# EntityAlpha entity,alpha#

# Parameters

Entity - entity handle Alpha# - alpha level of entity

# Description

Sets the entity alpha level of an entity.
The alpha# value should be in a floating point value in the range 0-1. The default entity alpha setting is 1.
The alpha level is how transparent an entity is. A value of 1 will mean the entity is opaque. A value of 0 will mean the entity is completely transparent, i.e. invisible. Values between 0 and 1 will cause varying amount of transparency. This is useful for imitating the look of objects such as glass and other translucent materials.
An EntityAlpha value of 0 is especially useful as Blitz3D will not render entities with such a value, but will still involve the entities in collision tests. This is unlike HideEntity, which doesn't involve entities in collisions.

# Example

; EntityAlpha Example
; -------------------
Graphics3D 640,480
SetBuffer BackBuffer()
camera=CreateCamera()
light=CreateLight()
RotateEntity light,90,0,0
cube=CreateCube()
Back=CreateCube()
PositionEntity cube,0,0,5
PositionEntity back,0,0,15
ScaleEntity Back,10,2,1
EntityColor back,255,0,0
; Set initial entity color values
Alpha#=1
While Not KeyDown( 1 )
; Change alpha value depending on key pressed
If alpha#<0.01 Then alpha# = 0
If alpha#>1 Then alpha# = 1
If KeyDown( 2 )=True And Alpha#>0 Then Alpha#=Alpha#-0.01
If KeyDown( 3 )=True And alpha#<1 Then Alpha#=Alpha#+0.01
; Set entity alpha value
EntityAlpha cube,Alpha#
TurnEntity cube,0.1,0.1,0.1
TurnEntity back,1,0,0
RenderWorld
Text 0,0,"Press keys 1-2 to change EntityAlpha"
Text 0,20,"Entity Alpha: "+Alpha
Flip
Wend
End

Index
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