Invisible Entities

The forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.

RiverRatt

Try this code for example. As is, the value of alpha is set to a float and called as an int resulting in 0. Change the value to 1 (in the function call) without the . and it will show sollid. Change the value back to .5 and add # to alpha# in each case and you will see a tranparent cube.

Open in online IDE

Graphics3D 640,480
SetBuffer BackBuffer()
cam=CreateCamera()
light=CreateLight()
cube=CreateCube()
ScaleEntity cube,2,2,2
cube2=create_the_cube(cube,.5)
;cube2=create_the_cube(cube,1)
While Not KeyHit(1)

PointEntity cam,cube2
RenderWorld
;Text 10,10,"alpha "+ alpha#
;Text 10,30,"alpha# "+alpha# 
Flip 
Wend
End

Function create_the_cube(cube,alpha)
cube2=CopyEntity (cube) 
EntityAlpha cube,alpha
PositionEntity cube,0,0,10
Return cube2 
End Function