• Announcements

    • khawk

      Download the Game Design and Indie Game Marketing Freebook   07/19/17

      GameDev.net and CRC Press have teamed up to bring a free ebook of content curated from top titles published by CRC Press. The freebook, Practices of Game Design & Indie Game Marketing, includes chapters from The Art of Game Design: A Book of Lenses, A Practical Guide to Indie Game Marketing, and An Architectural Approach to Level Design. The GameDev.net FreeBook is relevant to game designers, developers, and those interested in learning more about the challenges in game development. We know game development can be a tough discipline and business, so we picked several chapters from CRC Press titles that we thought would be of interest to you, the GameDev.net audience, in your journey to design, develop, and market your next game. The free ebook is available through CRC Press by clicking here. The Curated Books The Art of Game Design: A Book of Lenses, Second Edition, by Jesse Schell Presents 100+ sets of questions, or different lenses, for viewing a game’s design, encompassing diverse fields such as psychology, architecture, music, film, software engineering, theme park design, mathematics, anthropology, and more. Written by one of the world's top game designers, this book describes the deepest and most fundamental principles of game design, demonstrating how tactics used in board, card, and athletic games also work in video games. It provides practical instruction on creating world-class games that will be played again and again. View it here. A Practical Guide to Indie Game Marketing, by Joel Dreskin Marketing is an essential but too frequently overlooked or minimized component of the release plan for indie games. A Practical Guide to Indie Game Marketing provides you with the tools needed to build visibility and sell your indie games. With special focus on those developers with small budgets and limited staff and resources, this book is packed with tangible recommendations and techniques that you can put to use immediately. As a seasoned professional of the indie game arena, author Joel Dreskin gives you insight into practical, real-world experiences of marketing numerous successful games and also provides stories of the failures. View it here. An Architectural Approach to Level Design This is one of the first books to integrate architectural and spatial design theory with the field of level design. The book presents architectural techniques and theories for level designers to use in their own work. It connects architecture and level design in different ways that address the practical elements of how designers construct space and the experiential elements of how and why humans interact with this space. Throughout the text, readers learn skills for spatial layout, evoking emotion through gamespaces, and creating better levels through architectural theory. View it here. Learn more and download the ebook by clicking here. Did you know? GameDev.net and CRC Press also recently teamed up to bring GDNet+ Members up to a 20% discount on all CRC Press books. Learn more about this and other benefits here.
Sign in to follow this  
Followers 0
Shane Thompson

Issue learning OpenGL

0 posts in this topic

Hi guys,

Recently I came across a site (a sub-domain of this) which contains some (rather old-ish) tutorials on OpenGL.
I am doing this tutorial: [url="http://nehe.gamedev.net/tutorial/your_first_polygon/13002/"]http://nehe.gamedev...._polygon/13002/[/url]
which is an extension upon the last. I had no issues with the last. However I get to tutorial 2 and it does not draw.

Here is what I believe is the relevant code:


[CODE]
int DrawGLScene(GLvoid) { // Here's where we do all the drawing
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear the screen and the depth buffer
glMatrixMode(GL_PROJECTION); // I found some pages said I should do this?
glLoadIdentity(); // Reset the current Modelview Matrix

glTranslatef(1.5, 0.0, 6.0); // Move left 1.5 and back 6.0

glBegin(GL_TRIANGLES); // Draw using triangles
glVertex3f( 0.0f, 1.0f, 0.0f); // Top
glVertex3f(-1.0f, -1.0f, 0.0f); // Bottom left
glVertex3f( 1.0f, -1.0f, 0.0f); // Bottom right
glEnd(); // Finished the triangle

glBegin(GL_QUADS); // Draw using squares
glVertex3f(-1.0f, 1.0f, 0.0f); // Top left
glVertex3f( 1.0f, 1.0f, 0.0f); // Top right
glVertex3f( 1.0f, -1.0f, 0.0f); // Bottom right
glVertex3f(-1.0f, -1.0f, 0.0f); // Bottom left
glEnd(); // Finished the square

return true; // Everything went OK.
}[/CODE]

It simply appears to do nothing. I have been googling around, however there does not seem to be that much information on it, or I am looking in the wrong place. I can confirm this function is being run - I placed a breakpoint in the function and it breaks fine.

However all I am presented with is a blank screen.
Any tips?

Thanks,
shanept

[b]EDIT[/b]
I have gone through my code again and have found my errors. They were simply a few positive numbers where they should have been negative, and a missing translate between the two objects. Edited by shanept
0

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0