c4d.bitmaps.BaseBitmap

class c4d.bitmaps.BaseBitmap
The bitmap class can be used to load, read, draw and save bitmap pictures of various formats.
Be sure to call BaseBitmap.Init() before you attempt to use a newly allocated bitmap.

Note

Bitmaps are organized so that x = y = 0 is the top left corner.

Note

Though the bitmap class can work with other bit depths than 24 and 32, please note that only these function support other bit depths: BaseBitmap.GetBw(), BaseBitmap.GetBh(), BaseBitmap.GetBt(), BaseBitmap.GetBpz(), BaseBitmap.Init(), BaseBitmap.GetPixelCnt(), BaseBitmap.SetPixelCnt(), BaseBitmap.SetCMAP(), BaseBitmap.AddChannel(), BaseBitmap.RemoveChannel(), BaseBitmap.GetAlphaPixel(), BaseBitmap.SetAlphaPixel(), BaseBitmap.GetChannelCount(), BaseBitmap.GetChannelNum() (to use higher bit depths or multiple channels, see MultipassBitmap).

See also

Copy32BitImage.py for an example showing how to copy the internal data of an image to a new one.

Methods Signatures

Magic Methods

BaseBitmap.__init__(self,)

rtype

BaseBitmap

BaseBitmap.__getitem__(self, key)

This is similar to GetPixel().

BaseBitmap.__setitem__(self, key, value)

This is similar to GetPixel().

BaseBitmap.__eq__(self, other)

BaseBitmap.__ne__(self, other)

Check if two references point to the same bitmap.

Deprecated

BaseBitmap.Scale(self, dst, intens, ...)

Deprecated since version R18: Use BaseBitmap.ScaleIt() instead.

Uncategorized

BaseBitmap.SetPixel(self, x, y, r, g, b)

Sets the pixel at (x, y) to the color specified by (r,g,b) (0 <= r/g/b <= 255).

BaseBitmap.GetPixel(self, x, y)

Retrieves the color at (x,y). Similar to the __getitem__().

BaseBitmap.GetPixelDirect(self, x, y)

Retrieves the color at (x,y).

BaseBitmap.GetPixelCnt(self, x, y, cnt, ...[, ...])

Reads cnt pixels from (x, y) in the bitmap to the buffer with mode dstmode, incrementing inc bytes for each pixel.

BaseBitmap.SetPixelCnt(self, x, y, cnt, ...)

Sets cnt pixels at (x, y) in the bitmap from buffer with mode srcmode, incrementing inc bytes for each pixel.

BaseBitmap.GetInternalChannel(self,)

Get the internal read-only alpha channel.

BaseBitmap.GetAlphaPixel(self, channel, x, y)

Get the alpha value at (x,y).

BaseBitmap.SetAlphaPixel(self, channel, x, y, val)

Sets the alpha value at (x,y) to val. The valid range of val is 0 to 255.

BaseBitmap.Init(self, x, y[, depth, flags])

Initializes the bitmap to the given dimensions and depth.

BaseBitmap.InitWith(self, name[, frame])

Loads a file into the bitmap. The file can be either a movie or a picture.

BaseBitmap.FlushAll(self,)

Resets the bitmap to its initial state and frees allocated memory.

BaseBitmap.SetColorProfile(self, profile)

Copy the color profile to the bitmap.

BaseBitmap.GetColorProfile(self,)

Get a new color profile instance of the bitmap.

BaseBitmap.CopyTo(self, dst)

Copies the image to dst.

BaseBitmap.CopyPartTo(self, dst, x, y, w, h)

Copies a part of the image to dst.

BaseBitmap.GetClone(self,)

Clones the Bitmap and returns a new instance.

BaseBitmap.GetClonePart(self, x, y, w, h)

Clones a part of the bitmap, specified by the rectangle (x,y) to (x+w,y+h).

BaseBitmap.Save(self, name, format[, ...])

Saves the bitmap to a file. Valid formats are:

BaseBitmap.GetChannelCount(self,)

Returns the number of alpha channels in the bitmap, including the internal channel.

BaseBitmap.Within(self, x, y)

Checks if a position is in the bitmap.

BaseBitmap.GetSize(self,)

Returns the size of the bitmap in pixels.

BaseBitmap.GetBw(self,)

Returns the width of the bitmap in pixels.

BaseBitmap.GetBh(self,)

Returns the height of the bitmap in pixels.

BaseBitmap.GetBt(self,)

Returns the number of bits per pixel.

BaseBitmap.SetCMAP(self, i, r, g, b)

If the image in the bitmap has 8 bit indexed color, this function can be used to set the palette entries.

BaseBitmap.GetBpz(self,)

Returns the number of bytes per line.

BaseBitmap.SetData(self, id, data)

Sets bitmap data. Private.

BaseBitmap.GetData(self, id, default)

Gets bitmap data. Private.

BaseBitmap.ScaleBicubic(self, dst, src_xmin, ...)

Scales the bitmap rectangle (src_xmin, src_ymin, src_xmax, src_ymax) to fit in the destination bitmap rectangle (dst_xmin, dst_ymin, dst_xmax, dst_ymax) and copies it there.

BaseBitmap.ScaleIt(self, dst, intens, ...)

Scales the bitmap to fit in the destination bitmap and copies it there.

BaseBitmap.AddChannel(self, internal, straight)

Adds a new alpha channel to the image.

BaseBitmap.RemoveChannel(self, channel)

Removes the specified channel from the bitmap.

BaseBitmap.GetChannelNum(self, num)

Returns the channel ID from the channel index.

BaseBitmap.GetDirty(self,)

Private.

BaseBitmap.SetDirty(self,)

Makes the bitmap dirty.

BaseBitmap.IsMultipassBitmap(self,)

Checks if the image is a MultipassBitmap.

BaseBitmap.GetColorMode(self,)

Returns the color mode of the bitmap.

BaseBitmap.GetMemoryInfo(self,)

Get the size of the memory used by the bitmap.

BaseBitmap.GetUpdateRegionBitmap(self,)

Get the updated region of a bitmap.

Inheritance

Child Class:

Methods Documentation

BaseBitmap.__init__(self)
Return type

BaseBitmap

Returns

The new bitmap.

BaseBitmap.__getitem__(self, key)

This is similar to GetPixel().

r, g, b = bmp[5, 5] #returns the color of a pixel at position x(5), y(5)
Raises

IndexError – If the pixel position is out of the bitmap boundaries. See GetSize(), GetBw() and GetBh().

Parameters

key (int) – The pixel position.

Return type

tuple(int, int, int)

Returns

The color of a pixel. Range between 0-255.

BaseBitmap.__setitem__(self, key, value)

This is similar to GetPixel().

bmp[5, 5] = (50, 255, 50) #returns the color of a pixel at position x(5), y(5)

Note

The Vector objects does not support item deletion.
For instance by calling del(bmp[5,5]).
Raises

IndexError – If the pixel position is out of the bitmap boundaries. See GetSize(), GetBw() and GetBh().

Parameters
  • key (int) – The pixel position.

  • value (tuple(int, int, int)) – The color of the pixel. Range between 0-255.

BaseBitmap.__eq__(self, other)
BaseBitmap.__ne__(self, other)

Check if two references point to the same bitmap.

Note

Does not compare if two references are equal.

BaseBitmap.Scale(self, dst, intens, sample, nprop)

Deprecated since version R18: Use BaseBitmap.ScaleIt() instead.

Scales the bitmap to fit in the destination bitmap and copies it there.

Note

The destination needs to be initialized with the destination size before calling this function.

../../../_images/basebitmap_scaleit.jpg
Parameters
  • dst (c4d.bitmaps.BaseBitmap) – The destination image. Must be initiated already with the destination size.

  • intens (int) – Lets you change brightness of the image (128 = 50% brightness, 256 = unchanged).

  • sample (bool) – If True a better scaling algorithm is used, which results in a better quality but is a bit slower.

  • nprop (bool) – Must be True if non-proportional scaling is wanted.

BaseBitmap.SetPixel(self, x, y, r, g, b)
Sets the pixel at (x, y) to the color specified by (r,g,b) (0 <= r/g/b <= 255).
Similar to the __setitem__().

Note

Currently this method does no range check of x and y.
This might be added in the future.
Please do the check on your own.
Parameters
  • x (int) – The X coordinate.

  • y (int) – The Y coordinate.

  • r (int) – The red component.

  • g (int) – The green component.

  • b (int) – The blue component.

Return type

bool

Returns

True if successful, otherwise False.

BaseBitmap.GetPixel(self, x, y)

Retrieves the color at (x,y). Similar to the __getitem__().

Note

Currently this method does no range check of x and y.
This might be added in the future.
Please do the check on your own.
Parameters
  • x (int) – The X coordinate.

  • y (int) – The Y coordinate.

Return type

List[int]

Returns

The color of the pixel. Range between 0-255.

BaseBitmap.GetPixelDirect(self, x, y)

Retrieves the color at (x,y).

New in version S22.

Note

The range of the assigned parameters are 0.0 to 255.0, regardless of the bit depth of the image where (255.0, 255.0, 255.0) is white.
The range returns float value, so 8, 16 and 32 bit precision is supported.
Parameters
  • x (int) – The X coordinate.

  • y (int) – The Y coordinate.

Returns

Color as form of a 3D Vector.

Return type

c4d.Vector

BaseBitmap.GetPixelCnt(self, x, y, cnt, buffer, inc, dstmode, flags, conversion=None)

Reads cnt pixels from (x, y) in the bitmap to the buffer with mode dstmode, incrementing inc bytes for each pixel.

Parameters
  • x (int) – X coordinate of the first pixel to set.

  • y (int) – Y coordinate of the first pixel to set.

  • cnt (int) – Number of pixels to set.

  • buffer (Union[bytearray, memoryview]) – The destination buffer.

  • inc (int) – The byte increment per pixel in the buffer.

  • dstmode (int) –

    The destination mode:

    COLORMODE_ILLEGAL

    Illegal 8-bit mode.

    COLORMODE_ALPHA

    Only 8-bit alpha channel.

    COLORMODE_GRAY

    8-bit grayscale channel.

    COLORMODE_AGRAY

    8-bit grayscale channel with 8-bit alpha.

    COLORMODE_RGB

    8-bit RGB channels.

    COLORMODE_ARGB

    8-bit RGB channels with 8-bit alpha.

    COLORMODE_CMYK

    8-bit CMYK channel.

    COLORMODE_ACMYK

    8-bit CMYK channel with 8-bit alpha.

    COLORMODE_MASK

    8-bit grayscale map as mask.

    COLORMODE_AMASK

    8-bit grayscale map as mask with 8-bit alpha.

    COLORMODE_ILLEGALw

    Illegal 16-bit mode.

    COLORMODE_GRAYw

    16-bit grayscale channel.

    COLORMODE_AGRAYw

    16-bit grayscale channel with 16-bit alpha.

    COLORMODE_RGBw

    16-bit RGB channels.

    COLORMODE_ARGBw

    16-bit RGB channels with 16-bit alpha.

    COLORMODE_MASKw

    16-bit grayscale map as mask with 16-bit alpha.

    COLORMODE_ILLEGALf

    Illegal 32-bit mode.

    COLORMODE_GRAYf

    32-bit floating point grayscale channel.

    COLORMODE_AGRAYf

    32-bit floating point grayscale channel with floating point alpha.

    COLORMODE_RGBf

    32-bit floating point RGB channels.

    COLORMODE_ARGBf

    32-bit floating point RGB channels with floating point alpha.

    COLORMODE_MASKf

    32-bit floating point grayscale map as mask.

  • flags (int) –

    Flags:

    PIXELCNT_NONE

    None.

    PIXELCNT_DITHERING

    Allow dithering.

    PIXELCNT_B3DLAYERS

    Merge BodyPaint 3D layers (MultipassBitmap).

    PIXELCNT_APPLYALPHA

    Apply alpha layers to the result (PaintLayerBmp).

    PIXELCNT_INTERNAL_SETLINE

    Internal SetLine indicator. Private.

    PIXELCNT_INTERNAL_ALPHAVALUE

    Get also the alpha value (RGBA 32-bit). Private.

  • conversion (c4d.bitmaps.ColorProfileConvert) –

    New in version R17.032.

    This should be normally set to None. Pass a color profile only if a conversion is wanted before retrieving the pixel data.
    This only works if either the bitmap is 32-bit per component (so no 8/16-bit images) or the dstmode is 32-bit per component.
    The conversion is done before color reduction (e.g. if dstmode is 16-bit the profile is first applied and then the data resampled to 16-bit).

Return type

bool

Returns

True if successful, otherwise False.

BaseBitmap.SetPixelCnt(self, x, y, cnt, buffer, inc, srcmode, flags)

Sets cnt pixels at (x, y) in the bitmap from buffer with mode srcmode, incrementing inc bytes for each pixel.

"""
Copyright: MAXON Computer GmbH

Description:
    - Copies the internal data of a 32 bit per-channel image to a new one.

Note:
    - BaseBitmap.GetClone could be used for doing the exact same purpose, bu

Class/method highlighted:
    - BaseBitmap.SetPixelCnt()
    - BaseBitmap.GetPixelCnt()

"""
import c4d


def main():
    # Opens a Dialog to choose a picture file
    path = c4d.storage.LoadDialog(type=c4d.FILESELECTTYPE_IMAGES, title="Please Choose a 32-bit Image:")

    # If the user cancels, leaves
    if not path:
        return

    # Creates a BaseBitmap that will be used for loading the selected picture
    orig = c4d.bitmaps.BaseBitmap()
    if orig is None:
        raise RuntimeError("Failed to create the bitmap.")

    # Initializes the BaseBitmap with the selected picture
    if orig.InitWith(path)[0] != c4d.IMAGERESULT_OK:
        raise RuntimeError("Cannot load image \"" + path + "\".")

    # Checks if channel depth is really 32 bit
    if orig.GetBt()/3 != 32:
        raise RuntimeError("The image \"" + path + "\" is not a 32 bit per-channel image.")

    # Gets selected image information
    width, height = orig.GetSize()
    bits = orig.GetBt()

    # Creates a BaseBitmap that will be ued for making a copy copy and initialize it
    copy = c4d.bitmaps.BaseBitmap()
    if copy is None:
        raise RuntimeError("Failed to create the bitmap.")

    copy.Init(width, height, bits)
    if orig.InitWith(path)[0] != c4d.IMAGERESULT_OK:
        raise RuntimeError("Cannot load image \"" + path + "\".")

    # Calculates the number of bytes per pixel
    # Each pixel has RGB bits, so we need an offset of 'inc' bytes per pixel
    # the image has 32 bits per-channel : (32*3)/8 = 12 bytes per pixel (1 byte = 8 bits)
    # the image has 3 channels per pixel (RGB) : 12/3 = 4 bytes per component = 1 float
    inc = orig.GetBt() // 8
    bytesArray = bytearray(width * height * inc)
    memoryView = memoryview(bytesArray)
    for row in range(height):
        memoryViewSlice = memoryView[row*(width*inc):]
        orig.GetPixelCnt(0, row, width, memoryViewSlice, inc, c4d.COLORMODE_RGBf, c4d.PIXELCNT_0)

    for row in range(height):
        memoryViewSlice = memoryView[row * (width * inc):]
        copy.SetPixelCnt(0, row, width, memoryViewSlice, inc, c4d.COLORMODE_RGBf, c4d.PIXELCNT_0)

    # Show original and copied image in the picture viewer
    c4d.bitmaps.ShowBitmap(orig)
    c4d.bitmaps.ShowBitmap(copy)


if __name__ == '__main__':
    main()
Parameters
  • x (int) – X coordinate of the first pixel to set.

  • y (int) – Y coordinate of the first pixel to set.

  • cnt (int) – Number of pixels to set.

  • buffer (Union[bytearray, memoryview]) – The source buffer.

  • inc (int) – The byte increment per pixel in the buffer.

  • srcmode (int) –

    The source mode.

    Note

    None of the alpha modes are supported.

    COLORMODE_ILLEGAL

    Illegal 8-bit mode.

    COLORMODE_ALPHA

    Only 8-bit alpha channel.

    COLORMODE_GRAY

    8-bit grayscale channel.

    COLORMODE_AGRAY

    8-bit grayscale channel with 8-bit alpha.

    COLORMODE_RGB

    8-bit RGB channels.

    COLORMODE_ARGB

    8-bit RGB channels with 8-bit alpha.

    COLORMODE_CMYK

    8-bit CMYK channel.

    COLORMODE_ACMYK

    8-bit CMYK channel with 8-bit alpha.

    COLORMODE_MASK

    8-bit grayscale map as mask.

    COLORMODE_AMASK

    8-bit grayscale map as mask with 8-bit alpha.

    COLORMODE_ILLEGALw

    Illegal 16-bit mode.

    COLORMODE_GRAYw

    16-bit grayscale channel.

    COLORMODE_AGRAYw

    16-bit grayscale channel with 16-bit alpha.

    COLORMODE_RGBw

    16-bit RGB channels.

    COLORMODE_ARGBw

    16-bit RGB channels with 16-bit alpha.

    COLORMODE_MASKw

    16-bit grayscale map as mask with 16-bit alpha.

    COLORMODE_ILLEGALf

    Illegal 32-bit mode.

    COLORMODE_GRAYf

    32-bit floating point grayscale channel.

    COLORMODE_AGRAYf

    32-bit floating point grayscale channel with floating point alpha.

    COLORMODE_RGBf

    32-bit floating point RGB channels.

    COLORMODE_ARGBf

    32-bit floating point RGB channels with floating point alpha.

    COLORMODE_MASKf

    32-bit floating point grayscale map as mask.

  • flags (int) –

    Flags:

    PIXELCNT_NONE

    None.

    PIXELCNT_DITHERING

    Allow dithering.

    PIXELCNT_B3DLAYERS

    Merge BodyPaint 3D layers (MultipassBitmap).

    PIXELCNT_APPLYALPHA

    Apply alpha layers to the result (PaintLayerBmp).

    PIXELCNT_INTERNAL_SETLINE

    Internal SetLine indicator. Private.

    PIXELCNT_INTERNAL_ALPHAVALUE

    Get also the alpha value (RGBA 32-bit). Private.

Return type

bool

Returns

True if successful, otherwise False.

BaseBitmap.GetInternalChannel(self)
Get the internal read-only alpha channel.
The internal alpha channel is the one that’s saved together with the picture, with those formats that support this.

Note

If no internal alpha is available, None is returned.

Return type

c4d.bitmaps.BaseBitmap

Returns

The internal alpha channel.

BaseBitmap.GetAlphaPixel(self, channel, x, y)

Get the alpha value at (x,y).

Note

Currently this method does no range check of x and y.
This might be added in the future.
Please do the check on your own.
Parameters
  • bmp (c4d.bitmaps.BaseBitmap) – The alpha channels to use. Has to be an alpha bitmap.

  • x (int) – X coordinate.

  • y (int) – Y coordinate.

Return type

int

Returns

The alpha value. Range is 0 to 255.

BaseBitmap.SetAlphaPixel(self, channel, x, y, val)

Sets the alpha value at (x,y) to val. The valid range of val is 0 to 255.

Note

Currently this method does no range check of x and y.
This might be added in the future.
Please do the check on your own.
Parameters
  • bmp (c4d.bitmaps.BaseBitmap) – The alpha channels to use. Has to be an alpha bitmap.

  • x (int) – X coordinate.

  • y (int) – Y coordinate.

  • val (int) – The alpha value. Range is 0 to 255.

BaseBitmap.Init(self, x, y, depth=24, flags=INITBITMAPFLAGS_NONE)

Initializes the bitmap to the given dimensions and depth.

Warning

Any previous data in the bitmap object is lost.

Note

The bitmap class only supports up to 4 channels.
Also, most image loaders will only load one alpha channel.
Parameters
  • x (int) – The requested width in pixels. (Max 16000 pixels.).

  • y (int) – The requested width in pixels. (Max 16000 pixels.).

  • depth (int) –

    The requested bit depth (24 default).
    The possible values are {1,4,8,16,24,32}.
    On some platforms 32 bits will be used even if 24 is requested, to allow for padding.

  • flags (int) –

    Flags:

    INITBITMAPFLAGS_NONE

    None.

    INITBITMAPFLAGS_GRAYSCALE

    Initializes as grayscale bitmap.

    INITBITMAPFLAGS_SYSTEM

    Private.

Return type

int

Returns

The result:

IMAGERESULT_OK

Image loaded/created.

IMAGERESULT_NOTEXISTING

Image does not exist.

IMAGERESULT_WRONGTYPE

Image has the wrong type.

IMAGERESULT_OUTOFMEMORY

Not enough memory.

IMAGERESULT_FILEERROR

File error.

IMAGERESULT_FILESTRUCTURE

Invalid file structure.

IMAGERESULT_MISC_ERROR

Unknown error.

IMAGERESULT_PARAM_ERROR

Parameter error.

IMAGERESULT_THREADCANCELED

Thread canceled while working.

BaseBitmap.InitWith(self, name, frame=- 1)
Loads a file into the bitmap. The file can be either a movie or a picture.
The file format is automatically detected
result, isMovie = bmp.InitWith(path)
if result == c4d.IMAGERESULT_OK: #int check
    # picture loaded

    if isMovie: #bool check
        pass # file is a movie
    else:
        pass # file is no movie

Note

The bitmap class only supports up to 4 channels.
Also, most image loaders will only load one alpha channel.
Parameters
Return type

tuple(int, bool)

Returns

The result for first element:

IMAGERESULT_OK

Image loaded/created.

IMAGERESULT_NOTEXISTING

Image does not exist.

IMAGERESULT_WRONGTYPE

Image has the wrong type.

IMAGERESULT_OUTOFMEMORY

Not enough memory.

IMAGERESULT_FILEERROR

File error.

IMAGERESULT_FILESTRUCTURE

Invalid file structure.

IMAGERESULT_MISC_ERROR

Unknown error.

IMAGERESULT_PARAM_ERROR

Parameter error.

IMAGERESULT_THREADCANCELED

Thread canceled while working.

The second element is True if the loaded picture was a movie.

BaseBitmap.FlushAll(self)

Resets the bitmap to its initial state and frees allocated memory.

Warning

Requires a call to Init() before the bitmap can be used again.

BaseBitmap.SetColorProfile(self, profile)

Copy the color profile to the bitmap.

Parameters

profile (c4d.bitmaps.ColorProfile) – The profile.

Return type

bool

Returns

True on success, otherwise False.

BaseBitmap.GetColorProfile(self)

Get a new color profile instance of the bitmap.

Return type

c4d.bitmaps.ColorProfile

Returns

The profile.

BaseBitmap.CopyTo(self, dst)

Copies the image to dst.

Parameters

dst (c4d.bitmaps.BaseBitmap) – The bitmap to copy the image to.

Return type

bool

Returns

Success of copying the image.

BaseBitmap.CopyPartTo(self, dst, x, y, w, h)

Copies a part of the image to dst.

Parameters
  • dst (c4d.bitmaps.BaseBitmap) – The bitmap to copy the image to.

  • x (int) – The X position of the part to be copied from the source image.

  • y (int) – The Y position of the part to be copied from the source image.

  • w (int.) – The width of the part to be copied.

  • h (int) – The height of the part to be copied.

Return type

bool

Returns

Success of copying the image.

BaseBitmap.GetClone(self)

Clones the Bitmap and returns a new instance.

Return type

c4d.bitmaps.BaseBitmap

Returns

The clone.

BaseBitmap.GetClonePart(self, x, y, w, h)

Clones a part of the bitmap, specified by the rectangle (x,y) to (x+w,y+h).

Parameters
  • x (int) – The upper X coordinate of the rectangle.

  • y (int) – The upper Y coordinate of the rectangle.

  • w (int.) – The width of the rectangle.

  • h (int) – The height of the rectangle.

Return type

c4d.bitmaps.BaseBitmap

Returns

The cloned bitmap, or None if an error occured.

BaseBitmap.Save(self, name, format, data=None, savebits=SAVEBIT_NONE)

Saves the bitmap to a file. Valid formats are:

FILTER_TIF

TIFF.

FILTER_TGA

TGA.

FILTER_BMP

BMP.

FILTER_IFF

IFF.

FILTER_JPG

JPEG.

FILTER_PICT

PICT.

FILTER_PSD

PSD.

FILTER_RLA

RLA.

FILTER_RPF

RPF.

FILTER_B3D

BodyPaint 3D.

FILTER_TIF_B3D

TIFF BodyPaint 3D.

FILTER_PSB

PSB.

FILTER_AVI

AVI Movie.

FILTER_MOVIE

Quicktime Movie.

FILTER_QTVRSAVER_PANORAMA

QTVR Panorama.

FILTER_QTVRSAVER_OBJECT

QTVR Object.

FILTER_HDR

HDR.

FILTER_EXR_LOAD

EXR (Load).

FILTER_EXR

EXR.

FILTER_PNG

PNG.

FILTER_IES

IES.

FILTER_B3DNET

BodyPaint 3D NET. Private.

FILTER_DPX

DPX.

FILTER_DDS

New in version R19: DDS.

Parameters
  • name (Union[str, c4d.storage.MemoryFileStruct]) – A file.

  • format (int) – The image format.

  • data (c4d.BaseContainer) – The data.

  • savebits (int) –

    Can be a combination of the following flags:

    SAVEBIT_NONE

    None.

    SAVEBIT_ALPHA

    Save the alpha channel(s) in the file. (For filter plugins, do not save an alpha channel if this is not set.)

    SAVEBIT_MULTILAYER

    Save multiple layers.

    SAVEBIT_USESELECTEDLAYERS

    Use selected layers.

    SAVEBIT_16BITCHANNELS

    Use 16-bit channels.

    SAVEBIT_GREYSCALE

    Save in grayscale mode.

    SAVEBIT_INTERNALNET

    Private.

    SAVEBIT_DONTMERGE

    Avoid merging of layers in BodyPaint 3D files.

    SAVEBIT_32BITCHANNELS

    Use 32-bit channels.

    SAVEBIT_SAVERENDERRESULT

    Private.

    SAVEBIT_FIRSTALPHA_ONLY

    Private.

Return type

int

Returns

True if BaseBitmap is not empty, otherwise False.

IMAGERESULT_OK

Image loaded/created.

IMAGERESULT_NOTEXISTING

Image does not exist.

IMAGERESULT_WRONGTYPE

Image has the wrong type.

IMAGERESULT_OUTOFMEMORY

Not enough memory.

IMAGERESULT_FILEERROR

File error.

IMAGERESULT_FILESTRUCTURE

Invalid file structure.

IMAGERESULT_MISC_ERROR

Unknown error.

IMAGERESULT_PARAM_ERROR

Parameter error.

IMAGERESULT_THREADCANCELED

Thread canceled while working.

BaseBitmap.GetChannelCount(self)

Returns the number of alpha channels in the bitmap, including the internal channel.

Return type

int

Returns

Number of alpha channels.

BaseBitmap.Within(self, x, y)

Checks if a position is in the bitmap.

Parameters
  • x (int) – The X Coordinate

  • y (int) – The Y Coordinate

Return type

bool

Returns

True if the coordinate is in the bitmap.

BaseBitmap.GetSize(self)

Returns the size of the bitmap in pixels.

Note

If the bitmap hasn’t been initialized the return values are 0. (This is the only way to see if a bitmap has been initialized.)

#bmp is a BaseBitmap instance
x, y = bmp.GetSize()
Return type

List[int]

Returns

Bitmap width and height in pixels, or 0 if the bitmap is not initialized.

BaseBitmap.GetBw(self)

Returns the width of the bitmap in pixels.

Note

If the bitmap hasn’t been initialized the return value is 0. (This is the only way to see if a bitmap has been initialized.)

Return type

int

Returns

Bitmap width in pixels, or 0 if the bitmap is not initialized.

BaseBitmap.GetBh(self)

Returns the height of the bitmap in pixels.

Return type

int

Returns

Bitmap height in pixels.

BaseBitmap.GetBt(self)

Returns the number of bits per pixel.

Return type

int

Returns

The number of bits.

BaseBitmap.SetCMAP(self, i, r, g, b)
If the image in the bitmap has 8 bit indexed color, this function can be used to set the palette entries.
All four parameters must be between 0 and 255.
Parameters
  • i (int) – The index.

  • r (int) – The red component.

  • g (int) – The green component.

  • b (int) – The blue component.

BaseBitmap.GetBpz(self)

Returns the number of bytes per line.

Return type

int

Returns

Number of bytes per line.

BaseBitmap.SetData(self, id, data)

Sets bitmap data. Private.

Parameters
  • id (int) – The data ID to set.

  • data (any) – The data to set.

Return type

bool

Returns

True if the data could be set, otherwise False.

BaseBitmap.GetData(self, id, default)

Gets bitmap data. Private.

Parameters
  • id (int) – The data ID to get.

  • default (any) – Returned if data is not set.

Return type

Any

Returns

The retrieved data, or default.

BaseBitmap.ScaleBicubic(self, dst, src_xmin, src_ymin, src_xmax, src_ymax, dst_xmin, dst_ymin, dst_xmax, dst_ymax)
Scales the bitmap rectangle (src_xmin, src_ymin, src_xmax, src_ymax) to fit in the destination bitmap rectangle (dst_xmin, dst_ymin, dst_xmax, dst_ymax) and copies it there.
The scaling, if necessary, is done using bicubic interpolation.
The destination needs to be initialized before calling this function.
bmp.ScaleBicubic(dst, 0, 0, bmp.GetBw()-1, bmp.GetBh()-1, 0, 0, dst.GetBw()-1, dst.GetBh()-1)

Note

This function can currently only scale down, i.e. the destination needs to be smaller to the source in size.

../../../_images/basebitmap_scalebicubic.jpg
Parameters
  • dst (c4d.bitmaps.BaseBitmap) – The destination bitmap.

  • src_xmin (int) – Source top left X coordinate.

  • src_ymin (int) – Source top left Y coordinate.

  • src_xmax (int) – Source bottom right X coordinate.

  • src_ymax (int) – Source bottom right Y coordinate.

  • dst_xmin (int) – Destination top left X coordinate.

  • dst_ymin (int) – Destination top left Y coordinate.

  • dst_xmax (int) – Destination bottom right X coordinate.

  • dst_ymax (int) – Destination bottom right Y coordinate.

BaseBitmap.ScaleIt(self, dst, intens, sample, nprop)

Scales the bitmap to fit in the destination bitmap and copies it there.

Note

The destination needs to be initialized with the destination size before calling this function.

../../../_images/basebitmap_scaleit.jpg
Parameters
  • dst (c4d.bitmaps.BaseBitmap) – The destination image. Must be initiated already with the destination size.

  • intens (int) – Lets you change brightness of the image (128 = 50% brightness, 256 = unchanged).

  • sample (bool) – If True a better scaling algorithm is used, which results in a better quality but is a bit slower.

  • nprop (bool) – Must be True if non-proportional scaling is wanted.

BaseBitmap.AddChannel(self, internal, straight)

Adds a new alpha channel to the image.

Parameters
  • internal (bool) –

    Should only be True for the first alpha.
    The internal alpha will be stored within an image if the image format supports alphas.

  • straight (bool) –

    Should be True if the image has to be interpreted as straight.
    For information about straight alphas please take a look at the corresponding option in the render settings of Cinema 4D and the Cinema 4D manual.

Return type

int

Returns

The new channel.

BaseBitmap.RemoveChannel(self, channel)

Removes the specified channel from the bitmap.

Parameters

channel (c4d.bitmaps.BaseBitmap) – The alpha channels to use.

BaseBitmap.GetChannelNum(self, num)

Returns the channel ID from the channel index.

Parameters

num (int) – A number between 0 and GetChannelCount().

Return type

c4d.bitmaps.BaseBitmap

Returns

The requested channel.

BaseBitmap.GetDirty(self)

Private.

Return type

int

Returns

Dirty count, incremented when the bitmap changes.

BaseBitmap.SetDirty(self)

Makes the bitmap dirty.

BaseBitmap.IsMultipassBitmap(self)

Checks if the image is a MultipassBitmap.

Return type

bool

Returns

True if the image is a MultipassBitmap, otherwise False

BaseBitmap.GetColorMode(self)

Returns the color mode of the bitmap.

Return type

int

Returns

Color mode

COLORMODE_ILLEGAL

Illegal 8-bit mode.

COLORMODE_ALPHA

Only 8-bit alpha channel.

COLORMODE_GRAY

8-bit grayscale channel.

COLORMODE_AGRAY

8-bit grayscale channel with 8-bit alpha.

COLORMODE_RGB

8-bit RGB channels.

COLORMODE_ARGB

8-bit RGB channels with 8-bit alpha.

COLORMODE_CMYK

8-bit CMYK channel.

COLORMODE_ACMYK

8-bit CMYK channel with 8-bit alpha.

COLORMODE_MASK

8-bit grayscale map as mask.

COLORMODE_AMASK

8-bit grayscale map as mask with 8-bit alpha.

COLORMODE_ILLEGALw

Illegal 16-bit mode.

COLORMODE_GRAYw

16-bit grayscale channel.

COLORMODE_AGRAYw

16-bit grayscale channel with 16-bit alpha.

COLORMODE_RGBw

16-bit RGB channels.

COLORMODE_ARGBw

16-bit RGB channels with 16-bit alpha.

COLORMODE_MASKw

16-bit grayscale map as mask with 16-bit alpha.

COLORMODE_ILLEGALf

Illegal 32-bit mode.

COLORMODE_GRAYf

32-bit floating point grayscale channel.

COLORMODE_AGRAYf

32-bit floating point grayscale channel with floating point alpha.

COLORMODE_RGBf

32-bit floating point RGB channels.

COLORMODE_ARGBf

32-bit floating point RGB channels with floating point alpha.

COLORMODE_MASKf

32-bit floating point grayscale map as mask.

BaseBitmap.GetMemoryInfo(self)

Get the size of the memory used by the bitmap.

Return type

long

Returns

Memory size of the bitmap.

BaseBitmap.GetUpdateRegionBitmap(self)

Get the updated region of a bitmap.

Return type

c4d.bitmaps.BaseBitmap

Returns

The updated region.