self:set_emission_shape

local status = self:set_emission_shape(
    shape,
    radius = 1,
    inner_radius = 0,
    height = 1
)

Type	Name	Description
`particle.gpu.emission_shape`	shape	Emission shape to apply
`float` \| `vector3`	radius	Size of the shape, depending on `shape`: • `SPHERE` / `SPHERE_SURFACE` - radius as a `float` • `BOX` - extents as `{x, y, z}` • `RING` - radius as a `float`
`float`	inner_radius	Inner radius of the ring, only used by `RING`
`float`	height	Height of the ring, only used by `RING`

Type	Name	Description
`bool`	status	`true` on successful execution, `false` otherwise

Emit from a sphere

local entity = particle.gpu.create()

entity:set_emission_shape(particle.gpu.emission_shape.SPHERE, 0.5)

Emit from a wide, flat box

local entity = particle.gpu.create()

entity:set_emission_shape(particle.gpu.emission_shape.BOX, {1, 0.5, 1})

Emit from a ring

local entity = particle.gpu.create()

entity:set_emission_shape(particle.gpu.emission_shape.RING, 2, 1.5, 0.2)