One of the most difficult questions to answer - we explain the computer equivalent of metaphysically unanswered questions like: "What is CUDA? What is OpenGL and why should we deal with it?" We will explain all this in an easy to understand language. All these technologies play an important role in the creation of [...]
OpenCV (Open Source Computer Library) is an open source library for computer vision and machine learning software. OpenCV was developed to provide a common infrastructure for computer vision applications like 3D configurators and to accelerate the use of machine perception in commercial products. As a BSD-licensed product, OpenCV makes it easy for companies to [...]
Beam Tracing is an algorithm for simulating wave propagation. It has been developed in computer graphics to render 3D scenes for example to create a 3D configurator, but it has also been used in other similar areas such as acoustics and electromagnetism simulations. Beam tracing is a [...]
Backface Culling is an important part of how a 3D engine performs visibility checks for example to create a 3D configurator. The purpose is to detect polygons that are invisible in a particular scene - that is, polygons that point away from the viewer. Recognizing backward-facing polygons allows us to eliminate them from an [...]
Clipping in the context of computer graphics is a method to selectively enable or disable rendering operations within a defined range of interest. Mathematically, clipping can be described with the terminology of constructive geometry. A rendering algorithm draws only pixels at the intersection between the clip area and the scene model (for example 3D [...]
The Warnock algorithm is a hidden surface algorithm developed by John Warnock that is classically used in graphics (for example to create a 3D configurator). It explains the problems of displaying a difficult image by recursively subdividing a view until areas are reached that are trivial to evaluate. If the view is easy to [...]
The Painter's algorithm, also known as Priority Fill, is one of the simplest solutions to the visibility problem in 3D computer graphics for example to create a error-free 3D configurator. When projecting a 3D scene onto a 2D plane, it is eventually necessary to decide which polygons are visible and which are hidden. [...]
This article deals with overcoming the unconscious boundaries that are often set in a project to create a 3D configurator. It then describes the various techniques that John Cormack has used to develop his Visible Surface Determination (VSD) and Culling (VSD) algorithms in Quake. This includes a description of the potentially visible set (PVS), [...]
In the following article we would like to go a little deeper into the so-called "Quake Hidden Surface Removal". It often plays an important role in 3D configurator projects. Moving objects and Z-buffers. We start with a few remarks about the problems with moving objects (billboards/sprites, BSP [...]
A buffer resource is a collection of fully typed data grouped into elements. You can use buffers to store a variety of data, including position vectors, normal vectors, texture coordinates in a vertex buffer, indexes in an index buffer, or device state. A buffer element consists of 1 to 4 components. Buffer elements can [...]
