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Wizt::RenderBasin::Painter Class Referenceabstract

Base class for paint operations. More...

#include <ocean/Anemonia/RenderBasin.hpp>

Inheritance diagram for Wizt::RenderBasin::Painter:
Wizt::Anemone::SpecializedTentacle< Anemone::Painter > Wizt::Anemone::Tentacle MemCore::ReferenceBase< Tentacle > Wizt::IndexBuffer< Type >::ElementPainter Wizt::RenderBasin::RangedPainter Wizt::GLPainter

Public Member Functions

bool activate (const Anemone &) override
 Activate this tentacle.
 
bool deactivate (const Anemone &) override
 Deactivate this tentacle.
 
virtual bool draw (const Anemone &) const =0
 Central function here is to draw something. This replaces an activate()/deactivate() call.
 
- Public Member Functions inherited from Wizt::Anemone::Tentacle
virtual const char * getSamplerType () const
 If this tentacle refers to some texture sampler in a shader, then hereby return the type of this sampler is it occurs in the code.
 
virtual int getTextureUnit () const
 Get the texture unit number which was specified during construction, if positive then it refers to some texture unit that is used in an associated shader.
 
virtual size_t memsize () const
 Return the memory occupied by this buffer if it occupies memory at all. Otherwise, returns 0 (default).
 
virtual size_t NumberOfElements () const
 Returns the number of elements provided and used by this object, if it refers to countable elements.
 
virtual bool updateValue (VRenderContext &Context)
 Possibly update a tentacle from settings in a context.
 
- Public Member Functions inherited from MemCore::ReferenceBase< Tentacle >
auto getObjectCountID () const noexcept
 Get a unique ID for this object in the given domain.
 
bool isIdentical (const WeakPtr< Tentacle, Tentacle > &PossibleSelf) const noexcept
 Check if this object is identical to the one used by the given pointer.
 
void mkAutoDestructive ()
 Marks this object as being automatically destructed, e.g.
 
refcount_t refcount () const noexcept
 The strong reference count.
 
 ReferenceBase (Tentacle *that) noexcept
 Constructor, initializes reference counter to zero.
 
const auto & self () const
 Return weak pointer to the object self.
 
refcount_t wrefcount () const noexcept
 The weak reference count.
 

Public Attributes

int instancecount = 0
 To enable instanced rendering, e.g.
 
std::forward_list< WeakPtr< RenderBasin::Program > > UsePainterForTheseProgramsOnly
 If this list is not empty, then it contains a list of possible programs that shall be used for using with this painter, instead of using all programs that are attached to some Anemone.
 
- Public Attributes inherited from Wizt::Anemone::Tentacle
Activity_t Activity
 A bit mask telling whether this tentacle should participate in the waving of an Anemone.
 

Additional Inherited Members

- Public Types inherited from MemCore::ReferenceBase< Tentacle >
using reference_domain_t = Tentacle
 The type of the base class.
 
using SelfPtr_t = WeakPtr< Tentacle, Tentacle >
 Type for a pointer to this object itself.
 
- Protected Member Functions inherited from MemCore::ReferenceBase< Tentacle >
virtual void extremeUnction ()
 A virtual function that will be called just before the object is destroyed.
 
ReferenceBaseoperator= (const ReferenceBase &R)
 Protected assignment operator (should not be called).
 
void suicide ()
 Delete this.
 
virtual ~ReferenceBase ()
 Virtual destructor.
 

Detailed Description

Base class for paint operations.

Virtualizes calls such as glDrawArrays().

Member Data Documentation

◆ instancecount

int Wizt::RenderBasin::Painter::instancecount = 0

To enable instanced rendering, e.g.

via glDrawArraysInstanced() .

Referenced by Wizt::GLPainter::draw().