OpenGL Vertex and Fragment Shaders

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Discusses pipeline and how vertex shaders and fragment shaders work to fill the color of each pixel in a rasterized image.

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The pace of these videos is perfect for beginners. For people who are new to OpenGL, each concept has to be explained properly to be sufficiently understood. Most OpenGL tutorials on YouTube skip over a lot of the details so I can only thank you for bucking that trend and taking the time to explain things properly.

ryancov

Vertex Shader: Position and Custom data.
Fragment Shader: RGB color.

larrybai

great video, great tone, great explanation. THanks.

gubearium

At 6:18 you meant that the fragment shader runs on the GPU, not on the CPU. Thanks for the videos!

polgomez

easy to understand tutorial thanks and keep more and more ogl tutorials

drmay

Very nice style of explanation. I wish there is something like this for Skia.

marinekamlesh

what is the name of this drawing tool that you're using?

vexedev

Would be nice if the videos had numbers xD

But nice so far, you explain very slowly and understandable, just sometimes a bit boring if you repeat too often :D

ochgottnochma

Hi +Jamie King,
If i define verts[] = {color(3 floats), position(2 floats), color, position, color, }
and then i call glEnableVertexAttribArray(0) ----> //attribute 0 for color
glEnableVertexAttribArray(1) ----> // attribute 1 for position

Does the code for the indices[] remain the same ?

If bit confused, how does the glDrawElements() is picking the position ?

chaluvadi

are these examples available on github? thanks

sansapps

I believe it is the snipping tool on windows

MichaelMitchellM

holy shit is trent reznor doing shader tutorials on youtube?

dickheadrecs

perhaps this shader piece will help you:

const char* vertexShaderCode =
"#version 330\r\n"
"layout(location=0) in vec2 position;"
"void main()"
"{"
" gl_Position = vec4(position, 0.0, 1.0);"
"}";

const char* fragmentShaderCode =
"#version 330\r\n"
"out vec4 daColor;"
"void main()"
"{"
" daColor = vec4(0.0, 1.0, 0.0, 1.0);"
"}";

I think the problem is the opengl verion...perhaps....

alexathlan

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