; EntityShader Example
; --------------------
; Requires Extended mode.

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

camera=CreateCamera()
PositionEntity camera,0,0,-5

light=CreateLight()
RotateEntity light,35,-30,0

; Load a material shader for the cube
shader=LoadShader("assets/help_surface.b3shader")

cube=CreateCube()

attached=True

While Not KeyDown(1)

    ; Press Space to attach or remove the entity shader
    If KeyHit(57) Then attached=Not attached

    ; Apply the shader to every surface of the cube (zero removes it)
    If attached Then EntityShader cube,shader Else EntityShader cube,0

    TurnEntity cube,0.2,0.4,0

    ; 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

    Color 255,255,255
    Text 0,0,"Space: toggle shader   Arrow keys: move camera   Esc: exit"
    If attached Then Text 0,20,"EntityShader cube,shader" Else Text 0,20,"EntityShader cube,0 (classic rendering)"

    Flip

Wend

FreeShader shader
End