From 2c8c9b790df96e873ad3d5f5935941eef9c7ae09 Mon Sep 17 00:00:00 2001 From: Isaac Halvorson Date: Mon, 7 Nov 2016 16:45:43 -0600 Subject: [PATCH] Fixed a small typo Original sentence: "Each pipe is also known as thread." Corrected sentence: "Each pipe is also known as a thread." --- 01/README.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/01/README.md b/01/README.md index 47880a6..50b4f4e 100644 --- a/01/README.md +++ b/01/README.md @@ -15,7 +15,7 @@ Shaders are also a set of instructions, but the instructions are excecuted all a To answer this, I present the wonders of *parallel processing*. -Imagine the CPU of your computer as a big industrial pipe, and every task as something that passes through it - like a factory line. Some tasks are bigger than others, which means they require more time and energy to deal with. We say they require more processing power. Because of the architecture of computers the jobs are forced to run in a series; each job has to be finished one at a time. Modern computers usually have groups of four processors that work like these pipes, completing tasks one after another to keeping things running smoothly. Each pipe is also known as *thread*. +Imagine the CPU of your computer as a big industrial pipe, and every task as something that passes through it - like a factory line. Some tasks are bigger than others, which means they require more time and energy to deal with. We say they require more processing power. Because of the architecture of computers the jobs are forced to run in a series; each job has to be finished one at a time. Modern computers usually have groups of four processors that work like these pipes, completing tasks one after another to keeping things running smoothly. Each pipe is also known as a *thread*. ![CPU](00.jpeg) @@ -45,4 +45,4 @@ In order to run in parallel every pipe, or thread, has to be independent from ev Also the GPU keeps the parallel micro-processor (the pipes) constantly busy; as soon as they get free they receive new information to process. It's impossible for a thread to know what it was doing in the previous moment. It could be drawing a button from the UI of the operating system, then rendering a portion of sky in a game, then displaying the text of an email. Each thread is not just **blind** but also **memoryless**. Besides the abstraction required to code a general function that changes the result pixel by pixel depending on its position, the blind and memoryless constraints make shaders not very popular among beginning programmers. -Don't worry! In the following chapters, we will learn step-by-step how to go from simple to advanced shading computations. If you are reading this with a modern browser, you will appreciate playing with the interactive examples. So let's not delay the fun any longer and press *Next >>* to jump into the code! \ No newline at end of file +Don't worry! In the following chapters, we will learn step-by-step how to go from simple to advanced shading computations. If you are reading this with a modern browser, you will appreciate playing with the interactive examples. So let's not delay the fun any longer and press *Next >>* to jump into the code!