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meerah · 16-09-2005, 10:51 AM

Can anyone tell me how to render in order to produce animation with alpha channel ? Maybe just saving only as a sequence of images ? Thhhaaaannxxxx :headbang:

Cchristensen · 16-09-2005, 03:50 PM

yes, just choose a format with an alpha channel (i.e. png32).

meerah · 16-09-2005, 05:22 PM

The problem is that if I tried to render a image sequence in .png 32 bit format. I got to unexpectable results..e.g. objects had different colors and so on. Which of these formats is according to you the best ?, given I want to have outputs of smaller size , quality can be average. I am rendering volumetric fire seperatedly and find it truly impossible to key out the black in any other application. Can you please give few more clues ? Cheers so far.

Cchristensen · 17-09-2005, 06:04 AM

Set your background color to something close to your background for better results. I have attached an image of some smoke rendered with a solid black background added over black and white.

Cchristensen · 17-09-2005, 06:06 AM

Here is the same smoke but rendered with a white background.

16-09-2005, 10:51 AM	#1
meerah Registered Member Join Date: Dec 2004 Posts: 11	renedering with transparency Can anyone tell me how to render in order to produce animation with alpha channel ? Maybe just saving only as a sequence of images ? Thhhaaaannxxxx :headbang:

17-09-2005, 06:04 AM	#4
Cchristensen Full Access Member Join Date: Jan 2003 Location: Wisconsin Posts: 250	Set your background color to something close to your background for better results. I have attached an image of some smoke rendered with a solid black background added over black and white. Last edited by Cchristensen; 24-04-2011 at 05:01 AM.

17-09-2005, 06:06 AM	#5
Cchristensen Full Access Member Join Date: Jan 2003 Location: Wisconsin Posts: 250	Here is the same smoke but rendered with a white background. Last edited by Cchristensen; 24-04-2011 at 05:01 AM.

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16-09-2005, 03:50 PM	#2
Cchristensen Full Access Member Join Date: Jan 2003 Location: Wisconsin Posts: 250	yes, just choose a format with an alpha channel (i.e. png32).

16-09-2005, 05:22 PM	#3
meerah Registered Member Join Date: Dec 2004 Posts: 11	The problem is that if I tried to render a image sequence in .png 32 bit format. I got to unexpectable results..e.g. objects had different colors and so on. Which of these formats is according to you the best ?, given I want to have outputs of smaller size , quality can be average. I am rendering volumetric fire seperatedly and find it truly impossible to key out the black in any other application. Can you please give few more clues ? Cheers so far.