Hello Ekaterinam,
Thank you very much for your answers!
Sebastian, according to your last answer, does it mean that it is also possible
to project a texture on top of an object which has some other textures in it?
Which unit for a texture should then I use?
What I want to realize, is to mark on the terrain a specific area.
The terrain was build with VPB and seems it has alredy some properties and
textures in it.
The way how I see it I should project a texture on it ( which will mark an
area). But in all small examples I didn´t find and didn´t manage to have a
texture on another texture ( that it is still possbile to see both of them).
You might consider using a visitor to check which texture units are
already bound, but I guess if the Database is build with VPB, unit 2 is
okay for starting. Using a shader you are less bound to which
fixed-function texture matrix/coordinates are used.
Cheers
Sebastian
Thank you!
Cheers,
Ekaterina
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=70072#70072
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