Hello, and thanks up front for taking the time to read this,
I have a texture skinned to a rotating quad, I would like
to frame (like a picture frame) this quad. Currently I
have just been painting the frame onto the texture externally,
but I would like to have a set frame and swap through many
different pics. What would be the most efficient way of doing
this? Make a "frame" model and "attach" it to the quad and
just swap out the quad texture? Or can I do frame and quad as
one model, and use multiple textures???? Any other Ideas???
ps.. I know from sky boxes and "water" in progs I''ve made that
"attaching" different "models" in an animated enviroment
creates an unpleasent tesselation(?) effect. I would like to
avoid this if possible.
I don''t quite get what you mean by separate models here, but GL gives you complete control of when to texture, and which one to use.
Just bind the texture you which to use before rendering the quad, and bind another one (or disable texturing altogether) before rendering the frame. You might also want to lookup glPolygonOffset() if you plan on superposing two polygons at the same coordinates.
I don''t see where tesselation comes into play, sorry
There's a little more to it but that's the process. If you don't know how to do this, I will provide some example code.
EDIT: After re-reading your post, i think maybe I mis-understood. I think what you want is multi-texturing. Apply the first texture, then apply a frame texture over the first. in either case, one of these approaches has to be correct. =)
Edited by - mkaltner on November 20, 2001 2:58:53 PM
Thanks everyone for taking the time to answer...Its appreciated,
What I am doing is basically rendering a picture frame like the one that hangs on a wall and rotating it in 3d space, I was using a quad with a picture mapped to it. This picture had been edited to look like it was in a picture frame. I now want to keep the "frame" and swap a series of pictures in it. I''ve come to the conclusion that the best way is to create a 3d rectangle and map a frame texture on it with one side transparent inside this I will place the quad with the picture mapped on it then rotate them together, swapping the picture on the quad. I think this will be the easiest and fastest way to do this. However thanks again for helping me "brainstorm" my way to an answer 8o)