Rendering half screen
Blitz3D Forums/Blitz3D Programming/Rendering half screen
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| Is there any way of rendering one camera at a time? I have a horizontal splitscreen and I was wondering if there would be some way of showing a model on one screen but not the other. |
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| how about using CameraViewport camera,x,y,width,height? i think this command should help. |
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| You can do 2 renders before your flip. Render the first camera, and disable the second by using the cameraprojmode to hide the camera you dont want to render. Then hide your entity and the first camera using cameraprojmode again, then render the second camera (making sure you have unhidden it). |
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or just have 2 cameras with different viewports and they'll both render when you do renderworldGraphics3D 1024,768,32,2 light1 = CreateLight() TurnEntity light1,20,20,0 camera1 = CreateCamera() CameraViewport camera1,0,0,1024,384 camera2 = CreateCamera() CameraViewport camera2,0,384,1024,384 Cam1Mesh = CamMesh(camera1) Cam2Mesh = CamMesh(camera2) middle = CreatePivot() For n=1 To 10 c = CreateCube() RotateEntity c,Rand(0,359),Rand(0,359),Rand(0,359) EntityColor c,Rand(0,255),Rand(0,255),Rand(0,255) PositionEntity c,Rnd(-10,10),Rnd(-10,10),Rnd(-10,10) Next MoveEntity camera1,Rand(-20,20),Rand(-20,20),Rand(-20,20) MoveEntity camera2,Rand(-20,20),Rand(-20,20),Rand(-20,20) Repeat ms# = Float(MilliSecs())/100.0 PositionEntity camera1,Sin(ms)*10,0,Cos(ms)*15 PositionEntity camera2,-Sin(ms)*15,-Sin(ms)*10,-Cos(ms)*12 PointEntity camera1,middle PointEntity camera2,middle RenderWorld Flip Until KeyHit(1) Function CamMesh(Parent) c1 = CreateCube() c2 = CreateCone(6) PositionMesh c2,0,-1,0 AddMesh c1,c2 FreeEntity c1 RotateMesh c2,-90,0,0 ScaleMesh c2,.5,.5,.5 EntityParent c2,parent Return c2 End Function |
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| well the problem that i had with Uncle's idea was that when you call render world the second time to process the second camera, the renderer overwrites the first camera. EntityAutoFade is the only command that I saw that came close to what I need becuase it will fade an object according to how far each camera is from it. Unfortunatly, with my situation, I need the opposite effect that EntityAutoFade has. I guess i could render and copy the first camera's image and paste it after the second camera renders, but I don't know what kinda syntax to do that in. Anyway thanks for the help so far. |
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| >well the problem that i had with Uncle's idea was that >when you call render world the second time to process the > >second camera, the renderer overwrites the first camera. Not if you use the CameraViewport command. >EntityAutoFade is the only command that I saw that came >close to what I need becuase it will fade an object >according to how far each camera is from it. What does that have to do with split screen? >I guess i could render and copy the first camera's image >and paste it after the second camera renders, but I don't >know what kinda syntax to do that in. What is wrong with ¿?'s example? It does exactly what you asked for! Andy |
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| Indeed for it to work properly you need to set up your viewports. Im working on an editor which has 4 viewports, and 5 cameras. It has one camera for each viewport and a final camera which is renders the GUI. Here it is in action... http://www.youtube.com/watch?v=zSRheTOWz10 Here is the code used to set up the cameras... Function InitCameras() hudcam=CreateCamera() CameraViewport hudcam,0,0,GraphicsWidth(),GraphicsHeight() CameraClsMode hudcam,0,1 cube=CreatePivot() ;TOP VIEW CAMERA topcam=CreateCamera() ;create camera CameraViewport topcam,0,(height#),GraphicsWidth()/2,(height#); set viewport CameraClsColor topcam,110,110,110 TranslateEntity topcam,0,50,0 CameraZoom topcam,TopZoom# CameraRange topcam,0.1,8000 PointEntity topcam,cube ;SIDE VIEW CAMERA sidecam=CreateCamera() CameraViewport sidecam,0,0,GraphicsWidth()/2,height# CameraClsColor sidecam,110,110,110 TranslateEntity sidecam,-50,0,0 CameraZoom sidecam,SideZoom CameraRange sidecam,0.1,8000 PointEntity sidecam,cube ;FRONT VIEW CAMERA frontcam=CreateCamera() CameraViewport frontcam,GraphicsWidth()/2,0,GraphicsWidth()/2,height# CameraClsColor frontcam,110,110,110 TranslateEntity frontcam,0,0,-50 CameraZoom frontcam,FrontZoom CameraRange frontcam,0.1,8000 PointEntity frontcam,cube prevcam=CreateCamera() CameraViewport prevcam,GraphicsWidth()/2,height#,GraphicsWidth()/2,height# CameraClsColor prevcam,110,110,110 TranslateEntity prevcam,50,20,-50 PointEntity prevcam,cube CameraZoom prevcam,1.8 end function and here is the code I use to render the windows.
Function RenderAll()
ClsColor 50,50,50
Cls
CameraProjMode topcam,2
CameraProjMode frontcam,2
CameraProjMode sidecam,2
CameraProjMode prevcam,1
CameraProjMode hudcam,0
RenderWorld()
CameraProjMode topcam,0
CameraProjMode frontcam,0
CameraProjMode sidecam,0
CameraProjMode prevcam,0
CameraProjMode hudcam,1
RenderWorld()
flip 0
End Function
Hopefully this will help. |
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| Don't you need to change the cameraclsmode? |
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| I don't know if that would work but you could try using only one camera. Set its cameraviewport to top half of screen, renderworld with entity, hide entity, set cameraviewport to bottom half of screen, renderworld, flip. |
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| I don't know if that would work but you could try using only one camera. Set its cameraviewport to top half of screen, renderworld with entity, hide entity, set cameraviewport to bottom half of screen, renderworld, flip. It works! try this little program to see an example Graphics3D 1024,768,32 SetBuffer BackBuffer() camera=CreateCamera() cube=CreateCube() EntityColor cube,255,0,0 PositionEntity cube,0,0,0 sphere=CreateSphere() EntityColor sphere,0,255,0 PositionEntity sphere,2,0,0 light=CreateLight() PointEntity light,cube circ=0 Repeat PositionEntity camera,Cos(circ)*5,0,Sin(circ)*5 PointEntity camera,cube circ=circ+1 ShowEntity sphere CameraViewport camera,0,0,512,768 RenderWorld HideEntity sphere CameraViewport camera,512,0,512,768 RenderWorld Flip Until KeyHit(1) End |
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