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cinemino

Feather Texturing

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I've created a plane and in photoshop i've created a feather.

i've saved the texture as tiff, transparent png, and so on.

I've created a new material and set the image as color material.

then used the same image for alpha.

It become transparent background but around the feather border compare a grey line and i can't remove it.

Please help me to use transparent texture.

Some tutorial or advise is good!

tnx

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Are you trying to texture A feather Object? As IN the Hair module?

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Guest Damsel

Is your alpha image a true black and white with no greys at all?

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my alpha image is the same of color image i've not a real alpha image.

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I'm pretty sure you need to work on pixel level to get the alpha straight. If you set your render settings to "straight alpha" does that change anything?

If not, than it's the PNG

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You may need to start again then. In photoshop make the feather colour channel on a layer. When you're happy with it hold control and click on the layers thumbnail to select it's pixels. Make a new layer and fill the selection with white. Inverse the selection and fill with black. Now save the layers out as JPEG's for a colour, and alpha channel. smile.gif

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so i create 2 jpeg?

1 for color

1 for alpha

is it ok?

Well but when i create alpha jpg i've just black/white image not gray scale on the border of image?

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arhmm? waT?! just render out the image with alpha channel turned on in the save settings. Everything else leave default. Make sure to render against a black background. Then just use that as your alpha and diffuse. The image might be bigger physically but all you have to do is save out the alpha channel from PS if yu want flattend jpgs. I always prefer a single file for diffuse and alpha. But if yu intend to use a lot of textures or objects using this texture then go jpg.

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well someone here tells to use 2 images (diffuse+alpha) someone tells to use one!

Ok so if i want to use one, how can i save from photoshop alpha channel?? What kind of image (png, tiff or what?)

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Color channel = colored jpeg or png or tiff or psd.

Alpha channel = Black and White (Black transparent, White opaque). If you get a visible line around your image, increase the black by a pixel to mask more.


Win 7, 8 core PC with 12 Gb RAM 64 Bit

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Please do a google search for "Straight alpha" , "Pre Multiplied Alpha"

, "Photoshop". etc

Most info in this thread is simply misleading because of not understanding

how the two different alpha types work.

Just adding a black or whit background is not the cure.

As a hint, PS does not default produce Straight Alphas, you need to know

how to produce it yourself. How that is done depends on what kind of

image you want to export for use in a 3D app such as Cinema.

Cheers

Lennart

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