public TreeTemplate(
int sliceCount,
int stackDivision,
int coneCount,
float height,
float radius,
float radAdd
)
{
var attributePosition = new Attribute(VertexUsage.Position, VertexAttribPointerType.Float, 0, 3);
var attributeNormal = new Attribute(VertexUsage.Normal, VertexAttribPointerType.Float, 0, 3); /* content normals */
VertexFormat vertexFormat = new VertexFormat();
vertexFormat.Add(attributePosition);
vertexFormat.Add(attributeNormal);
this.sliceCount = sliceCount;
this.stackDivision = stackDivision;
this.coneCount = coneCount;
this.height = height;
this.radius = radius;
this.radAdd = radAdd;
float coneHeight = height / (float)coneCount;
Matrix4 rotZ = Matrix4.CreateRotation(
RenderStack.Math.Conversions.DegreesToRadians(90.0f),
Vector3.UnitZ
);
float cylHeight = coneHeight;
float cylRadius = height / 20.0f;
Geometry cylinderGeometry = new RenderStack.Geometry.Shapes.Cylinder(-cylHeight, cylHeight, cylRadius, sliceCount);
cylinderGeometry.Transform(rotZ);
GeometryMesh cylinderMesh = new GeometryMesh(cylinderGeometry, NormalStyle.CornerNormals, vertexFormat);
Shape cylinderShape = new CylinderShape(cylHeight, cylRadius);
cylinderMesh.GetMesh.Name = "cylinder";
meshes.Add(cylinderMesh);
shapes.Add(cylinderShape);
for (int c = 0; c < coneCount; c++)
{
float topRadius = (coneCount - 1 - c) * radius / (float)coneCount;
float bottomRadius = topRadius + radAdd;
float R = bottomRadius;
float r = topRadius;
float fullConeHeight = (R * coneHeight) / (R - r);
float minX = -fullConeHeight / 3.0f;
float maxX = 2.0f * fullConeHeight / 3.0f;
float offset = -minX;
Geometry coneGeometry = new RenderStack.Geometry.Shapes.Cone(minX, maxX, bottomRadius, 0.0f, true, true, sliceCount, stackDivision);
coneGeometry.Transform(rotZ);
GeometryMesh coneMesh = new GeometryMesh(coneGeometry, NormalStyle.CornerNormals, vertexFormat);
Shape coneShape = new ConeShape(fullConeHeight, R);
coneMesh.GetMesh.Name = "cone" + c.ToString();
meshes.Add(coneMesh);
shapes.Add(coneShape);
}
}
public void AddSimpleScene()
{
// Shapes here have local 0,0,0 at center of mass
Geometry cubeGeometry = new RenderStack.Geometry.Shapes.Cube(1.0f, 1.0f, 1.0f);
GeometryMesh cubeMesh = new GeometryMesh(cubeGeometry, NormalStyle.PolygonNormals);
GeometryMesh sphereMesh = new GeometryMesh(
new RenderStack.Geometry.Shapes.Sphere(0.75, 20, 12),
NormalStyle.CornerNormals
);
Geometry cylinderGeometry = new RenderStack.Geometry.Shapes.Cylinder(-0.5f, 0.5f, 0.5f, 24);
cylinderGeometry.Transform(
Matrix4.CreateRotation(
Conversions.DegreesToRadians(90.0f),
Vector3.UnitZ
)
);
GeometryMesh cylinderMesh = new GeometryMesh(cylinderGeometry, NormalStyle.CornerNormals);
Geometry coneGeometry = new RenderStack.Geometry.Shapes.Cone(-1.0f / 3.0f, 2.0f / 3.0f, 0.75f, 0.0f, true, false, 24, 10);
coneGeometry.Transform(
Matrix4.CreateRotation(
Conversions.DegreesToRadians(90.0f),
Vector3.UnitZ
)
);
GeometryMesh coneMesh = new GeometryMesh(coneGeometry, NormalStyle.CornerNormals);
/* Models */
float gap = 2.5f;
Material pearl = materialManager["pearl"];
Material gold = materialManager["gold"];
Material red = materialManager["red"];
Material green = materialManager["green"];
Material cyan = materialManager["cyan"];
Material blue = materialManager["blue"];
Material magenta = materialManager["magenta"];
Material pink = materialManager["pink"];
AddModel(new Model("cube", cubeMesh, pearl, -3.5f * gap, 0.5f, 0.0f));
AddModel(new Model("box", cubeMesh, gold, -2.5f * gap, 0.5f, 0.0f));
AddModel(new Model("sphere", sphereMesh, red, -1.5f * gap, 0.75f, 0.0f));
AddModel(new Model("sphere", sphereMesh, green, -0.5f * gap, 0.75f, 0.0f));
AddModel(new Model("cylinder", cylinderMesh, cyan, 0.5f * gap, 0.5f, 0.0f));
AddModel(new Model("cylinder", cylinderMesh, blue, 1.5f * gap, 0.5f, 0.0f));
AddModel(new Model("cone", coneMesh, magenta, 2.5f * gap, 1.0f / 3.0f, 0.0f));
AddModel(new Model("cone", coneMesh, pink, 3.5f * gap, 1.0f / 3.0f, 0.0f));
}