PDF Download Delphi Developer's Guide To OPENGL
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Delphi Developer's Guide To OPENGL
PDF Download Delphi Developer's Guide To OPENGL
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Amazon.com Review
The Delphi Developer's Guide to OpenGL gives an outline of OpenGL--once a proprietary graphics library that used to reside only on expensive workstations--and explains its capabilities, including how to use it inside Borland's popular programming language, Delphi. The book begins with a tour of creating a Delphi project that can utilize OpenGL. Over the first five chapters, the book demonstrates how 3D graphics work using popular computer graphics nomenclature as well as instructions for drawing OpenGL objects in perspective within a Delphi window, and the implementation of the three different types of OpenGL lighting (ambient, specular, and diffuse) upon those objects. While the book provides great coverage on some of OpenGL's effects (fog, transparency, and mapping textures to surfaces), the most important chapter is "Picking," which discusses how to detect a user's interaction with OpenGL objects (i.e., detecting a user's selection and movement of an onscreen object). There are plenty of code snippets, and all the source code in the book can be found on the CD-ROM. However, the book completely lacks color pictures that demonstrate the results of the techniques, even though the chapters on lighting, textures, and special effects could've greatly benefited from them. Also, all the examples in the book use extremely primitive shapes and actions. Presumably, a talented programmer can extrapolate the viable info from the simple examples and build more sophisticated projects. With the proliferation of video display cards that support the OpenGL standard, applications built in popular development environments like Delphi can take advantage of real-time 3D graphics. This is a timely book, suitable for programmers with Delphi experience and some graphics programming experience who need to get a leg up on the Delphi/OpenGL learning curve. --Mike Caputo
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Product details
Paperback: 465 pages
Publisher: Wordware Publishing, Inc. (August 25, 1999)
Language: English
ISBN-10: 1556226578
ISBN-13: 978-1556226571
Product Dimensions:
7.5 x 1.4 x 9.3 inches
Shipping Weight: 2.3 pounds
Average Customer Review:
3.6 out of 5 stars
10 customer reviews
Amazon Best Sellers Rank:
#4,208,539 in Books (See Top 100 in Books)
In writing about such a complex subject as OpenGL, an author has two choices: start at the beginning and develop the basics, or assume the basics and show how to do the more complex but common usage. Delphi, a combination of Object Pascal and an IDE, is a wonderful development arena. Most developers are single users and not teams. Thus its is important to have a book that deals with the basics of OpenGL, one that assumes very little about graphics. This is such a book.Moreover, Jon Jacobs choose to document every line of code in his examples. With this there is a danger of losing concept in the details. He, however, does not because he has a knack of knowing and explaining the important parts of the code. This style is also means that the book builds upon the previous chapters; it becomes difficult to jump into the middle and try to understand what is going on. Thus this is a book to read from cover to cover, perhaps skimming parts, but not one to use as reference until one has read it.The author does a nice job on an advanced chapter on how to use the mouse to pick up objects and how to move them. This alone is worth the price of the book.There are two things missing from this book, the first is there is no explanation of pixel rendering, which is used to draw untextured images; and second, almost nothing on fonts. The latter is strange as one could easily encapsulate the basic text operations in a component and have a major addition to the book at little cost.If you are a Delphi Developer and interested in graphics for games or show, this book is an excellent place to start.-John_Mertus@Brown.EDU
First of all. This is a great book, where everything gets explained line by line, there is no way of not understanding a concept. This simplicity enables one to breeze through the book and get a general idea of how OpenGL works. Now, for those wanting to do something more sofisticated than working with 3D primitives and ugly textures, you will need something more, get for example the OpenGL Bible, the source code there is in C, but the OpenGL commands are the same ones, so translating C to Delphi is rather easy. I recommend looking within the Delphi OpenGL community for examples, which you learn to read and understand with the present book, you won't yearn for more, having these 3 ingredients for your OpenGL Delphi progies. Recommendation to the author, do a 2nd book with advanced examples, maybe a Quake like level editor and a basic Quake like game, which is definitely within reach for a volume 2, the Delphi community would *LOVE* you for that and heck I'd be the first to buy it. But anyway, I definitely love the book, it explained to me how OpenGL works, step by step.Two thumbs up.
I'm a Delphi expert who's been coding in Pascal since the days of TP6. I bought this book and John Ayres' new DirectX Exposed book at the same time. I'm doing a new gaming project in Delphi and wanted the best (actually the only) references on Delphi graphics programming available.This book is *by far* the better of the two books. It beats Ayres' book hands down. Where Ayres sticks to simple 2D sprite strawmen, this book gets into true, real-world examples -- the kinds of things you'd see in modern games.Also, this book is written much better -- I found it easier to follow and read through than Ayres' book. In fact, I eventually gave up on the Ayres book and have yet to finish it. Being able to convey difficult concepts in a conversational manner is no mean feat, yet the author pulls it off splendidly, something Ayres could really learn from.I highly recommend this book -- it is the best book on Delphi graphics programming on the planet.
The thing I like about this book is its attention to detail. I purchased it at the same time as I bought John Ayres book on graphics programming. This book puts Ayres' book to shame. It covers the essential topics thoroughly -- no stone is left unturned. Ayres' book, OTOH, covers 2D sprite games only -- what a waste of time! Also, this book is written quite well, if I may say so. The Ayres book isn't. Jacobs' explanations are lucid and to the point. I really liked this one and highly recommend it to anyone who's already familiar with the Win32 API but wants to learn graphics programming. I'd also recommend this book to Mr. Ayres. He could learn alot from it.
The book uses easy to understand sample applications that make learning a new function or process much easier. Jon has done a good job of covering a multitude of topics that are commonly used in game and graphics development. I believe that any OpenGL developer's library is not complete with out Jon's book.Now the down side. Their are a few topics that I had hoped to see in the book that where not covered, tings like transparent Textures and using shinny surfaces with Textures. In talking with Jon (Another good part, he is allways willing to help), though I have found the answers to the questions that I had.
I am adding my two cents worth just to offset the fool who gave this book only one star because he said "forget about Delphi". Delphi is by far the best development language there is, and I have programmed in many. This book is a good intro to programming OpenGL in the best damn development language on the planet.
I too disagree with the person who only gave this book one star! It is clearly written, with a nice balance of code examples (pleasantly highlighted in grey boxes on the printed page) and descriptive text, that starts at the beginning, taking you through the stuff you need to know with a style that shows empathy for the reader (all-too-rare in technical writing these days!). I like it. It's useful and pleasant to read.
Two-thirds of the book are code listings which can be found on CD. Some code does not produce the effect the author described. You poor guys have to bear and grin since this is the only book you can find about this subject. If you are a beginner for both Delphi and OpenGL, this book may be more or less helpful. I strongly recommend you to find useful info on the internet.
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