so we can't answer that question

Machinarius•4/8/23, 2:13 PM

I've got a general OpenGL question: Does the

index in https://github.com/dotnet/Silk.NET/blob/main/examples/CSharp/OpenGL%20Tutorials/Tutorial%201.3%20-%20Abstractions/Program.cs#L69 mean we are telling OpenGL how to interpret the first buffer that was bound to the VAO?

GitHub

Silk.NET/Program.cs at main · dotnet/Silk.NET

The high-speed OpenGL, OpenCL, OpenAL, OpenXR, GLFW, SDL, Vulkan, Assimp, WebGPU, and DirectX bindings library your mother warned you about. - Silk.NET/Program.cs at main · dotnet/Silk.NET

Aqua•4/8/23, 2:13 PM

the first or the last 0? the first 0 refers to the location in the shader

Furball•4/8/23, 2:13 PM

%disclaimer

Volte•4/8/23, 2:13 PM

We’re happy to answer any questions you might have when using Silk.NET! You can count on us for answering Silk.NET-specific questions, and being a first port of call for help using our bindings, but we’re not experts in everything so we may redirect you to a more specialised resource for API-specific info. Of course we will help where we can though, so try us and ask away!

Requested by Furball#4119.

PPerksey so we can't answer that question

أمير الدخميسي•4/8/23, 2:13 PM

oh thanks

Aqua•4/8/23, 2:13 PM

the last 0 refers to the offset

Machinarius•4/8/23, 2:14 PM

Yeah, the first param indexindex has a hard-coded 0

Aqua•4/8/23, 2:14 PM

yep that's the location in the shader

Aqua•4/8/23, 2:14 PM

so in the shader where you see layout (location = 0)layout (location = 0), this is what this value is referring to

Machinarius•4/8/23, 2:15 PM

Ohhh that makes a ton more sense!

PerkseyOP•4/8/23, 2:16 PM

VertexAttribPointer is a horrible function, but yeah it's basically telling OpenGL what the layout of your shader is

Machinarius•4/8/23, 2:16 PM

Basically it's telling OpenGL how to pass individual bits data to the vertex shader?

Aqua•4/8/23, 2:17 PM

Have you read the tutorial on the website? It goes over this in detail https://dotnet.github.io/Silk.NET/docs/opengl/c1/2-hello-quad.html#setting-up-the-attributes

Machinarius•4/8/23, 2:17 PM

Nope. Reading that now, thank you

Machinarius•4/8/23, 2:24 PM

I've been wondering if as a complete noob to 3d graphics I should learn OGL first or go straight into vulkan? Just doing this for fun, don't intend to switch careers into game-dev

Aqua•4/8/23, 2:24 PM

opengl

Furball•4/8/23, 2:24 PM

dont do vulkan

Aqua•4/8/23, 2:24 PM

vulkan will scare you away and you will never want to touch it again

Furball•4/8/23, 2:24 PM

you will quit before you get even a clear color going

PerkseyOP•4/8/23, 2:25 PM

not even AAA devs want to do vulkan

PerkseyOP•4/8/23, 2:25 PM

and they're the ones it's designed for

Furball•4/8/23, 2:25 PM

do opengl or d3d11

Machinarius•4/8/23, 2:25 PM

Heard it loud and clear 4523_JerryLaugh

No Vulkan

Furball•4/8/23, 2:25 PM

d3d11 is saner than opengl imo but it has the issue of kinda being windows specific

Howie•4/8/23, 2:26 PM

I thought I knew my stuff with ThreeJS, which is a high level wrapper around OpenGL. Then I tried Vulkan and failed twice. Spent some time learning raw OpenGL (in Silk.NET) and now I'm working in Vulkan after a LOT of pain and suffering.

Howie•4/8/23, 2:26 PM

Definitely start with OpenGL....

Furball•4/8/23, 2:26 PM

dxvk exists but idk if the developer experience on linux would be great

FFurball d3d11 is saner than opengl imo but it has the issue of kinda being windows speci...

Machinarius•4/8/23, 2:26 PM

I wonder if D3D11 + DXVK would be easier then?

Aqua•4/8/23, 2:26 PM

there is also my pie abstraction layer that has a similar API to dx11 but runs on both opengl + dx11 so its fully cross platform

Machinarius•4/8/23, 2:26 PM

I imagine I'd have to run my dotnet code through Wine/mono to get DXVK tho?

Furball•4/8/23, 2:27 PM

dxvk alone would be enough iirc

Furball•4/8/23, 2:27 PM

im pretty sure you lose the ability to debug with renderdoc though

Furball•4/8/23, 2:27 PM

or you have to debug but still partially have to know what vulkan does

PerkseyOP•4/8/23, 2:27 PM

yeah d3d11 is best developed on windows, as at least you know your code works against the real thing before brining dxvk in the loop

PerkseyOP•4/8/23, 2:28 PM

but dxvk pretty much works ootb with silk.net 2.17, no mono/wine needed

Machinarius•4/8/23, 2:28 PM

Gotcha. For now I'll stick to opengl and take it easy, baby-steps

PerkseyOP•4/8/23, 2:28 PM

yeah fair

PerkseyOP•4/8/23, 2:29 PM

if you do want to give yourself a little treat you could use OpenGL 4.5, the glNamed* functions are very nice to use

Howie•4/8/23, 2:29 PM

I definitely agree with that, they are super nice

Furball•4/8/23, 2:29 PM

but also come with the issue that renderdoc absolutely hates DSA

PerkseyOP•4/8/23, 2:29 PM

did not know that

PerkseyOP•4/8/23, 2:29 PM

that sucks

Howie•4/8/23, 2:29 PM

oof

Furball•4/8/23, 2:29 PM

beyley had issues with that

Furball•4/8/23, 2:29 PM

people in the GP server had issues

Furball•4/8/23, 2:29 PM

and apperantly its known and baldurk doesnt wanna bother or smth

PerkseyOP•4/8/23, 2:30 PM

Howie•4/8/23, 2:30 PM

the DSA stuff does get you a little better prepped for Vulkan imo

PerkseyOP•4/8/23, 2:30 PM

it also just makes OpenGL better to use as well

PerkseyOP•4/8/23, 2:31 PM

i die everytime i need to do a glBind*

so we can't answer that question

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