Hi I need to ask a question?
Blitz3D Forums/Blitz3D Beginners Area/Hi I need to ask a question?
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| Hello, I have a model I made and I was wandering what would be the best way to make a cam movie forward to the end of my model and keeps doing that until the user clicks on next, I have all that done just do not know away to make the cam move by its self. Thanks |
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| Update the position of the camera each frame along it's local z-axis? |
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| What i would do : Turn move the entity as you want. Get the position orientation of the entity with EntityX(), EntityY(), EntityZ(), EntityPitch(), EntityYaw(), EntityRoll(). Then position rotate your camera at the same position orientation than the entity with PositionEntity() RotateEntity(). Then Turn Move the camera as you want so that it is positioned as you want (behind the character/vehicle) and look where you want (at the character/vehicle), you could also use PointEntity. |
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Graphics3D 800,600,32
SetBuffer BackBuffer()
Local Mesh=LoadMesh("mymesh.x")
Local Length#=MeshDepth(Mesh)*0.5
Local Height#=MeshHeight(Mesh)*0.5
Local Duration#=10000; 10 seconds
Local Ratio#=(Length*2)/Duration
Local Cam=CreateCamera()
PositionEntity Mesh, 0,0-Height,Lenth
PositionEntity Camera,0,(Height)+1,0
Local Timestamp=Millisecs()
Local Time
While (Time<Duration)
PositionEntity Cam,0,(Height)+1,Time*Ratio#
RenderWorld
Flip
Time=Millisecs()-Timestamp
Wend
ClearWorld
EndGraphics
End |
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| In an old 3d animation tool I used to use what they did was have a pivot for the camera, a pivot for the camera 'look at position' and move them independently. In such a case point entity and position entity would be all that you need. In fact I use something very similar in my own game. |
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| An old ugly code to demonstrate what i mean : http://www.blitzbasic.com/codearcs/codearcs.php?code=2933 (press tab to change the view) |
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