Pour remplacer la commande "CreateTerrain" (en attendant qu'elle soit réparée en v4.61
) , je me suis rapidement bricolé ce matin une procédure "MyCreateTerrain", que vous trouverez dans l'exemple ci-dessous. Rien de révolutionnaire, mais ça peut dépanner, et puis ça m'a permis de voir comment fonctionne le nouveau "CreateMesh" (conclusion: il marche bien
).
Code : Tout sélectionner
; ---------------------------------------------------------------------------------------------------------------
; Author: Kelebrindae
; Date: November,10,2011
; PB version: v4.60
;
; Temporary replacement for the "CreateTerrain" command (broken in PB v4.60)
; ---------------------------------------------------------------------------------------------------------------
; NB: Don't exceed 255x255 terrains, because the max vertices number in an Ogre mesh is 652235 !
; ---------------------------------------------------------------------------------------------------------------
EnableExplicit
;************************************************************************************
; Name: myCreateTerrain
; Purpose: Create a terrain mesh
; Parameters:
; - name of the heightmap
; - terrain size X
; - terrain size Y
; - maximum height (= height of the white points in the heightmap)
; - numbers of cols in the mesh
; - numbers of rows in the mesh
; Return-Value: mesh number
;************************************************************************************
Procedure.i MyCreateTerrain(heightmap.s,sizeX.f,sizeZ.f,maxHeight.f,nbCols.i,nbRows.i)
Protected numImage.i,imSizeX.f,imSizeY.f, height.i
Protected numMesh.i,i.i,j.i
Protected v0.i,v1.i,v2.i,v3.i
Protected cellSizeX.f, cellSizeZ.f,scaleY.f
; Load the heightmap
numImage = LoadImage(#PB_Any,heightmap)
If IsImage(numImage) = #False
ProcedureReturn 0
EndIf
imSizeX = ImageWidth(numImage) - 1
imSizeY = ImageHeight(numImage) - 1
; Create the mesh
numMesh = CreateMesh(#PB_Any)
cellSizeX = sizeX / nbCols
cellSizeZ = sizeZ / nbRows
scaleY = maxHeight / 255.0
; Create the vertices, according to heightmap values
StartDrawing(ImageOutput(numImage))
For j = 0 To nbCols
For i = 0 To nbRows
height = Red( Point(i * (imSizeX/nbCols) , j * (imSizeY/nbRows) ) )
AddMeshVertex(i*cellSizeX,scaleY * height,j*cellSizeZ)
MeshVertexColor($FFFFFF)
MeshVertexTextureCoordinate( i * (1 / nbCols),j * (1 / nbRows) )
Next i
Next j
StopDrawing()
FreeImage(numImage)
; Create the faces
For j=0 To nbRows - 1
For i = 0 To nbCols - 1
v0 = i + j*(nbRows + 1)
v1 = i + j*(nbRows + 1) + 1
v2 = i + (j+1)*(nbRows + 1)
v3 = i + (j+1)*(nbRows + 1) + 1
AddMeshFace(v0, v2, v3 )
AddMeshFace(v0, v3, v1 )
Next i
Next j
; Finih and compute the normals
FinishMesh()
NormalizeMesh(numMesh)
ProcedureReturn numMesh
EndProcedure
DisableExplicit
;- Initialization
Global FullScreen.b
Resultat = MessageRequester("Create terrain","Full Screen ?",#PB_MessageRequester_YesNo)
If Resultat = 6
FullScreen=#True
Else
FullScreen=#False
EndIf
If InitEngine3D() = 0
MessageRequester( "Error" , "Can't initialize 3D, check if engine3D.dll is available" , 0 )
End
ElseIf InitSprite() = 0 Or InitKeyboard() = 0 Or InitMouse() = 0
MessageRequester( "Error" , "Can't find DirectX 7.0 or above" , 0 )
End
EndIf
If Fullscreen = #True
OpenScreen(1024,768,32,"Custom Terrain",#PB_Screen_SmartSynchronization)
Else
OpenWindow(0,0, 0, 800 , 500 ,"Custom Terrain")
OpenWindowedScreen(WindowID(0),0,0, 800, 500,0,0,0,#PB_Screen_SmartSynchronization)
EndIf
;- Terrain texture
CreateTexture(0,64,64)
StartDrawing(TextureOutput(0))
Box(0,0,64,64,$FFFFFF)
StopDrawing()
CreateMaterial(2,TextureID(0))
MaterialAmbientColor(2, #PB_Material_AmbientColors)
;- Terrain mesh
UsePNGImageDecoder()
UseJPEGImageDecoder()
heightmap.s = OpenFileRequester("Choisissez une Heightmap","","Images|*.png;*.bmp;*.jpg;*.jpeg",0)
If heightmap = ""
End
EndIf
numMesh = MyCreateTerrain(heightmap,500,500,50,250,250)
;- Terrain entity
CreateEntity(0,MeshID(numMesh),MaterialID(2))
EntityLocate(0,-50,0,-50)
;- Light
AmbientColor(0)
CreateLight(0,$FFFFFF, 0,500,500)
;- Camera
CreateCamera(0, 0, 0, 100, 100)
CameraBackColor(0,$FF7755)
CameraLocate(0, 400,100,500)
CameraLookAt(0,250,0,250)
#CameraSpeed = 1
;- Main loop
Repeat
While WindowEvent()
Delay(1)
Wend
If ExamineMouse()
MouseX = -(MouseDeltaX()/10)*#CameraSpeed
MouseY = -(MouseDeltaY()/10)*#CameraSpeed
EndIf
RotateCamera(0, MouseY, MouseX, RollZ, #PB_Relative)
If ExamineKeyboard()
If KeyboardPushed(#PB_Key_Up)
MoveCamera (0, 0, 0, -#CameraSpeed)
EndIf
If KeyboardPushed(#PB_Key_Down)
MoveCamera (0, 0, 0, #CameraSpeed)
EndIf
EndIf
RenderWorld()
FlipBuffers()
Until KeyboardPushed(#PB_Key_Escape) Or Quit = 1
A+
