Mixing 2d Sprites and 3D

adshead · **Joined:** Thu Jan 03, 2008 3:06 pm **Posts:** 14

I notice in the latest beta this apparently is now possible?. I am working on a 2D platform game using 2D sprites and would like to make use of the particle functionality already built into Purebasic 3d Engine alongside my 2d Sprites.

Is this possible?

Comtois · **Posted:** Tue Oct 07, 2008 10:36 am

yes, it is possible

i changed few lines in the particle.pb example

Code:

;
; ------------------------------------------------------------
;
;   PureBasic - Particle
;
;    (c) 2003 - Fantaisie Software
;
; ------------------------------------------------------------
;

#CameraSpeed = 10

IncludeFile "Screen3DRequester.pb"

Define.f KeyX, KeyY, MouseX, MouseY

If InitEngine3D()

  Add3DArchive("Data", #PB_3DArchive_FileSystem)
  
  InitSprite()
  InitKeyboard()
  InitMouse()
  
  If Screen3DRequester()
    
    CreateSprite(0,64,64)
    StartDrawing(SpriteOutput(0))
      ;Box(0,0,64,64,#Blue)
      Circle(32,32,30,#Red)
    StopDrawing()
    
    
    LoadTexture(0, "flare.png")
    
    CreateMaterial(0, TextureID(0))
      DisableMaterialLighting(0, 1)
      MaterialBlendingMode   (0, #PB_Material_Add)

    CreateParticleEmitter(0, 10, 1, 1, 0)
      ParticleMaterial    (0, MaterialID(0))
      ParticleTimeToLive  (0, 2, 2)
      ParticleEmissionRate(0, 20)
      ParticleSize        (0, 30, 30)
      ParticleColorRange  (0, RGB(255,0,0), RGB(255,0,255))

    CreateCamera(0, 0, 0, 100, 100)
      CameraBackColor(0,-1)
      CameraLocate(0,0,0,100)
          
    Repeat
      Screen3DEvents()
      
      ClearScreen(RGB(0, 0, 0))
            
      If ExamineKeyboard()
        
        If KeyboardPushed(#PB_Key_Left)
          KeyX = -#CameraSpeed 
        ElseIf KeyboardPushed(#PB_Key_Right)
          KeyX = #CameraSpeed 
        Else
          KeyX = 0
        EndIf
                  
        If KeyboardPushed(#PB_Key_Up)
          KeyY = -#CameraSpeed 
        ElseIf KeyboardPushed(#PB_Key_Down)
          KeyY = #CameraSpeed 
        Else
          KeyY = 0
        EndIf

      EndIf
      
      If ExamineMouse()
        InputEvent3D(MouseX(), MouseY(), MouseButton(1), "")
        PointPick(0,MouseX()+32,MouseY()+32)
        MouseX = -(MouseDeltaX()/10)*#CameraSpeed/2
        MouseY = -(MouseDeltaY()/10)*#CameraSpeed/2
      EndIf
      
      ;RotateCamera(0, MouseY, MouseX, RollZ, #PB_Relative)
      ;MoveCamera  (0, KeyX, 0, KeyY)
      ParticleEmitterLocate(0,CameraX(0)+PickX()*100,CameraY(0)+PickY()*100,CameraZ(0)+PickZ()*100)
      
      RenderWorld()
      Screen3DStats()
      DisplayTransparentSprite(0,MouseX(),MouseY()) 
      FlipBuffers()
    Until KeyboardPushed(#PB_Key_Escape) Or Quit = 1
  EndIf
    
Else
  MessageRequester("Error", "The 3D Engine can't be initialized",0)
EndIf
  
End

IceSoft · **Posted:** Tue Oct 07, 2008 10:47 am

Works not here.

Fred · **Posted:** Tue Oct 07, 2008 12:39 pm

You need to use DX9 subsystem.

djes · **Posted:** Tue Oct 07, 2008 12:46 pm

This example does not work here.
With directx9 subsystem, in windowed, the 3d seems to be behind a black screen, where's some random transparent pixels (and sometime a big part of the screen) are permitting to see the flares. By removing CameraBackColor(0,-1) it's ok.

In fullscreen, the program is hanging on createsprite(0, 64, 64) (invalid memory access) and we can't come back to the desktop :/
With directx7, the program is hanging on StartDrawing(SpriteOutput(0)) (specified sprite is not initialised), even with changing parameters of createsprite().

Comtois · **Posted:** Tue Oct 07, 2008 12:57 pm

Well, i use subsystem directx9, and windowed mode (800x600).

I can see a sprite (red circle) and particle behind the sprite.

does original particle.pb example work, using directx9 for you ?

djes · **Posted:** Tue Oct 07, 2008 12:59 pm

Comtois wrote:

Well, i use subsystem directx9, and windowed mode (800x600).
I can see a sprite (red circle) and particle behind the sprite.

does original particle.pb example work, using directx9 for you ?

Yes, and even in fullscreen.

Fred · **Posted:** Tue Oct 07, 2008 1:21 pm

djes wrote:

With directx7, the program is hanging on StartDrawing(SpriteOutput(0)) (specified sprite is not initialised), even with changing parameters of createsprite().

DX7 isn't supported with 3d-2d mixing.

Comtois · **Posted:** Tue Oct 07, 2008 1:22 pm

i get this, and particle follow the sprite.

djes · **Posted:** Tue Oct 07, 2008 1:29 pm

Here's mine

You see the little dots and the fx behind.

Fred · **Posted:** Tue Oct 07, 2008 1:51 pm

CameraBackgroundColor() with -1 parameter isn't useful anymore as you can't put anything behind the 3d scene. It's now removed.

djes · **Posted:** Tue Oct 07, 2008 2:13 pm

Fred wrote:

CameraBackgroundColor() with -1 parameter isn't useful anymore as you can't put anything behind the 3d scene. It's now removed.

Ok! Anyway, it still doesn't work in fullscreen, even without CameraBackgroundColor()

netmaestro · **Joined:** Wed Jul 06, 2005 5:42 am **Posts:** 6465

Works beautifully here in windowed mode but causes an IMA at CreateSprite(0,64,64) in fullscreen. PB 4.3(x86) and DX9, latest beta Sprite lib from purebasic.com/beta/

Mistrel · **Joined:** Sat Jun 30, 2007 8:04 pm **Posts:** 2704

Is it any slower to draw using 2D commands on the 3D screen than it would be to use actual 3D sprites?

THCM · **Posted:** Thu Oct 09, 2008 11:05 am

Seems to work here. I'll get about 2100 fps.

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