Hierarchical Structures for Dynamic Polygonal Simplification
... The rest of this introduction provid~a brief overview of the algorithm and describes results achieved with the current implementation. The next section steps back to review related work in polygonal simplification, a:nd explains the motivation for a new approach. The data structures and algorithm ar ...
... The rest of this introduction provid~a brief overview of the algorithm and describes results achieved with the current implementation. The next section steps back to review related work in polygonal simplification, a:nd explains the motivation for a new approach. The data structures and algorithm ar ...
Real-Time Ray Tracing Using Nvidia OptiX
... Ray tracing makes it possible to render realistic shadows, reflections and glass-like objects, which requires trickery when only rasterization is used. In rasterization, one computes the area on the screen where each object is to be shown, but do not analyze light’s impact on the scene. Ray tracing, ...
... Ray tracing makes it possible to render realistic shadows, reflections and glass-like objects, which requires trickery when only rasterization is used. In rasterization, one computes the area on the screen where each object is to be shown, but do not analyze light’s impact on the scene. Ray tracing, ...
ENT 273 Lecture 2
... Acquired Image is dependent on – Nature of sensing device Vidicon, CCD, infra red , grayscale , color – Properties of the device ...
... Acquired Image is dependent on – Nature of sensing device Vidicon, CCD, infra red , grayscale , color – Properties of the device ...
Viewing/Projection V Week 5, Mon Feb 1
... • simplify: avoid hidden surface calculations • each particle has small graphical primitive (blob) • pixel color: sum of all particles mapping to it ...
... • simplify: avoid hidden surface calculations • each particle has small graphical primitive (blob) • pixel color: sum of all particles mapping to it ...
12 - Imagecreation
... resolution have a large file size. • For an uncompressed image, there can be up to 3 bytes per pixel. • So a 5 megapixel image, as produced by some mobile phones, will have an uncompressed file size of 15 Megabytes. • mpeg compression can reduce this to 10% ...
... resolution have a large file size. • For an uncompressed image, there can be up to 3 bytes per pixel. • So a 5 megapixel image, as produced by some mobile phones, will have an uncompressed file size of 15 Megabytes. • mpeg compression can reduce this to 10% ...
PDF
... effect is usually modelled by invoking Snell’s law at the boundaries of the objects. This is akin to the assumption that the index of the refraction of the medium is piece-wise constant. In many environments, however, the index of refraction varies continuously due, for example, to the presence of h ...
... effect is usually modelled by invoking Snell’s law at the boundaries of the objects. This is akin to the assumption that the index of the refraction of the medium is piece-wise constant. In many environments, however, the index of refraction varies continuously due, for example, to the presence of h ...
Image-Based Rendering with Occlusions via Cubist Images
... sparse ray sampling with dense time, we can achieve one level of data compression using texture mapping methods. The more challenging problem is to take sparse time samples as well; temporal interpolation of such key-frame time samples in source-image space produces a smooth time sequence without th ...
... sparse ray sampling with dense time, we can achieve one level of data compression using texture mapping methods. The more challenging problem is to take sparse time samples as well; temporal interpolation of such key-frame time samples in source-image space produces a smooth time sequence without th ...
GPU based Single-Pass Ray Casting of Large Heightfields
... the ray over long distances (see section 3.3). They also present a method based on bilinear interpolation of heightfield values to improve the quality of the reconstructed surface obtained from point-sampled data. The method presented by Tevs et al. [34] also relies on BVHs stored in maximum mipmaps ...
... the ray over long distances (see section 3.3). They also present a method based on bilinear interpolation of heightfield values to improve the quality of the reconstructed surface obtained from point-sampled data. The method presented by Tevs et al. [34] also relies on BVHs stored in maximum mipmaps ...
FIRST EXPERIENCES WITH A MOBILE PLATFORM FOR FLEXIBLE 3D MODEL
... Image-based rendering is a now well established alternative to rendering methods based on geometric representations. The main promise is that it is able to generate photorealistic graphics and animations of scenes in realtime (McMillan and Bishop, 1995). Nowadays, panoramic views are the most well k ...
... Image-based rendering is a now well established alternative to rendering methods based on geometric representations. The main promise is that it is able to generate photorealistic graphics and animations of scenes in realtime (McMillan and Bishop, 1995). Nowadays, panoramic views are the most well k ...
Electromagnetic Waves and Optics Review Questions:
... Find the position of the image of the object shown by tracing at least two light rays that leave the object hit the reflecting or refraction surface and enter your eyes. Indicate whether the image is virtual or real. When determining the path of the light rays, be sure to use the normal as a referen ...
... Find the position of the image of the object shown by tracing at least two light rays that leave the object hit the reflecting or refraction surface and enter your eyes. Indicate whether the image is virtual or real. When determining the path of the light rays, be sure to use the normal as a referen ...
Game Graphics Beyond Realism
... Asking gamers about the most important features of a computer game, the majority will state one answer: Fun. Fun, resulting from a good gameplay and an intoxicating story are vital ingredients, whereas game graphics seem to play only a minor role. Marketing departments of game publishers however, ar ...
... Asking gamers about the most important features of a computer game, the majority will state one answer: Fun. Fun, resulting from a good gameplay and an intoxicating story are vital ingredients, whereas game graphics seem to play only a minor role. Marketing departments of game publishers however, ar ...
COMP136: Introduction to Computer Graphics
... • Constant Shading – Calculate one lighting calculation (pick a vertex) per triangle – Color the entire triangle the same color • Gouraud Shading – Calculate three lighting calculations (the vertices) per triangle – Linearly interpolate the colors as you scan convert • Phong Shading – While you scan ...
... • Constant Shading – Calculate one lighting calculation (pick a vertex) per triangle – Color the entire triangle the same color • Gouraud Shading – Calculate three lighting calculations (the vertices) per triangle – Linearly interpolate the colors as you scan convert • Phong Shading – While you scan ...
Ray Tracing - UW Graphics Group
... One of the basic tasks of computer graphics is rendering three-dimensional objects: taking a scene, or model, composed of many geometric objects arranged in 3D space and producing a 2D image that shows the objects as viewed from a particular viewpoint. It is the same operation that has been done for ...
... One of the basic tasks of computer graphics is rendering three-dimensional objects: taking a scene, or model, composed of many geometric objects arranged in 3D space and producing a 2D image that shows the objects as viewed from a particular viewpoint. It is the same operation that has been done for ...
PowerPoint presentation pptx file
... ray-traced rendering engine based on NVIDIA® OptiX™ technology. You can now simply and quickly design realistic geometric text and shapes in 3D space, eliminating the traditional time-consuming back and forth with external 3D tools. This new ray-tracing feature becomes truly interactive with NVIDIA ...
... ray-traced rendering engine based on NVIDIA® OptiX™ technology. You can now simply and quickly design realistic geometric text and shapes in 3D space, eliminating the traditional time-consuming back and forth with external 3D tools. This new ray-tracing feature becomes truly interactive with NVIDIA ...
Fast Visualization of Object Contours by Non
... rendered using the LMIP of our contour enhancing intensity function I P V . Another alternative of keeping the depth information is to assign the values of function g as colors and opacities modulated by the view-dependent intensity function I P V (Equation 2) to the sample points and to perform ...
... rendered using the LMIP of our contour enhancing intensity function I P V . Another alternative of keeping the depth information is to assign the values of function g as colors and opacities modulated by the view-dependent intensity function I P V (Equation 2) to the sample points and to perform ...
Rendering (computer graphics)
Rendering is the process of generating an image from a 2D or 3D model (or models in what collectively could be called a scene file), by means of computer programs. Also, the results of such a model can be called a rendering. A scene file contains objects in a strictly defined language or data structure; it would contain geometry, viewpoint, texture, lighting, and shading information as a description of the virtual scene. The data contained in the scene file is then passed to a rendering program to be processed and output to a digital image or raster graphics image file. The term ""rendering"" may be by analogy with an ""artist's rendering"" of a scene. Though the technical details of rendering methods vary, the general challenges to overcome in producing a 2D image from a 3D representation stored in a scene file are outlined as the graphics pipeline along a rendering device, such as a GPU. A GPU is a purpose-built device able to assist a CPU in performing complex rendering calculations. If a scene is to look relatively realistic and predictable under virtual lighting, the rendering software should solve the rendering equation. The rendering equation doesn't account for all lighting phenomena, but is a general lighting model for computer-generated imagery. 'Rendering' is also used to describe the process of calculating effects in a video editing program to produce final video output.Rendering is one of the major sub-topics of 3D computer graphics, and in practice is always connected to the others. In the graphics pipeline, it is the last major step, giving the final appearance to the models and animation. With the increasing sophistication of computer graphics since the 1970s, it has become a more distinct subject.Rendering has uses in architecture, video games, simulators, movie or TV visual effects, and design visualization, each employing a different balance of features and techniques. As a product, a wide variety of renderers are available. Some are integrated into larger modeling and animation packages, some are stand-alone, some are free open-source projects. On the inside, a renderer is a carefully engineered program, based on a selective mixture of disciplines related to: light physics, visual perception, mathematics and software development.In the case of 3D graphics, rendering may be done slowly, as in pre-rendering, or in real time. Pre-rendering is a computationally intensive process that is typically used for movie creation, while real-time rendering is often done for 3D video games which rely on the use of graphics cards with 3D hardware accelerators.