IDrawable Interface Reference

Base interface for all renderable objects in the scene. More...

#include <IDrawable.h>

Inheritance diagram for IDrawable:

Public Member Functions
virtual	~IDrawable ()=default
	Virtual destructor for proper cleanup of derived classes.
virtual Shader *	getShader () const =0
	Gets the shader used to render this object.
virtual Mesh *	getMesh () const =0
	Gets the mesh geometry for this object.
virtual uint32_t	getObjectID () const =0
	Gets the unique identifier for this object.

Detailed Description

Base interface for all renderable objects in the scene.

IDrawable defines the minimal contract for objects that can be rendered. It provides access to the core rendering resources (shader, mesh, object ID) without specifying how rendering is performed.

Derived interfaces (IInstancedDrawable, ICustomDrawable) define specific rendering strategies:

• IInstancedDrawable: Objects rendered via GPU instancing (batched)
• ICustomDrawable: Objects with specialized rendering logic

This design allows Scene::draw() to efficiently batch compatible objects while supporting specialized rendering when needed.

Note

Objects must implement either IInstancedDrawable or ICustomDrawable, not IDrawable directly.

See also

IInstancedDrawable

ICustomDrawable

Scene::draw()

Definition at line 33 of file IDrawable.h.

Constructor & Destructor Documentation

~IDrawable()

virtual IDrawable::~IDrawable ( )

virtualdefault

Virtual destructor for proper cleanup of derived classes.

Member Function Documentation

getMesh()

virtual Mesh * IDrawable::getMesh ( ) const

pure virtual

Gets the mesh geometry for this object.

The mesh is used as part of the batch key for instanced rendering, grouping objects that share the same shader and mesh.

Returns

Pointer to the Mesh object. Must not be null.

See also

ResourceManager::getMesh()

Scene::draw()

Implemented in Gizmo, SceneObject, Colliders, Forces, and PathTraces.

getObjectID()

virtual uint32_t IDrawable::getObjectID ( ) const

pure virtual

Gets the unique identifier for this object.

This ID is used for:

• Object picking and selection
• Hover state highlighting via shader uniforms
• Per-instance identification in the rendering pipeline

Returns

The object's unique identifier.

See also

Scene::allocateObjectID()

Scene::freeObjectID()

Implemented in Gizmo, SceneObject, Colliders, Forces, and PathTraces.

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getShader()

virtual Shader * IDrawable::getShader ( ) const

pure virtual

Gets the shader used to render this object.

The shader is used as part of the batch key for instanced rendering, grouping objects that share the same shader and mesh.

Returns

Pointer to the Shader object. Must not be null.

See also

ResourceManager::getShader()

Scene::draw()

Implemented in Gizmo, SceneObject, Colliders, Forces, and PathTraces.

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The documentation for this interface was generated from the following file:

• src/graphics/core/IDrawable.h