Creating a Bizarre Baby with ZBrush: A Step-by-Step Guide
- Concept the idea
(Image: © Oliver Schümann)
Every sculpture starts with an idea. This can be achieved by making a few scribbles, 3D models, kitbashing, or concept artwork. My piece is based on German folklore, so I did my research on the creature and created an initial concept.
- Blocking out the base shapes
(Image: © Oliver Schümann)
Get going with simple shapes like cylinders, spheres, and so on to create the base proportions as quickly as possible. This will help you keep the big picture in mind without losing yourself in the details. If you have a clear idea of your sculpt, always double-check your proportions against your main references.
- Refining the proportions
(Image: © Oliver Schümann)
When you’re satisfied that the base sculpt has enough details to describe the silhouette, you can begin working on refinements by adding extra pieces such as horns, deformations, and any other eye-catching touches.
- Adding the extra pieces
(Image: © Oliver Schümann)
For more visual interest and to stand as a counterpoint to the organic shapes, add extra non-organic pieces like drapery to your sculpture to make it feel believable in the world.
- Blending and detailing your model
(Image: © Oliver Schümann)
When you’re happy with the light and mood of your scene, go into the material of your sculpture and assign your textures. In the Material Editor, choose a Tiled UV node to import your UDIMs into KeyShot. You can use a Color Adjust node to push the contrast of the textures to match better with the lighting in the scene.
- Final touches and render settings
(Image: © Oliver Schümann)
If everything is in place, you can refine the scene even further. Go to the Project Lighting tab and set the Shadow Quality to 5, and activate Ground Illumination and Self Shadows. Global Illumination should also be activated, with the Ray Bounces and Rays both set to 32. Because KeyShot is CPU-intensive, you should activate GPU rendering instead, as the scene will run much smoother courtesy of the beefier modern graphics cards. Finally, to render your scene, go into the Render section, set up the channels you want to capture, saving them all to a single PSD file, and get the process running. If you set the render time to a specific time, the process will be much faster and the quality won’t suffer either.
- Refining the post-processing
(Image: © Oliver Schümann)
Post-processing is one of the most important parts of completing a successful project, and I used Photoshop for mine. First, use your base RAW image from KeyShot and multiply the Ambient Occlusion image on top with a low Opacity to avoid overshooting the darker areas. Next, you can use a Curve layer to start working on the lighter and darker areas of your composition.
- Making corrections and adjustments
(Image: © Oliver Schümann)
Use the Exposure settings to create even more contrast within your piece. Another great trick is to take a noise image and a mask to cut out your render, set the noise image’s layer to Screen, and tweak the Opacity values until you’re happy. That layer will help create extra visual interest compared to a clean surface, and bring more realism to your image.
Conclusion
In this tutorial, we’ve covered the basics of creating a bizarre baby using ZBrush, from conceptualizing the idea to refining the final render. By following these steps, you can create your own unique and terrifying creature. Remember to experiment with different techniques and tools to achieve the desired look and feel.
FAQs
Q: What software do I need to create a 3D model?
A: You can use ZBrush or other 3D modeling software like Blender, Maya, or 3ds Max.
Q: How do I assign textures to my 3D model?
A: You can use the Material Editor in ZBrush to import your UDIMs and assign textures to your 3D model.
Q: What is GPU rendering, and how does it help?
A: GPU rendering is a rendering technique that uses the graphics processing unit (GPU) to accelerate the rendering process, making it faster and more efficient. It is ideal for complex 3D scenes like those created with ZBrush.
