Duplicate object issue

russellbdavis · 11th June 2012, 06:58 PM

I have created an object that is a light bloom for a runway lighting system. I am using a single light source PNG file on a flat plane surface. I can create the object, and then set the texture to it and the bloom effect with a gradient lightmap works great. But, if I duplicate the object, or copy the object, the transparency is lost on the copy. But if I create each light seperately, and assign the lightmap to it, it works fine. I then tried to group a number of them together, and then duplicate the group. The resulting problem is the same. I've attached the image showing the source group (which looks fine), and the copied group which has lost some of the transparency. Not all, but enough that it looks bad.

Any ideas for solving this problem?

Andy · 13th June 2012, 02:12 AM

This could be to do with the order the objects are rendered. Essentially, you need to render transparent objects last so you'll need to move them to the end of the hierarchy.

If you don't think it's this - please send me a sample mode file with the textures.

russellbdavis · 13th June 2012, 08:35 AM

ah, yes, I had forgotten about that. thanks for the reminder. :-)

11th June 2012, 06:58 PM	#1
russellbdavis Member Advanced member Join Date: Apr 2008 Location: Oklahoma City Posts: 46	Duplicate object issue I have created an object that is a light bloom for a runway lighting system. I am using a single light source PNG file on a flat plane surface. I can create the object, and then set the texture to it and the bloom effect with a gradient lightmap works great. But, if I duplicate the object, or copy the object, the transparency is lost on the copy. But if I create each light seperately, and assign the lightmap to it, it works fine. I then tried to group a number of them together, and then duplicate the group. The resulting problem is the same. I've attached the image showing the source group (which looks fine), and the copied group which has lost some of the transparency. Not all, but enough that it looks bad. Any ideas for solving this problem? Attached Images

13th June 2012, 02:12 AM	#2
Andy Administrator Professional user Join Date: Jun 2003 Posts: 4,565	Re: Duplicate object issue This could be to do with the order the objects are rendered. Essentially, you need to render transparent objects last so you'll need to move them to the end of the hierarchy. If you don't think it's this - please send me a sample mode file with the textures.

13th June 2012, 08:35 AM	#3
russellbdavis Member Advanced member Join Date: Apr 2008 Location: Oklahoma City Posts: 46	Re: Duplicate object issue ah, yes, I had forgotten about that. thanks for the reminder. :-)