PixelPost Struct Reference

#include <c4d_videopostdata.h>

公共成员函数

  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

构造函数 & 析构函数文档编制

◆  PixelPost()

PixelPost ( )

Default constructor.

由于
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.
false the line contains for each pixel comp Float values (e.g. comp == 3 gives RGB components).
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 被设为 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).