;Save Mesh 3DS, on 26/9/06
Graphics3D 640,480,0,2
AppTitle "Save Mesh 3DS"
SetBuffer BackBuffer()
camera=CreateCamera() ;init world
light=CreateLight()
RotateEntity light,45,45,0
tex=MakeTestTexture(128,128) ;new texture
shape=0 ;type of shape to save
Select shape
Case 0
mesh1=CreateCube() : child1=CreateCube(mesh1)
PositionEntity child1,1,-1,1 : RotateEntity child1,30,-30,30
Case 1
mesh1=CreateSphere(8) : child1=CreateSphere(8,mesh1)
PositionEntity child1,1,1,-1
Case 2
mesh1=CreateCylinder(8,True) : child1=CreateCylinder(8,True,mesh1)
PositionEntity child1,1,1,1 : RotateEntity child1,30,30,-30
Case 3
mesh1=CreateCone(8,True) : child1=CreateCone(8,True,mesh1)
PositionEntity child1,1,-1,-1
Case 4
mesh1=LoadMesh("yourname.x")
Case 5
mesh1=LoadAnimMesh("yourname.x")
End Select
EntityTexture mesh1,tex ;texture
If child1 Then EntityTexture child1,tex
filename$="test.3ds" ;save to 3ds file
;texfile$="test.bmp" ;optional texture filename
ok=SaveMesh3DS(mesh1,filename$,texfile$)
mesh2=LoadMesh(filename$) ;load new 3ds
If Len(texfile$)=0 Then EntityTexture mesh2,tex ;texture
PositionEntity mesh1,-2,0,5 ;position to left
PositionEntity mesh2,2,0,5 ;position to right
While Not KeyHit(1)
RenderWorld()
TurnEntity mesh1,0.3,0.2,0.1
TurnEntity mesh2,0.3,0.2,0.1
If KeyHit(17) Then wf=Not wf : WireFrame wf ;W key
Text 0,0,"ok="+ok+" filename$="+filename$
Flip
Wend
Function SaveMesh3DS(mesh,filename$,texfile$="",diffuse=$CCCCCC)
;Saves a given mesh, or mesh hierarchy, as a 3DS file
;From "3dsinfo.txt" by Jochen Wilhelmy
;mesh=mesh/mesh hierarchy handle, filename$="name.3ds"
;texfile$=optional texture file, diffuse=optional diffuse color
Local file,piv,matname$,mnlen,tflen,ent,surf,si,mi,objname$,onlen
Local tssize,tmsize,tfsize,tosize,tcsize,tvsize,otsize
Local eobjsize,ematsize,editsize,i
file=WriteFile(filename$)
If Not file Return False ;fail code
piv=CreatePivot() ;pivot to tform vertices
;calculate chunk sizes and file size
matname$="Material"
mnlen=Len(matname$)+1
tflen=Len(texfile$)+1
ent=mesh
While ent
For si=1 To CountSurfaces(ent)
surf=GetSurface(ent,si)
mi=mi+1 : If mi<10 Then objname$="mesh0"+mi Else objname$="mesh"+mi
onlen=Len(objname$)+1
tssize=6+(CountTriangles(surf)*4) ;sizeof(Tri_Smooth)
tmsize=8+mnlen+(CountTriangles(surf)*2) ;sizeof(Tri_Material)
tfsize=8+(CountTriangles(surf)*4*2)+tmsize+tssize ;sizeof(Tri_FaceList)
tosize=8+(CountVertices(surf)*2) ;sizeof(Tri_VertexOptions)
tcsize=8+(CountVertices(surf)*2*4) ;sizeof(Tri_MappingCoords)
tvsize=8+(CountVertices(surf)*3*4) ;sizeof(Tri_VertexList)
otsize=6+tvsize+tcsize+tosize+54+tfsize ;sizeof(Object_TriMesh)
eobjsize=eobjsize+(6+onlen+otsize) ;sizeof(All_Edit_Objects)
Next
ent=NextChild(ent)
Wend
ematsize=6+(6+mnlen)+(15*3)+(14*6)+10 ;sizeof(Edit_Material)
If tflen>1 Then ematsize=ematsize+(6+(6+tflen)) ;Mat_TextureMap1
editsize=6+10+ematsize+10+eobjsize ;sizeof(Edit3DS)
;Main3DS Chunk
WriteShort file,$4D4D ;wChunkID, Main3DS
WriteInt file,6+10+editsize ;dwChunkSize, filesize
;Version3DS Chunk
WriteShort file,$0002 ;wChunkID, Version3DS
WriteInt file,10 ;dwChunkSize, sizeof(Version3DS)
WriteInt file,3 ;ChunkData, dwVersion3DS
;Edit3DS Chunk, Main3DS Subchunk
WriteShort file,$3D3D ;wChunkID, Edit3DS
WriteInt file,editsize ;dwChunkSize, editsize=6+ematsize+eobjsize
;Edit_MeshVersion, Edit3DS Subchunk
WriteShort file,$3D3E ;wChunkID, Edit_MeshVersion
WriteInt file,10 ;dwChunkSize, sizeof(Edit_MeshVersion)
WriteInt file,3 ;ChunkData, dwMeshVersion
;Edit_Material Chunk, Edit3DS Subchunk
WriteShort file,$AFFF ;wChunkID, Edit_Material
WriteInt file,ematsize ;dwChunkSize, ematsize=6+(6+mnlen)+(15*3)
;Mat_Name01 Chunk, Edit_Material Subchunk
WriteShort file,$A000 ;wChunkID, Mat_Name01
WriteInt file,6+mnlen ;dwChunkSize, sizeof(Mat_Name01)
WriteStringAscii(file,matname$) ;ChunkData, material name
WriteByte file,0 ;ChunkData, Ascii-z null byte
;Mat_Ambient Chunk, Edit_Material Subchunk
WriteShort file,$A010 ;wChunkID, Mat_Ambient
WriteInt file,15 ;dwChunkSize, sizeof(Mat_Ambient)
WriteShort file,$0011 ;wChunkID, bRGB
WriteInt file,9 ;dwChunkSize, sizeof(bRGB)
WriteRGBColor(file,$666666) ;ChunkData, ambient color
;Mat_Diffuse Chunk, Edit_Material Subchunk
WriteShort file,$A020 ;wChunkID, Mat_Diffuse
WriteInt file,15 ;dwChunkSize, sizeof(Mat_Diffuse)
WriteShort file,$0011 ;wChunkID, bRGB
WriteInt file,9 ;dwChunkSize, sizeof(bRGB)
WriteRGBColor(file,diffuse) ;ChunkData, diffuse color
;Mat_Specular Chunk, Edit_Material Subchunk
WriteShort file,$A030 ;wChunkID, Mat_Specular
WriteInt file,15 ;dwChunkSize, sizeof(Mat_Specular)
WriteShort file,$0011 ;wChunkID, bRGB
WriteInt file,9 ;dwChunkSize, sizeof(bRGB)
WriteRGBColor(file,$FFFFFF) ;ChunkData, specular color
;Mat_Shininess Chunk, Edit_Material Subchunk
WriteShort file,$A040 ;wChunkID, Mat_Shininess
WriteInt file,14 ;dwChunkSize, sizeof(Mat_Shininess)
WriteShort file,$0030 ;wChunkID, wPercent
WriteInt file,8 ;dwChunkSize, sizeof(wPercent)
WriteShort file,75 ;ChunkData, Shininess
;Mat_ShininessStrength Chunk, Edit_Material Subchunk
WriteShort file,$A041 ;wChunkID, Mat_ShininessStrength
WriteInt file,14 ;dwChunkSize, sizeof(Mat_ShininessStrength)
WriteShort file,$0030 ;wChunkID, wPercent
WriteInt file,8 ;dwChunkSize, sizeof(wPercent)
WriteShort file,20 ;ChunkData, ShininessStrength
;Mat_Transparency Chunk, Edit_Material Subchunk
WriteShort file,$A050 ;wChunkID, Mat_Transparency
WriteInt file,14 ;dwChunkSize, sizeof(Mat_Transparency)
WriteShort file,$0030 ;wChunkID, wPercent
WriteInt file,8 ;dwChunkSize, sizeof(wPercent)
WriteShort file,0 ;ChunkData, Transparency
;Mat_TransparencyFalloff Chunk, Edit_Material Subchunk
WriteShort file,$A052 ;wChunkID, Mat_TransparencyFalloff
WriteInt file,14 ;dwChunkSize, sizeof(Mat_TransparencyFalloff)
WriteShort file,$0030 ;wChunkID, wPercent
WriteInt file,8 ;dwChunkSize, sizeof(wPercent)
WriteShort file,0 ;ChunkData, TransparencyFalloff
;Mat_ReflectionBlur Chunk, Edit_Material Subchunk
WriteShort file,$A053 ;wChunkID, Mat_ReflectionBlur
WriteInt file,14 ;dwChunkSize, sizeof(Mat_ReflectionBlur)
WriteShort file,$0030 ;wChunkID, wPercent
WriteInt file,8 ;dwChunkSize, sizeof(wPercent)
WriteShort file,0 ;ChunkData, ReflectionBlur
;Mat_SelfIllumination Chunk, Edit_Material Subchunk
WriteShort file,$A084 ;wChunkID, Mat_SelfIllumination
WriteInt file,14 ;dwChunkSize, sizeof(Mat_SelfIllumination)
WriteShort file,$0030 ;wChunkID, wPercent
WriteInt file,8 ;dwChunkSize, sizeof(wPercent)
WriteShort file,0 ;ChunkData, SelfIllumination
;Edit_WireThickness Chunk, Edit_Material Subchunk
WriteShort file,$A087 ;wChunkID, Edit_WireThickness
WriteInt file,10 ;dwChunkSize, sizeof(Edit_WireThickness)
WriteFloat file,1 ;fWireThickness
;Mat_TextureMap1 Chunk, Edit_Material Subchunk
If tflen>1
WriteShort file,$A200 ;wChunkID, Mat_TextureMap1
WriteInt file,6+(6+tflen) ;dwChunkSize, sizeof(Mat_TextureMap1)
;Mat_TextureFilename, Mat_TextureMap1 Subchunk
WriteShort file,$A300 ;wChunkID, Mat_TextureFilename
WriteInt file,6+tflen ;dwChunkSize, sizeof(Mat_TextureFilename)
WriteStringAscii(file,texfile$) ;ChunkData, texture filename
WriteByte file,0 ;ChunkData, Ascii-z null byte
EndIf
;Edit_OneUnit Chunk, Edit3DS Subchunk
WriteShort file,$0100 ;wChunkID, Edit_OneUnit
WriteInt file,10 ;dwChunkSize, sizeof(Edit_OneUnit)
WriteFloat file,1 ;fOneUnit
;calculate each mesh object chunk sizes
ent=mesh : mi=0
While ent
For si=1 To CountSurfaces(ent)
surf=GetSurface(ent,si)
mi=mi+1 : If mi<10 Then objname$="mesh0"+mi Else objname$="mesh"+mi
onlen=Len(objname$)+1
tssize=6+(CountTriangles(surf)*4) ;sizeof(Tri_Smooth)
tmsize=8+mnlen+(CountTriangles(surf)*2) ;sizeof(Tri_Material)
tfsize=8+(CountTriangles(surf)*4*2)+tmsize+tssize ;sizeof(Tri_FaceList)
tosize=8+(CountVertices(surf)*2) ;sizeof(Tri_VertexOptions)
tcsize=8+(CountVertices(surf)*2*4) ;sizeof(Tri_MappingCoords)
tvsize=8+(CountVertices(surf)*3*4) ;sizeof(Tri_VertexList)
otsize=6+tvsize+tcsize+tosize+54+tfsize ;sizeof(Object_TriMesh)
eobjsize=6+onlen+otsize ;sizeof(Edit_Object)
;position/rotate pivot to tform surface vertices
PositionEntity piv,EntityX(ent,1),EntityY(ent,1),EntityZ(ent,1),1
RotateEntity piv,EntityPitch(ent,1),EntityYaw(ent,1),EntityRoll(ent,1),1
;Edit_Object Chunk, Edit3DS Subchunk
WriteShort file,$4000 ;wChunkID, Edit_Object
WriteInt file,eobjsize ;dwChunkSize, eobjsize=6+onlen+otsize
WriteStringAscii(file,objname$) ;ChunkData, object name
WriteByte file,0 ;ChunkData, Ascii-z null byte
;Object_TriMesh Chunk, Edit_Object Subchunk
WriteShort file,$4100 ;wChunkID, Object_TriMesh
WriteInt file,otsize ;dwChunkSize, otsize=6+tvsize+tcsize+54+tfsize
;Tri_VertexList Chunk, Object_TriMesh Subchunk
WriteShort file,$4110 ;wChunkID, Tri_VertexList
WriteInt file,tvsize ;dwChunkSize, tvsize=8+(nVerts*3*4)
WriteShort file,CountVertices(surf) ;ChunkData, wVerticesTotal
For i=0 To CountVertices(surf)-1 ;switch y and z axis
TFormPoint VertexX(surf,i),VertexY(surf,i),VertexZ(surf,i),piv,0
WriteFloat file,TFormedX() ;fVertexX
WriteFloat file,TFormedZ() ;fVertexY
WriteFloat file,TFormedY() ;fVertexZ
Next
;Tri_MappingCoords Chunk, Object_TriMesh Subchunk
WriteShort file,$4140 ;wChunkID, Tri_MappingCoords
WriteInt file,tcsize ;dwChunkSize, tcsize=8+(nVerts*2*4)
WriteShort file,CountVertices(surf) ;ChunkData, wVerticesTotal
For i=0 To CountVertices(surf)-1 ;invert v coord
WriteFloat file,VertexU(surf,i) ;fVertexU
WriteFloat file,-VertexV(surf,i) ;fVertexV
Next
;Tri_VertexOptions Chunk, Object_TriMesh Subchunk
WriteShort file,$4111 ;wChunkID, Tri_VertexOptions
WriteInt file,tosize ;dwChunkSize, tosize=8+(nVerts*2)
WriteShort file,CountVertices(surf) ;ChunkData, wVerticesTotal
For i=0 To CountVertices(surf)-1 ;invert v coord
WriteShort file,$0700 ;AllVertexOptions
Next
;Tri_Local Chunk, Object_TriMesh Subchunk
WriteShort file,$4160 ;wChunkID, Tri_Local
WriteInt file,54 ;dwChunkSize, sizeof(Tri_Local)
For i=0 To 3 ;X,Y,Z,Origin
If i=0 Then WriteFloat file,1 Else WriteFloat file,0 ;fLocal1
If i=1 Then WriteFloat file,1 Else WriteFloat file,0 ;fLocal2
If i=2 Then WriteFloat file,1 Else WriteFloat file,0 ;fLocal3
Next
;Tri_FaceList Chunk, Object_TriMesh Subchunk
WriteShort file,$4120 ;wChunkID, Tri_FaceList
WriteInt file,tfsize ;dwChunkSize, tfsize=8+(nTris*4*2)+tmsize+tssize
WriteShort file,CountTriangles(surf) ;ChunkData, wTrianglesTotal
For i=0 To CountTriangles(surf)-1 ;invert face order
WriteShort file,TriangleVertex(surf,i,2) ;wTriangleVertexA
WriteShort file,TriangleVertex(surf,i,1) ;wTriangleVertexB
WriteShort file,TriangleVertex(surf,i,0) ;wTriangleVertexC
WriteShort file,$0407 ;wFaceFlags
Next
;Tri_Material Chunk, Tri_FaceList Subchunk
WriteShort file,$4130 ;wChunkID, Tri_Material
WriteInt file,tmsize ;dwChunkSize, tmsize=8+mnlen+(nTris*2)
WriteStringAscii(file,matname$) ;ChunkData, material name
WriteByte file,0 ;ChunkData, Ascii-z null byte
WriteShort file,CountTriangles(surf) ;ChunkData, wTrianglesAssigned
For i=0 To CountTriangles(surf)-1
WriteShort file,i ;wTriangleIndex
Next
;Tri_Smooth Chunk, Tri_FaceList Subchunk
WriteShort file,$4150 ;wChunkID, Tri_Smooth
WriteInt file,tssize ;dwChunkSize, tssize=6+(nTris*4)
For i=0 To CountTriangles(surf)-1
WriteInt file,1 ;dwTriangleSmoothGroup
Next
Next
ent=NextChild(ent)
Wend
FreeEntity piv
CloseFile file
Return True ;success code
End Function
Function WriteStringAscii(file,ascii$)
;file=file handle, ascii$=ascii string
Local i,char$
For i=1 To Len(ascii$)
char$=Mid(ascii$,i,1)
WriteByte(file,Asc(char$))
Next
End Function
Function WriteRGBColor(file,rgb)
;file=file handle, rgb=3-byte value
WriteByte(file,(rgb And $FF0000) Shr 16) ;r
WriteByte(file,(rgb And $00FF00) Shr 8) ;g
WriteByte(file,(rgb And $0000FF)) ;b
End Function
Function NextChild(ent)
;Returns next child of entity as if it was on the same hierarchy level
;"NextChild(entity)", by Beaker
If CountChildren(ent)>0
Return GetChild(ent,1)
EndIf
Local foundunused=False
Local foundent=0,parent,sibling
While foundunused=False And ent<>0
parent=GetParent(ent)
If parent<>0
If CountChildren(parent)>1
If GetChild(parent,CountChildren(parent))<>ent
For siblingcnt=1 To CountChildren(parent)
sibling=GetChild(parent,siblingcnt)
If sibling=ent
foundunused=True
foundent=GetChild(parent,siblingcnt+1)
EndIf
Next
EndIf
EndIf
EndIf
ent=parent
Wend
Return foundent
End Function
Function MakeTestTexture(width,height)
Local texture,x,y,rgb
texture=CreateTexture(width,height)
LockBuffer(TextureBuffer(texture))
For y=0 To TextureHeight(texture)-1
For x=0 To TextureWidth(texture)-1
rgb=y+(y*256)+(x*256^2) ;gradient color
WritePixelFast x,y,rgb,TextureBuffer(texture)
Next
Next
UnlockBuffer(TextureBuffer(texture))
SetBuffer TextureBuffer(texture)
Color 255,255,255 : Oval 40,40,30,30
Color 0,0,0 : Text 50,50,"3DS" : Color 255,255,255
SetBuffer BackBuffer()
Return texture
End Function |
