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oxygen_77
11-13-2002, 01:29 PM
Hey, I am working on a house design and when I'm done I would like to render an animation of the house where it seems the walls of the house un-dissolve up from the ground to the roof and then the textures un-dissolve in a similar fashion. I already know how to un-dissolve an object, but this is a uniform un-dissolve (it happens to the entire object all at once). How would I control the effect to have it start at the bottom and end at the top? Also how could I get the Textures to do the same thing? Thanks!
Ayreon
11-13-2002, 01:54 PM
you could use a black and white image on the transparancy channel and animate it over time. Start with the white part covering the object. now it is visible. Then move the image up, so the black part covers the object. Now it will be transparant.

I've attached a scenefile with an example of this method. Let me know if this is what you wanted.
Good luck

Ayreon
oxygen_77
11-13-2002, 02:39 PM
I think I understand what you're saying, but when I tried out your scenefile I got a box with no dissolve whatsoever. I tried changing frames to see if it eventually would dissolve, but it didn't seem to work... Oh well, thanks for the advice!
Ayreon
11-13-2002, 03:27 PM
Something went wrong with the object file. Here's a new file, this one will work, I promise :D . The movement of the texture is controled by the null object.


Ayreon
oxygen_77
11-13-2002, 03:42 PM
I used your idea and figured out a way to get it to work from what you told me... Thanks for all your help! It's exactly what I was looking for!
hunterlowe
11-13-2002, 03:43 PM
i think what he is saying will work but it doesn't work in the viewport just when you render it. in lightwave 5.5 it is that easy and there are 2 ways of doing the textures too. you can either do it in the texture window by associating the transparency to the texture and moving it over time- the same way you would do the other except in the alpha of the texture instead of the alpha in clip map. the other way to do it is to copy the model but with differnet textures and to use the alpha clip on it.
leigh
11-13-2002, 04:00 PM
I wouldn't actually recommend using transparency, because firstly that will take longer to render because transparent surfaces just do take longer, and secondly because transparency will not make the textures disappear, it will just make everything look like it's made out of glass.

Rather try using a clip map or animated alpha channels in your actual textures.
oxygen_77
11-13-2002, 04:02 PM
Thanks, I just realized how loooooooong it takes using the Transparancy and was going to ask if anyone had any other suggestions... Glad to see you're ahead of me
Thanks!
oxygen_77
11-13-2002, 06:57 PM
Ok, here's a quick test I did using a clip map to get the effect I desired. Thanks again for all the help!

the following avi is encoded using DivX 5.0
http://monsoonstudios.netfirms.com/Lightwave/Rotation2.avi
CourtJester
11-14-2002, 11:28 AM
If you use a clip map combined with motion blur, you can have a softer edge to the wipe (so your floors don't "pop" in). Don't forget you can use blur lengths longer than 100%. You can also slightly bank your null so the horizontal polys aren't faded in so evenly.
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