ChannelData Struct Reference

#include <c4d_shader.h>

Public Member Functions
	ChannelData ()
	ChannelData (BaseVolumeData *t_vd)
Int32	GetCurrentCPU ()

Public Attributes
Vector	p
Vector	n
Vector	d
Float	t
Int32	texflag
VolumeData *	vd
Float	off
Float	scale

Constructor & Destructor Documentation

ChannelData() [1/2]

ChannelData

(

)

Default constructor.

ChannelData() [2/2]

ChannelData ( BaseVolumeData *  t_vd )

explicit

Constructs a ChannelData that matches the current state of a BaseVolumeData.

Parameters

[in]

t_vd

The volume data to take p, n and d from. The caller owns the pointed volume data.

Member Function Documentation

GetCurrentCPU()

Int32 GetCurrentCPU

(

)

Retrieves the current thread index on which the shader is executed.

Since

R16.038

Note

GetCurrentCPU() exists as a member of ChannelData and VolumeData, both yielding the same results.
However if no VolumeData is present (and only then!) a channel shader calculation can also be called with ChannelData::vd set to nullptr.
In that case (or generally) use ChannelData::GetCurrentCPU().

Returns

The running thread index, which is guaranteed to be >= 0 and smaller than the thread count that was passed during InitRender().

Member Data Documentation

p

Vector p

[READ ONLY] The texture position in UVW coordinates.

n

Vector n

[READ ONLY] The surface normal.

d

Vector d

[READ ONLY] The MIP sample radius in UVW coordinates.

t

Float t

[READ ONLY] The current time in seconds.

texflag

Int32 texflag

[READ ONLY] The texture flags: TEX

vd

VolumeData* vd

[READ ONLY] The volume information, can be nullptr.

off

Float off

scale

Float scale

[READ ONLY] The MIP blur offset.