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

Aqua•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

Aqua•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); ```

BloppyOP•1/4/23, 6:42 PM

here's the result

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

Aqua•1/4/23, 6:43 PM

wdym? its assuming T is

byte[]

byte[]

cause thats what it is lol

BBloppy here's the result

Aqua•1/4/23, 6:43 PM

this looks like an issue elsewhere

Aqua•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?

Aqua•1/4/23, 6:44 PM

nah

Aqua•1/4/23, 6:44 PM

its T

BloppyOP•1/4/23, 6:44 PM

I think not

Aqua•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

BloppyOP•1/4/23, 6:45 PM

you mean this method

BloppyOP•1/4/23, 6:45 PM

oh now I see

Aqua•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

uTexture

uTexture

in your shader before binding the texture, i would try that first)

BloppyOP•1/4/23, 6:48 PM

Oh wait

Aqua•1/4/23, 6:48 PM

ah
that was going to be my next question
yep you need to bind it before setting the data

BloppyOP•1/4/23, 6:48 PM

thx rollie

Aqua•1/4/23, 6:49 PM

BloppyOP•1/4/23, 6:49 PM

that helped me alot

flyke•1/5/23, 1:30 AM

After mentions here, I downloaded "Renderdoc" program, seems very useful. Never too late, learn something new

Lyris the Kitori•1/5/23, 4:51 AM

make sure to get the where-is-my-draw extension

Lyris the Kitori•1/5/23, 4:51 AM

its very useful

flyke•1/5/23, 6:45 AM

Thanks, I didnt know it has extentions, nothing about it on front page.

Fflyke After mentions here, I downloaded "Renderdoc" program, seems very useful. Never ...

Redhacker2•1/5/23, 8:42 AM

Helps solve

Redhacker2•1/5/23, 8:43 AM

Problems

Aqua•1/6/23, 9:25 PM

any reason why SilkMarshal stringtoptr requires you to manually free the memory when

fixed (byte* ptr = Encoding.UTF8.GetBytes("text"))
  // things with ptr

fixed (byte* ptr = Encoding.UTF8.GetBytes("text"))
  // things with ptr

works fine?

Aqua•1/6/23, 9:27 PM

cause im starting to wonder if this is not the right way of doing things
except i have been doing this for a long time now and have had 0 issues with it

Aqua•1/6/23, 9:45 PM

hm. been looking and seems like

public class Thing
{
  void* whatever;

  public Thing(byte[] stuff)
  {
    fixed (void* ptr = stuff)
      whatever = ptr;
  }
}

public class Thing
{
  void* whatever;

  public Thing(byte[] stuff)
  {
    fixed (void* ptr = stuff)
      whatever = ptr;
  }
}

isn't valid
i've had no problems with that
but i guess i've been lucky?
so if that's not valid
wtf are you supposed to do instead
or have i just confused myself

AAqua hm. been looking and seems like ```cs public class Thing { void* whatever; ...

TechPizza•1/6/23, 9:49 PM

GC handle? pass a pointer in?

Aqua•1/6/23, 9:49 PM

GC handle?

TechPizza•1/6/23, 9:49 PM

pin only when you need a pointer

AAqua GC handle?

TechPizza•1/6/23, 9:49 PM

GCHandle

TechPizza•1/6/23, 9:49 PM

long-term pinning managed memory is pretty bad though

Aqua•1/6/23, 9:50 PM

i don't need it much but its useful in certain situations
the struct needs to be

unmanaged

unmanaged

and so i just store a pointer

Aqua•1/6/23, 9:50 PM

gchandle doesn't look

unmanaged

unmanaged

...

TechPizza•1/6/23, 9:50 PM

GCHandle can be converted to and from IntPtr

Aqua•1/6/23, 9:51 PM

i see

Aqua•1/6/23, 9:51 PM

i suppose my question is

Aqua•1/6/23, 9:51 PM

what is the correct way to store a pointer as a field
because seemingly my method that has worked fine every single time is not the correct way of doing it