public void ColorRGBAF_CastToVertex4()
{
float r = (float)NextComponent(1.0f);
float g = (float)NextComponent(1.0f);
float b = (float)NextComponent(1.0f);
float a = (float)NextComponent(1.0f);
ColorRGBAF v = new ColorRGBAF(r, g, b, a);
Vertex4f vArray = v;
Assert.AreEqual(r, vArray.x);
Assert.AreEqual(g, vArray.y);
Assert.AreEqual(b, vArray.z);
Assert.AreEqual(a, vArray.w);
}
public Vertex4()
{
Random random = new Random();
_MinArray = new Vertex4f[MinArraySize];
for (int i = 0; i < _MinArray.Length; i++)
{
_MinArray[i] = new Vertex4f((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble(), Math.Max(0.1f, (float)random.NextDouble()));
}
_MaxArray = new Vertex4f[MaxArraySize];
for (int i = 0; i < _MaxArray.Length; i++)
{
_MaxArray[i] = new Vertex4f((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble(), Math.Max(0.1f, (float)random.NextDouble()));
}
}
/// <summary>
/// Compute the product between Matrix4x4 and Vertex4f.
/// </summary>
/// <param name="m">
/// A <see cref="Matrix4x4"/> that specify the left multiplication operand.
/// </param>
/// <param name="v">
/// A <see cref="Vertex4f"/> that specify the right multiplication operand.
/// </param>
protected static Vertex4f ComputeMatrixProduct(Matrix4x4 m, Vertex4f v)
{
float x, y, z, w;
unsafe
{
fixed(float *pm = m.MatrixBuffer)
{
x = pm[0x0] * v.x + pm[0x4] * v.y + pm[0x8] * v.z + pm[0xC] * v.w;
y = pm[0x1] * v.x + pm[0x5] * v.y + pm[0x9] * v.z + pm[0xD] * v.w;
z = pm[0x2] * v.x + pm[0x6] * v.y + pm[0xA] * v.z + pm[0xE] * v.w;
w = pm[0x3] * v.x + pm[0x7] * v.y + pm[0xB] * v.z + pm[0xF] * v.w;
}
}
return(new Vertex4f(x, y, z, w));
}
/// <summary>
/// Automatically computes bounding box for the specified vertex arrays.
/// </summary>
/// <param name="vertexArrayObject">
///
/// </param>
/// <returns>
/// It returns the <see cref="IBoundingVolume"/> for <paramref name="vertexArrayObject"/>, if possible.
/// </returns>
private static IBoundingVolume ComputeBoundingVolume(VertexArrays vertexArrayObject)
{
if (vertexArrayObject == null)
{
throw new ArgumentNullException("vertexArrayObject");
}
VertexArrays.IVertexArray vertexArray = vertexArrayObject.GetVertexArray(VertexArraySemantic.Position);
if (vertexArray == null)
{
return(null);
}
ArrayBufferBase positionArray = vertexArray.Array;
Type positionArrayType = positionArray.GetType();
if (positionArrayType == typeof(ArrayBuffer <Vertex4f>))
{
ArrayBuffer <Vertex4f> positionArray4f = (ArrayBuffer <Vertex4f>)positionArray;
Vertex4f min = Vertex4f.Maximum, max = Vertex4f.Minimum;
positionArray4f.MinMax(out min, out max);
return(new BoundingBox((Vertex3f)min, (Vertex3f)max));
}
else if (positionArrayType == typeof(ArrayBuffer <Vertex3f>))
{
ArrayBuffer <Vertex3f> positionArray3f = (ArrayBuffer <Vertex3f>)positionArray;
Vertex3f min = Vertex3f.Maximum, max = Vertex3f.Minimum;
positionArray3f.MinMax(out min, out max);
return(new BoundingBox(min, max));
}
else
{
return(null);
}
}
public VertexArrays CreateArrays(ObjContext objContext)
{
if (objContext == null)
{
throw new ArgumentNullException("objContext");
}
VertexArrays vertexArray = new VertexArrays();
List <ObjFaceCoord> coords = new List <ObjFaceCoord>();
bool hasTexCoord = Material.DiffuseTexture != null;
bool hasNormals = false;
bool hasTanCoord = hasTexCoord && Material.NormalTexture != null;
foreach (ObjFace f in Faces)
{
hasTexCoord |= f.HasTexCoord;
hasNormals |= f.HasNormal;
coords.AddRange(f.Triangulate());
}
uint vertexCount = (uint)coords.Count;
Vertex4f[] position = new Vertex4f[vertexCount];
Vertex3f[] normal = hasNormals ? new Vertex3f[vertexCount] : null;
Vertex2f[] texcoord = new Vertex2f[vertexCount];
for (int i = 0; i < position.Length; i++)
{
Debug.Assert(coords[i].VertexIndex < objContext.Vertices.Count);
position[i] = objContext.Vertices[coords[i].VertexIndex];
if (hasTexCoord)
{
Debug.Assert(coords[i].TexCoordIndex < objContext.TextureCoords.Count);
texcoord[i] = objContext.TextureCoords[coords[i].TexCoordIndex];
}
if (hasNormals)
{
Debug.Assert(coords[i].NormalIndex < objContext.Normals.Count);
normal[i] = objContext.Normals[coords[i].NormalIndex];
}
}
// Position (mandatory)
ArrayBuffer <Vertex4f> positionBuffer = new ArrayBuffer <Vertex4f>();
positionBuffer.Create(position);
vertexArray.SetArray(positionBuffer, VertexArraySemantic.Position);
// Layout (triangles)
vertexArray.SetElementArray(PrimitiveType.Triangles);
// Texture
if (hasTexCoord)
{
ArrayBuffer <Vertex2f> texCoordBuffer = new ArrayBuffer <Vertex2f>();
texCoordBuffer.Create(texcoord);
vertexArray.SetArray(texCoordBuffer, VertexArraySemantic.TexCoord);
}
// Normals
if (hasNormals)
{
ArrayBuffer <Vertex3f> normalBuffer = new ArrayBuffer <Vertex3f>();
normalBuffer.Create(normal);
vertexArray.SetArray(normalBuffer, VertexArraySemantic.Normal);
}
else
{
ArrayBuffer <Vertex3f> normalBuffer = new ArrayBuffer <Vertex3f>();
normalBuffer.Create(vertexCount);
vertexArray.SetArray(normalBuffer, VertexArraySemantic.Normal);
// XXX vertexArray.GenerateNormals();
}
// Tangents
if (hasTanCoord)
{
ArrayBuffer <Vertex3f> tanCoordBuffer = new ArrayBuffer <Vertex3f>();
tanCoordBuffer.Create(vertexCount);
vertexArray.SetArray(tanCoordBuffer, VertexArraySemantic.Tangent);
ArrayBuffer <Vertex3f> bitanCoordBuffer = new ArrayBuffer <Vertex3f>();
bitanCoordBuffer.Create(vertexCount);
vertexArray.SetArray(bitanCoordBuffer, VertexArraySemantic.Bitangent);
// XXX vertexArray.GenerateTangents();
}
return(vertexArray);
}
protected void LoadVector4(int location, Vertex4f value)
{
Gl.Uniform4f(location, 1, value);
}
public void LoadClipPlane(Vertex4f plane)
{
base.LoadVector4(this.location_waterClippingPlane, plane);
}
/// <summary>
/// Set uniform state variable (variant type variable)
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for operations.
/// </param>
/// <param name="uniformName">
/// A <see cref="String"/> that specify the variable name in the shader source.
/// </param>
/// <param name="v">
/// A <see cref="Vertex3f"/> holding the uniform variabile data.
/// </param>
public void SetVariantUniform(GraphicsContext ctx, string uniformName, Vertex4f v)
{
SetVariantUniform(ctx, uniformName, v.x, v.y, v.z, v.w);
}
private Vertex3f ToWorldCoords(Vertex4f eyeCoords)
{
Vertex4f rayWorld = viewMatrix.Inverse * eyeCoords;
return(new Vertex3f(rayWorld.x, rayWorld.y, rayWorld.z).Normalized);//z 구성 요소에 -1을 수동으로 지정 했으므로 광선이 정규화되지 않았기때문에 정규화 필요.
}
private Vertex4f ToEyeCoords(Vertex4f clipCoords)
{
Vertex4f eyeCoords = projectionMatrix.Inverse * clipCoords;
return(new Vertex4f(eyeCoords.x, eyeCoords.y, -1f, 0f));// z, w 부분을 "지점이 아닌 앞으로"를 의미 하도록 수동으로 설정
}
/// <summary>
/// Construct a Matrix3x4f specifying the matrix columns.
/// </summary>
public Matrix3x4f(Vertex4f c0, Vertex4f c1, Vertex4f c2)
{
Column0 = c0;
Column1 = c1;
Column2 = c2;
}
/// <summary>
/// Construct a Matrix2x4f specifying the matrix columns.
/// </summary>
public Matrix2x4f(Vertex4f c0, Vertex4f c1)
{
Column0 = c0;
Column1 = c1;
}
/// <summary>
/// Set uniform state variable (variant type variable)
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for operations.
/// </param>
/// <param name="uniformName">
/// A <see cref="String"/> that specify the variable name in the shader source.
/// </param>
/// <param name="v">
/// A <see cref="Vertex3f"/> holding the uniform variabile data.
/// </param>
public void SetVariantUniform(GraphicsContext ctx, string uniformName, Vertex4f v)
{
SetVariantUniform(ctx, uniformName, v.x, v.y, v.z, v.w);
}
void IShaderUniformContainer.SetUniform(GraphicsContext ctx, string uniformName, Vertex4f v)
{
SetUniform(uniformName, v);
}
/// <summary>
/// Creates a normalized plane.
/// </summary>
/// <param name="a">
/// A <see cref="Vertex4f"/> that specify the plane components.
/// </param>
/// <returns>
/// It returns the normalized plane.
/// </returns>
private static Planef NormalizePlane(Vertex4f v)
{
return(NormalizePlane(v.x, v.y, v.z, v.w));
}
private void Render(int width, int height, List <Light> lightList, Camera camera, Vertex4f clipPlane, float frameTimeSec)
{
Prepare(width, height);
//Entities
this.entityShader.Start();
this.entityShader.LoadClipPlane(clipPlane);
this.entityShader.LoadSkyColor(SKY_COLOR_RED, SKY_COLOR_GREEN, SKY_COLOR_BLUE);
this.entityShader.LoadLights(lightList);
this.entityShader.LoadViewMatrix(camera);
this.entityRenderer.Render(this.entities);
this.entityShader.Stop();
//Terrain
this.terrainShader.Start();
this.terrainShader.LoadClipPlane(clipPlane);
this.terrainShader.LoadSkyColor(SKY_COLOR_RED, SKY_COLOR_GREEN, SKY_COLOR_BLUE);
this.terrainShader.LoadLights(lightList);
this.terrainShader.LoadViewMatrix(camera);
this.terrainShader.LoadLightViewMatrix(this.shadowRenderer.LightSpaceMatrix);
this.terrainRenderer.Render(this.terrainList);
this.terrainShader.Stop();
//Skybox
this.skyboxRenderer.Render(camera, new Vertex3f(SKY_COLOR_RED, SKY_COLOR_GREEN, SKY_COLOR_BLUE), frameTimeSec);
}
public void RenderScene(int width, int height, List <Light> lights, Camera camera, Vertex4f clipPlane, float frameTimeSec)
{
Render(width, height, lights, camera, clipPlane, frameTimeSec);
}