Rigging Mode Guide

rigging mode guide the rigging mode in umodeler x is a mode where you can add, edit, and skin bones for animation in this mode, you can assign weights to vertices and implement the model's movement through weight editing what is rigging? rigging is the process of creating a skeleton (bones) for a 3d model and setting how the model deforms according to the movement of the skeleton in this process, the concept of weights is used, which determines how much of the bone's movement is reflected and applied to the vertices in a nutshell, rigging is the process of creating a skeleton that enables animation for a 3d model and connecting the vertices to move together based on weight values when the skeleton moves info weights in rigging mode, "weight" refers to the influence value, and it determines how much a bone's movement is reflected in the vertices rigging mode weight from left, weight values are 0 0, 0 5, 1 0 the range of the value is from 0 0 to 1 0 , where 0 0 means the bone's movement has no influence on the vertex, and 1 0 means the bone's movement fully influences the vertex through this, the movement of the 3d model can be controlled why is rigging necessary? without rigging, a 3d model exists only in a static, unmoving state, similar to a motionless statue through rigging, characters or objects that need to move can be made flexible, allowing for the creation of animations info static mesh and skinned mesh when creating and using 3d models in unity, two types of meshes are used static meshes a static mesh is an object that does not transform and does not apply animation it is primarily used for objects that do not move, such as backgrounds, buildings, and furniture while static meshes are 'typically' used, if transformations are needed within objects like furniture and buildings, they are made as skinned meshes skinned meshes a skinned mesh is a 3d model that can be animated through the rigging process it is used for moving objects like characters and animals skinned meshes are connected so that vertices move using bones and weight values, allowing for the representation of animation tip how to check static mesh and skinned mesh in unity 1 select your 3d model 2 when selected, the inspector window displays the model's information if you have a mesh filter component and a mesh renderer component static mesh if you have a skinned mesh renderer component skinned mesh you can distinguish and check static mesh and skinned mesh in unity using these methods step by step rigging process prepare a umodeler x object that has completed modeling and uv unwrapping enter rigging mode create bones skinning them using the weight related tools move or animate the bones to see the results below are explanations for each step 1\ prepare a umodeler x object that has completed modeling and uv unwrapping modeling and uv unwrapping are essential steps that must be completed before proceeding with rigging work modeling is the process of creating the shape of a 3d model, and uv unwrapping is the process needed to correctly map textures to the surface of a 3d model only models that have completed these two processes can undergo rigging work please check the following document for information on modeling mode and the uv editor modeling mode docid\ apfg kl3ap6 enpcb4r4j uv editor docid\ oz92uqecztna1avshx6r9 2\ enter rigging mode once modeling and uv unwrapping are finished, you can enter rigging mode rigging mode provides a variety of tools necessary for rig creation, weight editing, and other rigging tasks the first step is to set the root bone , which designates the top level bone structure of the model tip for example, in the provided flower model the pivot is placed at the bottom center of the model the position is set to (0, 0, 0) after confirming these settings, click the start rigging button to begin 3\ create bones bones act as the skeleton that controls the movement of a 3d model in the process of creating bones, it is necessary to set the position of the bones and the connection structure between them umodeler x provides the build bones tool to facilitate this process easily using this tool, you can quickly construct the desired connection structure of the bones build bones tool docid\ hp7wvcw0dfngsczhut5rp additionally, it offers the edit bones tool , which allows for modifications such as editing or adding to already created bones edit bones tool docid\ uyy0jyyjuwxrku5vsrhgg tip for example, checking the bone creation process using edit bones select bone edit bones press add to create a new bone and move it upward along the y axis by repeatedly creating bones with add bone , you can build a structure like the example shown below you can also select bones created with shift and change their names in the bonename field, change the name of the created bone and press the rename button to update the bone's name in the umodeler ui settings located at the top of the scene view , you can easily change the rigging bone color and vertex size 4\ proceed with skinning skinning is the process of linking bones to vertices during this process, weights are assigned to each vertex to determine how much a bone's movement will affect that vertex the weight editing tool can be used to perform this process the tools available for editing weights are as follows weight tool docid\ akz245ge7xgvl0fz vk b weight brush tool docid\ f1t p tlcmkv3wzjuw3o tools that allow for the automatic or quick and convenient assignment of weights are as follows weight transfer tool docid\ fmc qtwdoawukxtot c2w auto weight tool docid\ nmmcxrqbt63jnyci 4k8c envelope tool docid\ lme 4jlhhdvq457tiuhs1 tip for example, checking the skinning process using edit bones checking the skinning process using edit bones appying auto weight after roughly positioning the bones with the add bone function, execute auto weight > apply auto weight alternatively, in weight mode or weight brush mode , you can directly grab the bones with the shift key and manually adjust them as needed checking and adjusting weights after applying auto weight, grab the bones and rotate them in various directions to check the results when rotating the bone corresponding to the base of the stem, there may be cases where petals, which should remain fixed, move along together in this case, select the petal, input a weight value directly between 0 and 1, and execute apply weight by doing so, the petals can be properly fixed detailed adjustment when you select the bone corresponding to the flower's head with shift and rotate it, you may notice areas that were incorrectly influenced after applying auto weight in this example, the outer green leaves, which should not be influenced when rotating the head, move together on the other hand, the petals around the head, which should follow the head's movement, do not move as expected this shows an example of incorrectly generated weight values for parts that should not be influenced, double click them to select in isolate mode , then with the entire selection active, set the value to 0 and apply apply weight for parts that should be influenced, adjust them in the same way by setting the value to 1 final check rotate the bones at extreme angles and confirm that the mesh does not collapse or break if necessary, use weight brush mode to smooth out the surrounding values and create more natural skin deformation 5\ checking the results the final step in the rigging process is to move the bones or apply animation to check the results at this stage, you can verify whether the rigging work has been performed correctly and whether the desired movements have been implemented successfully if the desired results are not achieved, you can modify the structure of the bones or the weights to obtain the desired outcome