Magnum::Shaders::LineDrawUniform struct new in Git master
#include <Magnum/Shaders/Line.h>

Per-draw uniform for line shaders.

Together with the generic TransformationProjectionUniform2D / TransformationProjectionUniform3D contains parameters that are specific to each draw call. Material-related properties are expected to be shared among multiple draw calls and thus are provided in a separate LineMaterialUniform structure, referenced by materialId.

Constructors, destructors, conversion operators

LineDrawUniform(DefaultInitT = DefaultInit) explicit constexpr noexcept: Construct with default parameters.
LineDrawUniform(NoInitT) explicit noexcept: Construct without initializing the contents.

Public variables

UnsignedShort materialId: Material ID.
UnsignedInt objectId: Object ID.

Convenience setters

Provided to allow the use of method chaining for populating a structure in a single expression, otherwise equivalent to accessing the fields directly. Also guaranteed to provide backwards compatibility when packing of the actual fields changes.

auto setMaterialId(UnsignedInt id) -> LineDrawUniform&: Set the materialId field.
auto setObjectId(UnsignedInt id) -> LineDrawUniform&: Set the objectId field.

Function documentation

LineDrawUniform& Magnum::Shaders::LineDrawUniform::setMaterialId(UnsignedInt id)

Set the materialId field.

Returns	Reference to self (for method chaining)

LineDrawUniform& Magnum::Shaders::LineDrawUniform::setObjectId(UnsignedInt id)

Set the objectId field.

Returns	Reference to self (for method chaining)

Variable documentation

UnsignedShort Magnum::Shaders::LineDrawUniform::materialId

Material ID.

References a particular material from a LineMaterialUniform array. Useful when an UBO with more than one material is supplied or in a multi-draw scenario. Should be less than the material count passed to LineGL::Configuration::setMaterialCount(), if material count is 1, this field is assumed to be 0 and isn't even read by the shader. Default value is 0, meaning the first material gets used.

UnsignedInt Magnum::Shaders::LineDrawUniform::objectId

Object ID.

Used only for the object ID framebuffer output, not to access any other uniform data. Default value is 0.

Used only if LineGL::Flag::ObjectId is enabled, ignored otherwise. If LineGL::Flag::InstancedObjectId is enabled as well, this value is added to the ID coming from the LineGL::ObjectId attribute.