it's not perfect and it doesn't support animations but i use it to load meshes in my engine <https:/

it's not perfect and it doesn't support animations but i use it to load meshes in my engine https://github.com/piegfx/Easel/blob/master/Easel/Utilities/Mesh.cs
i would normally say about the GPL license but i stole this from learnopengl so

flyke•1/4/23, 1:08 AM

I'm looking for solution how to use animated models, and found only mention of Assimp library, so started to dig it.

AquaOP•1/4/23, 1:09 AM

learnopengl has a tutorial on animating meshes loaded with assimp https://learnopengl.com/Guest-Articles/2020/Skeletal-Animation
its skeletal yes but it should apply to anything

AAqua it's not perfect and it doesn't support animations but i use it to load meshes i...

flyke•1/4/23, 1:09 AM

Thanks, at least will know how to load cubes

flyke•1/4/23, 1:10 AM

So with Silk.Net we just go to learnopengl, look their examples and write the same on C#?

AAqua learnopengl has a tutorial on animating meshes loaded with assimp <https://learn...

AquaOP•1/4/23, 1:11 AM

oof, yikes, not a fan of this one.
it's one of those "copy the code and don't question what it does" which i so desperately try to avoid in my tutorials

Fflyke So with Silk.Net we just go to learnopengl, look their examples and write the s...

Lyris the Kitori•1/4/23, 1:11 AM

we have examples, but not for assimp to my knowledge

Fflyke So with Silk.Net we just go to learnopengl, look their examples and write the s...

AquaOP•1/4/23, 1:12 AM

assimp is a C++ library which makes working with it in silk a bit different since it uses the C bindings for it. it can pretty easily be translated over though with some guesswork, like i did

LLyris the Kitori we have examples, but not for assimp to my knowledge

AquaOP•1/4/23, 1:12 AM

i believe there is a PR for an assimp tutorial currently open

Lyris the Kitori•1/4/23, 1:13 AM

LLyris the Kitori we have examples, but not for assimp to my knowledge

flyke•1/4/23, 1:13 AM

Examples with animated model? Maybe I missed it, didnt find. Will look again.

AquaOP•1/4/23, 1:14 AM

https://github.com/dotnet/Silk.NET/pull/1161 yep. this looks pretty good, and a straight port of the learnopengl one instead of my messy mesh system

Fflyke Examples with animated model? Maybe I missed it, didnt find. Will look again.

Lyris the Kitori•1/4/23, 1:14 AM

no not for animated models

Lyris the Kitori•1/4/23, 1:14 AM

just for silk in general

flyke•1/4/23, 1:17 AM

Thanks, this one is enough to start, https://github.com/dotnet/Silk.NET/pull/1161

flyke•1/4/23, 1:20 AM

And for skeletal deformation we use vertex shader? (This part is total unknown for me, so want to be sure that I'm moving in right direction)

AAqua it's not perfect and it doesn't support animations but i use it to load meshes i...

Redhacker2•1/4/23, 1:32 AM

Haha well I have one as well as well as my little wrapper thing as far as pulling mesh data out, no animations though

Bloppy•1/4/23, 6:39 PM

well I just wrote this code for loading an image as a texture, but the code responds with error cs8377. And I don't know the solution for this situation.

Lyris the Kitori•1/4/23, 6:40 PM

what is img.Data

Bloppy•1/4/23, 6:40 PM

I am using StbImageSharp

Lyris the Kitori•1/4/23, 6:40 PM

that error implies it's a 2d array

AquaOP•1/4/23, 6:40 PM

you must use fixedfixed on the image data

Bloppy•1/4/23, 6:41 PM

so apparently img.data I was using as a parameter is a 2d array right?

AquaOP•1/4/23, 6:41 PM

fixed (byte* ptr = img.Data)
  _gl.TexImage2D(..., ptr);

fixed (byte* ptr = img.Data)
  _gl.TexImage2D(..., ptr);

BBloppy so apparently img.data I was using as a parameter is a 2d array right?

Lyris the Kitori•1/4/23, 6:41 PM

maybe? idk i've never used it, look at it

AquaOP•1/4/23, 6:41 PM

img.data is a byte array

Lyris the Kitori•1/4/23, 6:41 PM

Lyris the Kitori•1/4/23, 6:42 PM

wait why is the inferred type parameter byte[] then

AAqua ```cs fixed (byte* ptr = img.Data) _gl.TexImage2D(..., ptr); ```

Bloppy•1/4/23, 6:42 PM

here's the result

LLyris the Kitori wait why is the inferred type parameter byte[] then

AquaOP•1/4/23, 6:43 PM

wdym? its assuming T is

byte[]

byte[]

cause thats what it is lol

BBloppy here's the result

AquaOP•1/4/23, 6:43 PM

this looks like an issue elsewhere

AquaOP•1/4/23, 6:43 PM

are you setting the texture before drawing?

AAqua wdym? its assuming T is `byte[]` cause thats what it is lol

Lyris the Kitori•1/4/23, 6:43 PM

well surely the function parameter of that overload is T[] not T, right?

AquaOP•1/4/23, 6:44 PM

nah

AquaOP•1/4/23, 6:44 PM

its T

Bloppy•1/4/23, 6:44 PM

I think not

AquaOP•1/4/23, 6:44 PM

_texture.Bind()_texture.Bind() should be it

AAqua its T

Lyris the Kitori•1/4/23, 6:44 PM

Bloppy•1/4/23, 6:45 PM

you mean this method

Bloppy•1/4/23, 6:45 PM

oh now I see

AquaOP•1/4/23, 6:45 PM

yeah, that will bind it
check in renderdoc to see if the texture has been created correctly, this looks like it could be a shader issue (also you should set uTextureuTexture in your shader before binding the texture, i would try that first)

Bloppy•1/4/23, 6:48 PM

Oh wait