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Gaussian Splatting: Painting the Future of 3D Computer Graphics Rendering


Imagine walking into an art studio. On one side, you see traditional paintbrushes and canvases, and on the other, a revolutionary tool that paints using a unique method, creating lifelike masterpieces in mere minutes. This new tool is to the art world what Gaussian Splatting is to the realm of computer graphics.


Understanding Gaussian Splatting Through Art

In the world of painting, artists use brushes to layer colors, creating depth and detail. Gaussian Splatting, in essence, is like using a special brush that paints with 3D gaussians instead of regular paint. By combining stretched and rotated 2D Gaussians, akin to an artist blending colors, this method allows for real-time rendering, crafting detailed scenes almost instantaneously.

Just as an artist can capture every nuance of a sunset or the intricate details of a face, Gaussian Splatting provides a continuous scene representation, capturing every single point in space for a vivid and accurate depiction.





The Masterstroke of Gaussian Splatting

In the art world, techniques evolve, giving artists new ways to express their visions. Similarly, in the realm of computer graphics, neural rendering algorithms have opened up new horizons. These algorithms, like master artists, have reduced imperfections and consistently delivered superior results. Gaussian Splatting, with its avant-garde approach, is the next step in this evolution.

Imagine an artist who can recreate any scene, any environment, in real-time, allowing viewers to immerse themselves in the artwork. That's the power of Gaussian Splatting.



Gaussian splatting

Crafting Masterpieces in the Real World

The magic brush of Gaussian Splatting can be wielded in various arenas:

  1. Architecture & Interior Design: Craft lifelike blueprints of structures, allowing clients to walk through their dream spaces before they're even built.

  2. Digital Twin Technologies: Paint accurate digital replicas of physical assets, enhancing real-time monitoring.

  3. Entertainment & Gaming: Create immersive worlds and hyper-realistic scenes, transporting users into the heart of the action.

A technical breakdown on how Gaussian splatting differs from the ray tracing methods of rendering :


1. Initiating Rays:

Just as in traditional ray tracing or ray casting, for each pixel of the camera's view, you shoot a ray from the camera's position into the scene.

2. Ray and Gaussian Interaction:

Unlike traditional methods where rays test for intersection with solid surfaces, here rays gather information from all Gaussians they come close to.

The key is the "come close to" part. Each Gaussian will have an influence on the ray based on how close the ray gets to the Gaussian's center and the spread (σ) of the Gaussian.

  • If the ray passes very close to the Gaussian's center, the Gaussian will have a significant contribution.

  • If the ray is far from the Gaussian, its influence diminishes.

3. Accumulating Influence:

As the ray traverses the scene, it accumulates influences from all Gaussians it comes close to. This accumulation can be thought of as a weighted sum where Gaussians closer to the ray contribute more.

4. Depth and Density Considerations:

In regions where Gaussians are densely packed or overlapping, the accumulated value can get high quickly. This is where techniques like adaptive step sizes can come into play:

  • If the ray is in a dense region, you can take smaller steps and accumulate Gaussian influence more frequently.

  • In sparser regions, you can afford to take bigger steps.

5. Termination:

In traditional ray tracing, once a ray hits a surface, some algorithms might terminate it (or spawn new rays for reflections, refractions, etc.). With Gaussians, the termination might be based on accumulated influence. If the accumulated value goes beyond a threshold (meaning the ray has gathered enough "information" or "light"), it can be terminated early.

6. Color Computation:

The accumulated influences from all the Gaussians can then be used to compute the color for the pixel. This can be a complex operation based on the properties of each Gaussian (e.g., color, intensity) and their respective distances to the ray.

7. Shading and Lighting:

Additional effects can be layered on top. For instance, you can still use traditional lighting models to influence the final pixel color based on the accumulated Gaussian values and light positions.


Image is about how Gaussian splatting differs from the ray tracing methods of rendering


The fundamental difference between traditional ray tracing and this Gaussian-based approach is in the interaction. Instead of looking for solid intersections, rays are constantly gathering information from their environment. It's like moving a sensor through a fog-filled room where the fog density varies. The sensor doesn't need to "hit" anything; it's continuously measuring the fog density (or Gaussian influence) as it moves. This continuous measurement and accumulation process gives the Gaussian-based rendering its unique capabilities and visual output.


Why Choose Viga Entertainment Technology?

At Viga Entertainment Technology, we're the curators of this new age art form. With Gaussian Splatting, we're ready to craft masterpieces in the world of computer graphics. Whether you're an architect, game developer, or someone looking to harness the power of 3D computer graphics rendering, our gallery is open.


The Renaissance of rendering is upon us, led by Gaussian Splatting. Join us in crafting the masterpieces of tomorrow.

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