SceneNode CreateAnnotation(Vector3 start, Vector3 end, Vector3 offset, String text)
{
var line = GeometryBuilder.CreateLine(start + offset, end + offset);
var mesh = FontManager.Instance().CreateMesh(text);
var textNode = new PrimitiveSceneNode(mesh, null);
float scale = 0.015f;
textNode.SetTransform(Matrix4.makeRotationAxis(Vector3.UNIT_X, 3.14159f * 0.5f) * Matrix4.makeScale(scale, scale, 1));
textNode.ComputeBoundingBox(Matrix4.Identity);
float halfW = textNode.GetWorldBBox().getHalfSize().x;
var dist = end.distanceTo(start);
float ratio = (dist * 0.5f - halfW) / dist;
textNode.SetTransform(Matrix4.makeTranslation((start + end) * ratio + offset) * textNode.GetTransform());
var line2 = GeometryBuilder.CreateLine(start, start + offset + new Vector3(0, 0, -2));
var line3 = GeometryBuilder.CreateLine(end, end + offset + new Vector3(0, 0, -2));
GroupSceneNode group = new GroupSceneNode();
group.AddNode(new PrimitiveSceneNode(line, null));
group.AddNode(new PrimitiveSceneNode(line2, null));
group.AddNode(new PrimitiveSceneNode(line3, null));
group.AddNode(textNode);
return(group);
}
public override void Run(RenderControl render)
{
var arc = SketchBuilder.MakeArcOfCircle(new GCirc(GP.XOY(), 10), 0, Math.PI);
var points = new GPntList
{
new GPnt(0, 0, 0),
new GPnt(2, 5, 0),
new GPnt(15, 15, 0)
};
var line = SketchBuilder.MakeBSpline(points);
var extrema = new ExtremaCurveCurve();
extrema.Initialize(arc, line);
int count = extrema.GetPointCount();
for (int ii = 0; ii < count; ++ii)
{
var point = extrema.GetPoint1(ii);
var node = new PrimitiveSceneNode(GeometryBuilder.AtomSphere(), EnumPrimitiveType.TRIANGLES, null);
node.SetTransform(Matrix4.makeTranslation(Vector3.From(point)));
render.ShowSceneNode(node);
}
render.ShowShape(arc, Vector3.Red);
render.ShowShape(line, Vector3.Green);
}
public bool Play(RenderControl render, float time)
{
if (mCurrentIdx >= mPoints.Count)
{
mLineNode.SetVisible(false);
return(false);
}
mTime += time;
if (mTime < 100) //距离上次更新不到100ms，就返回
{
return(true);
}
mTime = 0;
Vector3 target = mPoints[mCurrentIdx];
mLineNode.SetTransform(MakeTransform(mStart, target));
mLineNode.RequstUpdate();
mMotionTrail.SetPosition((uint)mCurrentIdx, target);
mMotionTrail.RequstUpdate();
render.RequestDraw(EnumUpdateFlags.Scene);
++mCurrentIdx;
return(true);
}
public void Create(RenderControl render)
{
// 随便构造些点
float offset = 10.0f;
for (int ii = 0; ii < 10; ++ii)
{
for (int jj = 0; jj < ii; ++jj)
{
mPoints.Add(new Vector3(jj * offset, 100, ii * offset));
}
}
mMotionTrail = new ParticleSceneNode((uint)mPoints.Count, ColorTable.Green, 3.0f);
mCurrentIdx = 0;
render.ShowSceneNode(mMotionTrail);
var lineMaterial = BasicMaterial.Create("myline");
lineMaterial.SetColor(ColorTable.Hex(0xFF0000));
var line = GeometryBuilder.CreateLine(Vector3.Zero, new Vector3(1, 0, 0));
mLineNode = new PrimitiveSceneNode(line, lineMaterial);
mLineNode.SetTransform(MakeTransform(mStart, mPoints[0]));
mLineNode.RequstUpdate();
render.ShowSceneNode(mLineNode);
}
public override void Run(RenderControl render)
{
// add a plane
var mMaterial1 = MeshPhongMaterial.Create("phong.texture");
mMaterial1.SetFaceSide(EnumFaceSide.DoubleSide);
var texture = ImageTexture2D.Create(GetResourcePath("textures/bricks2.jpg"));
mMaterial1.SetColorMap(texture);
var plane = GeometryBuilder.CreatePlane(500, 500);
var planeNode = new PrimitiveSceneNode(plane, mMaterial1);
planeNode.SetTransform(Matrix4.makeTranslation(new Vector3(0, 0, -2.5f)));
planeNode.SetPickable(false);
render.ShowSceneNode(planeNode);
mDevice = new PrimitiveSceneNode(GeometryBuilder.CreateSphere(5), null);
render.ShowSceneNode(mDevice);
mCome = new RigidAnimation();
mCome.Add(new MoveAnimationClip(mDevice, mWorkingPosition, 0, 5));
mGo = new RigidAnimation();
mGo.Add(new MoveAnimationClip(mDevice, new Vector3(-200, -200, 0), 0, 5));
}
public override void Run(RenderControl render)
{
// Create material
var mMaterial1 = MeshPhongMaterial.Create("phong.texture");
mMaterial1.SetFaceSide(EnumFaceSide.DoubleSide);
var texture = ImageTexture2D.Create(GetResourcePath("textures/bricks2.jpg"));
mMaterial1.SetColorMap(texture);
var plane = GeometryBuilder.CreatePlane(500, 500);
var planeNode = new PrimitiveSceneNode(plane, mMaterial1);
planeNode.SetTransform(Matrix4.makeTranslation(new Vector3(0, 0, -100)));
render.ShowSceneNode(planeNode);
var box = GeometryBuilder.CreateBox(100, 100, 200);
var boxNode = new PrimitiveSceneNode(box, mMaterial1);
render.ShowSceneNode(boxNode);
var sphere = GeometryBuilder.CreateSphere(50, 32, 32);
var sphereNode = new PrimitiveSceneNode(sphere, mMaterial1);
sphereNode.SetTransform(Matrix4.makeTranslation(new Vector3(0, 0, 150)));
render.ShowSceneNode(sphereNode);
}
public override void Run(RenderControl render)
{
if (!mLoaded)
{
mLoaded = true;
FontManager.Instance().AddFont("LS", @"C:\Windows\Fonts\STLITI.TTF");
}
{
var fontMaterial = FontMaterial.Create("font-texture-1");
fontMaterial.SetFaceSide(EnumFaceSide.DoubleSide);
fontMaterial.SetColor(new Vector3(1, 1, 0));
fontMaterial.SetBackground(new Vector3(0, 0, 1));
fontMaterial.SetBillboard(true);
var dim = fontMaterial.SetText("Hello 世界!", 128, "LS");
var shape = GeometryBuilder.CreatePlane(dim.x * 0.1f, dim.y * 0.1f);
var node = new PrimitiveSceneNode(shape, fontMaterial);
node.SetPickable(false);
render.ShowSceneNode(node);
}
{
var fixedSizeMaterial = SpriteMaterial.Create("font-mesh-material");
fixedSizeMaterial.SetSizeAttenuation(false);
fixedSizeMaterial.SetColor(ColorTable.Green);
var mesh = FontManager.Instance().CreateMesh("哈哈");
var node = new PrimitiveSceneNode(mesh, fixedSizeMaterial);
var scale = 1 / 2200.0f;
node.SetTransform(Matrix4.makeTranslation(0, 0, 10) * Matrix4.makeScale(scale, scale, scale));
node.SetPickable(false);
render.ShowSceneNode(node);
}
}