Question

I have a question - I am learning OpenGL ES 2.0 from this tutorial and moving across this website, I have build nice app, with spinning polygon. I find another guide where he used vertex shaders. What are the differences between them. What else I can make with shaders?

Answer 1

不同的是,第一部教学法使用开放式信用证ES1.1,第2项使用开放式信用证ES2.0。 1.1 采用固定运行管道进行其所有投放,2.0只使用砂子。

所有这些矩阵功能? 冰川、冰川、冰川? 他们又回到2.0岁。相反,你写出一个在万国邮联本身执行的方案。负责改变垂直位置的梯子被称为“垂直沙”。

So the vertex shader replaces all of the automatic matrix transforms with a much more flexible, user-driven, computation system.

Answer 2

简言之,开放的GL ES 1.1(因此)更容易进入,而开放式的GL ES 2.0则更加灵活,可能更快一些。在1.1月份,你可以做一些事情。

OpenGL ES 1.1 and 2.0 are completely mutually incompatible, so choose wisely.

那里的学习量比2.0%高出很多。

Answer 3

From my understanding of it, Vertices are representations of points on the 3D things you render, while Vertex Shaders are a means to temporarily modify a Vertex before rendering. Vertex Shaders run on your video card (gpu), so you can perform many actions in parallel (e.g. perform the same function on all of the vertices in your scene)- this takes a lot of burden off of your cpu.

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