Author: Saahil Mandar Sathe

I learnt ZBrush and discovered how powerful and versatile it is for digital sculpting and 3D art. At first, the interface felt overwhelming, but with regular practice I gradually became more confident using different brushes, sculpting tools, and workflows. Through this learning process, I improved my understanding of form, anatomy, proportions, and fine details, which are essential for creating realistic and expressive models. I also learnt how to refine shapes, add surface details, and think more creatively while working in three dimensions. Overall, learning ZBrush was a challenging yet rewarding experience that strengthened my technical skills and inspired me to keep exploring and improving in 3D design.

I tried making a skull in ZBrush as a detailed sculpting exercise, and it was a highly educational experience. I started by blocking out the basic forms to establish the correct overall shape and proportions of the skull, focusing on symmetry and structure. Once the primary forms were in place, I moved on to refining the secondary forms, carefully sculpting areas such as the eye sockets, cheekbones, nasal cavity, jaw, and cranium. A major challenge was keeping the proportions accurate while adding finer details, which required constant comparison and adjustment. Through this process, I learnt how to use different brushes and subdivision levels effectively, allowing me to add detail without losing the original form. Overall, sculpting the skull improved my understanding of anatomy, strengthened my control over sculpting tools, and increased my confidence in creating detailed 3D models.

After that, I tried exporting a sample model from ZBrush and importing it into Substance Painter. This time, it wasn’t a skull but a sampled dog model, which helped me better understand how a finished 3D model moves through the pipeline. I learnt how to export the model correctly and then bring it into Substance Painter for texturing. Working with the dog model allowed me to experiment with materials, colors, and surface details, making the model feel more realistic. This step helped me understand the connection between sculpting and texturing and gave me practical experience with a real 3D workflow.

2D elements were composited into the live-action footage using precise 2D tracking techniques. The assets were animated to match the motion, scale, and perspective of the original camera movement, ensuring seamless integration with the scene. Additional adjustments were made to timing, positioning, and blending to maintain visual continuity and realism throughout the shot.

This Nuke workflow is built around a planar-tracked shot, where the main plate is first stabilized using a planar track and then processed through a series of roto, transforms, and merges to integrate multiple elements seamlessly. The planar track drives corner pin and transform nodes, allowing inserted graphics and textures to lock naturally to the surface while maintaining perspective and parallax. Roto nodes are used to isolate specific areas for masking and cleanup, with glows and color operations added to enhance integration. Multiple merge chains composite the tracked elements back over the original plate, while premultiplication and alpha management ensure clean edges. Finally, subtle blurs and lens effects help match the original footage, resulting in a cohesive composite that follows the planar motion of the shot accurately.

In this shot, an LED pixel grid PNG is composited over the original footage to create a believable screen effect. The plate is brought into Nuke and the LED texture is aligned to the screen area using transforms and corner pin data driven by the planar track, ensuring the pixel pattern sticks accurately to the surface throughout the motion. The grid is blended using overlay and merge operations, with opacity and color adjustments to match the brightness and contrast of the original screen. Subtle blurs, glows, and premultiplication are applied to soften the pixel edges and integrate the effect naturally into the footage, resulting in a realistic LED display that follows the camera movement and perspective of the shot.

In this composite, a planar track is used to lock the artwork accurately onto the wall surface, with a roto shape defining the exact screen/poster area. The planar track provides stable corner pin data, ensuring the element follows the perspective, scale, and motion of the shot, while the roto refines the edges and masks out unwanted areas. This combination allows the inserted graphic to sit naturally within the frame, preserving surface distortion and camera movement. Final integration is achieved through careful blending, color matching, and subtle texture retention, making the composited element feel like it was originally part of the environment.

I learnt 3D Equalizer and gained an understanding of how it is used for matchmoving and camera tracking in visual effects. Through this process, I learnt how to analyze live-action footage, track camera movement, and accurately align 3D space with real scenes. At first, the interface and tracking process were challenging, but with practice I became more comfortable working with tracking points and camera data. Learning 3D Equalizer helped me understand the technical side of VFX and how 3D elements are integrated seamlessly into live-action footage.

At first, we tracked a face in 3D Equalizer by carefully analyzing the footage and placing accurate tracking points on key facial features. The process involved adjusting and refining the tracks to make sure they followed the face movement consistently throughout the shot. Understanding camera movement and facial motion was challenging at the beginning, but with practice it became easier to manage and correct tracking errors. This face-tracking exercise helped me understand how precise match moving works and how important accurate tracking is in visual effects production.

After importing the tracked data into Maya, I set up the scene by placing the face model and applying the animation so that it matched the tracked movement accurately. I carefully adjusted the position, scale, and rotation of the model to ensure it aligned properly with the tracked face throughout the sequence. This step required close attention to detail, as even small mismatches could break the realism. Once the animation and alignment were finalized, I focused on refining the scene by checking camera settings, lighting, and basic shaders. Finally, I rendered the sequence, which helped me understand the complete workflow from tracking to animation and rendering, and showed me how multiple software tools come together in a professional VFX pipeline.