Tag: maya

Common Maya Mishaps

Whether you’re a modeler, a lighter, a rigger, or an animator, the one software we all share is Maya. Maya is an incredibly powerful tool that can help you as an artist achieve amazing, incredible, and unimaginable things, but with great power comes great… troubleshooting. We’ve all been there: we open Maya and something unexpected occurs. Most of the time a quick Google search will lead you back in the right direction, but sometimes the problem is just so odd and confusing that you are at a complete loss as to what to do next. In this short lecture, AnimSchool Instructor Luis Labrador highlights just a few of the most common Maya mishaps he has seen students struggle with over his career. No matter your specialty or how far in your career you are, these tips could save you time and energy that you can now spend on making your next masterpiece.

Clipping Plane

When an object is extremely small and the user attempts to zoom in, the object may appear to cut open or clip through the perspective camera. The reverse can also happen when objects are extremely large. To remedy this, open the camera’s attributes and adjust the Near Clip Plane (default is 0.1) and the Far Clip Plane (default is 10000) by multiples of 10. In Luis’s example, he sets the Near Clip Plane to 0.001, which allows him to zoom in closer to the small object without the clipping occurring. When zooming out, you may need to increase both the Near Clip Plane to prevent shading artifacts, and increase the Far Clip Plane to prevent “losing” the object as it clips from behind.

Exporting/Importing as OBJ

Sometimes, you may find that something in your file has changed unexpectedly, resulting in various issues across your project. The best way to “bleach” and clean up your project, as recommended by Luis Labrador, is to export as an OBJ file and reimport it into a fresh Maya file. To do so, first ensure that OBJ exports are enabled in the Plug-in Manager by checking the “Loaded” and “Auto load” boxes. Then, the OBJ option should appear in the drop-down list of export file types. When exporting as OBJ, two file types will be exported: OBJ and MTL. The MTL file is a reference file that can typically be ignored.

OBJ files work well for “resetting” your project because, in 3D, it is the most basic file type, and only represents coordinates of points in space.

Maya ASCII vs Maya Binary File Types

When saving out a Maya file, you may come across two main file types: Maya ASCII (.ma) and Maya Binary (.mb). Maya ASCII files are generally “heavier,” containing data that allows the file to be opened in test editors that have the ability to change the version of Maya being used. Maya Binary files are much lighter and more efficient in comparison, as they store the data as 1s and 0s. Luis explains that neither are technically “better” to use – it’s up to personal preference.

Watch the full clip from an AnimSchool lecture here: 

At AnimSchool, we teach students who want to make 3D characters move and act. Our instructors are professionals at film and game animation studios like Dreamworks, Pixar, Sony Pictures, Blizzard & Disney. ⁠Get LIVE feedback on your Animation from the pros. Learn more at https://animschool.edu/

3D Head Modeling Topology & Techniques

Establishing good practices in 3D modeling is crucial to ensure that the model deforms correctly during animation, allowing for smooth and natural movements of characters or objects. Additionally, clean topology facilitates easier modification and editing of the model, enabling artists to iterate quickly and make adjustments as needed. It not only improves the visual quality of the model but also streamlines the entire production process, making it an essential aspect of professional 3D modeling.

AnimSchool instructor Jackie Marion shows how she gets started in creating new 3D character models and discusses the workflow of a production modeler.

Creating a Head: The Forms
When modeling a head, consider what different forms make up the overall shape of the head. Jackie advises against starting with a sphere – though it may be your initial instinct to start with a sphere, the grid-like topology and edge flow of a basic sphere primitive in Maya will work against the design of a face.

The head is typically much more than a sphere (though some stylized characters can have a very spherical head). Generally, the top of the head is egg-shaped, while the face and neck areas can be formed with cylinders.

Start Modeling
When patch modeling a head, Jackie explains that she starts with a plane (subdivisions width 2, height 1). This plane has an edge running down the center which will allow her to maintain symmetry across the X axis as she extrudes new faces and edges from the plane. She typically places the plane somewhere near the center of the face, such as along the bridge of the nose, and then starts to extrude new segments that follow the form and contour of the face.

Jackie recommends to find a good rhythm as you place new sections – don’t go so far apart that you lose the form, but also don’t go too close together that you end up with too many edges and too much detail. Once she has formed a basic frame that wraps around the form of the head, she uses Fill Hole to start closing the gaps. 

There are various alternative methods to closing these gaps, such as extruding the inner edges or using the Append tool, but Jackie mentions that she prefers to use Fill Hole so that she can add in the topology and edge flow afterwards with the Multi-Cut tool.

Jackie explains that the “rule” to follow here is to determine where the “corner” is, and build your edge flow from that. For instance, all edges on the left and in front of the corner might flow towards the back, while edges on the right and behind the corner might flow up and towards the left. Once you have established the rule for your own models, you can apply it to the other sections as well.

When building out the form of the face, remember that, even though you are only making the exterior “shell,” there is anatomy underneath that is informing the shapes you are building. This is what will help you achieve a realistic and believable look.

Watch the full snippet from an AnimSchool class lecture here:

At AnimSchool, we teach students who want to make 3D characters move and act. Our instructors are professionals at film and game animation studios like Dreamworks, Pixar, Sony Pictures, Blizzard & Disney. ⁠Get LIVE feedback on your Animation from the pros. 
Learn more at https://animschool.edu/