Public API Reference

iRenderManagerTargets Struct Reference

Interface for automatic view-to-texture rendering. More...

#include <iengine/rendermanager.h>

Inheritance diagram for iRenderManagerTargets:

List of all members.

Public Types

enum  TargetFlags { updateOnce = 1, assumeAlwaysUsed = 2, clearScreen = 4 }

Flags for target registration.


Public Member Functions

virtual void MarkAsUsed (iTextureHandle *target)=0
 Manually mark a texture as used.
virtual void RegisterRenderTarget (iTextureHandle *target, iView *view, int subtexture=0, uint flags=0)=0
 Register a texture and view that should be rendered to the texture.
virtual void UnregisterRenderTarget (iTextureHandle *target, int subtexture=0)=0
 Unregister a texture to automatically render to.

Detailed Description

Interface for automatic view-to-texture rendering.

Exposed by render managers which support this functionality.

Definition at line 58 of file rendermanager.h.

Member Enumeration Documentation

Flags for target registration.


Only render to the target once.


Assumes the target is used every frame - means it is rendered to every frame.

If this flag is set, but the texture is actually not used, this is a waste of cycles. Consider manual marking with MarkAsUsed() if the texture is only used some times.

Clear the frame buffer before rendering to it.

Definition at line 63 of file rendermanager.h.

Member Function Documentation

virtual void iRenderManagerTargets::MarkAsUsed ( iTextureHandle target  )  [pure virtual]

Manually mark a texture as used.

Useful when the texture isn't used in the world itself (e.g. for HUD rendering) and thus is not detected as used by the render manager.

virtual void iRenderManagerTargets::RegisterRenderTarget ( iTextureHandle target,
iView view,
int  subtexture = 0,
uint  flags = 0 
) [pure virtual]

Register a texture and view that should be rendered to the texture.

The view is rendered automatically when the texture is used.

target The texture to render to.
view The view to render.
subtexture The subtexture. Typically the face of a cube map texture.
flags Combination of TargetFlags.
If the combination target, subtexture was mapped to another view before that mapping is removed.
virtual void iRenderManagerTargets::UnregisterRenderTarget ( iTextureHandle target,
int  subtexture = 0 
) [pure virtual]

Unregister a texture to automatically render to.

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

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