Hey, so i tried to convert the 3ds.cpp file from OpenB3d to minib3d. I din't change its contents - or at least I hope so - just the syntax. I did some changes like changing unsigned char to Byte and a list to an array but this shouldn't affect the loader.
Well i have a Mesh with 2 surfaces and it won't load correctly: There is only one surface loaded. Maybe someone who has openb3d and minib3d can try and load the same file with both loaders and can look into it, if they differ.
SuperStrict
Import sidesign.minib3d
Type T3dsLoader
Const M3D_3DS_RGB3F:Int = $0010
Const M3D_3DS_RGB3B:Int = $0011
Const M3D_3DS_RGBGAMMA3B:Int = $0012
Const M3D_3DS_RGBGAMMA3F:Int = $0013
Const M3D_3DS_PERCENTI:Int = $0030
Const M3D_3DS_PERCENTF:Int = $0031
Const M3D_3DS_MAIN:Int = $4D4D
Const M3D_3DS_3DEDITOR:Int = $3D3D
Const M3D_3DS_OBJECTBLOCK:Int = $4000
Const M3D_3DS_TRIMESH:Int = $4100
Const M3D_3DS_VERTEXLIST:Int = $4110
Const M3D_3DS_FACELIST:Int = $4120
Const M3D_3DS_FACEMATLIST:Int = $4130
Const M3D_3DS_TEXCOORDS:Int = $4140
Const M3D_3DS_BrushBLOCK:Int = $AFFF
Const M3D_3DS_BrushNAME:Int = $A000
Const M3D_3DS_BrushAMBIENT:Int = $A010
Const M3D_3DS_BrushDIFFUSE:Int = $A020
Const M3D_3DS_BrushSPECULAR:Int = $A030
Const M3D_3DS_BrushSHININESS:Int = $A040
Const M3D_3DS_TEXTUREMAP1:Int = $A200
Const M3D_3DS_TEXTUREMAP2:Int = $A33A
Const M3D_3DS_MAPFILENAME:Int = $A300
Const M3D_3DS_MAPVSCALE:Int = $A354
Const M3D_3DS_MAPUSCALE:Int = $A356
Const M3D_3DS_MAPUOFFSET:Int = $A358
Const M3D_3DS_MAPVOFFSET:Int = $A35A
Const M3D_3DS_MAPROTATION:Int = $A35C
Function Load3ds:TMesh(URL:String , parent_ent:TEntity)
Return New T3dsLoader.Load(URL, parent_ent)
End Function
Field Stream:TStream
Field ChunkID:Short
Field ChunkSize:Int
Field surface:TSurface
Field VertexCount:Int
Field TriangleCount:Int
Field mesh:TMesh
Field Brushs:TBrush[]
Field brush:TBrush
Field TextureLayer:Int
Field texture:TTexture
Field MovedTris:Int[]
Method ReadChunk()
ChunkID = Stream.ReadShort()
ChunkSize = Stream.ReadInt()
End Method
Method SkipChunk()
Stream.Seek(Stream.Pos()+ChunkSize-6)
End Method
Method ReadCString:String()
Local s:String
Local c:Byte=Stream.ReadByte()
'get String up To first New line character or End of file
While(c<>0 And Stream.Eof()=0)
s=s+Chr(c)
c=Stream.ReadByte()
Wend
Return s
End Method
Method ReadRGB(Format:Int, Red:Byte Var, Green:Byte Var, Blue:Byte Var)
Select (Format)
Case M3D_3DS_RGB3F
Red = Byte(Stream.ReadFloat()*255)
Green = Byte(Stream.ReadFloat()*255)
Blue = Byte(Stream.ReadFloat()*255)
Case M3D_3DS_RGB3B
Red = Stream.ReadByte()
Green = Stream.ReadByte()
Blue = Stream.ReadByte()
Case M3D_3DS_RGBGAMMA3F
Red = Byte(Stream.ReadFloat()*255)
Green = Byte(Stream.ReadFloat()*255)
Blue = Byte(Stream.ReadFloat()*255)
Case M3D_3DS_RGBGAMMA3B
Red = Stream.ReadByte()
Green = Stream.ReadByte()
Blue = Stream.ReadByte()
Default
SkipChunk()
End Select
End Method
Method ReadPercent:Byte(Format:Int )
Select (Format)
Case M3D_3DS_PERCENTI
Return Byte(Stream.ReadShort())
Case M3D_3DS_PERCENTF
Return Byte(Stream.ReadFloat())
Default
SkipChunk()
Return 0
End Select
End Method
Method ReadVertexList()
Local Index:Int
Local Position:Float[3]
VertexCount = Stream.ReadShort()
For Index = 0 Until VertexCount
Position[0] = Stream.ReadFloat()
Position[1] = Stream.ReadFloat()
Position[2] = Stream.ReadFloat()
surface.AddVertex(Position[0], Position[1], Position[2])
Next
End Method
Method ReadFaceList()
Local Index:Int
Local Indices:Int[3]
TriangleCount = Stream.ReadShort()
For Index = 0 Until TriangleCount
Indices[0] = Stream.ReadShort()
Indices[1] = Stream.ReadShort()
Indices[2] = Stream.ReadShort()
Stream.ReadShort() ' FaceFlags
surface.AddTriangle(Indices[0], Indices[1], Indices[2])
Next
End Method
Method ReadFaceMatList()
Local Name:String
Local Found:Int
Local Count:Int
Local Index:Int
Local brush:TBrush
Local New_surface:TSurface
Local v:Short
Name = ReadCString()
'Search For the BrushName
Found = False
For brush = EachIn Brushs
If (brush.name = Name)
Found = True
Exit
EndIf
Next
If (Found=True)
New_surface = mesh.CreateSurface()
Count = Stream.ReadShort()
'Stream.SeekFile(Stream.FilePos()+Count*2)
For Index = 0 Until Count
v = Stream.ReadShort()
Local v0:Int[3]
For Local i:Int=0 Until 3
v0[i]=surface.TriangleVertex(v,i)
Local x:Float,y:Float,z:Float,u:Float,v:Float,w:Float
x=surface.VertexX(v0[i])
y=surface.VertexY(v0[i])
z=surface.VertexZ(v0[i])
u=surface.VertexU(v0[i])
v=surface.VertexV(v0[i])
w=surface.VertexW(v0[i])
v0[i]=New_surface.AddVertex(x,y,z,u,v,w)
Next
New_surface.AddTriangle(v0[0],v0[1],v0[2])
'surface.RemoveTri(v)
Rem v=(v+1)*3
surface.tris[v-1]=0
surface.tris[v-2]=0
surface.tris[v-3]=0
End Rem
MovedTris = MovedTris[..MovedTris.length + 1]
MovedTris[MovedTris.length-1]=v
Next
New_surface.PaintSurface(brush)
EndIf
End Method
Method ReadTexCoords()
Local Count:Int
Local Index:Int
Local U:Float, V:Float
Count = Stream.ReadShort()
For Index = 0 Until Count
U = Stream.ReadFloat()
V = -Stream.ReadFloat()
surface.VertexTexCoords(Index, U, V,0, 0)
surface.VertexTexCoords(Index, U, V,0, 1)
Next
End Method
Method LoadMap()
Local Filename:String
'Int Pixmap
Filename = ReadCString()
'Pixmap = FileType(Filename)
'If Pixmap <> 0 Then
texture = TTexture.LoadTexture(Filename,4)
If (TextureLayer = M3D_3DS_TEXTUREMAP1)
' Layer 0
brush.BrushTexture(texture, 0, 0)
Else
' Layer 1
brush.BrushTexture(texture, 0, 1)
EndIf
'EndIf
End Method
Method ReadMap(Layer:Int)
texture = TTexture.CreateTexture(1,1)
TextureLayer = Layer
End Method
Method ReadTriMesh()
If (surface<>Null)
MovedTris.sort(False)
Local CheckSurface:Int=0
For Local tris:Int =EachIn MovedTris
TSurface.RemoveTri(surface,tris)
CheckSurface=1
Next
MovedTris=New Int[0]
If (surface.no_tris=0 And CheckSurface <>0)
surface.ClearSurface()
mesh.surf_list.remove(surface)
surface=Null
mesh.no_surfs=mesh.no_surfs-1
EndIf
EndIf
surface = mesh.CreateSurface()
End Method
Method ReadBrushBlock()
brush = TBrush.CreateBrush()
Brushs=Brushs[..Brushs.length+1]
Brushs[Brushs.length-1]=brush
End Method
Method New()
Stream = Null
ChunkID = 0
ChunkSize = 0
surface = Null
VertexCount = 0
TriangleCount = 0
mesh = Null
brush = Null
TextureLayer = 0
texture = Null
End Method
Method Load:TMesh(URL:String, parent_ent:TEntity)
Local Size:Int
Local Red:Byte, Green:Byte, Blue:Byte
'unsigned char Percent
'Local Pixmap:TPixmap
Stream = ReadFile(URL)
If (Stream = Null) Return Null
Size = Stream.Size()
Rem
fseek(Stream.pFile, 0, SEEK_END) ' seek To End of file
Size = ftell(Stream.pFile) ' get Current file pointer
fseek(Stream.pFile, 0, SEEK_SET)
End Rem
' Read Main-Chunk
ReadChunk()
If (ChunkID <> M3D_3DS_MAIN Or ChunkSize <> Size)
Stream.Close()
'Print "No 3DS File"
Return Null
EndIf
' Find 3DEditor-Chunk
While (Stream.Eof()=0)
ReadChunk()
If (ChunkID = M3D_3DS_3DEDITOR)
Exit
Else
SkipChunk()
EndIf
Wend
Local OldDir:String = CurrentDir()
If String(URL) <> "" Then ChangeDir(ExtractDir(String(URL)))
mesh = TMesh.CreateMesh(parent_ent)
While (Stream.Eof()=0)
ReadChunk()
Select (ChunkID)
Case M3D_3DS_OBJECTBLOCK
ReadCString() ' ' ObjectName
Case M3D_3DS_BrushBLOCK
ReadBrushBlock()
Case M3D_3DS_TRIMESH
ReadTriMesh()
Case M3D_3DS_VERTEXLIST
ReadVertexList()
Case M3D_3DS_FACELIST
ReadFaceList()
Case M3D_3DS_FACEMATLIST
ReadFaceMatList()
Case M3D_3DS_TEXCOORDS
ReadTexCoords()
Case M3D_3DS_BrushNAME
'Loader.Brush = CreateBrush()
brush.name = ReadCString()
Case M3D_3DS_BrushAMBIENT
'ReadChunk()
'ReadRGB(ChunkID, Red, Green, Blue)
'brush.SetAmbientColor(Red, Green, Blue)
Case M3D_3DS_BrushDIFFUSE
ReadChunk()
ReadRGB(ChunkID, Red, Green, Blue)
brush.BrushColor(Red, Green, Blue)
Case M3D_3DS_BrushSPECULAR
''Loader.ReadChunk()
''Loader.ReadRGB(Loader.ChunkID, Red, Green, Blue)
''Loader.Brush.SetSpecularColor(Red, Green, Blue)
Case M3D_3DS_BrushSHININESS
''Loader.ReadChunk()
''Percent = Loader.ReadPercent(Loader.ChunkID)
''Loader.Brush.BrushShininess(Percent)
Case M3D_3DS_MAPFILENAME
LoadMap()
Case M3D_3DS_MAPVSCALE
texture.v_scale = Stream.ReadFloat()
Case M3D_3DS_MAPUSCALE
texture.u_scale = Stream.ReadFloat()
Case M3D_3DS_MAPUOFFSET
texture.u_pos = Stream.ReadFloat()
Case M3D_3DS_MAPVOFFSET
texture.v_pos = Stream.ReadFloat()
Case M3D_3DS_MAPROTATION
texture.angle = Stream.ReadFloat()
Default
If ((ChunkID = M3D_3DS_TEXTUREMAP1) or (ChunkID = M3D_3DS_TEXTUREMAP2))
ReadMap(ChunkID)
Else
SkipChunk()
EndIf
End Select
Wend
Stream.Close()
If (surface<>Null)
MovedTris.sort(False)
Local CheckSurface:Int =0
For Local tris:Int=EachIn MovedTris
TSurface.RemoveTri(surface,tris)
CheckSurface=1
Next
MovedTris=New Int[0]
If (surface.no_tris=0 And CheckSurface <>0)
surface.ClearSurface()
mesh.surf_list.remove(surface)
surface=Null
mesh.no_surfs=mesh.no_surfs-1
EndIf
EndIf
ChangeDir(OldDir)
' Loader.Surface.UpdateVertices()
' Loader.Surface.UpdateTriangles()
mesh.UpdateNormals()
'/*Loader.Mesh.UpdateBuffer()
'Print Loader.Surface.Tris.Length
'Print Loader.Surface.no_verts
'Loader.Mesh.FlipMesh()*/
Return mesh
End Method
End Type
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