LLGL Aims To Be Abstraction Layer For OpenGL, Direct3D 11/12 & Vulkan

[starshipeleven]

But you're calling many Vk (or OGL) functions there, that does not seem low level to me.
By Low Level I'd assume something close to a 1:1 mapping.

The reverse would be to have many lower-level functions similar to Vulkan that run alone if offloading on Vk/DX12, or dump instructions/data in a bigger function to launch an OpenGL call later.

void lowLevelFunction{
(stuff)
if(vulkan)
     (offload on vulkan)
if(opengl)
    (offload on loaderOpenGL)
}

void loaderOpenGL{
(receiving stuff from lowLevelFunctions and storing it in a buffer)
if(received enough stuff)
     (offload to OpenGL)
}

[geearf]

The reverse would be to have many lower-level functions similar to Vulkan that run alone if offloading on Vk/DX12, or dump instructions/data in a bigger function to launch an OpenGL call later.

void lowLevelFunction{
(stuff)
if(vulkan)
(offload on vulkan)
if(opengl)
(offload on loaderOpenGL)
}

void loaderOpenGL{
(receiving stuff from lowLevelFunctions and storing it in a buffer)
if(received enough stuff)
(offload to OpenGL)
}

That would make sense.

[starshipeleven]

The guys who developed Vulkan are calling it an explicit API: "Vulkan is not “low level” – just a better abstraction of modern hardware." In some areas it looks "low-level" because of the explicit control, in others not so much. A draw call in Vulkan is still a draw call.

Vulkan is called "low level" the same as C is called "low level".
Neither is technically low-level (as the assebler is actual low-level), it's just that most other languages are MUCH higher level than that.

So yeah it's technically wrong, but it is a semplification to not have to explain too much things.

[starshipeleven]

As an AMD dev has put it: "D3D12/Vulkan were not invented to write a legacy API driver on top".

This allows to target both DX12 and Vulkan tho, possibly Metal if someone adds it.

it's not just a "run DX11/openGL on vulkan" api.

[timofonic]

How does this compare to Bgfx?

https://github.com/bkaradzic/bgfx

Anyone could opine about it?