[TA frost wolf _may- "hundred people plan"] art 2.2 model basis

2.2.1 Basic modeling process

Modeling is divided into three stages ：

1. Model phase
2. Mapping stage
3. Render output link

2.2.2 The basic process of modeling in the next era

Compared with the traditional hand drawing process, some normal maps are added .

• Medium model ： Determine the proportion of the original painting , By building box Compare the way with the original words , Pay attention to the head , shoulder , The shape of crotch and other positions ; Confirm the size proportion of equipment , Use silhouette to make auxiliary judgment ; It is recommended to use uniform quadrilateral for wiring , Try to avoid using triangles for wiring ;
• High modulus ： Further refine the model , Take into account the scale and detail size of the middle mold , Revise the original painting according to the situation of the middle model , Prevent structural errors , In general use ZB To operate . There are certain restrictions on the number of faces , A sub tool cannot exceed 200w Noodles , If the accuracy of the model must exceed 200w Noodles , Then we should use topology to optimize ;
• Topology ： Tens of millions of faces can't work properly in the game ; You can use ZBrush and maya Topology
• Low model ： Ensure the uniformity of wiring and try to match the high mode , Fine tune in the details , For example, elbow joint , Knee joint and other positions ; In order to make the low mold baking match the effect of high mold as much as possible , Matching is a very important part ;
• Demolition UV： Try to tile uv And try to improve uv Utilization ratio ; Straighten ？
• Baking map ： Bake in eight monkeys , Or in SP Medium baked ; It is recommended to use eight monkeys
• Make a map ： stay SP In the middle of , There are some ready-made maps that can be used .SP The more important part of is the mask part , Because it operates through masks , Control mixing , Generally, the black-and-white mask is adjusted to control ; By adjusting different parameters of the generator , Achieve good results ; The material of production should conform to PBR standard ,SP Bring it with you PBR Check the filter , Check with it , Suggest 95% The above meets the requirements ;
• Rendering the output ： Simple objects can be used directly SP Finish in ;

2.2.3 Schematic diagram of the basic process of modeling in the next era

Different kinds of maps ：

1. Base color map , Represents the basic color of the object without light ;
2. ao Mapping = diffuse Mapping ;
3. Metallicity mapping , Used to distinguish metal and non-metal ;
4. Roughness map , Used to describe the degree of non-uniformity of surface diffuse reflection ;
5. glassness Mapping , Generally speaking, for roughness （roughness） Just reverse the map ;
6. Specular mapping , Define the reflectivity of the metal , Describe the properties of a surface when light strikes it ;

Use normal mapping to achieve a high modulus effect without using a large number of faces ;

2.2.4 The process of role modeling

2.2.5 Simple hard surface modeling

In addition, rigorous hard surface modeling will have special requirements , Generally, it is not allowed to use Zbrush lazy ;

2.2.6 Lighting test environment

Lookdev

Usually use one HDR Mapping , Metal ball ,diffuse The ball , Light test with two color cards ;

• diffuse The ball is used to confirm the direction and color of the light ;
• Metal balls are generally used to confirm the light position ;
• A color card 079 a sheet SRGB, Convenient for later color matching ;
• HDR Maps are used to detect ambient light , When assets enter the same lighting environment, there will be no major color changes ;