mskp
Posts: 273
Location:
Registered: 19 Oct 2006
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Why to resize?
Posted: 24 Feb 2010 at 21:04 GMT
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Hi!
I know it is a strange question, as the size matters.
I always thought and read that resizing the images before loading them into Pano2VR and create the final .swf file, will reduce its size.
I´ve made a test loading first a 11724 x 5862 / 196 MB .tif image and later a 6000 x 3000 / 3.66 MB .jpeg, keeping the flash output settings the same.
The file created with the .jpeg image was bigger then the one created with the .tif image. ( 392 kb against 376 kb. )
So, why to resize the image?
Regards, Martin
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fiero
Posts: 332
Location: DevalVR developer, Spain
Registered: 6 Jul 2005
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Re: Why to resize?
Posted: 24 Feb 2010 at 22:13 GMT
updated: 24 Feb 2010 at 22:14 GMT
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Jpeg codec is very good to compress gradient colours, and not very good with abrupt contour and contrasted colors. If the final size is smaller when you resize the image before loading it into Pano2VR, this is because you lost details in your resizing.
For me, fewer modifications is better to keep the original quality, so, why to resize the image?
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mskp
Posts: 273
Location:
Registered: 19 Oct 2006
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Re: Why to resize?
Posted: 24 Feb 2010 at 22:23 GMT
updated: 24 Feb 2010 at 22:24 GMT
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Thanks Fiero!
In many posts the suggestion is to load an image between 8000x4000 or 6000x3000 ( for final fullscreen use) into Pano2VR to create the final .swf file and have that measures in mind to calculate the tile size. From your post I conclude that you also think that it is useless to resize, so far no other explanation shows up.
Regards, Martin
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fiero
Posts: 332
Location: DevalVR developer, Spain
Registered: 6 Jul 2005
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Re: Why to resize?
Posted: 24 Feb 2010 at 22:32 GMT
updated: 24 Feb 2010 at 22:34 GMT
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Yes, for me it's better to load the 11724x5862 image, and you can have the 8000x4000 in mind to create the cubefaces (maybe 8000/PI this is 2546x2546). So, Pano2VR must convert the 11724x5864 equirect into 2546x2546, if you use the best interpolator the quality will be better, because only one conversion/resizing.
regards!
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