Skip to Content
GLSL Essentials
book

GLSL Essentials

by Jacobo Rodriguez
December 2013
Intermediate to advanced
116 pages
2h 15m
English
Packt Publishing
Content preview from GLSL Essentials

Inputs and outputs

Besides the usual inputs and outputs (uniforms and vertex attributes), there are new elements that need to be considered.

Primitives, our main input and output element, are complex, and because of that we have to be careful and specify very well what we are doing at each time. The primitive type specified in the geometry shader must match exactly with the primitive that we are drawing (using a GL call like glDrawArrays, for instance). This means that we cannot happily write a general purpose geometry shader for everything. Also, we have to specify the primitive type and the number of vertices that will be emitted (created) statically in the shader.

For these purposes, we have the layout keyword. With it, we could define an input ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

OpenGL and GLSL Fundamentals with C++ (practical course)

OpenGL and GLSL Fundamentals with C++ (practical course)

Sergiy Kravchenko
OpenGL ES 3.0 Programming Guide, Second Edition

OpenGL ES 3.0 Programming Guide, Second Edition

Dan Ginsburg, Budirijanto Purnomo, Dave Shreiner, Aaftab Munshi
OpenGL SuperBible: Comprehensive Tutorial and Reference, Seventh Edition

OpenGL SuperBible: Comprehensive Tutorial and Reference, Seventh Edition

Graham Sellers, Richard S. Wright Jr., Nicholas Haemel

Publisher Resources

ISBN: 9781849698009Other