Ok, I've been racking my brain on this for the last 2 hours... I hope someone can help.
All I'm trying to do is move the top vertex (0), away from or towards the base while still being able to rotate the triangle... that MoveVert doesn't do it, argh!
Graphics3D 800,600
pivot = CreatePivot()
cam = CreateCamera(pivot)
MoveEntity cam,0,0,-10
Global axis=CreatePivot()
mesh = CreateMesh()
surf = CreateSurface(mesh)
s# = .5
l# = 4
v0 = AddVertex(surf, 0, s*l, 0)
v1 = AddVertex(surf, s, 0, 0)
v2 = AddVertex(surf,-s, 0, 0)
AddTriangle(surf,v0,v1,v2)
EntityColor mesh, 10, 10,255
a# = 0
fps_milli=MilliSecs(): fps_counter=0:fpsworst=1000
While Not KeyDown(1)
If KeyDown(203) Then TurnPoints surf,0,3, 0, 0, 1 ;left
If KeyDown(205) Then TurnPoints surf,0,3, 0, 0, -1 ;right
If KeyDown(200) Then l=l+.01:MoveVert(surf,2,l) ;up
If KeyDown(208) Then l=l-.01:MoveVert(surf,2,l) ;down
RenderWorld
fps_counter=fps_counter+1
If (MilliSecs()-fps_milli)>999
fpstot=fps_counter
fps_milli=MilliSecs()
fps_counter=0
EndIf
If fpstot<fpsworst And fpstot>0 Then fpsworst = fpstot
Text 0,20, " FPS: "+fpstot+"/"+fpsworst
Text 0,40, " tris: "+TrisRendered()
Flip ;False
Wend
End
Function MoveVert(surf%,v%,l#)
vx#=VertexX(surf,v)+(l*VertexNX(surf,v))
vy#=VertexY(surf,v)+(l*VertexNY(surf,v))
vz#=VertexZ(surf,v)+(l*VertexNZ(surf,v))
VertexCoords surf,v,vx,vy,vz
End Function
Function TurnPoints(surf%,vertexIndex%,numberOfVertices%,x#,y#,z#)
RotateEntity axis,x,y,z
For i = vertexIndex To vertexIndex+numberOfVertices-1
TFormPoint VertexX(surf,i),VertexY(surf,i),VertexZ(surf,i),axis,0
VertexCoords surf,i,TFormedX(),TFormedY(),TFormedZ()
Next
End Function
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