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3D Community News | lundi 25 novembre 2024
Topaz Labs - How To Enhance Low Quality Videos

Bringing old, low-resolution videos to life was impossible until Topaz Labs Video AI made it a piece of cake. With advanced AI models, Topaz allows you to upscale, denoise, and refine videos to achieve impressive results. Let's explore how to transform a 320x240 pixel video into a crisp and high-resolution one by upscaling it 4x while addressing common artifacts and imperfections!

Step 1: Setting the Stage.

Low-quality videos, such as those captured on early mobile phones or VHS tapes, present unique challenges. Topaz Labs Video AI simplifies the process with various AI models designed for different video types.

Example Project.
A segment from the classic film The Scarlet Pimpernel was chosen for this tutorial. The goal? Transform a compressed, low-resolution clip into a clear and visually appealing video.

Step 2: Choosing the Right AI Model.

Topaz Labs offers various AI models tailored for specific use cases. For this project, the Nyx AI model was selected, as it excels at enhancing older films and VHS footage by flattening compression artifacts while preserving sharp edges and fine details.

3. Settings Overview.
Create a cylindrical object to represent the vine’s body. Apply the Path Deform Modifier to align it with the control spline. Enable Auto Stretch for dynamic length adjustments. Reduce geometry complexity by optimizing segments to balance detail and performance.
  • Upscale Factor: 4x (from 320x240 to 1280x960).
  • Recover Detail: Set to zero to avoid retaining original compression artifacts.
  • Model Variant: Nyx for optimal balance; Nyx Fast is available for quicker but slightly less refined results.

Step 3: Fine-Tuning the Enhancement.

The tutorial highlights the importance of adjusting parameters for optimal results.

  • Sharpening: Increases clarity by refining edges.
  • Dehaloing: Removes halos around sharpened edges, common in older video formats.
  • Noise Reduction: Balances compression removal while adding a touch of grain to maintain a natural texture.
4. Branching Out.
Introduce smaller branches using the Array Modifier in spline mode. Adjust random rotations and scales for variety, and use the Spline Relax Modifier to smooth out inconsistencies. For added realism, conform these branches to their host surface.
5. Adding Leaves and Flowers.
Design lightweight leaves using planes with modifiers like Taper, Bend, and XForm for shaping. Attach these leaves to splines using an array, scaling them progressively to mimic natural growth. Flowers follow a similar process, enhanced by the Phyllotaxis Pattern in the Array Modifier, replicating nature's golden ratio.
6. Overhanging Vines.
For cascading vines, apply the Bend Modifier to new branches and layer noise for randomness. Use spline arrays to generate clusters of leaves and flowers, emphasizing a dense, overgrown appearance.
1. Building the Base Structure.
The foundation of the vines involves editable splines, which serve as the control paths. Begin by drawing a spline to outline the main vine's direction. Normalize it to distribute vertices evenly, ensuring smoother results when conforming to surfaces. Utilize the Conform Modifier to stick the vine onto geometry, and tweak settings to ensure a natural alignment.


Materials and Textures.

Neale employs simple color materials with noise-based bump maps to simulate organic textures. By leveraging multi-material setups and random ID assignments, he achieves variation in leaves and flowers, ensuring a vibrant, natural look.



Advantages of Procedural Methods.

To ensure that renders are as detailed as possible, Silva frequently uses the HD Upscaler feature. This tool enhances the resolution of images, refining details and reducing imperfections without compromising the quality of the design. Silva describes this feature as a “pleasant surprise,” noting its recent improvements and its ability to add clarity to images in a way that traditional post-processing techniques often struggle to match.

  • Flexibility: Adjust control splines, and the entire vine system updates dynamically.
  • Efficiency: Built-in modifiers eliminate the need for external plugins.
  • Performance-Friendly: Optimized geometry ensures minimal system strain while maintaining visual quality.


Conclusion.

Paul Neale's tutorial showcases the versatility of 3ds Max’s built-in tools in creating lifelike procedural vines. This approach is ideal for projects requiring scalability and intricate detailing, such as garden visualizations or overgrown ruins. By mastering these techniques, artists can elevate their creative outputs while maintaining control over design complexity.

Check out the video tutorial on how to create vines in 3ds Max using a procedural way below:


Paul Neale is a highly respected 3D artist, technical director, and educator with over two decades of experience in the industry. Specializing in 3ds Max, Paul is renowned for his expertise in character rigging, procedural modeling, and technical animation. Through his workshops, online tutorials, and professional projects, he has inspired countless artists to push the boundaries of 3D design. Paul’s commitment to sharing practical knowledge, as showcased in his procedural vines tutorial, has solidified his reputation as a leader in the CG community.


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