EntityRadius
Blitz3D Forums/Blitz3D Beginners Area/EntityRadius
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| hi community, any chance to recenter the pivot of an object? my problem: 1stperson-cam, height 1.5m, gravity=on i use EntityRadius player,0.1,1.5 so that the camera is at eye level. but when i want to go through a door which is 2,1 m ill stuck. sure, cause the collision of player is 3m tall. player,0.1,1.0 - and i can pass the door but the cam is 1m above the floor (like a 1stchild-cam) any clue to solve this? is there a way to point the camera to the top of the radius and not in the middle? i can do a lot in b3d but i stuck on a door - what a shame!! thx 4 any help, chi |
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| Make the camera a child of the player entity and position it wherever you like relative to the latter. |
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couldnt get it to work! player=Createpivot() camera=CreateCamera(player) PositionEntity player,0,1.5,0 EntityRadius player,.2,1.5 EntityType player,1 CameraRange camera,.1,200 cameraclscolor camera,250,250,245 ;....loop MoveEntity player,0,-.05,0 ;fakegravity ........... here is a picture so you can see what i mean: campos = red dot  1) EntityRadius player,0.2,1.0 = 2m -> cam 1m -> pass door + bad camheight 2) EntityRadius player,0.2,1.5 = 3m -> cam 1.5m ->no pass + good camheight 3) what im lookin for! |
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| Maybe you could move the camera up before RenderWorld and then down after it ? If the player is a mesh, you could try FitMesh to change the pivot's location, or scan through all the vertices and rearrange them yourself. I think the pivot is allways @0, 0, 0, in mesh coordinates. I think I remember seeing a '3Dmidhandle' function in the code archives. |
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| couldnt get it to work! Because you haven't positioned the camera where you want it relative to the player. camera=CreateCamera() player=CreatePivot() PositionEntity player,0,1.5,0 EntityRadius player,.2,1.5 EntityType player,1 CameraRange camera,.1,200 cameraclscolor camera,250,250,245 EntityParent camera,player PositionEntity camera,0,1,0,False ...the last line there moves the camera one unit up from its parent. EDIT: EXAMPLE Here's a camera, set high on a player entity, with markers so you can see what's going on... player's view top-right, and you will observe that it is set in the correct place as it sweeps under the doorframe. |
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| hi sledge, thank you so much for your code! but its still not working in my code... i think its the fakegravity (or whatever) so here is my full code: media: http://lunamedia.heim.at/playground.zip
global width=800
global height=600
Global mousespeed#=0.22
Global camerasmoothness#=5.0
Graphics3D width,height,0,2
SetBuffer BackBuffer()
hidepointer
MoveMouse width/2,height/2
camera=CreateCamera()
CameraViewport camera,0,0,width,height
player=CreatePivot()
PositionEntity player,0,1.5,-3
EntityRadius player,.2,1.5 ;a value of ,.2,1 and i can walk through the door - but im to short now ;-(
EntityType player,1
CameraRange camera,.1,200
CameraClsColor camera,245,245,255
EntityParent camera,player
PositionEntity camera,0,1.3,0,False
Global map=LoadMesh("playground.b3d")
EntityType map,2
Collisions 1,2,2,2
walksnd=loadsound("footstep.wav")
SoundVolume walksnd,.2
head_bang_X#=0.016
head_bang_Y#=0.014
Collisions 1,2,2,2
While Not KeyHit(1)
cls
if mousedown(1) then shoe_size#=3.6:sp#=.018 else shoe_size#=2.5:sp#=.009
mxs#=CurveValue(MouseXSpeed()*mousespeed,mxs,camerasmoothness)
mys#=CurveValue(MouseYSpeed()*mousespeed,mys,camerasmoothness)
MoveMouse width/2,height/2
camxa#=camxa-mxs Mod 360
camya#=camya+mys
If camya<-89 Then camya=-89
If camya>89 Then camya=89
RotateEntity player,0,camxa,0
RotateEntity camera,camya,0,0
MoveEntity player,0,-.05,0
walking=0
If KeyDown(203) Then: MoveEntity player,-sp,0,0 : walking=1: EndIf
If KeyDown(205) Then: MoveEntity player, sp,0,0 : walking=1: EndIf
If KeyDown(208) Then: MoveEntity player,0,0,-sp : walking=1: EndIf
If KeyDown(200) Then: MoveEntity player,0,0, sp : walking=1: EndIf
If walking=1
a1#=(a1#+shoe_size) Mod 360
EndIf
PositionEntity camera,Cos(a1#)*head_bang_X#,Sin(90+a1#*2)*head_bang_Y#,0,0
UpdateWorld
RenderWorld
If Sin(90+a1*2)<-.85
If footstep_needed<>0
Color 255,255,255
playsound walksnd
footstep_needed=0
EndIf
Else
footstep_needed=1
EndIf
color 120,120,120
text 10,10,"arrows = walk, lmouse = run, esc = exit"
VWait
Flip 0
delay 1
Wend
clearworld()
End
Function CurveValue#(newvalue#,oldvalue#,increments )
If increments>1 oldvalue#=oldvalue#-(oldvalue#-newvalue#)/increments
If increments<=1 oldvalue=newvalue
Return oldvalue#
End Function
its not that im too lazy to do this on my own... im just too stupid. maybe someone can fix that? thank you, chi |
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| omg its working ;-) i changed to: player=Createpivot() PositionEntity player,0,1.5,-3 EntityRadius player,.2,1 EntityType player,1 camera=CreateCamera(player) CameraRange camera,.1,200 cameraclscolor camera,250,250,245 ;.... loop....... TranslateEntity camera, 0, 0.5, 0 updateworld renderworld ... i didnt know that i have to put translateentity into the loop, but now its clear! again, thx so much for your help... chi |
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| Cool. Been away for a few days so I'm glad you got it sorted in the meantime. |
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