point()

MAYAFLUX_API Form< glm::vec2 > MayaFlux::Portal::Forma::Geometry::point	(	glm::vec3	color = glm::vec3(1.0F),
		float	size = 10.0F,
		float	hit_radius = 0.04F
	)

Geometry function for a positioned point in NDC space.

Value type is glm::vec2 (NDC position). Renders a single PointVertex and sets a circular hit region centered on the position. Suitable as a cursor follower, node handle, or any draggable point primitive.

Parameters

color	Point color.
size	Point size in pixels.
hit_radius	Hit region radius in NDC units.

Definition at line 128 of file FormFactory.cpp.

{
    GeometryFn<glm::vec2> fn = [color, size, hit_radius](glm::vec2 pos, std::vector<uint8_t>& out, Element& el) {
        write_verts(out, Kakshya::PointVertex {
                             .position = { pos.x, pos.y, 0.0F },
                             .color = color,
                             .size = size,
                         });
        el.bounds_hint = Kinesis::AABB2D::from_ndc(pos, glm::vec2(hit_radius));
        el.contains = Kinesis::circular_bounds(pos, hit_radius);
    };
 
    return { std::move(fn),
        Graphics::PrimitiveTopology::POINT_LIST,
        sizeof(Kakshya::PointVertex),
        follow_move() };
}

References MayaFlux::Kinesis::circular_bounds(), color, follow_move(), MayaFlux::Kinesis::AABB2D::from_ndc(), out, MayaFlux::Portal::Graphics::POINT_LIST, MayaFlux::Kakshya::PointVertex::position, size, and write_verts().

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