c# 中用dircetx绘制球体

Question

谢谢指教，新手

Answer 1

再介绍一个Net游戏开发引擎

Answer 2

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;using Microsoft.DirectX;
using Microsoft.DirectX.Direct3D;
namespace MeshExample
{
    public partial class Form1 : Form
    {        private Device device = null;
        private Mesh boxMesh = null;
        private Mesh cylinderMesh = null;
        private Mesh polygonMesh = null;
        private Mesh sphereMesh = null;
        private Mesh teapotMesh = null;
        private Mesh torusMesh = null;
        private Mesh textMesh = null;
        private Microsoft.DirectX.Direct3D.Font d3dfont;
        private string helpString;
        private bool showHelpString = true;
        private float angle = 0.0f;
        private int rotatorXYZ = 0;
        private bool enableRotator = true;
        private bool enableCullMode = false;
        private bool enableSolidMode = false;        public Form1()
        {
            InitializeComponent();
        }
        public bool InitializeGraphics()
        {
            try
            {
                PresentParameters presentParams = new PresentParameters();
                presentParams.Windowed = true;
                presentParams.SwapEffect = SwapEffect.Discard;
                device = new Device(0, DeviceType.Hardware, this,
                    CreateFlags.SoftwareVertexProcessing, presentParams);
                return true;
            }
            catch (DirectXException)
            {
                return false;
            }
        }
        private void SetupCamera()
        {
            float fieldOfView = (float)Math.PI / 4;
            float aspectRatio = this.Width / this.Height;
            float nearPlane = 1.0f;
            float farPlane = 100.0f;
            device.Transform.Projection =
                Matrix.PerspectiveFovLH(fieldOfView, aspectRatio, nearPlane, farPlane);
            Vector3 cameraPosition = new Vector3(0, 0, -18.0f);
            Vector3 cameraTarget = new Vector3(0, 0, 0);
            Vector3 upDirection = new Vector3(0, 1, 0);
            device.Transform.View = Matrix.LookAtLH(cameraPosition, cameraTarget, upDirection);
            device.RenderState.Lighting = false;
            device.RenderState.CullMode = (enableCullMode ? Cull.CounterClockwise : Cull.None);
            device.RenderState.FillMode = (enableSolidMode ? FillMode.Solid : FillMode.WireFrame);
        }
        private void SetWorldTransform(float x, float y, float z)
        {
            Vector3 world;
            if (rotatorXYZ == 0)
            {
                world = new Vector3(angle, 0, 0);
            }
            else if (rotatorXYZ == 1)
            {
                world = new Vector3(0, angle, 0);
            }
            else
            {
                world = new Vector3(0, 0, angle);
            }
            device.Transform.World = Matrix.RotationAxis(world, angle) * Matrix.Translation(x, y, z);
            if (enableRotator == true)
            {
                angle += 0.03f / (float)Math.PI;
            }
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            this.Width = 575;
            this.Height = 475;
            this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.Opaque, true);
            this.KeyPreview = true;
            helpString = "<Esc>：退出\n\n\n" +
                "<F1>：显示/隐藏提示信息\n" +
                "<F2>：实心/线框\n" +
                "<F3>：旋转/不旋转\n" +
                "<F4>：旋转轴（x轴、y轴、z轴）\n" +
                "<F5>：背景剔除/不剔除\n\n";
            System.Drawing.Font winFont = new System.Drawing.Font("宋体", 9, FontStyle.Regular);
            d3dfont = new Microsoft.DirectX.Direct3D.Font(device, winFont);
            d3dfont.PreloadText(helpString);
            textMesh = Mesh.TextFromFont(
               device, new System.Drawing.Font("宋体", 12), "Mesh对象展示", 1.0f, 0.3f);
            boxMesh = Mesh.Box(device, 2.0f, 2.0f, 2.0f);
            cylinderMesh = Mesh.Cylinder(device, 1.0f, 0.5f, 2.0f, 10, 10);
            polygonMesh = Mesh.Polygon(device, 0.4f, 20);
            sphereMesh = Mesh.Sphere(device, 1.0f, 20, 10);
            teapotMesh = Mesh.Teapot(device);
            torusMesh = Mesh.Torus(device, 0.3f, 1.0f, 20, 20);        }        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            SetupCamera();
            device.Clear(ClearFlags.Target , Color.DarkSeaGreen, 1.0f, 0);
            device.BeginScene();
            // 绘制文本
            SetWorldTransform(0, 5, 0);
            textMesh.DrawSubset(0);
            // 绘制立方体
            SetWorldTransform(-5, 0, 0);
            boxMesh.DrawSubset(0);
            // 绘制圆筒
            SetWorldTransform(0, 0, 0);
            cylinderMesh.DrawSubset(0);
            // 绘制多边形
            SetWorldTransform(5, 0, 0);
            polygonMesh.DrawSubset(0);
            // 绘制球形
            SetWorldTransform(-5, -5, 0);
            sphereMesh.DrawSubset(0);
            // 绘制茶壶
            SetWorldTransform(0, -5, 0);
            teapotMesh.DrawSubset(0);
            // 绘制圆环
            SetWorldTransform(5, -5, 0);
            torusMesh.DrawSubset(0);
            if (showHelpString == true)
            {
                d3dfont.DrawText(null, helpString, 25, 30, Color.Tomato);
            }
            device.EndScene();
            device.Present();
            if (WindowState != FormWindowState.Minimized)
            {
                this.Invalidate();
            }        }        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            switch (e.KeyCode)
            {
                case Keys.Escape:
                    this.Close();
                    break;
                case Keys.F1:
                    showHelpString = !showHelpString;
                    break;
                case Keys.F2:
                    enableSolidMode = !enableSolidMode;
                    break;
                case Keys.F3:
                    enableRotator = !enableRotator;
                    break;
                case Keys.F4:
                    rotatorXYZ = (rotatorXYZ + 1) % 3;
                    break;
                case Keys.F5:
                    enableCullMode = !enableCullMode;
                    break;
            }        }
    }
}

Answer 3

d3dfont = new Microsoft.DirectX.Direct3D.Font(device, winFont);
 提示应用程序错误