Hi Selman and all,
Thanks for your responses. I am using a color model
bcos, I have R, G, B samples/values individually, and
not a single pixel value. To get a single pixel value
from three individual values I am using ColorModel.
I have corrected my code, and used DirectColorModel,
and SinglePixelPackedSampleModel. Now I am passing
these RGB values to a method in DirectColorModel to
get the pixel value represented as a single int and
storing that value in the data buffer, which is to be
passed to the bufferedImage creation. This works but I
am weird images on my frame, but not the original one.
I am attaching the sample code below...
cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
// Color Model
DirectColorModel dcm = new DirectColorModel(cs, 24,
0xff0000, 0x00ff00, 0x0000ff, 0x0, false,
DataBuffer.TYPE_BYTE);
int[] bandMasks = new int[3];
bandMasks[0] = 0x00ff0000;
bandMasks[1] = 0x0000ff00;
bandMasks[2] = 0x000000ff;
SinglePixelPackedSampleModel spsm = new
SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE,
texturewidth, textureheight, texturewidth, bandMasks);
SampleModel smm =
spsm.createCompatibleSampleModel(texturewidth,
textureheight);
DataBuffer newDB = spsm.createDataBuffer();
// Filling the DataBuffer with pixels
for(int ii=0; ii<texturewidth * textureheight; ii++)
{
components[0] = inputData[ctr1++]; //Red
components[1] = inputData[ctr1++]; //Green
components[2] = inputData[ctr1++]; //Blue
int dataElement1 = dcm.getDataElement(components,
0); // Return a single int pixel value for R,G,B
values
newDB.setElem(ctr, dataElement1); // Filling the
Data Buffer
ctr++;
}
raster = WritableRaster.createWritableRaster(smm,
newDB, null);
img = new BufferedImage(dcm, raster, false, null);
For the above code, I am getting a texture mapped
image totally different from the original one.
Suggestions please.....
Thanks,
Sagar.
--- Daniel Selman <[EMAIL PROTECTED]> wrote:
> Vidya,
>
> I just use something like:
>
> BufferedImage perlinTextureImage = new
> BufferedImage( MAX_TEXTURE_SIZE,
> MAX_TEXTURE_SIZE, BufferedImage.TYPE_3BYTE_BGR );
>
> I can then use getRGB(), setRGB() to read/write the
> color data. What are the
> advantages of setting up the ColorModel explicitly?
>
> Sincerely,
>
> Daniel Selman
>
> Author - "Java 3D Programming"
> http://www.manning.com/selman
>
> -----Original Message-----
> From: Discussion list for Java 3D API
> [mailto:[EMAIL PROTECTED]]On Behalf Of
> Vidya Sagar
> Sent: Thursday, April 04, 2002 1:36 AM
> To: [EMAIL PROTECTED]
> Subject: Buffered Image creation
>
>
> Hi all,
> I am creating a buffered image in the code given
> below. I am getting the exception shown. Could
> anyone
> suggest some possible correction or any other
> solution
> to it? I need to use the DirectColorModel since I
> want
> to access individual RGB components of each pixel.
>
>
> cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
> DirectColorModel dcm = new DirectColorModel(cs, 24,
> 0xff0000, 0x00ff00, 0x0000ff, 0x0, false,
> DataBuffer.TYPE_BYTE);
>
> byte[] readData = new byte[128 * 128 * 3];
> /* reading the data into the byte array readData
> takes
> here */
>
> //After reading..the data
> DataBuffer db = new DataBufferByte(readData,
> texturewidth * textureheight * 3);
>
> int[] band = new int[3];
>
> raster = WritableRaster.createInterleavedRaster(db,
> texturewidth, textureheight, texturewidth * 3, 3,
> band, null);
>
> Exception in thread "main"
> java.lang.IllegalArgumentException: Raster
> ByteInterleavedRaster: width = 128 height = 128
> #numDataElements 3 dataOff[0] = 0 is incompatible
> with
> ColorModel DirectColorModel: rmask=ff0000 gmask=ff00
> bmask=ff amask=0
> at
>
java.awt.image.BufferedImage.<init>(BufferedImage.java:517)
>
>
> Thanks,
> Sagar.
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Tax Center - online filing with TurboTax
> http://taxes.yahoo.com/
>
>
===========================================================================
> To unsubscribe, send email to [EMAIL PROTECTED]
> and include in the body
> of the message "signoff JAVA3D-INTEREST". For
> general help, send email to
> [EMAIL PROTECTED] and include in the body of the
> message "help".
>
>
===========================================================================
> To unsubscribe, send email to [EMAIL PROTECTED]
> and include in the body
> of the message "signoff JAVA3D-INTEREST". For
> general help, send email to
> [EMAIL PROTECTED] and include in the body of the
> message "help".
__________________________________________________
Do You Yahoo!?
Yahoo! Tax Center - online filing with TurboTax
http://taxes.yahoo.com/
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff JAVA3D-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
