public void Render()
{
if ( indices == null ) return;
// use a GlList for performance
if (glListNo >= 0)
{
Gl.glCallList(glListNo);
return;
}
// first run we create the glList and manually render our entity
glListNo = Gl.glGenLists(1);
Gl.glNewList(glListNo, Gl.GL_COMPILE);
// some 3ds files have no material faces, so we just draw all the faces
bool noMaterials = materialFaces.Count == 0;
if (noMaterials)
{
MaterialFaces m = new MaterialFaces();
m.Material = new Material();
materialFaces.Add(m);
}
foreach (MaterialFaces m in materialFaces)
{
Material material = m.Material;
// set up light properties
Gl.glMaterialfv (Gl.GL_FRONT_AND_BACK, Gl.GL_AMBIENT, material.Ambient);
Gl.glMaterialfv (Gl.GL_FRONT_AND_BACK, Gl.GL_DIFFUSE, material.Diffuse);
Gl.glMaterialfv (Gl.GL_FRONT_AND_BACK, Gl.GL_SPECULAR, material.Specular);
Gl.glMaterialf (Gl.GL_FRONT_AND_BACK, Gl.GL_SHININESS, material.Shininess);
// if we have a texture, bind it
if (material.TextureId >= 0 )
{
Gl.glBindTexture ( Gl.GL_TEXTURE_2D, material.TextureId );
Gl.glEnable( Gl.GL_TEXTURE_2D );
}
// Draw every triangle in the entity, it's normal, and it's material (if exists)
Gl.glBegin ( Gl.GL_TRIANGLES);
//foreach ( Triangle tri in indices )
for (int ii = 0; ii < (noMaterials ? indices.Length : m.Faces.Length); ii++)
{
Triangle tri = noMaterials ? indices[ii] : indices[m.Faces[ii]];
// Vertex 1
if (normalized) Gl.glNormal3d ( normals[tri.Vertex1].X, normals[tri.Vertex1].Y, normals[tri.Vertex1].Z );
if ( material.TextureId >= 0 ) Gl.glTexCoord2f ( texcoords [ tri.Vertex1 ].U, texcoords [ tri.Vertex1 ].V);
Gl.glVertex3d ( vertices[tri.Vertex1].X, vertices[tri.Vertex1].Y, vertices[tri.Vertex1].Z );
// Vertex 2
if (normalized) Gl.glNormal3d ( normals[tri.Vertex2].X, normals[tri.Vertex2].Y, normals[tri.Vertex2].Z );
if ( material.TextureId >= 0 ) Gl.glTexCoord2f ( texcoords [ tri.Vertex2 ].U, texcoords [ tri.Vertex2 ].V);
Gl.glVertex3d ( vertices[tri.Vertex2].X, vertices[tri.Vertex2].Y, vertices[tri.Vertex2].Z );
// Vertex 3
if (normalized) Gl.glNormal3d ( normals[tri.Vertex3].X, normals[tri.Vertex3].Y, normals[tri.Vertex3].Z );
if ( material.TextureId >= 0 ) Gl.glTexCoord2f( texcoords [ tri.Vertex3 ].U, texcoords [ tri.Vertex3 ].V);
Gl.glVertex3d ( vertices[tri.Vertex3].X, vertices[tri.Vertex3].Y, vertices[tri.Vertex3].Z );
}
Gl.glEnd();
}
Gl.glDisable( Gl.GL_TEXTURE_2D );
Gl.glEndList();
}
Entity ProcessObjectChunk(ThreeDSChunk chunk, Entity e)
{
while (chunk.BytesRead < chunk.Length)
{
ThreeDSChunk child = new ThreeDSChunk(reader);
switch ((Groups)child.ID)
{
case Groups.C_OBJECT_MESH:
ProcessObjectChunk(child, e);
break;
case Groups.C_OBJECT_VERTICES:
e.vertices = ReadVertices(child);
break;
case Groups.C_OBJECT_FACES:
e.indices = ReadIndices(child);
if (child.BytesRead < child.Length)
{
ProcessObjectChunk(child, e);
}
break;
case Groups.C_OBJECT_MATERIAL:
string name2 = ProcessString(child);
Console.WriteLine(" Uses Material: {0}", name2);
Material mat;
if (materials.TryGetValue(name2, out mat))
{
//e.material = mat;
MaterialFaces m = new MaterialFaces();
m.Material = mat;
int nfaces = reader.ReadUInt16();
child.BytesRead += 2;
//Console.WriteLine ( nfaces );
m.Faces = new UInt16[nfaces];
for (int ii = 0; ii < nfaces; ii++)
{
//Console.Write ( reader.ReadUInt16 () + " " );
m.Faces[ii] = reader.ReadUInt16();
child.BytesRead += 2;
}
e.MaterialFaces.Add(m);
}
else
{
Console.WriteLine(" Warning: Material '{0}' not found. ", name2);
//throw new Exception ( "Material not found!" );
SkipChunk(child);
}
break;
case Groups.C_OBJECT_UV:
int cnt = reader.ReadUInt16();
child.BytesRead += 2;
Console.WriteLine(" TexCoords: {0}", cnt);
e.texcoords = new TexCoord [cnt];
for (int ii = 0; ii < cnt; ii++)
{
e.texcoords [ii] = new TexCoord(reader.ReadSingle(), reader.ReadSingle());
}
child.BytesRead += (cnt * (4 * 2));
break;
default:
SkipChunk(child);
break;
}
chunk.BytesRead += child.BytesRead;
//Console.WriteLine ( " ID: {0} Length: {1} Read: {2}", chunk.ID.ToString("x"), chunk.Length , chunk.BytesRead );
}
return(e);
}
Entity ProcessObjectChunk( ThreeDSChunk chunk, Entity e )
{
while ( chunk.BytesRead < chunk.Length )
{
ThreeDSChunk child = new ThreeDSChunk ( reader );
switch ((Groups) child.ID)
{
case Groups.C_OBJECT_MESH:
ProcessObjectChunk ( child , e );
break;
case Groups.C_OBJECT_VERTICES:
e.vertices = ReadVertices ( child );
break;
case Groups.C_OBJECT_FACES:
e.indices = ReadIndices ( child );
if ( child.BytesRead < child.Length )
ProcessObjectChunk ( child, e );
break;
case Groups.C_OBJECT_MATERIAL:
string name2 = ProcessString ( child );
Console.WriteLine ( " Uses Material: {0}", name2 );
Material mat;
if ( materials.TryGetValue ( name2, out mat ) )
{
//e.material = mat;
MaterialFaces m = new MaterialFaces();
m.Material = mat;
int nfaces = reader.ReadUInt16 ();
child.BytesRead += 2;
//Console.WriteLine ( nfaces );
m.Faces = new UInt16[nfaces];
for ( int ii=0; ii<nfaces; ii++)
{
//Console.Write ( reader.ReadUInt16 () + " " );
m.Faces[ii] = reader.ReadUInt16 ();
child.BytesRead += 2;
}
e.MaterialFaces.Add(m);
}
else
{
Console.WriteLine ( " Warning: Material '{0}' not found. ", name2 );
//throw new Exception ( "Material not found!" );
SkipChunk ( child );
}
break;
case Groups.C_OBJECT_UV:
int cnt = reader.ReadUInt16 ();
child.BytesRead += 2;
Console.WriteLine ( " TexCoords: {0}", cnt );
e.texcoords = new TexCoord [ cnt ];
for ( int ii=0; ii<cnt; ii++ )
e.texcoords [ii] = new TexCoord ( reader.ReadSingle (), reader.ReadSingle () );
child.BytesRead += ( cnt * ( 4 * 2 ) );
break;
default:
SkipChunk ( child );
break;
}
chunk.BytesRead += child.BytesRead;
//Console.WriteLine ( " ID: {0} Length: {1} Read: {2}", chunk.ID.ToString("x"), chunk.Length , chunk.BytesRead );
}
return e;
}
public void Render()
{
if (indices == null)
{
return;
}
// use a GlList for performance
if (glListNo >= 0)
{
Gl.glCallList(glListNo);
return;
}
// first run we create the glList and manually render our entity
glListNo = Gl.glGenLists(1);
Gl.glNewList(glListNo, Gl.GL_COMPILE);
// some 3ds files have no material faces, so we just draw all the faces
bool noMaterials = materialFaces.Count == 0;
if (noMaterials)
{
MaterialFaces m = new MaterialFaces();
m.Material = new Material();
materialFaces.Add(m);
}
foreach (MaterialFaces m in materialFaces)
{
Material material = m.Material;
// set up light properties
Gl.glMaterialfv(Gl.GL_FRONT_AND_BACK, Gl.GL_AMBIENT, material.Ambient);
Gl.glMaterialfv(Gl.GL_FRONT_AND_BACK, Gl.GL_DIFFUSE, material.Diffuse);
Gl.glMaterialfv(Gl.GL_FRONT_AND_BACK, Gl.GL_SPECULAR, material.Specular);
Gl.glMaterialf(Gl.GL_FRONT_AND_BACK, Gl.GL_SHININESS, material.Shininess);
// if we have a texture, bind it
if (material.TextureId >= 0)
{
Gl.glBindTexture(Gl.GL_TEXTURE_2D, material.TextureId);
Gl.glEnable(Gl.GL_TEXTURE_2D);
}
// Draw every triangle in the entity, it's normal, and it's material (if exists)
Gl.glBegin(Gl.GL_TRIANGLES);
//foreach ( Triangle tri in indices )
for (int ii = 0; ii < (noMaterials ? indices.Length : m.Faces.Length); ii++)
{
Triangle tri = noMaterials ? indices[ii] : indices[m.Faces[ii]];
// Vertex 1
if (normalized)
{
Gl.glNormal3d(normals[tri.Vertex1].X, normals[tri.Vertex1].Y, normals[tri.Vertex1].Z);
}
if (material.TextureId >= 0)
{
Gl.glTexCoord2f(texcoords [tri.Vertex1].U, texcoords [tri.Vertex1].V);
}
Gl.glVertex3d(vertices[tri.Vertex1].X, vertices[tri.Vertex1].Y, vertices[tri.Vertex1].Z);
// Vertex 2
if (normalized)
{
Gl.glNormal3d(normals[tri.Vertex2].X, normals[tri.Vertex2].Y, normals[tri.Vertex2].Z);
}
if (material.TextureId >= 0)
{
Gl.glTexCoord2f(texcoords [tri.Vertex2].U, texcoords [tri.Vertex2].V);
}
Gl.glVertex3d(vertices[tri.Vertex2].X, vertices[tri.Vertex2].Y, vertices[tri.Vertex2].Z);
// Vertex 3
if (normalized)
{
Gl.glNormal3d(normals[tri.Vertex3].X, normals[tri.Vertex3].Y, normals[tri.Vertex3].Z);
}
if (material.TextureId >= 0)
{
Gl.glTexCoord2f(texcoords [tri.Vertex3].U, texcoords [tri.Vertex3].V);
}
Gl.glVertex3d(vertices[tri.Vertex3].X, vertices[tri.Vertex3].Y, vertices[tri.Vertex3].Z);
}
Gl.glEnd();
}
Gl.glDisable(Gl.GL_TEXTURE_2D);
Gl.glEndList();
}
