//Celshader
public Vector3 CelShading(VertexProcessor vert, Vector3 normal)
{
shininess = 2f;
int _CelTone = 10;
Vector3 diffuseColor = new Vector3(0, 0, 200);
Vector3 specularColor = new Vector3(10, 10, 10);
Vector3 N = vert.tr(normal).Normalize();
Vector3 V = vert.tr(position).Normalize();
Vector3 L = (V - position).Normalize();
Vector3 R = L.Reflect(L, N);
float diffuseValue = Math.Max(0, L.Dot(N));
double celShading = Math.Floor((diffuseValue * _CelTone) / (_CelTone - 0.5));
float specularValue = (float)Math.Pow(R.Dot(V), shininess);
diffuseColor *= diffuseValue;
diffuseColor *= (float)celShading;
specularColor *= specularValue;
Vector3 col = diffuseColor + specularColor;
return(col);
}
public void Light(Light l, VertexProcessor processor)
{
foreach (Vertex v in vertexes)
{
v.light = l.Calculate(processor, v);
}
}
//shader Gooch
public Vector3 GoochShading(VertexProcessor vert, Vector3 normal)
{
shininess = 2f;
float alfa = 0.5f;
float beta = 0.25f;
Vector3 coolColor = new Vector3(0, 0, 255);
Vector3 warmColor = new Vector3(255, 0, 0);
Vector3 diffuseColor = new Vector3(0, 0, 0);
Vector3 specularColor = new Vector3(50, 50, 50);
Vector3 N = vert.tr(normal).Normalize();
Vector3 V = vert.tr(position).Normalize();
Vector3 L = (V - position).Normalize();
Vector3 R = L.Reflect(L, N);
float diffuseValue = Math.Max(0, L.Dot(N));
float wsp = 0.5f * (1.0f + diffuseValue);
float specularValue = (float)Math.Pow(R.Dot(V), shininess);
diffuseColor *= diffuseValue;
specularColor *= specularValue;
coolColor = coolColor + diffuseColor * alfa;
warmColor = warmColor + diffuseColor * beta;
Vector3 gooch = (warmColor * (1.0f - wsp)) + (coolColor * wsp) + specularColor;
return(gooch);
}
public Bitmap Run()
{
var bitmap = new Bitmap(640, 480, PixelFormat.Format32bppArgb);
var r = new Rasterizer();
var v = new VertexProcessor(r);
var pixelShader = new PixelShader();
var vertexShader = new VertexShader();
r.SetScissorRect(0, 0, 640, 480);
v.SetViewport(100, 100, 640 - 200, 480 - 200);
v.SetCullMode(CullMode.None);
var indices = new List <int> {
0, 1, 2
};
var vertices = new List <VertexData>();
var vertex = new VertexData();
vertex.x = 0.0f;
vertex.y = 0.5f;
vertex.z = 0.0f;
vertex.r = 1.0f;
vertex.g = 0.0f;
vertex.b = 0.0f;
vertices.Add(vertex);
vertex = new VertexData();
vertex.x = -1.5f;
vertex.y = -0.5f;
vertex.z = 0.0f;
vertex.r = 0.0f;
vertex.g = 1.0f;
vertex.b = 0.0f;
vertices.Add(vertex);
vertex = new VertexData();
vertex.x = 1.5f;
vertex.y = -0.5f;
vertex.z = 0.0f;
vertex.r = 0.0f;
vertex.g = 0.0f;
vertex.b = 1.0f;
vertices.Add(vertex);
pixelShader.Bitmap = bitmap;
vertexShader.VertexData = vertices;
r.SetPixelShader(pixelShader);
v.SetVertexShader(vertexShader);
v.DrawElements(DrawMode.Triangle, 3, indices);
return(bitmap);
}
public Vector3 GoraudShading(VertexProcessor vert, Vertex v1, Vertex v2, Vertex v3)
{
Vector3 col = Lerp(v1.light, v2.light, 0.5f);
Vector3 col2 = Lerp(v1.light, v3.light, 0.5f);
col = Lerp(col, col2, 0.5f);
return(col);
}
public void DrawMesh(Rasterization rasterizer, VertexProcessor processor, Light l)
{
//Представление вершины в пространстве.
for (int i = 0; i < indexes.Count; i += 3)
{
rasterizer.Triangle(processor.tr(vertexes[indexes[i]].position), processor.tr(vertexes[indexes[i + 1]].position),
processor.tr(vertexes[indexes[i + 2]].position), vertexes[indexes[i]], vertexes[indexes[i + 1]], vertexes[indexes[i + 2]], l, processor);
}
}
public void Run()
{
var r = new Rasterizer();
var v = new VertexProcessor(r);
var pixelShader = new PixelShader();
var vertexShader = new VertexShader();
r.SetScissorRect(0, 0, 640, 480);
v.SetViewport(0, 0, 640, 480);
v.SetCullMode(CullMode.None);
var indices = new List <int>();
var vertices = new List <VertexData>();
var random = new Random(0);
for (int i = 0; i < 4096 * 10; i++)
{
VertexData CreateVertex()
{
var vertex = new VertexData();
vertex.x = (float)random.NextDouble();
vertex.y = (float)random.NextDouble();
vertex.z = (float)random.NextDouble();
vertex.r = (float)random.NextDouble();
vertex.g = (float)random.NextDouble();
vertex.b = (float)random.NextDouble();
return(vertex);
}
var offset = vertices.Count;
vertices.Add(CreateVertex());
vertices.Add(CreateVertex());
vertices.Add(CreateVertex());
indices.Add(offset + 0);
indices.Add(offset + 1);
indices.Add(offset + 2);
}
pixelShader.Buffer = new int[640 * 480];
pixelShader.Width = 640;
pixelShader.Height = 480;
vertexShader.VertexData = vertices;
r.SetPixelShader(pixelShader);
v.SetVertexShader(vertexShader);
var sw = Stopwatch.StartNew();
v.DrawElements(DrawMode.Triangle, indices.Count, indices);
Console.WriteLine(sw.ElapsedMilliseconds);
}
public static void TransformVertices <T>(Mesh <T> mesh, VertexProcessor <T> processor) where T : unmanaged
{
var vertices = mesh.Vertices;
for (int i = 0; i < vertices.Length; i++)
{
processor(ref vertices[i]);
}
mesh.DirtyFlags |= MeshDirtyFlags.Vertices;
}
public void DrawMesh(Rasterization rasterizer, VertexProcessor processor, Light l)
{
System.Console.WriteLine("Ilosc indeksow: " + indexes.Count);
for (int i = 0; i < indexes.Count; i += 3)
{
rasterizer.Triangle(processor.tr(vertexes[indexes[i]].position), processor.tr(vertexes[indexes[i + 1]].position), processor.tr(vertexes[indexes[i + 2]].position), vertexes[indexes[i]], vertexes[indexes[i + 1]], vertexes[indexes[i + 2]], l, processor);
stream.WriteLine("Indeks: " + indexes[i] + " " + indexes[i + 1] + " " + indexes[i + 2]);
stream.WriteLine("Wierzchołki: " + vertexes[indexes[i]].position.ToString() + " | " + vertexes[indexes[i + 1]].position.ToString() + " | " + vertexes[indexes[i + 2]].position.ToString());
}
stream.Close();
}
public static void TransformVertices <T>(IMesh mesh, VertexProcessor <T> processor) where T : struct
{
if (mesh.VertexBuffers.Length != 1 || !(mesh.VertexBuffers[0] is VertexBuffer <T>))
{
throw new InvalidOperationException();
}
var vertices = ((VertexBuffer <T>)mesh.VertexBuffers[0]).Data;
for (int i = 0; i < vertices.Length; i++)
{
processor(ref vertices[i]);
}
mesh.VertexBuffers[0].Dirty = true;
}
public Bitmap Run()
{
var screen = new Bitmap(640, 480, PixelFormat.Format32bppArgb);
var texture = new Bitmap("Data/box.png");
var objLoaderFactory = new ObjLoaderFactory();
var objLoader = objLoaderFactory.Create(new IgnoreMaterial());
var box = objLoader.Load(File.OpenRead("Data/box.obj"));
(var idata, var vdata) = CreateVertexArray(box);
var lookAt = Matrix4x4.CreateLookAt(new Vector3(3.0f, 2.0f, 5.0f), new Vector3(0.0f), new Vector3(0.0f, 1.0f, 0.0f));
var fieldOfView = (float)(60.0 * Math.PI / 180.0);
var aspect = 4.0f / 3.0f;
var perspective = Matrix4x4.CreatePerspectiveFieldOfView(fieldOfView, aspect, 0.1f, 10.0f);
var r = new Rasterizer();
var v = new VertexProcessor(r);
r.SetRasterMode(RasterMode.Span);
r.SetScissorRect(0, 0, 640, 480);
v.SetViewport(0, 0, 640, 480);
v.SetCullMode(CullMode.CW);
var pixelShader = new PixelShader();
pixelShader.Screen = screen;
pixelShader.Texture = texture;
r.SetPixelShader(pixelShader);
var vertexShader = new VertexShader();
vertexShader.Data = vdata;
vertexShader.ModelViewProjectionMatrix = lookAt * perspective;
v.SetVertexShader(vertexShader);
v.DrawElements(DrawMode.Triangle, idata.Count, idata);
return(screen);
}
public Vector3 Calculate(VertexProcessor vert, Vertex v)
{
shininess = 1f;
Vector3 diffuseColor = new Vector3(0, 0, 100);
Vector3 specularColor = new Vector3(255, 0, 0);
Vector3 N = vert.tr(v.normal).Normalize();
Vector3 V = vert.tr(position).Normalize();
Vector3 L = (V - position).Normalize();
Vector3 R = L.Reflect(L, N);
float diffuseValue = Math.Max(0.0f, L.Dot(N));
float specularValue = (float)Math.Pow(R.Dot(V), shininess);
diffuseColor *= diffuseValue;
specularColor *= specularValue;
Vector3 col = diffuseColor + specularColor;
return(col);
}
public void DrawMesh(Rasterization rasterizer, VertexProcessor processor)
{
throw new NotImplementedException();
}
public SkinFilter(VertexProcessor processor) : base(processor)
{
}
public void Light(Light l, VertexProcessor v)
{
throw new NotImplementedException();
}
public void DrawMesh(Rasterization rasterizer, VertexProcessor processor)
{
//rasterizer.Triangle(processor.tr(vertices[0].position), processor.tr(vertices[1].position), processor.tr(vertices[2].position));
//rasterizer.Triangle(vertices[0].position, vertices[1].position, vertices[2].position);
}
public PhysicsFilter(VertexProcessor processor) : base(processor)
{
}
