Wednesday, November 4, 2009

Research Video

Differences in importing sketchup and 3D Max model with texture patterns through Crysis

http://www.youtube.com/watch?v=TVccNu9mOGU


The video shown the importing method, from sketchup and 3D Max into Crysis.
The advantages in using sketchup are:
It is quick tool in creating a 3D visual model. By using technical such like textured by plane, point to point drawing. Viewer can grab the model's meaning straight away. However, there are two major disadvantages in applying the texture through sketchup. Firstly, once it converted into Crysis, the scale of texture might not be able to re-adjust, this can affect the overall realism.
Secondly, by applying texture (especially using a significant various textures) the model might not be able to covert into cgf. The reason is because texture can only apply to plane. Once the texture applied to the model, the system might not be able recognize the model since it spilt into parts.

The advantages in using 3D Max is the use of texture. It allows apply different textures into one model, according to the faces. It is able to re-size the texture, boosting a realism of the model. Moreover, 3d Max can solve a problem in importing sketchup into Crysis. Since Crysis has difficulty in recognizing complicated sketchup models. There will be some faces that cannot be successfully coverted. 3D Max might be able to covert these faces by flip them back to normal.
However, this doesn't guarantee the model can be 100% import into Crysis.
The disadvantage of 3D Max might be time consuming, since it has a complicate working system, users need some times to get used to it.

In module 2, I tried to insert three different textures into the model, however, it doesn't come up in crysis. Since the blackfaces double faces exist, the real time system couldn't recognize the model. Therefore, only one texture can be found in my model. Fortunately, my original thought is to keep the model as simple as possible to bring up the lighting installation, therefore one texture is good enough in this case.

I found a website that has listed all the issues in exporting sketchup into Real time.
Such like texture, black faces (the holes in my model) etc...
They have raised the solution to overcome these problems.
Therefore, there is no certain way to covert sketchup model into real time. However, it is mentioned that all faces in sketchup have back-faces, which they never visible. Therefore, using creating a model like town hall station and import into Crysis is a big challenge, since it is a fairly detail model, and the probability to covert successfully is fairly low. This is the reason why soildwork is commended for module two.
Fortunately, I have successfully import my model into Crysis, by my experiences in module one.

website - http://www.3drad.com/sketchup-exporting-guidelines.htm

No comments:

Post a Comment