GFXOcclusionQuery

Inheritance diagram for GFXOcclusionQuery ↕

A geometry visibility query object.

Public Types

enum

OcclusionQueryStatus {
  Unset 
  Waiting 
  Error 
  Occluded 
  NotOccluded 
}

The states returned by getStatus() If you modify this enum you should also modify statusToString()

GFXDevice *

mDevice

GFXOcclusionQuery(GFXDevice * device)

~GFXOcclusionQuery()

bool

begin()

Prepares the query returning true if the last query has been processed and more geometry can be issued.

const String

describeSelf()

The resource should put a description of itself (number of vertices, size/width of texture, etc.) in buffer.

void

end()

Called after your geometry is drawn to submit the query for processing.

OcclusionQueryStatus

getStatus(bool block, U32 * data)

Returns the status of the last submitted query.

void

resurrect()

When called the resource should restore all device sensitive information destroyed by zombify()

void

zombify()

When called the resource should destroy all device sensitive information (e.g. D3D resources in D3DPOOL_DEFAULT.

String

statusToString(OcclusionQueryStatus status)

Returns a status string.

A geometry visibility query object.

see:

OcclusionQueryStatus

The states returned by getStatus() If you modify this enum you should also modify statusToString()

GFXDevice * mDevice

GFXOcclusionQuery(GFXDevice * device)

~GFXOcclusionQuery()

begin()

Prepares the query returning true if the last query has been processed and more geometry can be issued.

see:

describeSelf()

Reimplemented from: GFXResource

end()

Called after your geometry is drawn to submit the query for processing.

getStatus(bool block, U32 * data)

Returns the status of the last submitted query.

In general you should avoid blocking for the result until the frame following your query to keep from stalling the CPU.

return:

Status

Parameters:

block	If true CPU will block until the query finishes.
data	Number of pixels rendered, valid only if status returned is NotOccluded.

resurrect()

Reimplemented from: GFXResource

zombify()

Reimplemented from: GFXResource

statusToString(OcclusionQueryStatus status)

Returns a status string.