Author Topic: blender - isolated object (Read 7513 times)

mtkang · « **on:** March 06, 2013, 09:18 »

hi guys,

anyone is using blender?

I am trying to create some fluid.. and i am thinking if there is a way to isolate the fluid? so it will be useful for buyer?

I remember sth like alpha mask? is it same as masking in photoshop?

any guy can give some direction?

thanks.

tab62 · « **Reply #1 on:** March 06, 2013, 09:53 »

than why not just do layer and masking in Photoshop to get your effect...

mtkang · « **Reply #2 on:** March 06, 2013, 10:48 »

i am thinking if it is possible to generate during 3d render.. like to separate the object from background.

since it is a liquid..i may take sometimes to use pen tool to isolate in photoshop..

lbarn · « **Reply #3 on:** March 06, 2013, 16:14 »

Have you tried to change the output under the camera tab to png and choose RGBA button; render, then on the rendered window on the lower right side choose colors and alpha (triangle button), then save as image png

mtkang · « **Reply #4 on:** March 09, 2013, 21:33 »

do i need to put the background and object on different layers?

how would the system able to render a transparent background?

thanks.

Quote from: lbarn on March 06, 2013, 16:14

Have you tried to change the output under the camera tab to png and choose RGBA button; render, then on the rendered window on the lower right side choose colors and alpha (triangle button), then save as image png

crazychristina · « **Reply #5 on:** March 09, 2013, 21:37 »

I just rendered the default cube after setting the output to PNG/RGBA, and saved the resulting render. It opens in Photoshop as a cube with transparent background.

dingles · « **Reply #6 on:** March 09, 2013, 23:04 »

I your render will already be isolated and contain alpha ata as long as you only have th object in the scene. You need to save the render to a file format that supports alpha data...PNG, TGA...

mtkang · « **Reply #7 on:** March 09, 2013, 23:55 »

I put a white backdrop at the back of my object.. should i remove it? if i remove it?

I will try to render first..

Quote from: crazychristina on March 09, 2013, 21:37

I just rendered the default cube after setting the output to PNG/RGBA, and saved the resulting render. It opens in Photoshop as a cube with transparent background.

mtkang · « **Reply #8 on:** March 10, 2013, 20:08 »

hi all,

i try to render outpout as png, RGBA..and remove the backdrop.. and i got isolated dark grey background.

is it how blender render as isolated object? i can remove the dark grey background in photoshop..

how can i achieve the transparent background?

thanks.

crazychristina · « **Reply #9 on:** March 10, 2013, 20:36 »

Here is the .blend I used to create this image. On my computer the image opens in Photoshop as a png file showing a cube on a TRANSPARENT background.

lbarn · « **Reply #10 on:** March 10, 2013, 20:43 »

When you got to the step after rendering, but before saving, pressing the (triangle button)lower right side choose colors and alpha, did you see the background turn into a black and white square background, i.e. no background? Then you can save as a png that you can use in photoshop, to add a white background for an isolated object, or add into a composition.

mtkang · « **Reply #11 on:** March 11, 2013, 04:27 »

Hi, the 'triangle button' is under 'output' tab under the 'scene'?

by the way i am rendering it with cycles..i wonder does it make a difference.

I can render the output with a dark grey background which easy to remove from photoshop, but i wonder how to turn it to transparent in blender.

Quote from: lbarn on March 10, 2013, 20:43

When you got to the step after rendering, but before saving, pressing the (triangle button)lower right side choose colors and alpha, did you see the background turn into a black and white square background, i.e. no background? Then you can save as a png that you can use in photoshop, to add a white background for an isolated object, or add into a composition.

crazychristina · « **Reply #12 on:** March 11, 2013, 05:27 »

OK, Cycles. I was using BI. I just tried checking Transparent on the film subpanel of the Render panel, with output set to PNG/RGBA and it rendered with a transparent background using Cycles.

mtkang · « **Reply #13 on:** March 11, 2013, 07:34 »

thank you very much!

Quote from: crazychristina on March 11, 2013, 05:27

OK, Cycles. I was using BI. I just tried checking Transparent on the film subpanel of the Render panel, with output set to PNG/RGBA and it rendered with a transparent background using Cycles.

mtkang · « **Reply #14 on:** March 11, 2013, 09:34 »

it works! thanks!

Quote from: crazychristina on March 11, 2013, 05:27

OK, Cycles. I was using BI. I just tried checking Transparent on the film subpanel of the Render panel, with output set to PNG/RGBA and it rendered with a transparent background using Cycles.

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Author Topic: blender - isolated object (Read 7513 times)

mtkang

tab62

mtkang

lbarn

mtkang

crazychristina

dingles

mtkang

mtkang

crazychristina

lbarn

mtkang

crazychristina

mtkang

mtkang

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