Martin Kuball wrote:

> Am Montag, 11. August 2003 20:25 schrieben Sie:
> 
>>Martin Kuball wrote:
>>
>>>Hi!
>>>
>>>In B3DSceneMorph>>renderOn: the color of the morph is checked for
>>>translucency:
>>>
>>>	(color isTransparent or: [color isTranslucent])
>>>		ifTrue: [myRenderer restoreMorphicBackground: self bounds under: self].
>>>
>>>If I understand this, translucency includes transparency. So the explicit
>>>test for the latter is not necessary, isn't it?
>>>
>>>Som lines later:
>>>
>>>	color isTransparent
>>>		ifFalse:[myRenderer clearViewport: color].
>>>
>>>Should't this be "color isTranslucent" here?
>>
>>No. If the color is not transparent, the viewport must be filled with
>>the translucent color to get the "tint" effect.
> 
> 
> OK, agreed. But I'm right on the first one, am I? 

Almost. The latter is necessary while the former is not.

However, this is "intention-revealing" code. If there was only a test 
for translucency at the top and a test for transparency below, I'm sure 
the next guy like you would argue about it ;-)

-- Bert