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GLSL 4.50 Spec
The OpenGL® Shading Language Language Version: 4.50 Document Revision: 7 09-May-2017 Editor: John Kessenich, Google Version 1.1 Authors: John Kessenich, Dave Baldwin, Randi Rost Copyright (c) 2008-2017 The Khronos Group Inc. All Rights Reserved. This specification is protected by copyright laws and contains material proprietary to the Khronos Group, Inc. It or any components may not be reproduced, republished, distributed, transmitted, displayed, broadcast, or otherwise exploited in any manner without the express prior written permission of Khronos Group. You may use this specification for implementing the functionality therein, without altering or removing any trademark, copyright or other notice from the specification, but the receipt or possession of this specification does not convey any rights to reproduce, disclose, or distribute its contents, or to manufacture, use, or sell anything that it may describe, in whole or in part. Khronos Group grants express permission to any current Promoter, Contributor or Adopter member of Khronos to copy and redistribute UNMODIFIED versions of this specification in any fashion, provided that NO CHARGE is made for the specification and the latest available update of the specification for any version of the API is used whenever possible. Such distributed specification may be reformatted AS LONG AS the contents of the specification are not changed in any way. The specification may be incorporated into a product that is sold as long as such product includes significant independent work developed by the seller. A link to the current version of this specification on the Khronos Group website should be included whenever possible with specification distributions. -
The Uch Enmek Example(Altai Republic,Siberia)
Faculty of Environmental Sciences Institute for Cartography Master Thesis Concept and Implementation of a Contextualized Navigable 3D Landscape Model: The Uch Enmek Example(Altai Republic,Siberia). Mussab Mohamed Abuelhassan Abdalla Born on: 7th December 1983 in Khartoum Matriculation number: 4118733 Matriculation year: 2014 to achieve the academic degree Master of Science (M.Sc.) Supervisors Dr.Nikolas Prechtel Dr.Sander Münster Submitted on: 18th September 2017 Faculty of Environmental Sciences Institute for Cartography Task for the preparation of a Master Thesis Name: Mussab Mohamed Abuelhassan Abdalla Matriculation number: 4118733 Matriculation year: 2014 Title: Concept and Implementation of a Contextualized Navigable 3D Landscape Model: The Uch Enmek Example(Altai Republic,Siberia). Objectives of work Scope/Previous Results:Virtual Globes can attract and inform websites visitors on natural and cultural objects and sceneries.Geo-centered information transfer is suitable for majority of sites and artifacts. Virtual Globes have been tested with an involvement of TUD institutes: e.g. the GEPAM project (Weller,2013), and an archaeological excavation site in the Altai Mountains ("Uch enmek", c.f. Schmid 2012, Schubert 2014).Virtual Globes technology should be flexible in terms of the desired geo-data configuration. Research data should be controlled by the authors. Modes of linking geo-objects to different types of meta-information seems evenly important for a successful deployment. Motivation: For an archaeological conservation site ("Uch Enmek") effort has already been directed into data collection, model development and an initial web-based presentation.The present "Open Web Globe" technology is not developed any further, what calls for a migra- tion into a different web environment. -
A Streamable Format for Generalized Web-Based 3D Data Transmission
SRC - A Streamable Format for Generalized Web-based 3D Data Transmission Max Limper1;2 Maik Thoner¨ 1 Johannes Behr1 Dieter W. Fellner1;2 ∗ 1 Fraunhofer IGD 2 TU Darmstadt (a) 17% triangles, (b) 86% triangles, (c) 86% triangles, (d) 100% triangles, low-resolution texture low-resolution texture high-resolution texture high-resolution texture Figure 1: Streaming of mesh data, progressively encoded with the POP Buffer method, using our proposed SRC container format. We minimize the number of HTTP requests, and at the same time allow for a progressive transmission of geometry and texture information, using interleaved data chunks. Our proposed format is highly flexible, well-aligned with GPU structures, and can easily be integrated into X3D. Abstract 1 Introduction A problem that still remains with today’s technologies for 3D as- Recently, various efforts have been made in order to design file set transmission is the lack of progressive streaming of all relevant formats for transmission of 3D geometry, for the use with high- mesh and texture data, with a minimal number of HTTP requests. performance 3D applications on the Web. The ultimate goal is to Existing solutions, like glTF or X3DOM’s geometry formats, either design a solution that scales well with large data sets, enables a pro- send all data within a single batch, or they introduce an unnecessary gressive transmission of mesh data, eliminates decode time through large number of requests. Furthermore, there is still no established direct GPU uploads, and minimizes the number of HTTP requests. format for a joined, interleaved transmission of geometry data and Notable results include the WebGL-Loader library [Chun 2012], texture data. -
Web3d-X3D-SIGGRAPH 2018 Xr Futures.Pdf
All browsers All platforms Geospatial Simulation Medical Humanoid Animation Design VR Technologies 3D Printing Augmented Reality &Scanning X3D: Your backbone for new dimensions of 3D • • … • • • • • • Implementations on multiple platforms: desktop, mobile, Web • • www.web3d.org/what-x3d X-ite Key Factors of durable X3D • Long Term Stability • Visualization • Performance • Integration • Data Management • Real-time Interactivity • Security • Ease of Use X3D Capabilities High Poly, Oculus Drilling Rig Progressive Loading Support Animation, interaction, Happy Buddha Classroom shadows, details Web3D… VR++ … Online Evolution ... SIGGRAPH 2018 BOF Nicholas Polys Johannes Behr MitchWilliams Anita Havele 2017-2018 News ● X_ITE library updated ● Deployed in X3D examples archive ● X3DOM support for Gltf and WebVR ● New Castle3D X3D Game Engine release ● H-ANIM 2.0 under ISO-IEC ballot ● 3D Print Exchange (NIH, Navy) upgrades to Drupal 8 ● New Scanning initiatives and vendor support 3D on the Web Engines access access worlds by url ● Stand-alone Plug-ins in Web browsers ● Native WebGL in mobile browsers ○ X3DOM ○ X_ITE ○ GearVR ● Gltf 2.0 support (PBR) All HMD platforms! ● WebVR ● X3DOM ● GearVR VR on the Web Engines access worlds by url ● All HMD platforms! ● WebVR ● X3DOM ● GearVR WebVR With X3DOM Javascript library ● Photospheres ● Videospheres ● Volumes ● Heritage ● 3D city models ● ... X3DOM Johannes Behr, Timo Sturm Fraunhofer IGD GearVR Mitch Williams, Samsung Spec Relationships Process for New Capabilities HTML5 Open Web Arch • Harmonization of ID linkages and event models, HTML DOM and X3D • Composition with Cascading Style Sheets (CSS) • Compatibility + usage of Scalable Vector Graphics (SVG) • Accessibility, annotations, internationalization (I18N), etc. • X3D as presentation layer compatible with Semantic Web • Linkage of hybrid model data (MOST) Some aspects are standardization, others simply aligning best practices. -
Interfacing Apache HTTP Server 2.4 with External Applications
Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick November 6, 2012 Who am I? Interfacing Apache HTTP Server 2.4 with External Applications Met Unix (in the form of Xenix) in 1985 Jeff Trawick Joined IBM in 1990 to work on network software for mainframes Moved to a different organization in 2000 to work on Apache httpd Later spent about 4 years at Sun/Oracle Got tired of being tired of being an employee of too-huge corporation so formed my own too-small company Currently working part-time, coding on other projects, and taking classes Overview Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick Huge problem space, so simplify Perspective: \General purpose" web servers, not minimal application containers which implement HTTP \Applications:" Code that runs dynamically on the server during request processing to process input and generate output Possible web server interactions Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick Native code plugin modules (uhh, assuming server is native code) Non-native code + language interpreter inside server (Lua, Perl, etc.) Arbitrary processes on the other side of a standard wire protocol like HTTP (proxy), CGI, FastCGI, etc. (Java and \all of the above") or private protocol Some hybrid such as mod fcgid mod fcgid as example hybrid Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick Supports applications which implement a standard wire protocol, no restriction on implementation mechanism Has extensive support for managing the application[+interpreter] processes so that the management of the application processes is well-integrated with the web server Contrast with mod proxy fcgi (pure FastCGI, no process management) or mod php (no processes/threads other than those of web server). -
Webgl™ Optimizations for Mobile
WebGL™ Optimizations for Mobile Lorenzo Dal Col Senior Software Engineer, ARM 1 Agenda 1. Introduction to WebGL™ on mobile . Rendering Pipeline . Locate the bottleneck 2. Performance analysis and debugging tools for WebGL . Generic optimization tips 3. PlayCanvas experience . WebGL Inspector 4. Use case: PlayCanvas Swooop . ARM® DS-5 Streamline . ARM Mali™ Graphics Debugger 5. Q & A 2 Bring the Power of OpenGL® ES to Mobile Browsers What is WebGL™? Why WebGL? . A cross-platform, royalty free web . It brings plug-in free 3D to the web, standard implemented right into the browser. Low-level 3D graphics API . Major browser vendors are members of . Based on OpenGL® ES 2.0 the WebGL Working Group: . A shader based API using GLSL . Apple (Safari® browser) . Mozilla (Firefox® browser) (OpenGL Shading Language) . Google (Chrome™ browser) . Opera (Opera™ browser) . Some concessions made to JavaScript™ (memory management) 3 Introduction to WebGL™ . How does it fit in a web browser? . You use JavaScript™ to control it. Your JavaScript is embedded in HTML5 and uses its Canvas element to draw on. What do you need to start creating graphics? . Obtain WebGLrenderingContext object for a given HTMLCanvasElement. It creates a drawing buffer into which the API calls are rendered. For example: var canvas = document.getElementById('canvas1'); var gl = canvas.getContext('webgl'); canvas.width = newWidth; canvas.height = newHeight; gl.viewport(0, 0, canvas.width, canvas.height); 4 WebGL™ Stack What is happening when a WebGL page is loaded . User enters URL . HTTP stack requests the HTML page Browser . Additional requests will be necessary to get Space User JavaScript™ code and other resources WebKit JavaScript Engine . -
Gltf Overview Jan21
glTF Overview Efficient, reliable transmission of 3D Assets Neil Trevett Khronos President VP Developer Ecosystems, NVIDIA [email protected]|@neilt3d January 2021 This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 1 glTF – The JPEG of 3D! glTF spec development on open GitHub – get involved! https://github.com/KhronosGroup/glTF Compact to Transmit Simple and Fast to Load Describes Full Scenes Runtime Neutral Open and Extensible glTF 2.0 – June 2017 Efficient, reliable glTF 1.0 – December 2015 Native AND Web APIs transmission Primarily for WebGL Physically Based Rendering Bring 3D assets into 1000s of Uses GLSL for materials Metallic-Roughness and Specular-Glossiness apps and engines This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 2 Core glTF 2.0 Asset Structure .gltf (JSON) Node hierarchy, PBR material textures, cameras .bin .png Geometry: vertices and indices .jpg Animation: key-frames .ktx2 Skins: inverse-bind matrices Textures PBR stands for “Physically-Based Rendering” Mandatory Metallic-Roughness Materials Base Color (Albedo) | Metalness | Roughness Emission | Normal Map | Baked Ambient Occlusion Optional Specular-Glossiness Materials Geometry Diffuse | Specular | Glossiness Texture based PBR materials This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 3 https://github.khronos.org/glTF-Project-Explorer/ This work -
Opengl Shading Languag 2Nd Edition (Orange Book)
OpenGL® Shading Language, Second Edition By Randi J. Rost ............................................... Publisher: Addison Wesley Professional Pub Date: January 25, 2006 Print ISBN-10: 0-321-33489-2 Print ISBN-13: 978-0-321-33489-3 Pages: 800 Table of Contents | Index "As the 'Red Book' is known to be the gold standard for OpenGL, the 'Orange Book' is considered to be the gold standard for the OpenGL Shading Language. With Randi's extensive knowledge of OpenGL and GLSL, you can be assured you will be learning from a graphics industry veteran. Within the pages of the second edition you can find topics from beginning shader development to advanced topics such as the spherical harmonic lighting model and more." David Tommeraasen, CEO/Programmer, Plasma Software "This will be the definitive guide for OpenGL shaders; no other book goes into this detail. Rost has done an excellent job at setting the stage for shader development, what the purpose is, how to do it, and how it all fits together. The book includes great examples and details, and good additional coverage of 2.0 changes!" Jeffery Galinovsky, Director of Emerging Market Platform Development, Intel Corporation "The coverage in this new edition of the book is pitched just right to help many new shader- writers get started, but with enough deep information for the 'old hands.'" Marc Olano, Assistant Professor, University of Maryland "This is a really great book on GLSLwell written and organized, very accessible, and with good real-world examples and sample code. The topics flow naturally and easily, explanatory code fragments are inserted in very logical places to illustrate concepts, and all in all, this book makes an excellent tutorial as well as a reference." John Carey, Chief Technology Officer, C.O.R.E. -
Opengl 4.0 Shading Language Cookbook
OpenGL 4.0 Shading Language Cookbook Over 60 highly focused, practical recipes to maximize your use of the OpenGL Shading Language David Wolff BIRMINGHAM - MUMBAI OpenGL 4.0 Shading Language Cookbook Copyright © 2011 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information. First published: July 2011 Production Reference: 1180711 Published by Packt Publishing Ltd. 32 Lincoln Road Olton Birmingham, B27 6PA, UK. ISBN 978-1-849514-76-7 www.packtpub.com Cover Image by Fillipo ([email protected]) Credits Author Project Coordinator David Wolff Srimoyee Ghoshal Reviewers Proofreader Martin Christen Bernadette Watkins Nicolas Delalondre Indexer Markus Pabst Hemangini Bari Brandon Whitley Graphics Acquisition Editor Nilesh Mohite Usha Iyer Valentina J. D’silva Development Editor Production Coordinators Chris Rodrigues Kruthika Bangera Technical Editors Adline Swetha Jesuthas Kavita Iyer Cover Work Azharuddin Sheikh Kruthika Bangera Copy Editor Neha Shetty About the Author David Wolff is an associate professor in the Computer Science and Computer Engineering Department at Pacific Lutheran University (PLU). -
You Are Hacked : AJAX Security Essentials for Enterprise Java
You Are Hacked /: AJAX Security Essentials for Enterprise Java™ Technology Developers Karthik Shyamsunder James Gould Principal Engineer Principal Engineer VeriSign, Inc. VeriSign, Inc. TS-6014 2007 JavaOneSM Conference | Session TS-6014 | Speaker Qualifications • Karthik Shyamsunder • Principal Engineer, VeriSign, Inc. • Adjunct Faculty at Johns Hopkins University • James Gould • Principal Engineer, VeriSign, Inc. • Application Architect for VeriSign Naming Services 2 2007 JavaOneSM Conference | Session TS-6014 | Overall Presentation Goal What will you learn? 1. Understand the AJAX security model. 2. Identify the various threats to your AJAX web applications. 3. Learn what you can do to protect your application from these threats. 2007 JavaOneSM Conference | Session TS-6014 | Agenda Internet Threat Model Browser Security Model Vulnerabilities, Attacks, and Countermeasures Secure Software-Development Process Summary Q&A 4 2007 JavaOneSM Conference | Session TS-6014 | Agenda Internet Threat Model Browser Security Model Vulnerabilities, Attacks, and Countermeasures Secure Software-Development Process Summary Q&A 2007 JavaOneSM Conference | Session TS-6014 | 2007 JavaOneSM Conference | Session TS-6014 | The Problem Is Real • Cyber crimes and incidents are on the rise • 3 out of 4 business web sites are vulnerable to attack (Gartner) • 75% of the hacks occur at the application level (Gartner) Source: Gartner 2007 JavaOneSM Conference | Session TS-6014 | Architecture of Traditional Web Applications • Browser—A thin client Backend Processes -
Using Fastcgi with Apache HTTP Server 2.4
Using FastCGI with Apache HTTP Server 2.4 Jeff Trawick The world of FastCGI Using FastCGI with Apache HTTP Server 2.4 FastCGI with Apache httpd 2.4 Jeff Trawick Choosing mod fcgid http://emptyhammock.com/ mod proxy fcgi [email protected] mod authnz fcgi Other tools April 8, 2014 PHP Applications and FastCGI Future 1/97 Revisions Using FastCGI with Apache HTTP Server 2.4 Jeff Trawick The world of FastCGI 2014-04-10 FastCGI with Apache httpd Add Require expr ... to /www/tools/ 2.4 configuration in More classic CGI configuration Choosing slide to resolve a potential security hole. Thank mod fcgid mod proxy fcgi you Eric Covener! mod authnz fcgi Other tools PHP Applications and FastCGI Future 2/97 Get these slides... Using FastCGI with Apache HTTP Server 2.4 Jeff Trawick The world of FastCGI FastCGI with Apache httpd 2.4 http://emptyhammock.com/projects/info/slides.html Choosing mod fcgid mod proxy fcgi mod authnz fcgi Other tools PHP Applications and FastCGI Future 3/97 Table of Contents Using FastCGI with Apache HTTP Server 1 The world of FastCGI 2.4 Jeff Trawick 2 FastCGI with Apache httpd 2.4 The world of FastCGI 3 Choosing FastCGI with Apache httpd 4 mod fcgid 2.4 Choosing 5 mod proxy fcgi mod fcgid mod proxy fcgi 6 mod authnz fcgi mod authnz fcgi Other tools 7 Other tools PHP Applications 8 PHP Applications and FastCGI and FastCGI Future 9 Future 4/97 Introduction | Who am I? Using FastCGI with Apache HTTP Server 2.4 I've worked at Jeff Trawick several large corporations, for over two decades The world of FastCGI my own one-person company, Emptyhammock, for the FastCGI with last two years Apache httpd 2.4 I've worked on Choosing several products which were primarily based on or mod fcgid otherwise included Apache HTTP Server mod proxy fcgi lower-level networking products mod authnz fcgi web applications Other tools PHP I've developed or maintained some of the FastCGI Applications and FastCGI support in the Apache HTTP Server project. -
The Opengl Shading Language
The OpenGL Shading Language Bill Licea-Kane ATI Research, Inc. 1 OpenGL Shading Language Today •Brief History • How we replace Fixed Function • OpenGL Programmer View • OpenGL Shaderwriter View • Examples 2 OpenGL Shading Language Today •Brief History • How we replace Fixed Function • OpenGL Programmer View • OpenGL Shaderwriter View • Examples 3 Brief History 1968 “As far as generating pictures from data is concerned, we feel the display processor should be a specialized device, capable only of generating pictures from read- only representations in core.” [Myer, Sutherland] On the Design of Display Processors. Communications of the ACM, Volume 11 Number 6, June, 1968 4 Brief History 1978 THE PROGRAMMING LANGUAGE [Kernighan, Ritchie] The C Programming Language 1978 5 Brief History 1984 “Shading is an important part of computer imagery, but shaders have been based on fixed models to which all surfaces must conform. As computer imagery becomes more sophisticated, surfaces have more complex shading characteristics and thus require a less rigid shading model." [Cook] Shade Trees SIGGRAPH 1984 6 Brief History 1985 “We introduce the concept of a Pixel Stream Editor. This forms the basis for an interactive synthesizer for designing highly realistic Computer Generated Imagery. The designer works in an interactive Very High Level programming environment which provides a very fast concept/implement/view iteration cycle." [Perlin] An Image Synthesizer SIGGRAPH 1985 7 Brief History 1990 “A shading language provides a means to extend the shading and lighting formulae used by a rendering system." … "…because it is based on a simple subset of C, it is easy to parse and implement, but, because it has many high-level features that customize it for shading and lighting calulations, it is easy to use." [Hanrahan, Lawson] A Language for Shading and Lighting Calculations SIGGRAPH 1990 8 Brief History June 30, 1992 “This document describes the OpenGL graphics system: what it is, how it acts, and what is required to implement it.” “OpenGL does not provide a programming language.