.DataVector3[1] = Vector3.UnitY;
positions.DataVector3[2] = Vector3.UnitX + Vector3.UnitY;
positions.DataVector3[3] = Vector3.Zero;
positions.DataVector3[4] = Vector3.UnitX + Vector3.UnitY;
positions.DataVector3[5] = Vector3.UnitX;
normals.Semantic = MeshPartGeometryData.Semantic.Normal;
normals.DataVector3 = new Vector3[6];
normals.DataVector3[0] = Vector3.UnitZ;
normals.DataVector3[1] = Vector3.UnitZ;
normals.DataVector3[2] = Vector3.UnitZ;
normals.DataVector3[3] = Vector3.UnitZ;
normals.DataVector3[4] = Vector3.UnitZ;
normals.DataVector3[5] = Vector3.UnitZ;
texcoords.Semantic = Semantic.Texcoord;
texcoords.DataVector2 = new Vector2[6];
texcoords.DataVector2[0] = new Vector2(0, 0);
texcoords.DataVector2[1] = new Vector2(0, 1);
texcoords.DataVector2[2] = new Vector2(1, 1);
texcoords.DataVector2[3] = new Vector2(0, 0);
texcoords.DataVector2[4] = new Vector2(1, 1);
texcoords.DataVector2[5] = new Vector2(1, 0);
MeshPartGeometryData data = new MeshPartGeometryData();
data.Sources.Add(positions);
data.Sources.Add(normals);
data.Sources.Add(texcoords);
return(data);
}
public static IMesh CreateSimpleTestMesh()
{
IMesh mesh;
mesh = new RAMMesh();
var part = new MeshCoreData.Part();
part.ObjectMatrix = Matrix.Identity;
part.MeshPart = new RAMMeshPart();
((RAMMeshPart)part.MeshPart).SetGeometryData(MeshPartGeometryData.CreateTestSquare());
var mat = new MeshCoreData.Material();
mat.DiffuseMap = GetTestTexture();
part.MeshMaterial = mat;
mesh.GetCoreData().Parts.Add(part);
return(mesh);
}
public void SetSourcesFromTangentVertices(short[] indices, TangentVertex[] vertices)
{
MeshPartGeometryData geom = this;
Source source;
var positions = new Vector3[indices.Length];
var normals = new Vector3[indices.Length];
var uvs = new Vector2[indices.Length];
var tangents = new Vector3[indices.Length];
for (int i = 0; i < indices.Length; i++)
{
positions[i] = vertices[indices[i]].pos;
normals[i] = vertices[indices[i]].normal;
uvs[i] = vertices[indices[i]].uv;
tangents[i] = vertices[indices[i]].tangent;
}
source = new Source();
geom.Sources.Add(source);
source.Semantic = Semantic.Position;
source.DataVector3 = positions;
source = new Source();
geom.Sources.Add(source);
source.Semantic = Semantic.Normal;
source.DataVector3 = normals;
source = new Source();
geom.Sources.Add(source);
source.Semantic = Semantic.Texcoord;
source.DataVector2 = uvs;
source = new Source();
geom.Sources.Add(source);
source.Semantic = Semantic.Tangent;
source.DataVector3 = tangents;
}
public void SetGeometryData(MeshPartGeometryData data)
{
geometryData = data;
}