public void AddGameObject(GameObject3D gameObject)
{
gameObjects.Add(gameObject);
}
public void Render()
{
////测试画线函数------>>>>>>
//VertexOut pA = new VertexOut();
//pA.posProjective = new Vector4D(100,0,0,1);
//VertexOut pB = new VertexOut();
//pB.posProjective = new Vector4D(100, 100, 0, 1);
//BresenhamLineRasterization(pA, pB);
//return;
////测试画线函数<<<<<<<--------
///
Vector3D tmp = scene.camera.transform.GetPosition();
cameraPosition = new Vector3D(tmp.x, tmp.y, tmp.z);
//cameraPosition.x = -cameraPosition.x;
//cameraPosition.y = -cameraPosition.y;
//cameraPosition.z = -cameraPosition.z;
Vector3D up = new Vector3D(0, 1, 0);
//up.x = -up.x;
//up.y = -up.y;
//up.z = -up.z;
viewMatrix.SetLookAt(cameraPosition, new Vector3D(0, 0, 0), up);
backBuffer.Clear();
//scene.camera
for (int i = 0; i < scene.gameObjects.Count; i++)
{
GameObject3D gameObject = scene.gameObjects[i];
BaseShader shader = gameObject.meshRenderer.material.shader;
shader.SetModelMatrix(gameObject.transform.ToMatrix());
shader.SetViewMatrix(viewMatrix);
shader.SetEyePos(cameraPosition);
shader.SetProjectMatrix(projectMatrix);
shader.SetLight(scene.light);
//图元装配
Mesh mesh = gameObject.meshRenderer.mesh;
//Debug.LogError("%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%");
for (int j = 0; j < mesh.indices.Length; j += 3)
{
Vertex p1, p2, p3;
p1 = mesh.vertices[mesh.indices[j]];
p2 = mesh.vertices[mesh.indices[j + 1]];
p3 = mesh.vertices[mesh.indices[j + 2]];
//顶点着色(遍历三角形)
VertexOut vertexOut1, vertexOut2, vertexOut3;
vertexOut1 = shader.VertexShader(p1);
vertexOut2 = shader.VertexShader(p2);
vertexOut3 = shader.VertexShader(p3);
shader.ProjectedMap(vertexOut1);
shader.ProjectedMap(vertexOut2);
shader.ProjectedMap(vertexOut3);
//背面裁剪
if (shader.backFaceCulling)
{
if (polygonMode != PolygonMode.Wire && !BackFaceCulling(vertexOut1.posWorld, vertexOut2.posWorld, vertexOut3.posWorld))
{
continue;
}
}
//透视处理
PerspectiveDivision(vertexOut1);
PerspectiveDivision(vertexOut2);
PerspectiveDivision(vertexOut3);
//几何裁剪
//屏幕空间转换
vertexOut1.posProjective = Matrix4x4.MultiplyVector4D(viewPortMatrix, vertexOut1.posProjective);
vertexOut2.posProjective = Matrix4x4.MultiplyVector4D(viewPortMatrix, vertexOut2.posProjective);
vertexOut3.posProjective = Matrix4x4.MultiplyVector4D(viewPortMatrix, vertexOut3.posProjective);
//Debug.LogError("vertexOut1.posProjective " + vertexOut1.posProjective.x
// + " " + vertexOut1.posProjective.y + " " + vertexOut1.posProjective.z );
//Debug.LogError("vertexOut2.posProjective " + vertexOut2.posProjective.x
// + " " + vertexOut2.posProjective.y + " " + vertexOut2.posProjective.z );
//Debug.LogError("vertexOut3.posProjective " + vertexOut3.posProjective.x
// + " " + vertexOut3.posProjective.y + " " + vertexOut3.posProjective.z );
//Debug.LogError("-----------------");
//片段着色
if (polygonMode == PolygonMode.Wire)
{
//线框模式
BresenhamLineRasterization(vertexOut1, vertexOut2);
BresenhamLineRasterization(vertexOut1, vertexOut3);
BresenhamLineRasterization(vertexOut2, vertexOut3);
}
else
{
//三角形填充模式
EdgeWalkingFillRasterization(vertexOut1, vertexOut2, vertexOut3, shader);
}
}
}
}
// Use this for initialization
void Start()
{
//for (int w = 0; w < Global.screenWidth; w++)
//{
// for (int h = 0; h < Global.screenHeight; h++)
// {
// if (h > Global.screenHeight / 2 && h < Global.screenHeight / 2 + 50)
// texture.SetPixel(w, h,UnityEngine.Color.yellow);
// else
// texture.SetPixel(w, h, UnityEngine.Color.green);
// }
//}
////Debug.LogError(UnityEngine.Color.green.r + " " + UnityEngine.Color.green.g + " " + UnityEngine.Color.green.b + " " + UnityEngine.Color.green.a);
//texture.Apply();
/*
* //四元数转欧拉角
* Quaternion quaternion = new Quaternion();
* //(w,x,y,z)=(0.653,-0.271,0.653,0.271)
* quaternion.w = 0.653f;
* quaternion.x = -0.271f;
* quaternion.y = 0.653f;
* quaternion.z = 0.271f;
* Vector3D vector = quaternion.ToEular();
* Debug.LogError("111 从四元数转到欧拉角 vector.x " + Mathf.Rad2Deg * vector.x + " vector.y " + Mathf.Rad2Deg * vector.y + " vector.z " + Mathf.Rad2Deg * vector.z);
*
* //欧拉角转四元数
* quaternion = new Quaternion();
* quaternion.FromEular(vector);
* Debug.LogError("111 从欧拉角转回四元数 w " + quaternion.w + " x " + quaternion.x + " y " + quaternion.y + " z " + quaternion.z);
*
* //(10,20,30)
* vector.x = 10f * Mathf.Deg2Rad;
* vector.y = 10f * Mathf.Deg2Rad;
* vector.z = 10f * Mathf.Deg2Rad;
*
* quaternion = new Quaternion();
* quaternion.FromEular(vector);
* Debug.LogError("222 自定义欧拉角转四元数 w " + quaternion.w + " x " + quaternion.x + " y " + quaternion.y + " z " + quaternion.z);
*
* vector = quaternion.ToEular();
* Debug.LogError("222 自定义的欧拉角生成的四元数打印 vector.x " + Mathf.Rad2Deg * vector.x + " vector.y " + Mathf.Rad2Deg * vector.y + " vector.z " + Mathf.Rad2Deg * vector.z);
*
* Matrix4x4 matrix = quaternion.ToMatrix();
* quaternion = new Quaternion();
* quaternion.FromMatrix(matrix);
*
* vector = quaternion.ToEular();
* Debug.LogError("333 四元数转矩阵，在用矩阵转四元数 vector.x " + Mathf.Rad2Deg * vector.x + " vector.y " + Mathf.Rad2Deg * vector.y + " vector.z " + Mathf.Rad2Deg * vector.z);
*
* quaternion = new Quaternion();
* quaternion.FromEular(new Vector3D(0, 0, 10 * Mathf.Deg2Rad));
* quaternion = Quaternion.Mutlipy(quaternion, quaternion);
* quaternion = Quaternion.Mutlipy(quaternion, quaternion);
* quaternion = Quaternion.Mutlipy(quaternion, quaternion);
* vector = quaternion.ToEular();
* Debug.LogError("444 四元数相乘 vector.x " + Mathf.Rad2Deg * vector.x + " vector.y " + Mathf.Rad2Deg * vector.y + " vector.z " + Mathf.Rad2Deg * vector.z);
*
* Quaternion quaternion1 = new Quaternion();
* quaternion1.FromEular(new Vector3D(0, 0, 10 * Mathf.Deg2Rad));
* quaternion1.Conjugate();
* quaternion = Quaternion.Mutlipy(quaternion, quaternion1);
* vector = quaternion.ToEular();
* Debug.LogError("555 取共轭四元数求反 vector.x " + Mathf.Rad2Deg * vector.x + " vector.y " + Mathf.Rad2Deg * vector.y + " vector.z " + Mathf.Rad2Deg * vector.z);
*
* quaternion = Quaternion.Delta(quaternion, quaternion1);
* vector = quaternion.ToEular();
* Debug.LogError("666 两个四元数间的差距为 vector.x " + Mathf.Rad2Deg * vector.x + " vector.y " + Mathf.Rad2Deg * vector.y + " vector.z " + Mathf.Rad2Deg * vector.z);
*
* quaternion1 = Quaternion.Pow(quaternion1, 0.2f);
* quaternion = Quaternion.Mutlipy(quaternion, quaternion1);
* vector = quaternion.ToEular();
* Debug.LogError("777 四元数求幂后 vector.x " + Mathf.Rad2Deg * vector.x + " vector.y " + Mathf.Rad2Deg * vector.y + " vector.z " + Mathf.Rad2Deg * vector.z);
*
* quaternion = new Quaternion();
* quaternion.FromEular(new Vector3D(0, 0, 10 * Mathf.Deg2Rad));
*
* quaternion1 = new Quaternion();
* quaternion1.FromEular(new Vector3D(0, 0, 50 * Mathf.Deg2Rad));
*
* quaternion = Quaternion.Slerp(quaternion, quaternion1, 0.5f);
* vector = quaternion.ToEular();
* Debug.LogError("888 求插值后 vector.x " + Mathf.Rad2Deg * vector.x + " vector.y " + Mathf.Rad2Deg * vector.y + " vector.z " + Mathf.Rad2Deg * vector.z);
*
* quaternion = new Quaternion();
* quaternion.FromEular(new Vector3D(0, 90 * Mathf.Deg2Rad, 0));
* vector = new Vector3D(0, 0, 10);//z轴的向量绕y轴旋转90度
* vector = Quaternion.MutlipyVector3D(quaternion, vector);
*
* Debug.LogError("999 向量和四元数相乘 vector.x " + vector.x + " vector.y " + vector.y + " vector.z " + vector.z);
*
*/
texture = new UnityEngine.Texture2D(Global.screenWidth, Global.screenHeight);
rawImage.texture = texture;
//Texture2D texture2D = new Texture2D();
// texture2D.Load("wolf/STANDARD_WOLF_A");
// System.Diagnostics.Stopwatch getTime = new System.Diagnostics.Stopwatch();
// getTime.Start();
// UnityEngine.Color color = UnityEngine.Color.white;
// for (int h = 0; h < Global.screenHeight; h++)
// {
// for (int w = 0; w < Global.screenWidth; w++)
// {
// float u = ((float)w) / Global.screenWidth;
// float v = ((float)h) / Global.screenHeight;
// Color colorData = texture2D.Sample(u, v);
// color.r = colorData.r;
// color.g = colorData.g;
// color.b = colorData.b;
// color.a = colorData.a;
// texture.SetPixel(w, h, color);
// }
// }
// getTime.Stop();
// Debug.LogError("getTime:" + getTime.ElapsedMilliseconds.ToString());
//texture.Apply();
pipeline = new Pipeline();
Scene scene = new Scene();
pipeline.scene = scene;
////正方体测试---->>>>>
//GameObject3D gameObject3D = new GameObject3D();
//MeshRenderer meshRenderer = new MeshRenderer();
//meshRenderer.material = new Material();
//meshRenderer.material.shader = new SimpleShader();
//meshRenderer.material.texture = new Texture2D();
//meshRenderer.material.texture.Load("box");
//meshRenderer.material.shader.SetMainTexture(meshRenderer.material.texture);
//meshRenderer.mesh = new Mesh();
////meshRenderer.mesh.AsCube();
//meshRenderer.mesh.AsTriangle();
//gameObject3D.meshRenderer = meshRenderer;
//scene.AddGameObject(gameObject3D);
////<<<<<------正方体测试
//模型测试1----->>>>>>
GameObject3D gameObject3D = new GameObject3D();
MeshRenderer meshRenderer = new MeshRenderer();
meshRenderer.material = new Material();
meshRenderer.material.shader = new SimpleShader();
meshRenderer.material.texture = new Texture2D();
meshRenderer.material.texture.Load("wolf/STANDARD_WOLF_A");
meshRenderer.material.shader.SetMainTexture(meshRenderer.material.texture);
meshRenderer.mesh = new Mesh();
meshRenderer.mesh.LoadFile("wolf/wolfFBX");
gameObject3D.meshRenderer = meshRenderer;
scene.AddGameObject(gameObject3D);
gameObject3D.transform.Translate(new Vector3D(0, 0, 0));
gameObject3D.transform.RotateY(180);
gameObject3D.transform.RotateX(-90);
//模型测试<<<<<<<<-----
//模型测试2----->>>>>>
gameObject3D = new GameObject3D();
meshRenderer = new MeshRenderer();
meshRenderer.material = new Material();
meshRenderer.material.shader = new SimpleShader();
meshRenderer.material.texture = new Texture2D();
meshRenderer.material.texture.Load("wolf/STANDARD_WOLF_A");
meshRenderer.material.shader.SetMainTexture(meshRenderer.material.texture);
meshRenderer.mesh = new Mesh();
meshRenderer.mesh.LoadFile("wolf/wolfFBX");
gameObject3D.meshRenderer = meshRenderer;
scene.AddGameObject(gameObject3D);
gameObject3D.transform.Translate(new Vector3D(2, 0, 0));
gameObject3D.transform.RotateY(180);
gameObject3D.transform.RotateX(-90);
//模型测试<<<<<<<<-----
//模型测试3----->>>>>>
gameObject3D = new GameObject3D();
meshRenderer = new MeshRenderer();
meshRenderer.material = new Material();
meshRenderer.material.shader = new SimpleShader();
meshRenderer.material.texture = new Texture2D();
meshRenderer.material.texture.Load("wolf/STANDARD_WOLF_A");
meshRenderer.material.shader.SetMainTexture(meshRenderer.material.texture);
meshRenderer.mesh = new Mesh();
meshRenderer.mesh.LoadFile("wolf/wolfFBX");
gameObject3D.meshRenderer = meshRenderer;
scene.AddGameObject(gameObject3D);
gameObject3D.transform.Translate(new Vector3D(-2, 0, 0));
gameObject3D.transform.RotateY(180);
gameObject3D.transform.RotateX(-90);
//模型测试<<<<<<<<-----
//地面----->>>>>>
gameObject3D = new GameObject3D();
meshRenderer = new MeshRenderer();
meshRenderer.material = new Material();
meshRenderer.material.shader = new SimpleShader();
meshRenderer.material.texture = new Texture2D();
meshRenderer.material.texture.Load("box");
meshRenderer.material.shader.SetMainTexture(meshRenderer.material.texture);
meshRenderer.mesh = new Mesh();
meshRenderer.mesh.AsGround();
gameObject3D.meshRenderer = meshRenderer;
scene.AddGameObject(gameObject3D);
gameObject3D.transform.Translate(new Vector3D(0, -4, 3));
//gameObject3D.transform.RotateY(30);
//模型测试<<<<<<<<-----
//旋转角度试试
//gameObject3D.transform.RotateX(-90);
DirectionalLight directionalLight = new DirectionalLight();
directionalLight.SetDirection(new Vector3D(-1, -1, 1), 0.3f);
scene.light = directionalLight;
scene.camera.transform.Translate(new Vector3D(0, 3, -5));
//scene.camera.transform.Translate(new Vector3D(0,5,-10));
//scene.camera.transform.RotateX(10);
Matrix4x4 projectMatrix = new Matrix4x4();
projectMatrix.SetPerspective(45f, ((float)Global.screenWidth) / Global.screenHeight, 0.01f, 40f);
pipeline.SetProjectMatrix(projectMatrix);
pipeline.SetPolygonMode(PolygonMode.Fill);
//pipeline.SetPolygonMode(PolygonMode.Wire);
//TimerManager.Instance.CallActionDelay((obj) => {
// gameObject3D.transform.RotateY(30);
//}, 1, null, -1, 1, true);
//测试FrameBuffer-------------》》》》》》
//FrameBuffer frameBuffer = new FrameBuffer();
//frameBuffer.SetWidthAndHeight(Global.screenWidth, Global.screenHeight);
//for (int h = 0; h < Global.screenHeight; h++)
//{
// for (int w = 0; w < Global.screenWidth; w++)
// {
// float u = ((float)w) / Global.screenWidth;
// float v = ((float)h) / Global.screenHeight;
// Color colorData = texture2D.Sample(u, v);
// frameBuffer.DrawPixel(w, h, colorData);
// }
//}
//for (int h = 0; h < Global.screenHeight; h++)
//{
// for (int w = 0; w < Global.screenWidth; w++)
// {
// Color colorData = frameBuffer.GetColor(w, h);
// color.r = colorData.r;
// color.g = colorData.g;
// color.b = colorData.b;
// color.a = colorData.a;
// texture.SetPixel(w, h, color);
// }
//}
//texture.Apply();
//测试FrameBuffer《《《《《《-------------
//测试矩阵乘以向量------>>>>
//matrix = new Matrix4x4();
//Vector4D vector4D = new Vector4D(1, 2, 3, 4);
//vector4D = Matrix4x4.MultiplyVector4D(matrix, vector4D);
//Debug.LogError("x " + vector4D.x + " y " + vector4D.y + " z " + vector4D.z + " w " + vector4D.w);
//测试矩阵乘以向量<<<<<<-------
//UnityEngine.UI.InputField inputField;
}
