public void TestCalculateIntersections()
{
var game = new DX11Game();
game.InitDirectX();
var size = 64;
var target = new GPUHermiteCalculator(game);
var signsTex = target.CreateDensitySignsTexture(size);
target.WriteHermiteSigns(size, new Vector3(), new Vector3(), "", signsTex);
var intersectionsTex = target.CreateIntersectionsTexture(size);
var normals1Tex = target.CreateNormalsTexture(size);
var normals2Tex = target.CreateNormalsTexture(size);
var normals3Tex = target.CreateNormalsTexture(size);
target.WriteHermiteIntersections(size, signsTex, intersectionsTex, normals1Tex, normals2Tex, normals3Tex);
signsTex.SaveToImageSlices(game, TWDir.Test.CreateSubdirectory("DualContouring.GPU/Signs"));
intersectionsTex.SaveToImageSlices(game, TWDir.Test.CreateSubdirectory("DualContouring.GPU/Intersections"));
normals1Tex.SaveToImageSlices(game, TWDir.Test.CreateSubdirectory("DualContouring.GPU/Normals1"));
normals2Tex.SaveToImageSlices(game, TWDir.Test.CreateSubdirectory("DualContouring.GPU/Normals2"));
normals3Tex.SaveToImageSlices(game, TWDir.Test.CreateSubdirectory("DualContouring.GPU/Normals3"));
}
public void TestInteractive()
{
var engine = EngineFactory.CreateEngine();
var game = TW.Graphics;
var size = 32;
var offset = new Vector3(0, 0, 0);
var scaling = new Vector3(1, 1, 1);
var density = "20-v.y";
var target = new GPUHermiteCalculator(game);
var tex3d = target.CreateDensitySignsTexture(size);
engine.AddSimulator(() =>
{
target.WriteHermiteSigns(size, offset, scaling, density, tex3d);
if (TW.Graphics.Keyboard.IsKeyPressed(Key.F))
{
tex3d.SaveToImageSlices(game, TWDir.Test.CreateSubdirectory("DualContouring.GPU"));
}
TW.Graphics.Device.ImmediateContext.ClearState();
TW.Graphics.SetBackbuffer();
}, "Generate");
//tex3d.SaveToImageSlices(game, TWDir.Test.CreateSubdirectory("DualContouring.GPU"));
}
public void TestCalculateDensityGridSigns()
{
var game = new DX11Game();
game.InitDirectX();
var size = 512;
var offset = new Vector3(0, 0, 0);
var scaling = new Vector3(1, 1, 1);
var density = "20-v.y";
var target = new GPUHermiteCalculator(game);
var tex = target.CreateDensitySignsTexture(size);
target.WriteHermiteSigns(size, offset, scaling, density, tex);
tex.SaveToImageSlices(game, TWDir.Test.CreateSubdirectory("DualContouring.GPU/Signs"));
}
public void TestToHermiteGrid()
{
var size = 128;
var offset = new Vector3(0, 0, 0);
var scaling = new Vector3(1, 1, 1);
var density = "20-v.y";
var target = new GPUHermiteCalculator(TW.Graphics);
var signsTex = target.CreateDensitySignsTexture(size);
target.WriteHermiteSigns(size, offset, scaling, density, signsTex);
var intersectionsTex = target.CreateIntersectionsTexture(size);
var normals1Tex = target.CreateNormalsTexture(size);
var normals2Tex = target.CreateNormalsTexture(size);
var normals3Tex = target.CreateNormalsTexture(size);
target.WriteHermiteIntersections(size, signsTex, intersectionsTex, normals1Tex, normals2Tex, normals3Tex);
signsTex.SaveToImageSlices(TW.Graphics, TWDir.Test.CreateSubdirectory("DualContouring.GPU/ToHermite/Signs"));
intersectionsTex.SaveToImageSlices(TW.Graphics, TWDir.Test.CreateSubdirectory("DualContouring.GPU/ToHermite/Intersections"));
normals1Tex.SaveToImageSlices(TW.Graphics, TWDir.Test.CreateSubdirectory("DualContouring.GPU/ToHermite/Normals1"));
normals2Tex.SaveToImageSlices(TW.Graphics, TWDir.Test.CreateSubdirectory("DualContouring.GPU/ToHermite/Normals2"));
normals3Tex.SaveToImageSlices(TW.Graphics, TWDir.Test.CreateSubdirectory("DualContouring.GPU/ToHermite/Normals3"));
var signs = target.ReadDataThroughStageBuffer(signsTex);
var intersections = target.ReadDataThroughStageBuffer(intersectionsTex);
var normals1 = target.ReadDataThroughStageBuffer(normals1Tex);
var normals2 = target.ReadDataThroughStageBuffer(normals2Tex);
var normals3 = target.ReadDataThroughStageBuffer(normals3Tex);
TW.Graphics.Device.ImmediateContext.ClearState();
TW.Graphics.SetBackbuffer();
var grid = HermiteDataGrid.CopyGrid(new DelegateHermiteGrid(
delegate(Point3 p)
{
p.Y = size - 1 - p.Y;
return //(p.X >= size || p.Y >= size || p.Z >= size)
((p.X >= size || p.Y < 0 || p.Z >= size)
? false
: signs[(p.X + size * (p.Y + size * p.Z)) * 4] == 0);
},
delegate(Point3 p, int edge)
{
p.Y = size - 1 - p.Y;
if (edge < 0 || edge > 2)
{
throw new InvalidOperationException();
}
// Assume edges 0,1,2 are 0+x,0+y,0+z
int bufferOffset = (p.X + size * (p.Y + size * p.Z)) * 4;
var norm = new Vector3();
byte[] nBuffer = null;
switch (edge)
{
case 0:
nBuffer = normals1;
break;
case 1:
nBuffer = normals2;
break;
case 2:
nBuffer = normals3;
break;
}
norm.X = nBuffer[bufferOffset + 0] / 255f;
norm.Y = nBuffer[bufferOffset + 1] / 255f;
norm.Z = nBuffer[bufferOffset + 2] / 255f;
norm = (norm - new Vector3(0.5f)) * 2;
/*
* // packing code with z removal, for later use maybe
* var sign = (normals2[bufferOffset + 2] & (1 << edge)) > 0 ? 1 : -1;
* var xsqysq = norm.X * norm.X + norm.Y * norm.Y;
* if (xsqysq > 1) xsqysq = 1;
* if (xsqysq < 0) xsqysq = 0;
* norm.Z = sign * (float)Math.Sqrt(1 - xsqysq);*/
//if (Math.Abs(norm.Length() - 1) > 0.01) throw new InvalidOperationException();
float intersection = intersections[bufferOffset + edge] / 255f;
return(new Vector4(norm, intersection));
},
new Point3(size, size, size)));
var env = new DualContouringTestEnvironment();
env.CameraLightSimulator.Light.LightRadius = 300;
env.CameraLightSimulator.Light.LightIntensity = 1;
env.Grid = grid;
env.AddToEngine(EngineFactory.CreateEngine());
}