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C#XNA 3D模型无法渲染

[英]C# XNA 3D Model not rendering

该模型是.fbx,我也尝试了许多模型,似乎什么也没有用,我想知道是否有人可以帮助我,以下代码是我所要感谢的!

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;

namespace _3D
{

    public class Game1 : Microsoft.Xna.Framework.Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;
        Model model;
        Matrix[] transforms;

        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
            graphics.PreferredBackBufferHeight = 800;
            graphics.PreferredBackBufferWidth = 1280;
        }

        protected override void Initialize()
        {

            base.Initialize();
        }

        protected override void LoadContent()
        {
            spriteBatch = new SpriteBatch(GraphicsDevice);
            model = Content.Load<Model>("3d/screwdriver");
            transforms = new Matrix[model.Bones.Count];
            model.CopyAbsoluteBoneTransformsTo(transforms);
        }
        protected override void UnloadContent()
        {
        }


        protected override void Update(GameTime gameTime)
        {

            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
                this.Exit();


            base.Update(gameTime);
        }    

        // The draw method is one of the reasons I think nothing is working,

        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);
            Matrix view = Matrix.CreateLookAt(
                new Vector3(200, 300, 900),
                new Vector3(0, 50, 0),
                Vector3.Up);
            Matrix projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45), GraphicsDevice.Viewport.AspectRatio, 0.1f, 10000.0f);
            Matrix baseWorld = Matrix.CreateScale(0.4f) * Matrix.CreateRotationY(MathHelper.ToRadians(180));
            foreach (ModelMesh mesh in model.Meshes)
            {
                Matrix localWorld = transforms[mesh.ParentBone.Index] * baseWorld;
                foreach (ModelMeshPart part in mesh.MeshParts)
                { 
                BasicEffect e = (BasicEffect)part.Effect;
                e.World = localWorld;
                e.View = view;
                e.Projection = projection;
                e.EnableDefaultLighting();

                }
                mesh.Draw();
            }
            base.Draw(gameTime);
        }
    }
}

我没有发现您的代码有任何真正的问题,因此问题可能出在模型上。

这可能是由于所讨论的模型文件引起的。 Blender上的原始FBX导出器存在一个已知问题(我不知道您使用的建模软件是用来制作模型的,但问题仍然存在),导致导出的模型尺寸比实际尺寸大100倍。搅拌机。 结果是该模型太大,以至于它不仅将相机包围在内部,而且太大,以至于多边形超出了视锥范围。 结果:该模型确实已渲染,但是除非您移动摄像机直到意识到缩放问题,否则它永远不会出现在屏幕上。

我说这是因为我自己处理了这个问题。 如果您确实在使用Blender,则应使用在此页面中找到的导出器: http : //blog.diabolicalgame.co.uk/2011/07/exporting-animated-models-from-blender.html

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