Little glass and refraction effect (Fake)

Here's a "puki" version - NOTE: Doesn't work on all versions of Blitz3D - so you might just see a black cube and sphere. Plus, you might have to faff with it to get it rotating at desirable speed:

;another 2003 demo by puki - inspired by Mak's Multitexturing demo
;
Graphics3D 800,600,32,1
SetBuffer BackBuffer()
AmbientLight 255,255,255
;use whatever picture you like - some work better than others
path$="C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\water lilies.jpg"
i=LoadTexture( path$,64)
s = LoadSprite(path$)
ScaleSprite s,4,3
cube=CreateCube()
EntityTexture cube,i,0,2
UpdateNormals cube
PositionEntity cube,0,0,-1
;It looks better with a detail texture on the sphere to visually show rotation
;On my computer I use a glass one that shows slight blemishes and shadowing in the sphere
;without doing this, it doesn't visually look like the sphere is rotating
sphere=CreateSphere(32)
ScaleMesh sphere,1.3,1.3,1.3
EntityTexture sphere,i,0,2
UpdateNormals sphere
PositionEntity sphere,0,0,-1
camera=CreateCamera()
PositionEntity camera,0,0,-4
b1=2
b2=2
TextureBlend i,b2
While Not KeyHit(1)
TurnEntity cube,.1,.1,.1
TurnEntity sphere,.1,.2,.3
   UpdateWorld
   RenderWorld
   Flip
Wend
FreeEntity cube
FreeEntity sphere
FreeEntity camera
FreeTexture i
End

EDIT:
Actually, it works okay in 16bit - it didn't before. Blitz3D had problems with multitexturing in one of the recent updates I think - something like that and this type of effect was broken and wouldn't work for some people who had the *duff* version of Blitz3D.