Texture mapping
Blitz3D Forums/Blitz3D Programming/Texture mapping
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| Hi, I have 1 mesh and add 15 more meshes to it. so now i have a mesh with 16 surfaces. How can i texture this as 1 surface? Thx |
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| You can use the AddMesh command, but you will probably lose the UV co-ords. Unless you copy them across that is. |
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| Thx, but this does not answer the question. I allready added 15 meshes to the first one, but when i aply a texture it seems to tile. I want 1 texture to stretch over all 16 surfaces. |
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| Try using the scaletexture commands to stretch it out. It's tiling because the UV co-ords aren't correct. Try either: Add the meshes together, either in blitz then save it out again, or, add the meshes together in a 3d modelling program, then adjust the UV co-ords outside of blitz. Or, using scaletexture command to stretch the texture. :) |
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| Ill try to explain it more, I want to avoid using third party tools, the output should not require any further editing. Here is a screen: REMOVED What you see is made out of 16 meshes/tiles. I take the first mesh and add the other meshes to it. So i end up with 1 mesh with 16 surfaces, right?? Now i can manipulate it as one mesh. Then i load a texture and scale it so that it should stretch and aply it. As you can see in the screen, the texure starts again on each surface. The texture scale is ok because you only see a portion on a tile, i just starts again on the next tile. I must be doing something wrong, but what? |
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| If you have used addmesh then you will end up with one surface. You'll need to manually set the UV co-ords then. You can't do much about that really exept adjusting the UV's. Have you tried using scaletexture? |
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| I used the AppMesh() function from the archives, thats why i end up with 16 surfaces. The texture is 512x512 and i scaled it to that using scaltexture, it works fine on blitz terrains. I want to edit and export it as 1 mesh but want to have tiles for culling. If i make it 1 surface, can i still hide tiles out of view? |
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| no |
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| I started over from scratch and got what i want exept the texture is not showing up. Here is what i have so far:
;;Terrain tester ;; Ferret 2005 ;;
Graphics3D 800,600,0,2
SetBuffer BackBuffer()
Global camera = CreateCamera()
CameraRange camera,1.0,10000
MoveEntity camera,1000,1000,1000
Global Camera_VelX# = 0
Global Camera_Velz# = 0
Global camera_velocity# = 1.1
Global camera_speed# = 1
Global Camera_Pitch# = 0
Global Camera_Yaw# = 0
Global WireCheck = False
Global MiTile = F_CreateTerrain()
ScaleEntity mitile,10,10,10
tex = LoadTexture("Map/color.png")
ScaleTexture tex,512,512
EntityTexture Mitile,tex
PointEntity camera,MiTile
While Not KeyHit(1)
If KeyHit(57)
WireFrame True
EndIf
UpdateGhostCam()
UpdateWorld()
RenderWorld()
Text 10,10,"Space=Wireframe"
Text 10,50,"X: "+EntityX(camera)+" Y: "+EntityY(camera)+" Z:"+EntityZ(camera)
Flip
Wend
End
Function F_CreateQuad(FQ_Size#)
;FQ_Size = FQ_Size +0.1
F_Mesh = CreateMesh()
F_Surf = CreateSurface(F_Mesh)
F_V1 = AddVertex ( F_Surf,0,0,0 )
F_V2 = AddVertex ( F_Surf,FQ_Size,0,0 )
F_V3 = AddVertex ( F_Surf,0,0,FQ_Size )
F_V4 = AddVertex ( F_Surf,FQ_Size,0,FQ_Size )
F_Tri1 = AddTriangle (F_Surf,F_V1,F_V2,F_V3)
F_Tri2 = AddTriangle (F_Surf,F_V2,F_V4,F_V3)
FlipMesh(F_Mesh)
Return(F_Mesh)
End Function
Function F_CreateTerrain(FT_Detail%=64,FT_Size%=1024)
F_Tile = CreateMesh()
F_XCount = 1
F_ZCount = 0
For F_Count = 1 To FT_Detail
F_Quad = F_CreateQuad(Sqr#(FT_Size)*4)
PositionEntity F_Quad,(Sqr#(FT_Size)*4) * (F_XCount-1) ,0,(Sqr#(FT_Size)*4) * (F_ZCount)
F_XCount = F_XCount + 1
If F_XCount > Sqr#(FT_Detail)
F_XCount = 1
F_ZCount = F_ZCount + 1
EndIf
EntityParent F_Quad,F_Tile
AddMesh F_Quad,F_Tile
Next
Return(F_Tile)
End Function
Function UpdateGhostCam()
Mouse_X_Speed#=MouseXSpeed()*0.5
Mouse_Y_Speed#=MouseYSpeed()*0.5
MoveMouse GraphicsWidth()/2,GraphicsHeight()/2
Camera_Pitch=Camera_Pitch+Mouse_Y_Speed#
Camera_Yaw=Camera_Yaw+Mouse_X_Speed#
RotateEntity camera,Camera_Pitch,-Camera_Yaw,0
If KeyDown(203) Then
Camera_VelX=Camera_VelX-camera_speed#
ElseIf KeyDown(205)
Camera_VelX=Camera_VelX+camera_speed#
EndIf
If KeyDown(208) Then
Camera_VelZ=Camera_VelZ-camera_speed#
ElseIf KeyDown(200)
Camera_VelZ=Camera_VelZ+camera_speed#
EndIf
Camera_VelX=Camera_VelX/camera_velocity#
Camera_VelZ=Camera_VelZ/camera_velocity#
MoveEntity camera,Camera_VelX,0,Camera_VelZ
If KeyDown(200) Then
MoveEntity camera,0,0,camera_speed#
EndIf
If KeyDown(208) Then
MoveEntity camera,0,0,-camera_speed#
EndIf
If KeyDown(205) Then
MoveEntity camera,camera_speed#,0,0
EndIf
If KeyDown(203) Then
MoveEntity camera,-camera_speed#,0,0
EndIf
End Function
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| Grmbl, how do i get the posted code in a codebox?? |
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| Home ... FAQ ... What are the forum codes? http://www.blitzbasic.com/faq/faq_entry.php?id=2 What is EntityParent F_Quad,F_Tile for? If you do AddMesh F_Quad,F_Tile in the next line And the result of Sqr# seems not to be what you expect ... If you rem the Line EntityParent (see above out) you see lots of tiles overlaying the others... |
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| It looks like another big quad is under the terrain, it is the only thing that scales and gets textured. How do i get rid of it? |
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| This is the entity you scaleentity mitile,10,10,10 You are not returning what you expect - and thats why its untextured If you delete Scaletexture tex,512,512 then you see your texture on the big square. I'd say - your concept of doing the whole thing is wrong. I would not glue meshes together but adding surfaces to that created Mesh. And texture them with Brushes (PaintSurface Surf,brush) |
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| If your using function (not related to your problem), use Global variables in the main code :o) |
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| Just a suggestion. Would Update Normals not be needed for the texture prob? |
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