1, be familiar with the software and run a basic process.
It is necessary to learn a skill and do it by hand, but we also need to pay attention to methods. Don't do it if you don't know anything. This is actually a waste of time. So the first step should be to get familiar with the software quickly and know what it can be used for and what kind of visual effect it can achieve. You need to have a general understanding, and you can do it without asking much.
2. Basic modeling, starting with simple objects.
Learning 3D, modeling is definitely the first step. Start with simple objects and don't try to do difficult things, because complex modeling is often time-consuming, which will make it easier to stick to it. You can't be fat in one bite. I made such a mistake when I first started learning. I followed a very complicated tutorial. Although the result was made, it took too long to remember after learning.
What is a simple object? You can understand its three-dimensional structure through imagination and realize it through basic modeling tools, such as a table, a water cup and so on. You may only need to find a photo to make these models, so this model is relatively simple.
3, advanced modeling, familiar with wiring.
After learning modeling, you will actually find that wiring is the core of modeling. Modeling is actually the process of wiring, and the wiring structure of an excellent model is very regular and reasonable. When doing dynamic rendering of characters, the function of connection is more obvious. Basically, the wiring structure is wrong, and the model with high probability is useless. Another skill is that you must learn to disassemble complex models, try to disassemble them until you can do it yourself, and then assemble them.
4, basic lighting, understand the lighting principle.
If you can make a model, you need to learn to polish it. In fact, a simple understanding of lighting is that it is enough to have main light and auxiliary light. Under a single light source, it is actually understood that there is only one main light source, such as during the day. Simply put, only a ray of sunshine is enough. For multi-light sources, it can be divided into main light and auxiliary light according to categories. First hit the main light, choose the angle you want, and keep the gray level (gray level means from black to white).
Then use the auxiliary light. The function of the auxiliary lamp is to illuminate more details. For example, the common three-point lighting has two auxiliary lights, one to illuminate the dark part and the other to illuminate the edge. The purpose of this lighting is to make the object more three-dimensional and more detailed. There is a small skill in the process of lighting, that is, single light source lighting, only one light source at a time to see the effect, can improve the accuracy and efficiency of lighting.
5, the basic material, the default material is also good.
When you start learning materials, you can use the default materials. The default material ball can actually make many beautiful effects, and it doesn't have to be a mixed material like OC. Learning material, my current experience is to understand the material as using layer styles in PS. First of all, you need to know what kind of effect you want in the end, and then deduce which attributes you will use from the effect. If you can't find the attribute, look it up, don't fiddle around.
6, advanced materials, understand UV and advanced materials.
If you want to make a complex effect, such as a Game model, if the details are very demanding, you need to remove the UV from the model. UV is actually the coordinate system information of the model surface, which can be understood as the process of opening a box from three dimensions to two dimensions. And drawing is to draw the color information of different coordinate points in this coordinate system.
So UV and mapping are actually two different things. Many beginners like advanced materials, mainly for OC. There are mixed materials in the OC renderer, and you can easily customize the effect you want through nodes.
7. Rendering.
The last thing to say is rendering. In fact, we should pay attention to some rendering parameters. In addition, pay attention to the balance between rendering time and effect. Don't think that the higher the parameter, the better for the effect. Sometimes there may be only a little improvement, but it is not worth spending many times. Before the final rendering, the default rendering settings do not turn on global illumination and environmental absorption. The maximum sampling of OC renderer is set to 500, and it is enough to wait until the final rendering is 1500.