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3D Tutorial: Next Generation Wasteland Building Production

2023-06-29

3D Tutorial | cloud rendering

As a leading cloud rendering service provider and render farm in the CG industry, Fox Renderfarm is here to share with you a production of a 3D stylised wasteland building from the author Xiaodenglong.

Final result:

Final result

I will provide a comprehensive breakdown of the design analysis, the next generation scene making process and the secondary conceptualisation.

1. Design analysis

Artistic style

Post-apocalyptic wasteland style: rebirth after destruction!

Backdrop

Neon tubes glow faintly in a desert environment in a low-tech, battle-damaged, rusty wasteland world.

In order to survive, people build shelters in a patchwork and random way, cleverly blending different objects together by fusing, twisting, fitting and mixing. As a result, the architecture of the wasteland buildings is crude, exaggerated in shape and relatively complex and mixed in design.

Design elements: mainly consisting of broken and repaired metal sheets, pipes, wire mesh and nails, etc., with airbrushing to show the will to live.

Setting: Lightly damaged, with most of the hard surface structure, suffering only slight breaks, and the core structure still intact.

This backdrop setting creates a special environment for wasteland buildings, blending elements of destruction and rebirth.

Status: Building in use.

Colour scheme principle: large areas of low-saturated colors are used against partial high-saturated colors to enrich color variation and a strong sense of color blocking, which is very striking.

Final result

References

References

Here is part of it. A comprehensive search for reference will give a better sense of guidance and goal when it comes to production. References are very important!

2. Analyzing & Planning

Splitting of the building

The basic divisions are: tiles, walls, borders and frames, pipes, strips of wood, props, cables, fabrics, etc.

Splitting of the building

Measurements: Units, Proportional, Accuracy

Mapping on the rough model:

It is important to increase the rate of map sharing so that a set of maps can be flexibly adapted to more buildings, therefore the key point to consider in the design of a map is 'usability'.

Rough modeling and mapping

As the original painting only has one angle, more thought needed to be put into the design of the other angles, which will be described in more detail later. It is particularly worth noting that in the design of tile and wall maps, avoid dividing them too evenly and consider the need for patchwork that applies to different sizes and widths.

Design the maps of rough models with a focus on efficiency and quick communication of information.

Quickly find your way through structure, colour, texture size, mapping accuracy, styling and more.

design of tile and wall maps

As there will be a lot of shared elements in the building, you will need to think about how to use limited resources to do the patchwork work and ensure that you get good results.

Rough model

Refinement

Rough model mapping is essential to avoid many problems in advance and to ensure a more efficient and smooth production process.

3. Mid-poly Model

Now we can concentrate our efforts on structural modeling. As the subsequent details of the model will be baked onto the plane, special attention should be paid at this stage to the correct representation of the hierarchical relationships.

partial display

The correct way to express the hierarchy is as follows:

Based on the representation of the real spatial relations of the objects, the first step is to deal with heights and undulations.

Hierarchy

The width of the slope is adjusted according to the change in height, for example, if the height is higher and the depth is greater, the slope can be adjusted to be wider as appropriate.

It is also important to note the variation of the thickness of the gaps (structural lines) between the structures, which affects the expression of the hierarchy. Thicker gaps emphasize the width of the distance between the different structures and further emphasize the hierarchy.

Hierarchy

Good hierarchical relationships help to convey the sense of volume and space of objects more effectively and to obtain a good visual reading order.

4. High-poly Model

Add lines to some completed mid-poly models, and add detailed sculpting to metal tiles, walls, and wood, making them more rich and natural.

Add detailed sculpting

Next, we will move on to the baking process, where we are using the standard PBR process.

5. Mapping

It was done in photoshop. Now we show the effect of the mapping drawn in photoshop.

Effect of the mapping drawn in photoshop

About the software

There is no good or bad software, I think it's important to combine the advantages of different software to improve efficiency.

In terms of color processing in the maps: the sense of color blocking is very important! Especially for stylised mapping.

It is not advisable to choose colors that are too highly saturated, but rather focus on the overall feel, cleanliness, sense of color blocking and brightness. Large areas are in gray tones and localized areas can be highlighted with highly saturated colors.

Other maps are handled in the same way.

6. Secondary Conception

During the production process, I put a lot of thought into the composition. It would have been substantially more efficient if I had found a directly available reference, however, I still incorporated some of my own ideas and insights into it.

Composition

At the beginning of the production phase, no windmill element was included.

It was later found that the overall composition became less complete with the removal of the windmill. In addition, the contour lines do not appear to be sufficiently varied.

Visual balance

During the design process, one of the designs on the back gave me a headache for a while - the iron frame with the tyres.

The previous design for this location seemed a little cramped and I later considered the relationship and balance between the architectural elements and used a patchwork of white metal walls and tyres. This not only adheres to the style of mixing and matching in wasteland architecture but also adds a touch of lightness to this area.

In this way the design does not look dull but maintains visual balance.

Visual balance

When dealing with the placement of architectural details, we have to take care that their heights are kept in balance, including the treatment of pipework. Also be aware of how to fill in the blank areas and guide the viewer's eye.

Color balance

Inside the bar, the colors of the tablecloths are not actually represented on the original paintings.

I chose the same green as the color of the tiles for the tablecloth.

Color balance

I marked the green blocks as orange, and you can see that the distribution of the color blocks is sparse and staggered.

Green can just echo the theme color, and vice versa, from the point of view of color distribution, may be a bit out of balance.

This is what we have to consider later in the color matching.

Processing of identical elements

For example, the design of wood panels is often a bit boring if you just use the same elements side by side.

Therefore, I added broken holes and wire to the wood panel. By doing so, not only will not destroy the original effect, but also add some detail changes and enrich the diversity of materials.

Processing of identical elements

Placement of props

During the design process, we can't ignore the placement of props.

For example: the placement of chairs at the dining table.

These seemingly insignificant details can actually reflect the state of use and traces of the bar, and can also smartly correspond to the background of the story.

Placement of props

These details not only add a sense of realism to the building, but also create an immersive experience.

Switching of visual guidance

Visual switching in architectural design is very important, especially during the day and night.

Switching of visual guidance

In this case there are two plaques that clearly distinguish the atmosphere of day and night. When dealing with the details and placement of lighting props, I especially considered the conversion of visual guide lines to enhance the experience and perception of the viewer.

Every good work requires a lot of thought. Although there are still some regrets in this work, I will summarize the experience and problems and enhance and improve it in the next work.

We hope the sharing of 3D wasteland building can bring some inspiration to you. In the last step of the rendering process in producing 3D work, if you need to meet the deadline and speed up the rendering to deliver your project in time, try the super fast cloud rendering service offered by Fox Renderfarm. We offer a $25 free trial and have 24/7 customer service for you!

Source: Thepoly

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How to Create the Entrance of 'For Honor'

The leading cloud rendering service provider and render farm in the CG industry, Fox Renderfarm, will show you in this post a scene inside "For Honor," the Entrance, created by a student who is learning 3D modeling. The creator completed this work over a period of four weeks by solving problems and challenges with the help of his/her teacher and his/her own efforts. This article is a summary of his/her experience in the creation of this scene.Final result:Analyzing Concept Art &x26; Building Rough ModelsThis is a case of the PBR workflow, specifically utilizing 3ds Max for low-poly modeling, ZBrush for high-poly sculpting, TopoGun for retopology, Substance Painter and Photoshop for texture, and ultimately rendering with Marmoset Toolbag 4.To ensure production progress, in the early stages, the scene was initially constructed in 3ds Max based on the concept art as a large-scale reference for proportions, and then the actual production process began.Rough modelMaking Mid-poly ModelsHouse Structure: serving as the foundation of the scene framework. The house was divided into several parts for construction, including the roof, walls, floor, door frames, steps, and two side stone platforms. Through analyzing the concept art, it was determined that the stone walls and roof tiles employ a repeating texture pattern, which was subsequently applied throughout the scene.The scene props included stone lion statues, lanterns, ropes of hanging tassels, and more. Among them, the stone statues, steps, and several wooden elements were sculpted using ZBrush.The process of creating the mid-poly model involved continuously refining and adding more intricate details based on the rough model. It was important to analyze which models require sculpting and retopology during the initial stages of production, and which models could be reduced in detail to serve as the low-poly model. Conducting this analysis early on significantly improved efficiency in the production process.Mid-poly modelMaking High-poly ModelsThe high-poly modeling stage was relatively intense, involving numerous wooden doors, plaques, walls, as well as stone steps and statues. However, the task became less laborious when it came to identical wooden boards in the scene, as they could be easily adjusted and reused.Statue sculpting:Since the only element in this scene that required complete sculpting was the stone lion, I decided to challenge and improve my sculpting skills by starting from a sphere. After several days of sculpting, I began to see some progress. Then, with guidance from my teacher, I delved deeper into proportions, structure, and finer details.Props sculpting:The wooden boards, during the sculpting process, were meticulously sculpted stroke by stroke to enhance the texture and bring out the grain. Additionally, props like stone steps were also carved.Afterward, the UV unwrapping and baking process followed.Making Low-poly ModelsIn the early stages, we conducted an analysis of the assets. Among them, only the stone lion required retopology, while the remaining props could be obtained through reducing the mesh of mid-poly models.Overall, retopologizing the low-poly model is a relatively simple but patient task. There are several points to consider during the process: 1. Controlling the polygon count of the model. 2. Planning the mesh topology in a logical manner and determining whether certain details need to be retopologized. 3. Evaluating the density of the mesh topology for proper distribution.During the low-poly retopology stage, we encountered few difficulties. We followed a standard of 1m³/512 pixels to create the textures and planned them accordingly based on the predetermined pixel density. Then, we proceeded with UV unwrapping and layout. Throughout this process, we encountered issues such as seams appearing and models turning black. Eventually, we identified the problems as certain areas of the model lacking smooth group separation in the UVs and flipped normals. When placing the UVs, it is important to fully utilize the UV space to avoid wasting resources. Additionally, we needed to redo some of the UV work later on. It should be noted that in 3ds Max, when using automatic smoothing groups, it may not be apparent if the normals are flipped. Therefore, it is advisable to double-check after completing each section.Next was the normal map baking. We matched the high-poly and low-poly models in 3ds Max and ensured that there was some distance between all the models to avoid overlapping during the baking process. If any issues arose with the baked normals, we would repair them in Photoshop. Fortunately, there were no major problems throughout the entire baking process, so minor adjustments in Photoshop were sufficient.Low-poly modelMaking MaterialsI initially conducted material rendering for the sculpture and showed it to my teacher. However, the teacher pointed out some shortcomings. With guidance from the teacher, I gained a new understanding of material rendering. The key is to focus on volume first and then details. Volume here does not solely refer to the presence of volume under lighting conditions, but also the perception of volume even in the absence of lighting, relying only on colors. The addition of darker shades and textures further enhances the sense of volume in the model. Finally, sharpening was performed to make the details more prominent. By following this approach, the materials created would appear three-dimensional under lighting effects.RenderingAfter completing meticulous file organization, I standardized the naming of models, material spheres, and textures. This significantly reduced the workload when using Marmoset Toolbag 4. Once all the preparations were done, I began placing the models, setting up the lighting, adding special effects, and finally positioning the camera for rendering. During this process, a considerable amount of time was spent on lighting. The coordination between model materials and lighting never seemed to achieve the desired effect. However, with guidance from my teacher, I was able to improve the overall result.The above is our experience sharing the production process of the Entrance for the game "For Honor".Source: Thepoly

2023-09-28

Learn How to Make a Handheld Fan in 3D

Today, Fox Renderfarm, the industry's leading cloud rendering service provider and render farm, will bring you a 3D tutorial that explains how to make a handheld fan. Let's get started right now.First import the image, use the straight line tool to draw the length of the handle, then use the rotational molding tool to create the handle and add a cover.Generate a rectangle using the center point, adjust it to the appropriate size, and then generate a circular runway. At this point, use the fitting tool to get the appropriate shape.Select the circular runway that was just generated, hold down Shift to extrude the faces on both sides and add a cover, then use the shell tool to shell both sides.Copy the inner edge line of the shell, extrude the face and add the cover, pull off the inner face to keep only the outer side, and then chamfer to generate the outer layer of the shell that needs to be hollowed out.Use curves to draw the edge shape of the connecting axis, then use rotational molding to generate the surface, and then add the cover to generate the solid.Connect the rectangle diagonal, use the diagonal to generate a round tube, and adjust the angle and thickness of the tube so that the angle and thickness of the tube match the reference picture.Draw a diagonal line again and use the Line Array tool to array along this line, where the number of arrays is 18.Use the object intersection line function to select the round tube and the shell to be hollowed out, determine whether the position matches by the object intersection line, adjust the position and then cut to get the hollowed out object.Use the Rectangle tool to generate a runway circle, adjust it to the right size, then cut and combine it with the hollow object and offset it inward to get the solid. The same can be done for the outer runway circle, here you need to make a copy of the hollow object for backup.Use the mirror tool to mirror the hollowed-out model made in the previous step to the back, then use the method in the fourth step to get an unhollowed-out shell, generate a rounded rectangle and cut it according to the second reference picture, then use the combination tool to combine, and finally offset the surface to get the solid.Use a rectangle to frame the size of the button, then use a straight line to connect the midpoint of the rectangle, next use the center point tool to generate a circle, and squeeze the circle to the right size and adjust the height of the button.Split the button and the handle for spare, and then chamfer the top of the handle for the next step.For the base, again using the rotational molding tool. First draw the edge shape using curves, then rotate the shape and cap it to create a solid.Now perform the Boolean split between the handle and the base, then detach the surface. Next, copy the edge line, move the inner circle downwards, use the double rail sweep to generate the surface and combine it to obtain the base shape.Use the center point circle and rectangle tools to generate the button and indicator light shapes on the handle, extrude the solid and then perform a boolean split with the handle to get the handle shape and the indicator light.Use the Rectangle to create the runway circle and rotate it 45° to get the "x" below, then use the Trim tool to trim off the excess lines and combine them. After extruding the surface, use the Boolean split tool to split it to get the "x" icon.Now create the circular texture on the button. First abstract the structure line to get a button-sized circle, then generate a circle solid at the circle node, and use the Array Along Curve tool to make an array. Arrange the five columns in sequence according to the image and mirror them to get the desired texture. Finally, we use Boolean split to get the button shape.Chamfer the intersection of the button and the handle, and chamfer the intersection of the handle and the base.Use the curve to draw the fan shape, then use the XN tool to generate the surface, and array along the center point. The number of arrays here is 5. Adjust the fan blade position and extrude the fan blade solid.Check the model and chamfer it to complete the model.The next step is to render the product. First, divide the product into four layers, one for the orange object, one for the flesh-colored object, one for the metal connection, and one for the self-illumination. Then start rendering.First adjust the model position by aligning the model to the ground in the Advanced Options.Set the model materials to the model in turn. Note that you need to turn down the metallic shine of the metal joints in order to get a frosted look.Adjust the self-luminous material on the handle to the right intensity in accordance with the light, and choose white as the color.Set the setting options in the image to Press Exposure, High Contrast, and Photography.Change the background color in the environment settings. Use the straw tool to absorb the image color, turn down the brightness of one light in the HDR editor, hit the light on the hollow surface, adjust the shape of the light to rectangle, and then hit a main light on the left side of the product to make a shadow appear on the right side.Adjust the object position in the camera, lock the camera, and finish the rendering.Source: YBW

2023-07-20

How to Use VFace and Make Effects in Arnold?

In this article, Fox Renderfarm, the CG industry's leading cloud rendering service provider and render farm, will share with you how to use VFace and how to restore effects in the Arnold renderer. The author is CaoJiajun.Firstly I purchased some VFace materials from the official website to get the following files.We will mainly use the above files for this sharing, they are our main materials to make high quality details of the face. VFace provides 2 types of facial models, one for the head with open eyes and one for the head with closed eyes, choose one of them according to your needs. If you are doing a model that needs to be animated with expressions in post, I would recommend choosing the model with closed eyes, as the open eyes model will cause the eyelids to stretch when you do the blink animation. You don't need to worry about this for still-frame work.Let's start with the production process. It's actually very simple, wrap your own model with a VFace model through Wrap or Zwrap, then pass the map and finally render it in Maya or other 3D software. The process is simple but there will be a lot of things that need to be taken care of in there otherwise the facial details will not be rendered correctly.1 Model CleaningFirst we need to load the model provided by VFace into ZBrush and match it to our sculpted model.Then you can head into Zwrap or Wrap for wrapping.Lastly, the wrapped model is imported into ZBrush to replace the VFace model.In ZBrush we use the Project brush to match the face of the wrapped model more precisely to our own sculpted model, once matched you will have a model that matches your sculpted model perfectly, at this point we can go into Mari for the map transfer.2 Using Mari to Transfer the MapIn Mari we first set up the project, import our own sculpted model or the wrapped and matched XYZ model, then remove the other channels in the Channels and keep only the Basecolor channel, and we can customize the channels as we wish.What we see now is how the model looks when imported into Mari. At this point we need to set the custom channels DIFF\DISP\UNITY\ to import the VFace map.Firstly, the DIFF channel is set at the original size of 16k and the Depth is set at 16bit (later on there can be more color depth control and of course it can be set to 8bit). The key point is that when the color depth is set to 16bit or 32bit, the color space needs to be set to linear and 8bit to srgb.Keep the size of displacement map at 16k. I recommend setting the Depth to 32bit, as you will get more detail of displacement, and keep the color space linear, with Scalar Data ticked (as the displacement map is a color map with 3 channels of RGB, you need to keep the greyscale data).The blend map settings are the same as the color map, but Scalar Data also needs to be ticked (this map is used as a color mask for toning or as a weighting mask).Next we can use the object panel to append our own model in preparation for the transfer of the map.Right-click on any channel and select the Transfer command in the pop-up menu to bring up the menu for transferring the map.In the transfer menu select the channel which needs to be transferred in the first step, set the transfer object in the second step, click on the arrow in the third step, set the size in the fourth step and finally click on the ok button.I generally recommend passing one channel at a time as it is very slow and takes a long time to wait. For size I usually choose 4k for color, 8k for displacement and 4k for mixing channels. This step requires a lot of patience!VFace original effectThe effect after transferAfter the transfer we can export the map. The export map settings are shown in the figure. We need to pay attention to the color space setting (in the red box). The color space of the color channel is set to linear and should also be set to linear when exporting. The export of displacement and hybrid maps is a bit more unusual, as we set the color space to linear when creating the channel, but the export needs to be set to srgb, as both the displacement and hybrid maps are a combination of the 3 channels R,G,B to form a color map. Finally click the export button and it's done.VFace original color effectColor effects after exportingVFace original displacementEffect after exportIn short, your output map needs to be the same color as the map provided by VFace, either too bright or too dark is an error.3 Arnold RenderingDefault settingsAt this point we can go to Maya and render the VFace map we have created (we won't go into the lighting environment and materials here, we will focus on the link to the replacement map). First we import the passed VFace map and render it by default to see what we get. Obviously we get an ugly result, so how to set it to get it right?Here we add an aisubtract node (which you can interpret as a subtraction or exclusion node), because the default median value of VFace is 0.5 and arnold prefers a replacement map with a median value of 0. So we enter the VFace color into input1 and change the color of input2 to a luminance value of 0.5. This is equivalent to subtracting the 0.5 luminance info from the default 0.5 median luminance of VFace, and we get a displacement with a median value of 0.Median value 0.5Median value 0After setting the median we can add an aimultply node. This node can be interpreted as a multiplyDivide node, which has the same function as Maya's own multiplyDivide node and controls the overall strength of the VFace displacement. We can output the color of the aisubract node to the input1 node of aimultply and adjust the overall strength of the detail displacement of VFace by using the black, grey and white of input2 (any value multiplied by 1 equals 1, any value multiplied by 0 equals 0, all the colors we can see in the computer are actually numbers to the computer. We can change the value and thus the strength of the map by simple mathematical calculations, once we know this we can see why we use the multiplyDivide node to control the strength of the displacement).Next we add an ailayerRgba node. The R, G and B channels of the aimultipy are connected to the R channels of input1, 2 and 3 of ailayerRgba, and through the mix attribute of this node we can control the intensity of the displacement of each of the three VFace channels (R, G and B), and after a series of settings we can get a correct and controlled rendering of the VFace displacement.VFace-dispZBrush-dispVFace+ZBrush dispZBrush Export Displacement SettingsAlthough we have a correct and controlled VFace displacement result, it does not combine with the displacement we sculpted in Zbrush and we need to find a way to combine the two to get our final displacement effect.Here I used the aiAdd node to add the two displacement maps together to get our VFace displacement + ZBrush displacement effect (of course you can also use Maya's plusMinus node).It doesn't matter how many displacement map elements you have (such as the scar on the face, etc.), you can structure them through the aiAdd node to get a composite displacement effect. The advantage of making it this way is that you can adjust the strength and weakness of each displacement channel at any time, without having to import and export them in different software. It is a very standard linear process approach.Default effectAfter color correctionFinally we apply the passed color to the subsurface color, and by default we get a very dark color mapping, which is not wrong. The VFace default model will be the same color. We can correct the skin color by using the hue, saturation and lightness of the colourCorrect node. This is why I choose 16bit colors to bake with, so I can get more control over the colors and get a correct result after color correction (of course the current result is just a rough mapping, we can still do deeper work on the map to get a better result).As a powerful render farm offering arnold cloud rendering services, Fox Renderfarm hopes this article can give you some help.Source: Thepoly

2023-07-19