Like I said, I’m a noob…please forgive me for probably a stupid question…but…I’m trying to remove the bay doors on this shuttle model by deleting part of the roof. But, when I do the the floor and other things show up invisible (as seen below on the photo on the right) in Unity but not in Cheetah.
How can I fix this in Cheetah…or Unity?
Thanks!
Thats a “normals” issue. Your looking at the back of the normal on the bottom of the ship, and unity is only rendering the front of normals. think of it as front visible, back invisible. You can find a shader that renders both sides, but the best practice solution is making your model have an “interior” (Normals point inwards inside the bay) as well as existing “exterior”
In cheetah in face mode, go
cmd+a
then rightclick and choose “Shell”
then click and drag on the screen, back and forth, thats a quick way to create the required geometry.
If you dont follow just say and Ill send you a file
AC
Sorry, I don’t follow. I don’t even know how to go into “face” mode.
Ok, I think what you mean by face mode is the default mode Cheetah starts in?
I went into the default mode and did what you said…
When I started moving my mouse around back and forth the model turns all kinds of shapes. How do I know what is the right geometry for what I’m wanting to do?
What shell does is creates the a solid shape from a single facing surface. Dragging back and forth defines how far away from the origional faces the new faces are- refer to cheetah help for more.
In fact make sure you run through a few of the cheetah help tutorials and even some stuff on the Cheetah forum. Whilst I havent been over there for a few days the support there is awesome.
You need more geometry to make the cargo bay render, you need faces looking “inward” on the model. You can use shell for an oftem messy 1 click solution, you can “Split” faces, you can add faces, how you do it is not too relevant.
See attatch. In the case of shuttle 2, there are two objects. To make them one, parent Box1 onto Box, select Box, and go "Tools>Import children. then delete the child object, and you should be left with one two-sided box
HTH
AC
PS Ive also attatched a pic of “Face Mode”
125984–4713–$normalsexample_329.zip (19.6 KB)
Thanks for the great advice. One more thing. My polly count is way higher that it needs to be. Is there a way that I can select multiple triangles in face mode and group them and then have them merge into a single poly? Is that possible?
Thanks
If you browse the cheetah forum theres a scripting section. Theres great user developed scripts there, including a polygon reduction script. Its good to get used to installing these scripts as they enhance cheetah a lot.
Approach it with an R&D, trial and error philosphy if its new ground for you. Have a few messy muckaround files on the go. The cheetah DVD tutorials you can buy would be excellent for someone starting out. I made the mistake of trying to ship a game from scratch when I started out with unity. I got there, but I couldve had a lot more fun if I wasnt so nuts about making proper assets right from the start
Manually I’d use the weld tool, but it messes up the UV co-ordinates, so you have to lay those sections out again.
Pleased you’re on your way, its a learning curve, but the creativity is quite liberating once you develop methods for speeding things up. With cheetah it pays to figure out the quick way, because theres always a long way. Cheetah is limited compared to the monster apps like Maya but if you persevere theres pretty much always a way to do what must be done.
AC