Unigine.Primitives Class
This class contains methods enabling you to create geometry primitives - dynamic meshes of the predefined forms, or add surfaces of the predefined forms to already existing dynamic meshes.
Usage Example#
Here is a small example demonstrating how to create a capsule primitive and add a box surface to it:
Source code (C#)
// Creating a capsule-shape primitive with the specified parameters
ObjectMeshDynamic MyPrimitive = Primitives.CreateCapsule(0.5f, 3, 16, 32);
// Adding a box-shape surface to the created capsule
Primitives.AddBoxSurface(MyPrimitive, new vec3(2.0f), mat4.IDENTITY);Primitives Class
Members
ObjectMeshDynamic CreateBox ( vec3 size ) #
Creates a dynamic mesh in a form of a box.Arguments
- vec3 size - Box size along the X, Y and Z axes.
Return value
ObjectMeshDynamic instance.ObjectMeshDynamic CreateCapsule ( float radius, float height, int stacks = 16, int slices = 32 ) #
Creates a dynamic mesh in a form of a capsule.Arguments
- float radius - Capsule radius.
- float height - Capsule height.
- int stacks - Number of stacks that divide the capsule radially.
- int slices - Number of slices that divide the capsule horizontally.
Return value
ObjectMeshDynamic instance.ObjectMeshDynamic CreateCylinder ( float radius, float height, int stacks = 1, int slices = 32 ) #
Creates a dynamic mesh in a form of a cylinder.Arguments
- float radius - Cylinder radius.
- float height - Cylinder height.
- int stacks - Number of stacks that divide the cylinder radially.
- int slices - Number of slices that divide the cylinder horizontally.
Return value
ObjectMeshDynamic instance.ObjectMeshDynamic CreateDodecahedron ( float radius ) #
Creates a dynamic mesh in a form of a dodecahedron.Arguments
- float radius - Dodecahedron radius.
Return value
ObjectMeshDynamic instance.ObjectMeshDynamic CreateIcosahedron ( float radius ) #
Creates a dynamic mesh in a form of an icosahedron.Arguments
- float radius - Icosahedron radius.
Return value
ObjectMeshDynamic instance.ObjectMeshDynamic CreatePlane ( float width, float height, float step ) #
Creates a dynamic mesh in a form of a plane. It is divided into equal squares whose size is defined by the given step.Arguments
- float width - Plane width.
- float height - Plane height.
- float step - Step of surface subdivision (vertical and horizontal).
Return value
ObjectMeshDynamic instance.ObjectMeshDynamic CreatePrism ( float size_0, float size_1, float height, int sides = 8 ) #
Creates a dynamic mesh in a form of a prism.Arguments
- float size_0 - Radius of the circle circumscribed about the top prism base.
- float size_1 - Radius of the circle circumscribed about the bottom prism base.
- float height - Height of the prism.
- int sides - Number of the prism faces.
Return value
ObjectMeshDynamic instance.ObjectMeshDynamic CreateSphere ( float radius, int stacks = 16, int slices = 32 ) #
Creates a dynamic mesh in a form of a sphere.Arguments
- float radius - Sphere radius.
- int stacks - Number of stacks that divide the sphere radially.
- int slices - Number of slices that divide the sphere horizontally.
Return value
ObjectMeshDynamic instance.void AddBoxSurface ( ObjectMeshDynamic object, vec3 size, mat4 transform ) #
Appends a box of the specified size to ObjectMeshDynamic.Arguments
- ObjectMeshDynamic object - ObjectMeshDynamic instance.
- vec3 size - Box size along the X, Y and Z axes.
- mat4 transform - Box transformation matrix.
void AddCapsuleSurface ( ObjectMeshDynamic object, float radius, float height, mat4 transform, int stacks = 16, int slices = 32 ) #
Appends a capsule of the specified size to ObjectMeshDynamic. The stacks and slices specify the surface's subdivision.Arguments
- ObjectMeshDynamic object - ObjectMeshDynamic instance.
- float radius - Capsule radius.
- float height - Capsule height along the central axis.
- mat4 transform - Capsule transformation matrix.
- int stacks - Number of stacks that divide the capsule radially.
- int slices - Number of slices that divide the capsule horizontally.
void AddCylinderSurface ( ObjectMeshDynamic object, float radius, float height, mat4 transform, int stacks = 1, int slices = 32 ) #
Appends a cylinder of the specified size to ObjectMeshDynamic. The stacks and slices specify the surface's subdivision.Arguments
- ObjectMeshDynamic object - ObjectMeshDynamic instance.
- float radius - Cylinder radius.
- float height - Cylinder height.
- mat4 transform - Cylinder transformation matrix.
- int stacks - Number of stacks that divide the cylinder radially.
- int slices - Number of slices that divide the cylinder horizontally.
void AddDodecahedronSurface ( ObjectMeshDynamic object, float radius, mat4 transform ) #
Appends a dodecahedron (a polyhedron with twelve flat faces) of the specified size to ObjectMeshDynamic.Arguments
- ObjectMeshDynamic object - ObjectMeshDynamic instance.
- float radius - Dodecahedron radius.
- mat4 transform - Transformation matrix.
void AddIcosahedronSurface ( ObjectMeshDynamic object, float radius, mat4 transform ) #
Appends a icosahedron (a polyhedron with twenty flat faces) of the specified size to ObjectMeshDynamic.Arguments
- ObjectMeshDynamic object - ObjectMeshDynamic instance.
- float radius - Icosahedron radius.
- mat4 transform - Transformation matrix.
void AddPlaneSurface ( ObjectMeshDynamic object, float width, float height, float step, mat4 transform ) #
Appends a plane surface to the dynamic mesh. The plane is divided into equal squares, size of which is defined by the given step.Arguments
- ObjectMeshDynamic object - ObjectMeshDynamic instance.
- float width - Width of the plane.
- float height - Height of the plane.
- float step - Step of surface subdivision (vertical and horizontal).
- mat4 transform - Plane transformation matrix.
void AddPrismSurface ( ObjectMeshDynamic object, float size_0, float size_1, float height, mat4 transform, int sides = 8 ) #
Appends a prism to the dynamic mesh.Arguments
- ObjectMeshDynamic object - ObjectMeshDynamic instance.
- float size_0 - Radius of the circle circumscribed about the top prism base.
- float size_1 - Radius of the circle circumscribed about the bottom prism base.
- float height - Dimension of the prism's central axis.
- mat4 transform - Prism transformation matrix.
- int sides - Number of the prism faces.
void AddSphereSurface ( ObjectMeshDynamic object, float radius, mat4 transform, int stacks = 16, int slices = 32 ) #
Appends a sphere surface to the dynamic mesh. The stacks and slices specify the surface's subdivision.Arguments
- ObjectMeshDynamic object - ObjectMeshDynamic instance.
- float radius - Sphere radius.
- mat4 transform - Transformation matrix.
- int stacks - Number of stacks that divide the sphere radially.
- int slices - Number of slices that divide the sphere horizontally.
Last update:
2022-04-06
Help improve this article
Was this article helpful?
(or select a word/phrase and press Ctrl+Enter)