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Vue F.A.Q (Last Updated: 2024 Nov 26 6:57 am)



Subject: Need help with ground or infinite plains


macmullin ( ) posted Mon, 28 October 2002 at 3:50 PM · edited Tue, 26 November 2024 at 1:53 PM

file_29334.jpg

I have working on a new Archeology Site project, and I wanted to test it out by doing some renders in Vue. But, I have small problem I would like to over come. I have a terrain which goes down below the ground or infinite plains. You can see the terrain in the first image has a pit. In this render the ground plain is way below and under the pit obj.

I would like the ground plain to meet the edges of the pit at the top along the outer edges (blend in) but with out cutting through my pit - as you see in the second image (I have used a different texture to make it more obvious to see). How can I get the ground plain to blend into the upper surfaces or edges of my terrian but not show up in the pit?


MightyPete ( ) posted Mon, 28 October 2002 at 4:09 PM

Boolean difference between the plain and say a cube should work. Your basically making a hole in the plain so the stuff under it will show threw. As for the blending part. I wouldn't do it that way I'd make a new bigger hill sorta terrain. Like your so close there you got no room. Make the ground of the pit extend a few miles then you will not have to blend it with the infinite plain. Obviously you can't do that so make a new terrain same material then use the cube idea to boolean the hole in it. The infinite plain will be so far in the distance you will not be able to see where they meet. Make sence? There is other ways and that's blend the material of the plain with the small hill you got there by altitude but it's harder to work with. You don't have a lot of altitude to work with there.


audity ( ) posted Mon, 28 October 2002 at 4:09 PM

Hi !

use a boolean difference to create a square hole in the ground plane. The object hierarchy in the world browser should be like this :

Difference

infinite plane
cube

:-) Eric


gebe ( ) posted Mon, 28 October 2002 at 4:28 PM

file_29335.jpg

I'm not absolutely sure I understand what you want. But here is a sample. I have created a new terrain and placed it to blend from the existing terrain to the ground of the pit. To make it at its top flat (so it stays under the existing terrain) I have used the iceberg feature.

If this is not the answer you expected, please write again
:-)
Guitta


macmullin ( ) posted Mon, 28 October 2002 at 4:59 PM

I am still a newbbie at Vue. I am not quite sure what you guys are talking about, but I will give it a try. If I have problems I will come back. thanks :-)


gebe ( ) posted Mon, 28 October 2002 at 5:02 PM

macmullin, I can send you the file if you want:-) Guitta


MightyPete ( ) posted Mon, 28 October 2002 at 5:27 PM

Here I'll expain it another way so maybe it makes more sence. Never Never start something like this on a infinite plane ! It's basically flat and is difficult to work with. Start instead on a really huge flatish terrain. Problem is here you already did all this work on your mesh. So now your only option is to try to save your work by making the ground you got there bigger extending several miles off in the distance. Doing that is going to cover the hole so you'll need to crave that out with a cube. The cube can be bigger only it can't be bigger that your work here. Size of the cube is not critical here. Because the way it's grouped it will only cut out of the bigger terrain. Make sence now?


macmullin ( ) posted Mon, 28 October 2002 at 5:32 PM

Yes it worked! Thank you guys very much, I would have never know you could punch a hole in the ground plain like any other obj. That's what I like about this place you can always ask for help even to the dumbest question and get sincere and helpful response. I have just one more small request. What are the best dimensions for images when you are creating ground textures? Is 512 X 512 pix the standard or larger?


MightyPete ( ) posted Mon, 28 October 2002 at 5:43 PM

Bigger is better. It depend on what your trying to cover though. If you trying to cover a entire valley I'd make them really big 1024 X 1024 or even bigger. What ever the size of the terrain is the size you should make the texture. When your in the terrain editor look at the size your going to creat it at. 1 to 1 is best. Big stuff big textures small stuff small textures. You don't want the dreaded pixels showing up cause the texture is too small. Don't make terrains bigger than nessessary cause they can become poly pigs.


macmullin ( ) posted Mon, 28 October 2002 at 5:50 PM

Ok so you can wrap your ground plain with one lage texture that great. I figured it would tile by defaut. Thank you agin Pete Guitta and Eric - you guys have been very helpful :-)


MightyPete ( ) posted Mon, 28 October 2002 at 6:19 PM

It can be tiled too but then it has to be seamless. Actually it will tile if it's too small. What you always want is the texture is too big for the object and not the other way around cause when it gets resized the pixels will become visible in the render. One more thing. Click on your little mound there then right click on it and pick edit terrain. In the terrain editor slid the clip up ever so slightly till your mound is roundish instead of square. It will make it a million times easier to blend in then. Your eye is drawen to strait lines but not curved lines so much.


nggalai ( ) posted Tue, 29 October 2002 at 2:01 AM

Hi macmullin, > Ok so you can wrap your ground plain with one lage texture > that great. I figured it would tile by defaut. Depends--if you use a procedural texture (i.e. a "shader"), tiling is not an issue. if you use a image texture (i.e. a "map"), you might have to play around with either Vue's texture mapping settings, or adapt the texture slightly in Photoshop to make it tileable with less noticeable, well, tiling. ;) Love the pic, btw. I'm looking forward to the final render. ta, -Sascha.rb


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