Hi all, I just read a tutorial on the necessity to add some perspective to your pics. Well I agree, but the author forgot to mention how you calculate the lines through your center of focus. I do remember something like from that back school...Can someone help me out ? This is what I'm reffering to: http://www.bryce4all.com/tutorials/pers.htm

If your looking at the shot through the camera, aren't you looking at it in perspective? I know what your getting at though, with a vanishing point. But by moving your camera around, you are in perspective, that's the beauty of 3D software like Bryce, it makes it easy to have perspective. One idea would be to make a cube and stretch it out and rotate it so you looking down it, then delete it, if that makes any sense. Good luck. kaom

Maybe I have to put it in different words: if you take a look at that tutorial, the author has a center of focus and alignes all objects along two lines crossing this point. My question is: how to I calculate the angle if the lines taking in account the distance ?

Mazey, I really want to answer your question. I Really do. To start with, I hope I understand your question/predicament and hope you're not just pulling my virtual leg. The kernal idea of the tutorial is to establish a background, mid-ground and fore-ground and therefore give the eye some clues as to the size of the space. Depending on how you place them you're directing the eye around the picture. When multi-replicating an object, as he did, the distance between objects will be constant. As you move the camara around that line will taper or flatten in perspective automatically (thanks to the programmer). Those lines drawn by the tutor were just examples of eye focus and aren't part of the program, nor are they neccesary to go about your designing, imho. I hope I have understood your question and given you feedback that will be useful beyond your need to laugh. deci6el

Why should I make fun of you ?! My question was serious. I do remember there is a perspective angle onto which you can roughly align your objects to create the feeling of depth. I do remember that was a certain angle, only I cant remember how to calculate it. Again, my question is serious - why should I make it up ?

Just pick a point that you feel will be the focal spot of your picture (usually on the horizon) and draw you imaginary lines radiating from there. the F.O.G.

Ok, Mazey, my misunderstanding. If you're still grappling with this, Kaom's solution is a good stand-in solution. Or if you are looking through the Director camara directly at the Camara, the lines of the Frustum can be used as a reference. The frustum is that trapezoid box projected from the Camara to define the volume of space that it sees. The thing to note there is that those lines converge at the camara and therefore aren't parallel, ie; not true perspective. This is only getting worse. Stretch a box or tube, really long, duplicate and translate so the length stays parallel and parent both to your camara. Now as you move about the lines should stretch out into the distance always trying to converge out in space. Hope this helps and sorry for the.. well, for everything.. in the world...for all time. good luck, don

Wow yeah, thats it !!! Finally lol. You know, I did remember something like that from back at school...teacher even made us sit down and draw all those lines and calculate the angles and everything....only I couldnt remember exactly.....Its been like this tune is in your head and you just cant remember what it is called..lol. No prob for the misunderstanding, well, I didnt put it in the best words - english isnt my first language you know. Trying to use your boxes might help me out here I guess. You know, when I try the "thumb rule" and align something my visual mind just isnt good enough. It always looks like its almost in a good perspective - but only almost. There is always something missing. Thats why I was looking for some kind of "helping tool" - some way to calculate it roughly. Last question: I'm a beginner at Bryce still, so when you say "translate" the box you mean.....? Lol. Just tell me what to click, hehe...;) Happy Brycin, Mazey

translate: change position in x y or z. Move left or right, etc. Not rotation or scale. I can see "translate" could be a confusing word if you're already translating languages. Good Luck, Mazey! don

LOL ! Yeah, confusing. But playing around with renderers I already thought it had something to do with the position ggg....Thanks for the help and the pic and so on...lol. Seeya, Mazey