c# - 3D 视口到 2D 图像

Question

所以这是我非常简单的光线追踪器的视口类。

public sealed class ViewPort
{
    public readonly Rectangle3D Rectangle;

    public readonly int Width;
    public readonly int Height;

    public Bitmap Image { get; private set; }

    public ViewPort(Rectangle3D rec, int width, int height)
    {
        this.Rectangle = rec;

        this.Width = width;
        this.Height = height;

        this.Image = new Bitmap(this.Width, this.Height);
    }

    public bool TryRecord(Ray ray)
    {
        Point3D cross;
        if (this.Rectangle.Intersect(ray, out cross))
        {
            this.Image.SetPixel(cross...,ray.Light);
        }
        else
        {
            return false;
        }
    }
}

好的，现在如何将 3 维点映射到二维图像？非常感谢您的帮助。谢谢你。

Answer 1

像往常一样，最好是查看 Scratchapixel.com，它详细解释了所有这些概念。我相信在网络上进行一些搜索会为您指出这个惊人的资源：

http://scratchapixel.com/lessons/3d-basic-lessons/lesson-1-writing-a-simple-raytracer/