; RenderDecalDrawCalls Example
; ----------------------------
; Requires Extended mode.

Graphics3D 640,480,0,2
SetBuffer BackBuffer()

SeedRnd MilliSecs()

camera=CreateCamera()
PositionEntity camera,0,0,-6

light=CreateLight()
RotateEntity light,45,45,0

; A wall that slowly collects paint splats
wall=CreateCube()
ScaleEntity wall,4,2.5,0.2
PositionEntity wall,0,0,3
EntityColor wall,110,120,135

; Paint an orange splat texture in memory
splat=CreateTexture(64,64,3)
SetBuffer TextureBuffer(splat)
ClsColor 0,0,0
Cls
Color 255,80,20
Oval 6,6,52,52,True
SetBuffer BackBuffer()
Color 255,255,255

While Not KeyDown(1)

    ; Space stamps a new splat at a random spot on the wall
    If KeyHit(57) Then
        decal=CreateDecal(splat)
        PositionEntity decal,Rnd(-3.5,3.5),Rnd(-2,2),2.8
        created=created+1
    EndIf

    ; Arrow keys move the camera
    If KeyDown(200) Then MoveEntity camera,0,0,0.1
    If KeyDown(208) Then MoveEntity camera,0,0,-0.1
    If KeyDown(203) Then TurnEntity camera,0,1,0
    If KeyDown(205) Then TurnEntity camera,0,-1,0

    RenderWorld

    Text 0,0,"Arrow keys: move camera   Space: add a splat   Esc: exit"
    ; RenderDecalDrawCalls reports the decal pass cost of the last completed frame
    Text 0,20,"Decals created: "+created+"   RenderDecalDrawCalls() = "+RenderDecalDrawCalls()

    Flip

Wend

End