protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Closed += ShaderTest_Closed;
gl3dcontroller = new Controller3D();
gl3dcontroller.PaintObjects = ControllerDraw;
gl3dcontroller.ZoomDistance = 100F;
gl3dcontroller.MatrixCalc.PerspectiveNearZDistance = 0.1f;
glwfc.BackColor = Color.FromArgb(0, 0, 20);
gl3dcontroller.Start(glwfc, new Vector3(0, 0, 0), new Vector3(120f, 0, 0f), 1F);
gl3dcontroller.KeyboardTravelSpeed = (ms, eyedist) =>
{
return((float)ms / 20.0f);
};
// this bit is eye candy just to show its working
items.Add(new GLColorShaderWorld(), "COSW");
GLRenderState rl = GLRenderState.Lines(1);
rObjects.Add(items.Shader("COSW"),
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl,
GLShapeObjectFactory.CreateLines(new Vector3(-40, 0, -40), new Vector3(-40, 0, 40), new Vector3(10, 0, 0), 9),
new Color4[] { Color.Red, Color.Red, Color.Green, Color.Green })
);
rObjects.Add(items.Shader("COSW"),
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl,
GLShapeObjectFactory.CreateLines(new Vector3(-40, 0, -40), new Vector3(40, 0, -40), new Vector3(0, 0, 10), 9),
new Color4[] { Color.Red, Color.Red, Color.Green, Color.Green })
);
items.Add(new GLTexture2D(Properties.Resources.moonmap1k, SizedInternalFormat.Rgba8), "moon");
items.Add(new GLTexturedShaderObjectTranslation(), "TEX");
items.Add(new GLMatrixCalcUniformBlock(), "MCUB"); // def binding of 0
// Pass vertex data thru a vertex shader which stores into a block
vecoutbuffer = new GLStorageBlock(30, true);
vecoutbuffer.AllocateBytes(32000, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicCopy); // set size of vec buffer
ComputeShader csn = new ComputeShader();
csn.Run();
GLMemoryBarrier.All();
// test consistency between row/columns of matrix4 of code and glsl
int count = vecoutbuffer.ReadInt(0);
System.Diagnostics.Debug.WriteLine("Count is " + count);
{
float[] mat4 = vecoutbuffer.ReadFloats(16, 16);
System.Diagnostics.Debug.WriteLine("Compare mat4 constructor via order of floats:");
for (int i = 0; i < mat4.Length; i++)
{
System.Diagnostics.Debug.Write(string.Format("{0} = {1}, ", i, mat4[i]));
}
System.Diagnostics.Debug.WriteLine("");
}
{
Vector2[] vec2 = vecoutbuffer.ReadVector2s(4, 2);
System.Diagnostics.Debug.WriteLine($"Vec2a = inc {vec2[0].X.Degrees()} az {vec2[0].Y.Degrees()}");
}
Matrix4[] mat4r = vecoutbuffer.ReadMatrix4s(32, 32); // read all matrixes
System.Diagnostics.Debug.WriteLine("Test mat constructor =" + Environment.NewLine + mat4r[0].ToString());
System.Diagnostics.Debug.WriteLine("Row0 is " + mat4r[0].Row0.ToString());
System.Diagnostics.Debug.WriteLine("Should be 20000 = " + mat4r[0][2, 3]);
int id = 1;
System.Diagnostics.Debug.WriteLine("Identity matrix = " + Environment.NewLine + mat4r[id++].ToString());
{
Matrix4 xrotpi4 = Matrix4.CreateRotationX(0.7853f); // demo that Matrix4.Create is the same values as mat4rotatex
System.Diagnostics.Debug.WriteLine("Rotate X Pi/4 =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], xrotpi4) + Environment.NewLine + mat4r[id].ToString());
id++;
}
{
Matrix4 yrotpi4 = Matrix4.CreateRotationY(0.7853f);
System.Diagnostics.Debug.WriteLine("Rotate Y Pi/4 =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], yrotpi4) + Environment.NewLine + mat4r[id].ToString());
id++;
}
{
Matrix4 zrotpi4 = Matrix4.CreateRotationZ(0.7853f);
System.Diagnostics.Debug.WriteLine("Rotate Z Pi/4 =" + GLStaticsMatrix4.ApproxEquals(mat4r[4], zrotpi4) + Environment.NewLine + mat4r[4].ToString());
id++;
}
{ // test:
//Matrix4 xrot = Matrix4.CreateRotationX((float)(Math.PI / 2));
//Matrix4 r1 = new Matrix4(0, 0, 0, 0,
// 0, 0, 0, 0,
// 0, 0, 1, 0,
// 0, 0, 0, 1);
//r1 = new Matrix4(new Matrix3())
//Matrix4 r2 = r1 * xrot;
//System.Diagnostics.Debug.WriteLine($"rotate z=+1 around x by 90\n{r1}\n{r2} ");
}
// X Y
{
Matrix4 xrot = Matrix4.CreateRotationX(0.7853f); // demo that Matrix4.Create is the same values as mat4rotatex
Matrix4 yrot = Matrix4.CreateRotationY(0.5f);
Matrix4 res = Matrix4.Identity;
res = res * xrot;
res = res * yrot;
System.Diagnostics.Debug.WriteLine("Rotate XY Manu =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], res) + Environment.NewLine + mat4r[id].ToString());
id++;
System.Diagnostics.Debug.WriteLine("Rotate XY Auto =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], res) + Environment.NewLine + mat4r[id].ToString());
id++;
res = Matrix4.Identity;
res = res * yrot;
res = res * xrot;
System.Diagnostics.Debug.WriteLine("Rotate YX Manu =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], res) + Environment.NewLine + mat4r[id].ToString());
id++;
System.Diagnostics.Debug.WriteLine("Rotate YX Auto =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], res) + Environment.NewLine + mat4r[id].ToString());
id++;
}
// mat4 translation
{
Matrix4 trans = Matrix4.CreateTranslation(10, 20, 30);
System.Diagnostics.Debug.WriteLine("Translation =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], trans) + Environment.NewLine + mat4r[id].ToString());
id++;
}
// mat4translation with matrix
{
Matrix4 yrot05 = Matrix4.CreateRotationY(0.5f);
Matrix4 trans = Matrix4.CreateTranslation(10, 20, 30);
Matrix4 rotplustrans = Matrix4.Mult(yrot05, trans);
System.Diagnostics.Debug.WriteLine("Rot Translation =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], rotplustrans) + Environment.NewLine + mat4r[id].ToString());
id++;
}
{
Matrix4 trans = Matrix4.CreateTranslation(10, 20, 30);
Matrix4 rotxm90 = Matrix4.CreateRotationX(-90f.Radians());
Matrix4 roty90 = Matrix4.CreateRotationY(90f.Radians());
Matrix4 mscale = Matrix4.CreateScale(1, 2, 3);
Matrix4 res = Matrix4.Identity;
res = res * mscale;
res = res * rotxm90;
res = res * roty90;
res = res * trans;
System.Diagnostics.Debug.WriteLine("Trans rot scale =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], res) + Environment.NewLine + mat4r[id].ToString());
id++;
//System.Diagnostics.Debug.WriteLine(transrotscale.ToString());
System.Diagnostics.Debug.WriteLine("Trans rot scale2 =" + GLStaticsMatrix4.ApproxEquals(mat4r[id], res) + Environment.NewLine + mat4r[id].ToString());
id++;
}
Vector4[] vec4r = vecoutbuffer.ReadVector4s(32 + 13 * 64, 2); // read all vec4 (N matrices between)
{
System.Diagnostics.Debug.WriteLine($"Vec4 {vec4r[0]}");
}
{
StringMatrix rox = new StringMatrix("1", "0", "0", "0",
"0", "cx", "sx", "0",
"0", "-sx", "cx", "0",
"0", "0", "0", "1");
StringMatrix roxm90 = new StringMatrix("1", "0", "0", "0",
"0", "0", "-1", "0",
"0", "1", "0", "0",
"0", "0", "0", "1");
StringMatrix roy = new StringMatrix("cy", "0", "-sy", "0",
"0", "1", "0", "0",
"sy", "0", "cy", "0",
"0", "0", "0", "1");
StringMatrix res = StringMatrix.Mult(roxm90, roy);
string r = res.ToString(true);
System.Diagnostics.Debug.WriteLine($"{r}");
r = res.ToList();
System.Diagnostics.Debug.WriteLine($"{r}");
res = StringMatrix.Mult(rox, roy);
r = res.ToString(true);
System.Diagnostics.Debug.WriteLine($"{r}");
StringVector4 v4a = new StringVector4("a", "-1", "c", "d");
StringVector4 resv4 = StringMatrix.Mult(rox, v4a);
r = resv4.ToString(true);
System.Diagnostics.Debug.WriteLine($"{r}");
}
// System.Di
// agnostics.Debug.WriteLine(rotplustransscale.ToString());
}
