Join Ryan Kittleson for an in-depth discussion in this video Examining a textured model, part of 3D Printing on Shapeways Using Maya.
Out of all the materials available on Shapeways, only one of them allows you to print in full colour. The full color sandstone material is great, because it's relatively inexpensive and the color quality is pretty good. However along with the power to print great colour comes great complexity. The process that you have to go through to get it to work can be cumbersome. Luckily, I have blazed the trail and I can show you where all the pitfalls are. If you follow the directions everything should work out.
Let's get into it. Now if you're using the exercise files provided with this course, you'll need to take and extra step here. The textures that are on the models are separate files that mile loads in and apply's to the model. In order for Maya to find the textures on your computer you need to set a project. So let's go to file, set project, and make sure it's set to your exercise files folder and click set. Great, now you can open up the exercise files for this chapter.
Before we start exporting models with textures, I want to take a look at the type of model and textures that you should have to work with. If you're making your own textured models, there's lots of courses in the lynda.com library that can help you with this. You'll need to lay out a UV map for the model and then paint it. For example, you could use Mudbox, Z-Brush, Sculptress or Photoshop to paint a texture map directly onto the 3D model. In the end, you'll need to have your texture applied to the model in Maya. The texture should be in a jpeg or .png format, and should not be any larger than 2,048 pixels square.
Also, one thing to watch out for. Some programs save jpeg files with a four-letter extension .jpeg. This can cause problems with Shapeways, so make sure that you rename the file extension to .jpeg instead. Also notice that while we have the model here, I didn't bother to hollow him out. Because he's already thin and wiry as it is, and there is not that much materials that could be removed from the inside. The full colour sandstone material is more fragile than the strong flexible materials, so it needs to be thicker.
Every part of him is at least two millimetres thick. Something else that I want to show here is that the entire mile should be one object. So let's click on this. You can see that right now there's separate objects and if I just zoom here on the base you can see that I have his feet very slightly intersecting the base and that's fine, that's exactly what we want. And because they're intersecting. They're going to print as one solid piece. But, what I need to do before I can print it is to combine them all into one object.
So, I'm going to select everything. And go to Mesh > Combine. Finally, you just want to make sure that you got your files organized. Make sure that your Maya file and the texture file. Are in the same folder when you go to export them. Here in our exercise files you can see that we've got our model and our texture here in the same folder. If your texture is in a different folder, then when we export this for Shapeways, different programs might not know exactly where to find the texture.
Since this course is about prepping existing models for 3D printing I'm not going to go into how to make this model and its texture map. There are many other courses that you can watch for that. Hopefully from this video you've learned how an existing model should be prepared to get it ready for exporting to Shapeways for full colour printing.
- What is Shapeways?
- Setting up Maya for 3D printing
- Checking model scale
- Understanding why thickness matters
- Adding precise thickness
- Strengthening thin structures
- Fixing common mesh problems
- Exporting models with texture maps
- Making a wireframe model
- Publishing to Shapeways