IRdGeometryIdentificationStream Interface Reference

Inherits IDispatch.

List of all members.

Public Member Functions
HRESULT	GetNumCoords ([out, retval] RtDWORD *dwNumCoords)
HRESULT	SetNumCoords ([in] RtDWORD dwNumCoords)
Properties
RtFloat *	u ([in] RtDWORD dwIndex) [get]
RtFloat	u ([in] RtDWORD dwIndex) [set]
RtFloat *	v ([in] RtDWORD dwIndex) [get]
RtFloat	v ([in] RtDWORD dwIndex) [set]

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Detailed Description

IRdGeometryIdentificationStream specifies 2d coordinates of each triangle vertex:

• used to track triangle vertices during geometry changes.

After entering point edit mode:

• Mesh modifiers can request geometry identification stream to be added to meshes for internal tracking purposes.
• (for example skin uses this data to calculate skinning weights after PE ends).
• During entering PE, stream is filled with planar single line unwrap (coordinates 2x,0, 2x,1, 2x+1,0; x = triangle index).

Note: all geometry tools must process this stream otherwise they must fail.

The stream is part of IRdMesh and is stored in Custom stream group. Stream is identified by STREAMID_GEOMETRY_IDENTIFICATION id.

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Member Function Documentation

HRESULT IRdGeometryIdentificationStream::GetNumCoords

(

[out, retval] RtDWORD *

dwNumCoords

)

Get number of geometry identification coordinates.

Returns:

dwNumCoords [out,retval] Return number of coordinates.

standard HRESULT processing can be applied to returned value.

HRESULT IRdGeometryIdentificationStream::SetNumCoords

(

[in] RtDWORD

dwNumCoords

)

Set number of geometry identification coordinates.

Parameters:

dwNumCoords

[in] Set number of coordinates.

Returns:

standard HRESULT processing can be applied to returned value.

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Property Documentation

RtFloat* IRdGeometryIdentificationStream::u([in] RtDWORD dwIndex) [get]

Get U coordinate of i-th item.

Parameters:

dwIndex

[in] Index item.

Returns:

pVal [out, retval] Filled with U coordinate after successful return.

standard HRESULT processing can be applied to returned value.

RtFloat IRdGeometryIdentificationStream::u([in] RtDWORD dwIndex) [set]

Set U coordinate of i-th item.

Parameters:

	dwIndex	[in] Index item.
	newVal	[in] U coordinate to set.

Returns:

standard HRESULT processing can be applied to returned value.

RtFloat* IRdGeometryIdentificationStream::v([in] RtDWORD dwIndex) [get]

Get V coordinate of i-th item.

Parameters:

dwIndex

[in] Index item.

Returns:

pVal [out, retval] Filled with V coordinate after successful return.

standard HRESULT processing can be applied to returned value.

RtFloat IRdGeometryIdentificationStream::v([in] RtDWORD dwIndex) [set]

Set V coordinate of i-th item.

Parameters:

	dwIndex	[in] Index item.
	newVal	[in] V coordinate to set.

Returns:

standard HRESULT processing can be applied to returned value.