C4D Tutorial: Cinema 4d Mograph Effectors Correct Rendering Method

IntroductionIn this article, the best CPU & GPU render farm and cloud rendering services provider, Fox Renderfarm, will tell you what are topology and retopology of 3D models and how to retopologize a model in C4D. When using 3D software for modeling, everyone has their methods and processes, and the construction of the same model will vary from person to person. But what makes a good model? If a model is poorly structured, how to optimize it? These problems involve the topology and retopology of the model. With these questions, let's take a look at what problems we need to pay attention to in the modeling process.!What Are Topology And Retopology Of 3D Models-1 What are topology and retopology?Traditional topology is a subject related to mathematical geometry, but we discuss the topology concepts related to 3D modeling here. Now let's understand the topology, and then the retopology.•TopologyWe know that a model is represented in 3D software by a series of surfaces combined at different angles. In my opinion, the topology of 3D modeling is the structural distribution of the surfaces of a model, which is wiring. There are so many ways to combine surfaces when trying to represent and make a 3D model. For example, look at the cube below, although the distribution of surfaces is inconsistent, the appearance looks exactly the same.!What Are Topology And Retopology Of 3D Models-2Each model has its own topology. Some are industrial models exported by industrial design software, such as ProE and SolidWorks; some are made by scanning or other reverse engineering; some are the common model format, such as *.obj, *.fbx, etc. that are exported by different 3D software. Here comes a problem: even if it is the same model, the topology generated in different ways can sometimes give us troubles in the subsequent animation and reprocessing.•RetopologyOnce you understand topology, retopology is straightforward. It is about reconstructing and representing the same model, using a better topology-a more appropriate distribution of surfaces.!What Are Topology And Retopology Of 3D Models-3When retopologizing a model, it will pay more attention to using an appropriate number and size of surfaces to represent a model. And if you need to make point level animations (character’s body animation, cloth, etc.), you should pay more attention to building out some ring and loop structures, so that you can deal with the unsatisfactory animations (such as model collision, overstretching, etc.) produced after extrusion and stretching the surfaces.!What Are Topology And Retopology Of 3D Models-4 What is a good topology?First of all, making a good model should try to avoid triangular surfaces and n-gon surfaces connected by more than 5 edges, and try not to make poles with more than 5 edges in important positions. Otherwise, crossed surfaces or unsmooth effects may appear in these places when making subsequent point level animations. For example, for models designed by industrial software, there are a lot of triangular surfaces after the format is converted, and it will be troublesome to create chamfering effects or add subdivisions for these edges.!What Are Topology And Retopology Of 3D Models-5Secondly, a good model should have a good edge flow, which is not only convenient for selection, but also offers a good tension during subsequent animation production.!What Are Topology And Retopology Of 3D Models-6Some positions that need to be animated, such as eyes and mouth, should be modeled with appropriate structures and enough surfaces to support the animation details.!What Are Topology And Retopology Of 3D Models-7!What Are Topology And Retopology Of 3D Models-8 What are the benefits of retopology?•A good topology can make the animation betterModels with reasonable structures will show better modeling when it is squeezed and deformed. As three cubes with different topologies that are shown below, some surfaces of them will be torn after they are twisted to a certain degree.!What Are Topology And Retopology Of 3D Models-9•Models with good topology will be reworked more efficientlyFor these models, when we want to add chamfers or add some details to them, we can quickly modify a specific part of the surface. However, for models with unsatisfied wiring, we can only add details by increasing the distribution of modification lines again, which will be inefficient for some complex structures.!What Are Topology And Retopology Of 3D Models-10•Retopology allows for faster mappingFor the production of some mapping, the stretching of UV is needed. If the density of different areas of the model is so different, or if there are both triangular surfaces and N-gons, it will make our work very tedious. So after retopology, the model can make the production and performance of material mapping become more effective.!What Are Topology And Retopology Of 3D Models-11 What are the ways of retopology in C4D?There are not many ways to retopology in C4D, but we usually use other software's retopology function to improve the modeling. I will introduce 3 methods of retopology as follow.•Remake some parts of the modelFor some parts with simple structures, it can be made directly through geometry, and then connecting these parts to the model.!What Are Topology And Retopology Of 3D Models-12For some surfaces, shrink wrap and polypaint can be used to retopologize parts of the structure. For example, use shrink wrap to fit some evenly distributed surfaces to the model, and then optimize and merge the structure.!What Are Topology And Retopology Of 3D Models-13•Using volume objectsIn the version after R20, using volume objects can directly generate a model with relatively uniform wiring, but there is not much room for manipulation, and sometimes the edges are not ideal. And if you want more details, you have to produce a lot of surface models.!What Are Topology And Retopology Of 3D Models-14•Using QuadRemesherIn addition to the two methods above, we can also use the QuadRemesher plugin for retopology. For this plug-in, the developer has only released and tested the version applied to Maya and 3ds Max before. Recently, the C4D version has finally come out. I can say that C4D did not have an easy-to-use retopology plug-in before, so the release of QuadRemesher allows us to save more time. Its use is also very simple. Only need to adjust the number of generated surfaces, size and density, you can directly get an ideal model.!What Are Topology And Retopology Of 3D Models-15 ConclusionRetopology can help us get a more satisfied model, but how to build and process a model depends on our production needs. Here is a good guide article for you to know more: 3D Modeling Tutorial: Handheld Fan. If you want to create your work using the shape of the model only, then you can just create the shape that meets the needs. If you want to make mapping, animations and others for the model, then you should add lines appropriately according to the requirements of the animation. The model structure can improve the efficiency for the later stage.After the model is built, if you are not too pleased with the effect of C4D rendering, you can look for a cloud rendering farm like Fox Renderfarm to help you render. Hope this article helps you!

In scientific research drawings, three-dimensional model diagrams can show more information than two-dimensional plane pictures, especially when designing and preparing nanostructures, three-dimensional model diagrams can intuitively show the design ideas and synthesis paths of materials. For example, in this paper (Ref. Joule 2018; 2: 725-735.), published in Joule magazine, a high-level, high-value, and incisive paper that showcases nano aesthetics, a three-dimensional model is used to intuitively express the synthesis path of the material. Harmonious color scheme and rich details: One of the ingenious features of this group of three-dimensional model diagrams is that irregularly stacked small balls are used to represent the SnO2 layer, which means that SnO2 is stacked by granular nanocrystals.In this article, Fox Renderfarm, the best could rendering services provider and C4D render farm, will share with you a Cinema 4D tutorial about how to make a core-shell structure. This tutorial is written by 3d Artist Yuan Liu. Now let’s introduce a modeling method for stacking model of small balls of any shape in C4D software.The specific modeling path is: modeling the shape of the target polygon→clone ball to fill the target polygon→dynamic collision to make it regular arrangement. (If you need the effect of partial fusion between the small balls, add a step of volume generation)The specific completion effect is shown in the figure below!How to Make a Core-shell Structure in Cinema 4DOpen C4D, here is the R20 version as an example1. First, perform polygonal modeling to make the geometric shape of the target shape.Here is an example of a notched spherical shell1.1 First create a sphere in the geometry menu bar (default Radius 100), select the sphere, click to convert to editable polygon (or keyboard C key).!How to Make a Core-shell Structure in Cinema 4D1.2 Select the frame selection mode in the selection tool, select the surface mode on the left, and select only visible elements on the hook in the frame selection setting.!How to Make a Core-shell Structure in Cinema 4D1.3 Press F3 to enter the right view, select a quarter of the sphere, and delete with the DELETE key!How to Make a Core-shell Structure in Cinema 4D1.4 Press F1 to return to the three views and create a Cloth Surface!How to Make a Core-shell Structure in Cinema 4D1.5 Drag the sphere with part of the surface deleted into the Cloth Surface, and set the Thickness of the Cloth Surface to 20cm.!How to Make a Core-shell Structure in Cinema 4D1.6 Middle mouse click on Cloth Surface, you can select Cloth Surface and sphere at the same time, right click and select "Connect Object+Delete", turn the second dot behind to red, cancel the polygon rendering, and check X-ray in the basic properties .!How to Make a Core-shell Structure in Cinema 4D!How to Make a Core-shell Structure in Cinema 4D2. Then use the clone tool to collide with the rigid body to realize the uniform filling of the small ball in the target shape.2.1 Create a new sphere with a radius of 3.5 and a segment of 12 types of icosahedrons (can be adjusted by yourself, the more segments, the easier it is to freeze); create a clone generator in the generator column, and drag the new sphere into a subset of the clone .!How to Make a Core-shell Structure in Cinema 4D2.2 Set Cloner mode as the object, drag the cloth surface into Cloner's object frame, change the distribution method to volume, and set the number to 5000~10000 (depending on the size of the model).!How to Make a Core-shell Structure in Cinema 4D2.3 Select Cloner and create a rigid body label (label→simulation label→rigid body); label collision setting: apply label to the child, select the top layer for independent elements; in the force attribute, set the follow displacement to 6 (can be adjusted by yourself).!How to Make a Core-shell Structure in Cinema 4D!How to Make a Core-shell Structure in Cinema 4DCtrl+D to enter the project settings, in the general dynamics settings, change Gravity to 0.2.6 Click the play button to play the ball movement animation. After playing to 10 frames, the ball basically moves to a position corresponding to the shape of the grid.!How to Make a Core-shell Structure in Cinema 4D2.7 Create a new sphere as a shadow effect. Keep the sphere position and properties as default; double-click the blank position in the material area to create a new material. Here, create two new materials and drag the materials to the corresponding objects (sphere and clone).Double-click the material ball to open the material editor. The material settings are as shown in the figure: For the shadow material, only the transparent channel is checked, and the channel color can adjust the shadow depth; for the ball material, check the color and reflection channel, and add a diffuse layer to the reflection layer, diffuse Add a Fresnel texture to the layer color. Adjust the color and position of the color mark in the Fresnel texture settings to change the color of the ball.!How to Make a Core-shell Structure in Cinema 4D!How to Make a Core-shell Structure in Cinema 4D2.8 Long-press the left mouse button on the ground option, select the sky in the pop-up menu to add a sky background to the environment, search for HDRI in the content browser on the right, you can find the HDRI shader preset by the software, here you can choose a suitable one, double-click to add it to Material window, and drag the HDRI shader to the sky just created.!How to Make a Core-shell Structure in Cinema 4D2.9 Select the sky and select the rotation tool to rotate the angle of the sky to find a suitable light angle; after adjusting the angle, add a composite label to the sky, and uncheck the camera visibility in the label settings, so that you can only render during rendering Lighting does not render the sky.!How to Make a Core-shell Structure in Cinema 4D2.10 The following is the rendering settings, as shown in the figure, click to open the rendering settings window, check the Alpha channel in the save column, and set the format to PNG, so that a picture with a transparent background can be rendered; after finding the angle, click to render to the picture Viewer, wait for the rendering to complete and click Save. (To save the transparent background picture PNG+Alpha)!How to Make a Core-shell Structure in Cinema 4D3. The following is the partial fusion between spheres through volume generation.3.1 Change the sphere type of the cloned subset to tetrahedron, and set the number of segments to 3 (minimum value); create volume generation and volume grids in the generator column, drag the cloned object into the volume generated subset, volume Generated as a subset of the volume grid.!How to Make a Core-shell Structure in Cinema 4D3.2 In the volume generation settings, click Clone to check Use grid points, change the mesh radius to 3 cm, and the voxel size to 1 cm; drag the material of the cloned object to the volume mesh; change the radius of the shadow sphere to 90~95 cm to prevent overlapping of the shadow sphere and the stacked sphere. Finally, render it to the image viewer and save it.!How to Make a Core-shell Structure in Cinema 4D4. If you want to add a layer of spherical shell to the outside, you only need to create a cut spherical shell according to the method in the first step, adjust it to a suitable size, add a subdivision surface, and give it a material. The color of the material can be adjusted by yourself. !How to Make a Core-shell Structure in Cinema 4DThis kind of ball clone filling and rigid body collision method is used to make the stacking effect of the balls. It is suitable for any closed polygon model, but it is necessary to coordinate the relationship between the number and size of the balls and the size of the target polygon. The number of balls is too small. Too much is easy to cause lag. In addition, you can reduce the number of subdivisions of the ball as much as possible without affecting the rendering effect, so as to improve the calculation speed.

The best cloud rendering services provider and C4D render farm, Fox Renderfarm, will share with you a C4D tutorial from 3d artist Flynn. This tutorial uses the C4D R20 version, if using the previous version, you need to adjust some relevant parameters. The tutorial involves a lot of techniques, you can understand and deepen the use of various commands through the case. IdeaThe idea of production will be more important than the learning of operation, so we will talk about the overall thinking process first. Firstly, the first idea was tested. I created a Cube, a Taper effect, and added a Step effect in Falloff. Then use the Cloner to scale to make a rotated column, and then perform a circular radial clone on this basis. AT last, I got a circle, but the circle was not perfect, especially the joint was incomplete, so the method was abandoned.!C4D Tutorial How to Animate a Square CollapseThe second idea is to directly use a disk to operate the surface on the disk, and this method constructs a suitable figure, but the control of the figure is a problem, we can only operate the whole figure but can not operate on a single column, and each part of the axial direction is located in the center, and can not make the feeling of turning.!C4D Tutorial How to Animate a Square CollapseNow there is a problem, in order to better control the animation of the graphics, we need to use the cloned graphics, and directly cloned graphics can not become the desired shape, and directly make the shape can not be very good control, so we need to change the thinking, use cloning to create objects, and then use other methods to make the disk effect. So, using cloning, and then deforming the cloned object, we can achieve the desired effect. ProductionFirstly, to realize the animation control of a column of cells around, so we first make a cell clone object, and directly use the linear mode to create a column of element objects.!C4D Tutorial How to Animate a Square CollapseThen add a Plain to the cloned column element, and adjust the displacement scaling rotation attribute under Parameter. Also add a Field effect in Falloff, and adjust Field/Field to X-. Drag the Linear Field to see the animation effect.!C4D Tutorial How to Animate a Square CollapseIn order to rotate the elements more closely, we also need to adjust the axial position of the basic cube. Select Cube first, then adjust the pivot position in Spline/Axis Center.!C4D Tutorial How to Animate a Square CollapseAfter making the control effect of a unit, we clone it into multiple copies and stack it together evenly.!C4D Tutorial How to Animate a Square CollapseAdd a Spline Wrap and then add a Circle to constrain it to Spline Wrap/Object/Spline. And change Axis to +Z. A new Null is formed by the Spline created and the null made previously.!C4D Tutorial How to Animate a Square CollapseOne thing to note here is that the scope of influence will be changed according to the size of the object at the same level, which will cause the shape to change with the movement of the linear domain. Therefore, we need to check the range box of the deformer to maintain the shape of the shape. When the scope box is fixed and the number of clones is changed, the objects outside the scope box will not be affected by the deformer, and we need to re-fix the scope box.!C4D Tutorial How to Animate a Square CollapseThen we can adjust the size of the disk by changing the size of the disk, and then set the keyframe to the Linear Field. We can get an effect from the outside to the inside.!C4D Tutorial How to Animate a Square CollapseThen the most critical step is that we don't want the motion of each column to be synchronized. At this time, we can use the random effector to achieve this out-of-sync effect. We can use the random effector to make a random offset of the key frame of the motion of each random Linear Field to get the final effect.!C4D Tutorial How to Animate a Square CollapseThe above is all about how to animate a square collapse with C4D. We hope you can learn something from this article. If you need a rendering service, you can try us at Fox Renderfarm, we have been the leading cloud rendering services provider in the industry for many years. Don't understand why you need a render farm? Then why not find out what is a render farm? Fox Renderfarm continues to bring news of modelling with various 3D software, so feel free to follow us!