public void AddVertBetween(int idx1, int idx2, DMesh dmesh)
{
int new_vert_idx;
if (AddedVert < 0)
{
Vector3 pos = (dmesh.vertex[vert[idx1]] + dmesh.vertex[vert[idx2]]) * 0.5f;
dmesh.AddVertexEditor(pos, false);
new_vert_idx = dmesh.vertex.Count - 1;
AddedVert = new_vert_idx;
}
else
{
new_vert_idx = AddedVert;
}
Vector2 new_uv = (tex_uv[idx1] + tex_uv[idx2]) * 0.5f;
vert.Insert(idx2, new_vert_idx);
normal.Insert(idx2, face_normal);
tex_uv.Insert(idx2, new_uv);
num_verts += 1;
}
public static void ConvertObjFileToDMesh(ObjFile obj_file, DMesh dm, bool units_inches, string obj_file_name, Editor editor, TextureManager tex_manager)
{
dm.Init(editor);
// Convert the verts
foreach (var v in obj_file.Vertices)
{
// Flip Z for coordinate system translation
#if DMESH_EDITOR
dm.AddVertexEditor(new Vector3(v.X, v.Y, -v.Z), false);
#else
dm.AddVertex(v.X, v.Y, -v.Z);
#endif
}
if (units_inches)
{
for (int i = 0; i < dm.vertex.Count; i++)
{
dm.vertex[i] *= 0.0254f;
}
}
// Convert the textures
for (var i = 0; i < obj_file.Materials.Count; i++)
{
var material = obj_file.Materials[i];
string tex_name = material.Diffuse.Texture;
string tex_id_name = tex_name != null?Path.GetFileNameWithoutExtension(tex_name) : material.Name;
string decal_tex_name = Path.Combine(editor.m_filepath_decal_textures, tex_id_name + ".png");
if (tex_name != null)
{
if (!CopyImportTextureToDecalFolder(obj_file_name, tex_name, editor.m_filepath_decal_textures))
{
Utility.DebugLog("No texture imported/updated: " + tex_name);
}
else
{
Utility.DebugLog("Imported/updated a texture: " + tex_name);
}
}
else if (!File.Exists(decal_tex_name))
{
using (var bmp = new Bitmap(1, 1, PixelFormat.Format32bppArgb)) {
bmp.SetPixel(0, 0, material.Diffuse.Color);
bmp.Save(decal_tex_name, ImageFormat.Png);
}
}
if (tex_manager.FindTextureIDByName(tex_id_name) < 0)
{
// Get the texture (if it exists)
if (File.Exists(decal_tex_name))
{
tex_manager.AddTexture(decal_tex_name);
}
else
{
// Try to steal it from the level directory instead
string level_tex_name = Path.Combine(editor.m_filepath_level_textures, tex_id_name + ".png");
if (File.Exists(level_tex_name))
{
// Copy it to the decal textures directory, then load it
if (!File.Exists(decal_tex_name))
{
File.Copy(level_tex_name, decal_tex_name);
tex_manager.AddTexture(decal_tex_name);
}
}
else
{
editor.AddOutputText("IMPORT WARNING: No PNG file could be found matching the name: " + tex_id_name);
}
}
}
dm.AddTexture(i, tex_id_name);
}
// Convert the faces
var vrt_idx = new int[3];
var uv = new Vector2[3];
var nrml = new Vector3[3];
var tris = new List <ObjFile.FaceVert[]>();
foreach (var f in obj_file.Faces)
{
// Triangulate face
tris.Clear();
var fv = f.FaceVerts;
if (fv.Length == 3)
{
tris.Add(fv);
}
else if (fv.Length == 4 &&
Vector3.Subtract(obj_file.Vertices[fv[0].VertIdx], obj_file.Vertices[fv[2].VertIdx]).LengthSquared >
Vector3.Subtract(obj_file.Vertices[fv[1].VertIdx], obj_file.Vertices[fv[3].VertIdx]).LengthSquared)
{
tris.Add(new [] { fv[0], fv[1], fv[3] });
tris.Add(new [] { fv[1], fv[2], fv[3] });
}
else // assume convex...
{
for (int i = 1; i < fv.Length - 1; i++)
{
tris.Add(new [] { fv[0], fv[i], fv[i + 1] });
}
}
foreach (var tri in tris)
{
for (var i = 0; i < 3; i++)
{
// Flip Z/V and reverse vertex order for coordinate system translation
int fi = 2 - i;
vrt_idx[i] = tri[fi].VertIdx;
nrml[i] = obj_file.Normals[tri[fi].NormIdx];
nrml[i].Z = -nrml[i].Z;
uv[i] = tri[fi].UVIdx >= 0 ? obj_file.UVs[tri[fi].UVIdx] : new Vector2();
uv[i].Y = 1.0f - uv[i].Y;
}
dm.AddFace(vrt_idx, nrml, uv, f.MatIdx);
}
}
}
