Files
voxel/Texture.cs

43 lines
1.5 KiB
C#

using OpenTK.Graphics.OpenGL4;
using StbImageSharp;
namespace Voxel
{
public class Texture
{
private int _handle;
private string _path;
public Texture(string path)
{
_handle = GL.GenTexture();
_path = path;
LoadFromFile();
}
private void LoadFromFile()
{
StbImage.stbi_set_flip_vertically_on_load(1);
ImageResult image = ImageResult.FromStream(File.OpenRead(_path), ColorComponents.RedGreenBlueAlpha);
GL.BindTexture(TextureTarget.Texture2D, _handle);
GL.TexImage2D(
TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba,
image.Width, image.Height, 0,
PixelFormat.Rgba, PixelType.UnsignedByte, image.Data
);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Nearest);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Nearest);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
}
public void Bind(TextureUnit unit = TextureUnit.Texture0)
{
GL.ActiveTexture(unit);
GL.BindTexture(TextureTarget.Texture2D, _handle);
}
}
}