The following lines show all the ways to access the same data: vec4 vector p are usually used for spatial coordinates of a texture, which we'll see in a later chapter.) You can also access the data in a vector by using the index position,, and. vec3 red = vec3(1.0,0.0,0.0) ĭefining color using an x, y and z notation can be confusing and misleading, right? That's why there are other ways to access this same information, but with different names. If you are familiar with object oriented programming paradigms you've probably noticed that we have been accessing the data inside the vectors like any regular C-like struct.
Before going further it's important to learn more about these variables and the subject of colors is a great way to find out more about them. We haven't much of a chance to talk about GLSL vector types.
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