Dynamic Mesh : no UV and COLOR updates

[eddy]

x64 win7

Code: Select all

InitEngine3D()
InitSprite()

AntialiasingMode(#PB_AntialiasingMode_None)

win=OpenWindow(#PB_Any, 0, 0, 800, 600, "Create QUAD mesh", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)
OpenWindowedScreen(WindowID(win), 0, 0, WindowWidth(win), WindowHeight(win))

cam=CreateCamera(#PB_Any, 0, 0, 100, 100)
CameraProjectionMode(cam, #PB_Camera_Orthographic)
CameraRange(cam, 0.1, 1000)
CameraBackColor(cam, RGB(255, 55, 0))
RotateCamera(cam, 180, 0, 0)

hidden=CreateEntity(#PB_Any, MeshID(CreateCube(#PB_Any, 100)), #PB_Material_None, 0, 0, 500)
ScaleEntity(hidden, 100, 100, 0.01)
HideEntity(hidden, 1)
RenderWorld()
If MousePick(cam, 0, 0)
   zx.f=Abs(PickX()/(ScreenWidth()/2))
   zy.f=Abs(PickY()/(ScreenHeight()/2))
   FreeEntity(hidden)
EndIf


w=512
h=512

tex=CreateTexture(#PB_Any, w, h)
If StartDrawing(TextureOutput(tex))
   DrawingMode(#PB_2DDrawing_Gradient)
   BackColor(RGB(162, 75, 51))
   FrontColor(RGB(71, 162, 51))
   CircularGradient(w, h, w/2)
   Box(0, 0, w, h)
   DrawingMode(#PB_2DDrawing_Default)
   Plot(0, 1, 0)
   Plot(1, 0, 0)
   Plot(0, 3, 0)
   Plot(3, 0, 0)
   StopDrawing()
EndIf
mat=CreateMaterial(#PB_Any, TextureID(tex))
MaterialFilteringMode(mat, #PB_Material_None)
MaterialCullingMode(mat, #PB_Material_NoCulling)
DisableMaterialLighting(mat, #True)

m=CreateMesh(#PB_Any, #PB_Mesh_TriangleList, #PB_Mesh_Dynamic)
MeshVertexPosition(0, 0, 0)
MeshVertexPosition(0, 0, 0)
MeshVertexPosition(0, 0, 0)
MeshFace(0, 1, 2)
FinishMesh(0)

UpdateMesh(m, 0)
MeshVertexPosition(0, 0, 0)
MeshVertexTextureCoordinate(0, 0)         ;<--- no effect ?
MeshVertexColor(RGBA(255, 255, 255, 255)) ;<--- no effect ?

MeshVertexPosition(w, 0, 0)
MeshVertexTextureCoordinate(1, 0)
MeshVertexColor(RGBA(255, 255, 255, 255))

MeshVertexPosition(w, h, 0)
MeshVertexTextureCoordinate(1, 1)
MeshVertexColor(RGBA(255, 255, 255, 255))

MeshVertexPosition(0, h, 0)
MeshVertexTextureCoordinate(0, 1)
MeshVertexColor(RGBA(255, 255, 255, 255))

MeshFace(0, 1, 2)
MeshFace(2, 3, 0)
FinishMesh(0)

e=CreateNode(#PB_Any, 0, 0, 500)
AttachNodeObject(e, MeshID(m))
SetMeshMaterial(m, MaterialID(mat))

posX.f=1.0
posY.f=1.0
MoveNode(e, (-ScreenWidth()/2.0+posX)*zx, (-ScreenHeight()/2.0+posY)*zy, 0)
ScaleNode(e, zx, zy, 1)

Repeat
   RenderWorld()
   FlipBuffers()
Until WaitWindowEvent(1)=#PB_Event_CloseWindow

[Comtois]

UpdateMesh() don't add uv and color. It should be done when you create for the first time your mesh.
the definition of the first vertex is used for all vertices, so you can create your mesh like this, and all vertices will have the UV and color available

Code: Select all

m=CreateMesh(#PB_Any, #PB_Mesh_TriangleList, #PB_Mesh_Dynamic)
MeshVertexPosition(0, 0, 0)
MeshVertexTextureCoordinate(0, 0)         
MeshVertexColor(RGBA(0, 0, 0, 0))
MeshVertexPosition(0, 0, 0)
MeshVertexPosition(0, 0, 0)
MeshFace(0, 1, 2)
FinishMesh(0)