public AxisPreview(KauWindow window, int size = 60, int border = 25)
{
this.size = size;
this.border = border;
Events.WindowResize += OnResize;
OnResize(window);
using (var loader = new KauRock.Loaders.Shader()) {
loader.AddRaw("axis-preview.vert", vertShader, ShaderType.VertexShader);
loader.AddRaw("axis-preview.frag", fragShader, ShaderType.FragmentShader);
shader = loader.Load("axis-preview.vert", "axis-preview.frag");
}
vertexArray = GL.GenVertexArray();
vertexBuffer = GL.GenBuffer();
elementBuffer = GL.GenBuffer();
GL.BindVertexArray(vertexArray);
GL.BindBuffer(BufferTarget.ArrayBuffer, vertexBuffer);
GL.BufferData(BufferTarget.ArrayBuffer, sizeof(float) * verts.Length, verts, BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, elementBuffer);
GL.BufferData(BufferTarget.ElementArrayBuffer, sizeof(uint) * tris.Length, tris, BufferUsageHint.StaticDraw);
int stride = sizeof(float) * 6;
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, stride, 0);
GL.EnableVertexAttribArray(0);
GL.VertexAttribPointer(1, 3, VertexAttribPointerType.Float, false, stride, stride / 2);
GL.EnableVertexAttribArray(1);
}
private void OnResize(KauWindow window)
{
scale = new Vector3(size / (float)window.Width, size / (float)window.Height, 1f);
translation = new Vector3(
(window.Width - (size + border)) / ((float)window.Width),
(window.Height - (size + border)) / ((float)window.Height),
0);
}