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Irodori.Windowing.Sdl2 0.0.8

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irodori

means "to color" in Japanese

a rendering library written in C#

install

dotnet package add Irodori
dotnet package add Irodori.Backend.OpenGL
dotnet package add Irodori.Windowing.Sdl2

features

• easy to use & simple
  • just a few lines to create a window and render something
• null safety
  • no null reference exceptions!
• type strict
  • minimum implicit conversions, most things are explicit.
• zero throws
  • no exceptions thrown during runtime by the library. don't worry about unexpected crashes.
  • use IrodoriReturn to handle errors explicitly.
• NativeAOT ready
  • zero reflection, works with NativeAOT

minimal example

window

using Irodori;
// ...

var gfx = Gfx<OpenGlBackend, SdlWindow>.Create()
 .WithBackend(new OpenGlBackend())
 .WithWindowing(new Sdl2Windowing())
 .WithWindowConfig(new Window.InitConfig
 {
 Title = "SampleDraw",
 Width = 1280,
 Height = 720,
 Resizable = false
 })
 .Init()
 .Unwrap();

while (!gfx.Window.ShouldClose)
{
 gfx.Window.PollEvents();
 gfx.Clear(Color.CornflowerBlue);
 gfx.Window.SwapBuffers();
}

triangle

string vshCode = @"
#version 330 core
layout(location = 0) in vec3 aPos;
layout(location = 1) in vec3 aColor;

out vec3 ourColor;

void main()
{
 gl_Position = vec4(aPos, 1.0);
 ourColor = aColor;
}
";

string fshCode = @"
#version 330 core
out vec4 FragColor;
in vec3 ourColor;

uniform float factor;

void main()
{
 FragColor = vec4(ourColor, 1.0) * factor;
}
";
 
var gfx = Gfx<OpenGlBackend, SdlWindow>.Create()
 .WithBackend(new OpenGlBackend())
 .WithWindowing(new Sdl2Windowing())
 .WithWindowConfig(new Window.InitConfig
 {
 Title = "SampleDraw",
 Width = 1280,
 Height = 720,
 Resizable = false
 })
 .Init()
 .Unwrap();

var vsh = gfx.CreateShader(EShaderType.Vertex, vshCode)
 .Compile()
 .Unwrap();
var fsh = gfx.CreateShader(EShaderType.Fragment, fshCode)
 .Compile()
 .Unwrap();
var prog = gfx.CreateShaderProgram()
 .AttachShader(vsh)
 .AttachShader(fsh)
 .Link()
 .Unwrap();

vsh.Dispose();
fsh.Dispose();

var vertexData = VertexData.Create<Vector3, Vector3>()
 .AddVertex(new Vector3(-0.5f, -0.5f, 0.0f), new Vector3(0.0f, 0.0f, 1.0f))
 .AddVertex(new Vector3(0.5f, -0.5f, 0.0f), new Vector3(0.0f, 1.0f, 0.0f))
 .AddVertex(new Vector3(0.0f, 0.5f, 0.0f), new Vector3(1.0f, 0.0f, 0.0f));

var vertexBuffer = gfx.CreateVertexBuffer(VertexBufferFormat.Create()
 .AddAttrib(VertexBufferFormat.Attrib.Vector3())
 .AddAttrib(VertexBufferFormat.Attrib.Vector3()))
 .Upload(vertexData)
 .Unwrap();

float t = 0;

while (!gfx.Window.ShouldClose)
{
 gfx.Window.PollEvents();
 gfx.Clear(Color.CornflowerBlue);

 prog.SetFloat("factor", (MathF.Sin(t) + 1) / 2.0f); // Flicker effect
 vertexBuffer.Draw(prog);

 t += 0.1f;
 gfx.Window.SwapBuffers();
}

supported backends

• opengl
• vulkan
• direct3d 11
• direct3d 12
• metal
• webgl
• webgpu