3D Modelling and Real-Time Rendering Techniques

Reducing the number of polygons used to model a 3D object, without sacrificing realism, to improve performance in real-time rendering.

The visual fidelity and detail of a 3D object is directly related to the number of polygons used to model it. More polygons mean more intricate shapes and textures, but also more strain on the system.

The process of minimizing the number of polygons in a 3D model while preserving its essential shape and visual integrity. This allows for faster rendering and smoother performance, especially in real-time applications like games.

A specialized tool in 3D modeling software for reducing the number of polygons in a model, while minimizing visual distortion. Helps to optimize models for real-time rendering.

Real-time rendering optimizes for speed and efficiency. It aims to create interactive 3D experiences by updating visuals rapidly.

A technique that reduces the complexity of a 3D model based on its distance from the viewer, or other factors like importance, speed or position. This allows for faster rendering without sacrificing visual quality.

A process of selectively disabling the visualization of 3D elements in a scene. This can be done by considering visibility within the viewport, object orientation, or hidden surface removal.

A culling technique where only 3D entities within a defined camera volume are rendered. This effectively eliminates the rendering of objects outside the viewer's 'sightline'.

A culling technique that prevents the rendering of surfaces that are facing away from the camera. This significantly reduces the number of polygons to be processed.

A culling technique that ensures only visible surfaces are rendered. This prevents the rendering of surfaces that are hidden behind other objects in the scene.

Determining if a polygon of a 3D object is visible or not, for faster rendering in a virtual environment.

Reusing the same 3D geometry in different parts of a virtual scene, with optional transformations.

A type of 3D object that always faces the viewer, often used to simplify complex geometry, allowing for faster rendering.

Geometric transformations that can be applied to cloned objects, including translation (moving), rotation (turning), and scaling (resizing).

A process of reducing the number of polygons in a 3D model without sacrificing realism, improving rendering performance.

A specialized tool used in 3D modeling software to reduce the number of polygons in a model while minimizing visual distortion.

The visual fidelity and detail of a 3D object is directly related to the number of polygons used to model it.

Rendering that prioritizes speed and efficiency, creating interactive 3D experiences by updating visuals rapidly.

Using smaller image resolutions for textures can significantly reduce file sizes, leading to less memory usage and faster loading times.

Choosing texture resolutions based on powers of two (2n) helps optimize GPU memory usage and improves performance. The GPU works most efficiently with these sizes.

Repeating smaller textures, or tiles, can create the illusion of larger patterns without needing massive textures, saving on memory and processing power.

Applying the same texture to different areas of the scene, but with different transformations (rotation, scaling, etc.), adds visual variety while still using the same memory.

Surfaces can be made to look more realistic by using textures to simulate attributes like reflectivity or roughness, adding depth and visual appeal without complex modeling.

Transparency textures allow for efficient creation of complex 3D objects with minimal polygons, potentially using only a simple plane. This optimizes performance by reducing processing load.

Light maps pre-calculate lighting effects, reducing the processing load on the GPU during real-time rendering, resulting in faster and smoother visuals.

Virtual textures are a technique that splits large textures into tiles, and progressively loads those tiles as needed. This dramatically reduces GPU memory usage and loading times.