PixelPost Struct Reference

#include <c4d_videopostdata.h>

Public Member Functions
	PixelPost ()

Public Attributes
PixelFragment **	frag
PixelFragment **	frag_nx
VolumeData *	vd
Float32 *	col
Multipass *	mp
Bool	aa
Bool	valid_line
Int32	comp
Int32	cpu_num
Int32	xmin
Int32	xmax
Int32	line

Constructor & Destructor Documentation

PixelPost()

PixelPost

(

)

Default constructor.

Since

R17.032

Member Data Documentation

frag

PixelFragment** frag

The current pixel fragment.

frag_nx

PixelFragment** frag_nx

The pixel fragments for the next line. Private.

vd

VolumeData* vd

The current VolumeData.

col

Float32* col

The buffer to the full line for VideoPostData::ExecuteLine or the sub-pixels for VideoPostData::ExecutePixel.

mp

Multipass* mp

The current Multipass.

aa

Bool aa

true means that antialiasing is used during rendering.
In the case of antialiasing this has an important impact on VideoPostData::ExecuteLine, using antialiasing means that each pixel is split into 4 independent sub-pixels.
In the case of VideoPostData::ExecuteLine col is the buffer to the line.
If false the line contains for each pixel comp Float values (e.g. comp==3 gives RGB components).
If true the line contains for each pixel 4 comp Float values (4 sub-pixels: first one is upper left, then upper right, then lower left, then lower right).

valid_line

Bool valid_line

true means that the line has not yet been processed.
During antialiasing and multiprocessor rendering it is possible that a few lines are rendered twice.
Imagine that you have created abuffer. In VideoPostData::ExecuteLine you save the local data to the buffer which is then processed at the end of the frame.
To avoid that the same line is calculated twice valid_line is set to false after it already has been processed.

comp

Int32 comp

The number of components per pixel. At least 3 (RGB), but larger values are possible. (Depending on existing special buffers, alphas etc.)
The structure of those components is stored in the Multipass structure.

cpu_num

Int32 cpu_num

The current CPU.

xmin

Int32 xmin

The left value of the rendered line (main pixel units, no sub-pixels).

xmax

Int32 xmax

The right value of the rendered line (main pixel units, no sub-pixels).

line

Int32 line

The current vertical line (main pixel units).