OpenGL Vertex Colors

[@CJBurkey]

You just taught me in 7 minutes what I struggled to grasp for half a year. Thank you.

[@ayodeledavidoluwatobi6760]

THANKS ALOT..... The concept is more clear to me now

[@inzomnia100]

Really enjoy these tutorial

[@JamieKingCS]

Thanks. Share with your graphics buddies.

[@srinathkumar1452]

So glad I found your videos. Thanks a lot

[@Lynxdom]

Your videos are wonderful! Thank you!

[@androidpronet]

You are the best really ❤️

[@maticmale4183]

Great videos. Thank you!

[@abdlwahdsa]

Thanks for the effort. :)

[@JamieKingCS]

And thank you!

[@koungmeng]

9:35 saved me!!! i switched the layout of the vertex attribute and i put the position at the 1 index and it all mess up and turn black. And i watch this video and found out that opengl think the 0 index is the position. so i need to write shader to tell opengl

[@my0punk535]

I wanted to ask but, how does OpenGL know to that the element array buffer is pointing to indices in the vertex buffer?

[@TheEternalHermit]

How come we don't want to use sizeof(float)? Would sizeof(GLfloat) be better or is sizeof() no good in general? Or is it best to just put in the actual number?

[@reishin4346]

First of, never would it be better to put in actual number. float today means 32bit but maybe on day in future it will mean 64bit and so on.. (for example int in the old days was 16bit) GLfloat is for a similar purpose, it's a portability deign. This way the GL library can make sure the float you use is a 32bit float, even say when you switch to a 64bit compiler.

[@derf6060]

GLfloat is simply a type def for float so you can use either or.

[@ghostbusterz]

Shouldn't it be sizeof(GLfloat) instead of sizeof(float)?

[@JamieKingCS]

+ghostbusterz Yep! Good catch!

[@pranaykarani4465]

+ghostbusterz Not needed actually, since GLfloat is just typdef to actual float. /* in glew.h */ typedef float GLfloat; Seems deceptive and stupid, but i guess its something related to support for different platforms/compliers.

[@JamieKingCS]

Pranay Karani If the typedef changed in different versions for whatever reason, my code would break. sizeof(Glfloat) is more robust.

[@pranaykarani4465]

+Jamie King hmm.. makes sense.

[@KadiNamamato]

why stride was zero before if there 2 floats from begging of first to beginning of second point? point = { +0.0f , +0.0f, //first +0.0f, +0.0f, // second };

[@JamieKingCS]

If you only have one attribute that is tightly packed, no stride necessary. Corner case. Weird I know.

[@KadiNamamato]

WOW, thanks for quick reply. I was still watching it. I understood it. Great tutorials, by the way.

[@JamieKingCS]

No prob.