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Vue F.A.Q (Last Updated: 2024 Nov 30 5:12 am)



Subject: Mapping Question


3ddave44 ( ) posted Tue, 06 April 2004 at 6:35 AM · edited Sat, 30 November 2024 at 12:57 PM

I've been trying to map a door bitmap onto a door-shaped rectangle. The image is basically the same shape as the rectangle. When mapped, the image tiles on the shape instead of just flat-mapping to it in the correct size (see pic(s)) (Note: my real door map is at work; this crappy one is just for my trying to figure it out). : )

vueDoor.jpg

Here's the door map

doorImage.jpg

Here's how it maps.

How do I get the map to fit the whole surface Once? (These are all the default mapping settings except that I did switch to Object space mapping instead of World mapping)

Thanks! Dave


gebe ( ) posted Tue, 06 April 2004 at 6:54 AM

file_104984.jpg

Open the material editor for this material and resize X and Y (picture scale). If ever you resize your door aftar that, you must adapt again the picture size.


3ddave44 ( ) posted Tue, 06 April 2004 at 7:50 AM

Thanks, I've played with those settings with no success. Firstly, I would think x=1 and y=1 would give me exactly what I want. But it doesn't. The X scale is pretty good (in the render, the doorknob dot is missing however) but the Y is off. Thinking I should reduce the Y scale to eliminate the tiling, I tried that; but I think I don't understand what the units are for the X and Y scale. Since the Y=1 is obviously not 1 to 1, I'm at a loss for understanding how to affect the change.


gebe ( ) posted Tue, 06 April 2004 at 9:04 AM

If the door is a resized cube, the best way is to create an exact map with UVmapper:-)


3ddave44 ( ) posted Tue, 06 April 2004 at 9:14 AM

Really? I do know how to use UV Mapper but I can't believe for something as standard as I would think this is that one has to go through all that. Export the cube as an obj, UV map it, reimport, etc. Seems like too much when most other programs can just map the image easily. Does this mean that Vue users really only use Procedural texturing and bitmapping is a 'no-no'? Even the notion of having to rescale the texture if I change the shape of the cube seems incredible. Is this really how Vue works? Dave


gebe ( ) posted Tue, 06 April 2004 at 9:27 AM

We use a lots bitmaps, but in some cases, they will not apply as you dream about. Maybe Max or Cinema 4D can:-)


3ddave44 ( ) posted Tue, 06 April 2004 at 9:58 AM

I guess I'll try the UV mapping option. I am surprised though because my "dream" is not so extravagant. This is really basic - I'm stunned frankly. : )


3ddave44 ( ) posted Tue, 06 April 2004 at 10:08 AM

Sorry, I tried to export my shaped cube as an .obj so I can work with it in UV Mapper but I can only export a .vob. So how does one go about UV mapping stuff for Vue... Dave - who's trying not to get discouraged. It's just that everytime I use Vue, I get stymied by one thing or another - and often when I ask about any particular problem there's never a cut and dry answer. For instance, I never got anyone at Vue or Phoul to be able to explain to me why my imported Poser figures suddenly turn around 180 degrees when they get to the end of their animation data... So, I keep trying but if simple mapping is going to be a problem, I may have to give it up. I only got it for it's ability to import Poser animation data and figures but maybe the new Carrara Poser plug-in will do that. Ho-hum... : )


gebe ( ) posted Tue, 06 April 2004 at 10:17 AM

You only can export from Vue Pro. You did not say what version you are using. Create a cube in any other software and export it as an OBJ (Poser maybe). And if you don't have any software where you can create it, just tell me and I will send you one. As you can resize it as you like once mapped, there is no size problem:-)


MartinPh ( ) posted Tue, 06 April 2004 at 10:35 AM

file_104985.jpg

Dave, I dont really see what your problem is. It took me less than ten minutes to get this right - merely a matter of adapting the picture scale, and using picture offset to fit the picture on the cube more precisely (units are pixels, so you need to enter fairly large values, 100s etc., to see the effect).


gebe ( ) posted Tue, 06 April 2004 at 10:40 AM

That's what I told him too, but he did not want to know that:-(


3ddave44 ( ) posted Tue, 06 April 2004 at 11:43 AM

Now wait, I didn't not want to know that, Gebe. I said I tried it but I couldn't understand what the units were so that I could avoid random playing around with numbers. Maybe the answer is that you can't avoid playing around with it - maybe that's just how it works. I did try all manner of positive and negative numbers in the scale boxes though before I ever bothered to ask... Martin's answer explains it somewhat, however the bottom of his texture is repeating at the top... So given that, would increasing the Y more get it to fit? (Oh, actually maybe playing with the offset more would do it). And if the units are pixels, what does the default 1.000 mean? I'm not trying to be contankerous folks; just trying to understand something that's not the most intuitive it could be ...and... it's not my fault that it's not intuitive or that it's an apparent shortcoming. Because of the ease with which other programs I use do this (Bryce and Carrara, Gebe; not even so high-end as MAX and Cinema4D as you suggested earlier); I guess I assumed it was a fairly standard mapping algorithm. I'll keep at it and see what happens but maybe I won't keep troubling the board with it. : ) Thanks. DJ


goldcatlizard ( ) posted Tue, 06 April 2004 at 12:05 PM

Those flip character animations that happen with poser are strange indeed. I think there's one peron that works at eon and he doesn't even use the software. What are we to do? Wait for an update that really is a guise to stop pirated software.


erka ( ) posted Tue, 06 April 2004 at 1:51 PM

I must say that 3ddave44 is absolutely right here. Vue is indeed a great program for its price, but the mapping functions are its major weakness. This is no "high end" feature. It is merely the result of Vue starting out as a pure landscape program, with a greater emphasis on procedural textures. I truly hope the next version will allow simple interactive mapping, or at least the logical assumption that a 1x1 ratio means that the image is applied exactly ONCE to a face of a cube or plane.


sittingblue ( ) posted Tue, 06 April 2004 at 2:06 PM

Attached Link: http://sittingblue.50megs.com/tutorials/cubes/index.htm

You may want to check out my cube mapping tutorial. The tutorial was written for Vue 4. My guess is the process is the same in Vue Pro.

Charles


MartinPh ( ) posted Tue, 06 April 2004 at 2:08 PM

If they are going to make it easier, which I agree they could, I would prefer it if you could size the image and the shape using the same units; the confusion in the present version results from the use of different units of size within the same picture.


sittingblue ( ) posted Tue, 06 April 2004 at 2:24 PM

I agree with y'all. E-on needs take a close look at what other programs doing to map native objects, then follow the best example. My personal opinion is an additional mapping mode is needed to map 1 to 1.

Charles


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