[PD] [Gem] alpha transparency question........

chun lee leechun at leechun.freeserve.co.uk
Fri Jul 9 01:40:26 CEST 2004

On 8/7/04 9:42 am, "IOhannes m zmoelnig" <zmoelnig at iem.at> wrote:

> chris clepper wrote:
>> On Jul 7, 2004, at 6:11 PM, chun lee wrote:
>>> But don't you have to switch the rendering off and on again for the new
>>> rendering order to get effect? What was in my mind is that say both of
>>> the
>>> cubes are in a global rotation so that sometimes A is in front and other
>>> times B is in front.
>>> So there is no way to do this in openGL?
>> If you are directly feeding in matrix transform info using translate
>> then it would be possible to change render order on the fly to do front
>> to back rendering.
> you don't have to turn off+on the rendering engine to make the rendering
> order take effect. it works on the fly.
> so for simple objects this should work (see help-file 02/14).
> for complex (concave) objects, you are out of luck
> mfg.as.dr
> IOhannes

Thanks for your reply, I just tried changing the rendering order on the fly
but it does not seems to take any effect. The only way I could change the
rendering order is to type the number in gemhead's object box and than
switch the rendering off+on. What am I doing wrong? I thought I could assign
the rendering order by passing a number into gemhead's inlet, is this right?

I am doing this on OSX.



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