public void Matrix23()
{
string fs =
@"#version 330
uniform mat2x3 exampleMat23;
out vec3 FragColor;
void main()
{
FragColor = vec3(exampleMat23[0].z, exampleMat23[1].x, 0.0);
}";
using (GraphicsWindow window = Device.CreateWindow(1, 1))
using (Framebuffer framebuffer = TestUtility.CreateFramebuffer(window.Context))
using (ShaderProgram sp = Device.CreateShaderProgram(ShaderSources.PassThroughVertexShader(), fs))
using (VertexArray va = TestUtility.CreateVertexArray(window.Context, sp.VertexAttributes["position"].Location))
{
Matrix23 <float> m23 = new Matrix23 <float>(
0.0f, 1.0f,
0.0f, 0.0f,
1.0f, 0.0f);
Uniform <Matrix23 <float> > exampleMat23 = (Uniform <Matrix23 <float> >)sp.Uniforms["exampleMat23"];
Assert.AreEqual("exampleMat23", exampleMat23.Name);
Assert.AreEqual(UniformType.FloatMatrix23, exampleMat23.Datatype);
Assert.AreEqual(new Matrix23 <float>(), exampleMat23.Value);
exampleMat23.Value = m23;
Assert.AreEqual(m23, exampleMat23.Value);
window.Context.Framebuffer = framebuffer;
window.Context.Draw(PrimitiveType.Points, 0, 1, new DrawState(TestUtility.CreateRenderStateWithoutDepthTest(), sp, va), new SceneState());
TestUtility.ValidateColor(framebuffer.ColorAttachments[0], 255, 255, 0);
}
}
internal UniformFloatMatrix23GL3x(string name, int location, ICleanableObserver observer)
: base(name, UniformType.FloatMatrix23)
{
_location = location;
_value = new Matrix23 <float>();
_dirty = true;
_observer = observer;
_observer.NotifyDirty(this);
}
public void Construct1()
{
Matrix23<double> m = new Matrix23<double>(1.0);
for (int i = 0; i < m.NumberOfComponents; ++i)
{
Assert.AreEqual(1.0, m.ReadOnlyColumnMajorValues[0], 1e-14);
}
}
public void DoubleToFloat()
{
Matrix23<double> m = new Matrix23<double>(
1.0, 2.0,
3.0, 4.0,
5.0, 6.0);
Matrix23<float> mf = Matrix23<double>.DoubleToFloat(m);
Assert.AreEqual(1.0f, mf.Column0Row0, 1e-7);
Assert.AreEqual(2.0f, mf.Column1Row0, 1e-7);
Assert.AreEqual(3.0f, mf.Column0Row1, 1e-7);
Assert.AreEqual(4.0f, mf.Column1Row1, 1e-7);
Assert.AreEqual(5.0f, mf.Column0Row2, 1e-7);
Assert.AreEqual(6.0f, mf.Column1Row2, 1e-7);
}
// a*bで初期化
public Matrix23(ref Matrix23 a, ref Matrix33 b)
{
var t00 = (a.m00 * b.m00) + (a.m01 * b.m10) + (a.m02 * b.m20);
var t01 = (a.m00 * b.m01) + (a.m01 * b.m11) + (a.m02 * b.m21);
var t02 = (a.m00 * b.m02) + (a.m01 * b.m12) + (a.m02 * b.m22);
var t10 = (a.m10 * b.m00) + (a.m11 * b.m10) + (a.m12 * b.m20);
var t11 = (a.m10 * b.m01) + (a.m11 * b.m11) + (a.m12 * b.m21);
var t12 = (a.m10 * b.m02) + (a.m11 * b.m12) + (a.m12 * b.m22);
m00 = t00;
m01 = t01;
m02 = t02;
m10 = t10;
m11 = t11;
m12 = t12;
}
protected void DrawTag(Renderer renderer, Graphics graphics, string tag)
{
var d = 2 * Radius;
var gTransform = graphics.Transform;
graphics.ResetTransform();
var pos = Location;
var offset = new Vector2(d, -d);
offset.Rotate(-renderer.Turn);
pos += offset;
pos = Matrix23.FromColumns(gTransform.Elements) * pos;
graphics.DrawString(tag, renderer.Font,
Selected ? Root.Scene.Brushes.SelectedName : Root.Scene.Brushes.Name, (float)pos.X, (float)pos.Y);
graphics.Flush();
graphics.Transform = gTransform;
}
void CreatePositionToTexcoordTransform()
{
if (_sprite == null)
{
return;
}
/*
* UVと位置の関係を求めるために、位置にある行列を乗ずるとアトラス内のUVになる、
* というような「ある行列」を求める。
* 3頂点の位置p0,p1,p2及びUVt0,t1,t2を列ベクタとして並べ、行列P及びTを作る。
* 「ある行列」をXとする。すると、T=XP
* 要素ごとに書けば以下のようになる
|t0x t1x t2x| |m00 m01 m02| |p0x p1x p2x|
|t0y t1y t2y| = |m10 m11 m12| |p0y p1y p2y|
|1 1 1| | 0 0 1| | 1 1 1|
*
* ここで、右からPの逆行列P^を乗ずれば、TP^=XPP^=Xとなり、Xが求まる
*/
int i0, i1, i2;
SelectIndependentVertices(out i0, out i1, out i2, _sprite.vertices);
var matT = new Matrix23(ref _sprite.uv[i0], ref _sprite.uv[i1], ref _sprite.uv[i2]); // T
var matP = new Matrix33(ref _sprite.vertices[i0], ref _sprite.vertices[i1], ref _sprite.vertices[i2]); // P
if (!matP.Invert()) // 三角形が縮退していて逆行列を作れない
{
return;
}
var spriteRect = _sprite.rect;
var spriteWidth = spriteRect.width;
var spriteHeight = spriteRect.height;
matT.Multiply(ref matP); // matTにTP^=Xが入った
matT.Scale( // さらにスプライトの頂点座標をワールドからスプライト内座標に変換する
spriteWidth / _sprite.pixelsPerUnit,
spriteHeight / _sprite.pixelsPerUnit);
matT.Translate( // ピボット分ずらし
-_sprite.pivot.x / spriteWidth,
-_sprite.pivot.y / spriteHeight);
_positionToTexcoordTransform = matT;
}
public override void Draw(Renderer renderer, Graphics graphics)
{
base.Draw(renderer, graphics);
var center = OBBox.WorldCenter;
//var invScale = 1/renderer.Scale;
//var d = (float)(2*Radius*invScale);
//var r = d/2;
if ((Selected || Highlighted || Root.Scene.Options.ShowNames) && !string.IsNullOrEmpty(Name))
{
var gTransform = graphics.Transform;
graphics.ResetTransform();
var myTransform = Matrix23.FromColumns(gTransform.Elements);
var pos = myTransform * center;
var str = Name;
graphics.DrawString(str, renderer.Font, Brushes.Yellow, (float)pos.X, (float)pos.Y);
graphics.Flush();
graphics.Transform = gTransform;
}
}
public void Construct2()
{
Matrix23<double> m = new Matrix23<double>(
1.0, 2.0,
3.0, 4.0,
5.0, 6.0);
Assert.AreEqual(1.0, m.Column0Row0);
Assert.AreEqual(2.0, m.Column1Row0);
Assert.AreEqual(3.0, m.Column0Row1);
Assert.AreEqual(4.0, m.Column1Row1);
Assert.AreEqual(5.0, m.Column0Row2);
Assert.AreEqual(6.0, m.Column1Row2);
Assert.AreEqual(1.0, m.ReadOnlyColumnMajorValues[0]);
Assert.AreEqual(3.0, m.ReadOnlyColumnMajorValues[1]);
Assert.AreEqual(5.0, m.ReadOnlyColumnMajorValues[2]);
Assert.AreEqual(2.0, m.ReadOnlyColumnMajorValues[3]);
Assert.AreEqual(4.0, m.ReadOnlyColumnMajorValues[4]);
Assert.AreEqual(6.0, m.ReadOnlyColumnMajorValues[5]);
}
public void Equals()
{
Matrix23<double> a = new Matrix23<double>(
1.0, 2.0,
3.0, 4.0,
5.0, 6.0);
Matrix23<double> b = new Matrix23<double>(0.0);
Matrix23<double> c = new Matrix23<double>(
1.0, 2.0,
3.0, 4.0,
5.0, 6.0);
Assert.IsTrue(a.Equals(c));
Assert.IsTrue(c.Equals(a));
Assert.IsTrue(a == c);
Assert.IsTrue(c == a);
Assert.IsFalse(c != a);
Assert.IsFalse(c != a);
Assert.IsFalse(a.Equals(b));
Assert.IsFalse(b.Equals(a));
Assert.IsFalse(a == b);
Assert.IsFalse(b == a);
Assert.IsTrue(a != b);
Assert.IsTrue(b != a);
object objA = a;
object objB = b;
object objC = c;
Assert.IsTrue(a.Equals(objA));
Assert.IsTrue(a.Equals(objC));
Assert.IsFalse(a.Equals(objB));
Assert.IsTrue(objA.Equals(objC));
Assert.IsFalse(objA.Equals(objB));
Assert.IsFalse(a.Equals(null));
Assert.IsFalse(a.Equals(5));
}
public void Matrix23()
{
string fs =
@"#version 330
uniform mat2x3 exampleMat23;
out vec3 FragColor;
void main()
{
FragColor = vec3(exampleMat23[0].z, exampleMat23[1].x, 0.0);
}";
using (GraphicsWindow window = Device.CreateWindow(1, 1))
using (Framebuffer framebuffer = TestUtility.CreateFramebuffer(window.Context))
using (ShaderProgram sp = Device.CreateShaderProgram(ShaderSources.PassThroughVertexShader(), fs))
using (VertexArray va = TestUtility.CreateVertexArray(window.Context, sp.VertexAttributes["position"].Location))
{
Matrix23<float> m23 = new Matrix23<float>(
0.0f, 1.0f,
0.0f, 0.0f,
1.0f, 0.0f);
Uniform<Matrix23<float>> exampleMat23 = (Uniform<Matrix23<float>>)sp.Uniforms["exampleMat23"];
Assert.AreEqual("exampleMat23", exampleMat23.Name);
Assert.AreEqual(UniformType.FloatMatrix23, exampleMat23.Datatype);
Assert.AreEqual(new Matrix23<float>(), exampleMat23.Value);
exampleMat23.Value = m23;
Assert.AreEqual(m23, exampleMat23.Value);
window.Context.Framebuffer = framebuffer;
window.Context.Draw(PrimitiveType.Points, 0, 1, new DrawState(TestUtility.CreateRenderStateWithoutDepthTest(), sp, va), new SceneState());
TestUtility.ValidateColor(framebuffer.ColorAttachments[0], 255, 255, 0);
}
}
public void TestGetHashCode()
{
Matrix23<double> a = new Matrix23<double>(
1.0, 2.0,
3.0, 4.0,
5.0, 6.0);
Matrix23<double> b = new Matrix23<double>(0.0);
Matrix23<double> c = new Matrix23<double>(
1.0, 2.0,
3.0, 4.0,
5.0, 6.0);
Assert.AreEqual(a.GetHashCode(), c.GetHashCode());
Assert.AreNotEqual(a.GetHashCode(), b.GetHashCode());
}
