Blender Stack Exchange
Blender Stack Exchange

Questions tagged [transparency]

Transparency can be anything from an alpha-channel in an image, to shaders in the BGE, to transparency in a material, to the alpha pass in the compositor.

Documentation on transparency in materials from the blender manual.

1773 questions
12
votes
1 answer

Transparent Background for Animation

How I can have an object in the foreground with a transparent background? I do not want to have a background that is just keyed out because that always leaves halos even when I do the correct lighting. So how would I go about having a background…
rain
  • 519
  • 3
  • 6
  • 16
9
votes
3 answers

Opacity of an object in 2.8

I am trying to change the opacity or alpha of an object so its see-through in 2.8. How do I do this? I can't seem to get to figure out how in 2.8. Example of what I am trying to do is below.
Mark Ivanowski
  • 101
  • 1
  • 1
  • 2
7
votes
2 answers

premultiplied alpha?

I would like to know in blender (internal) if premultiplied alpha is the same effect of "alpha clipping" in the alpha blend mode? I have found this : "PREMULTIPLICATED ALPHA The transparency information is stored in the alpha channel and also in…
RG1988
  • 615
  • 5
  • 18
  • 31
6
votes
2 answers

exporting video with transparent background

I have searched but not found an answer that exactly answers or works. I have a rotating rendered head animation that I want to export with a transparent background so I can import into final cut pro x and lay over video footage or still imagery. I…
patrick
  • 71
  • 1
  • 1
  • 3
6
votes
1 answer

Why is my alpha pass binary (just 0's and 1's) in Cycles?

In Blender Render, my rendered alpha pass has intermediate values (e.g., 0.83) at the boundary -- great for anti-aliasing compositing! However, when I switch to Cycles, my alpha channel is always binary, i.e., consisting of only 0's and 1's. For…
Sibbs Gambling
  • 719
  • 2
  • 15
  • 30
4
votes
4 answers

Render ONLY the Alpha Channel

I would like to render just the alpha channel in an animation, in order to use it as a matte when editing video. How would I go about doing this?
Nat Karmios
  • 225
  • 1
  • 3
  • 6
4
votes
2 answers

What is the easiest method for making an image plane half-transparent?

I'm just setting up an image and I have to use units, so I want to see the grid when looking from top. Currently the image blocks the grid. Just want to make the image a little transparent. Must I use shader properties etc?? I'm new to blender sorry
Sadun Kal
  • 71
  • 1
  • 1
  • 6
4
votes
2 answers

make invisible depending on point of view

suppose I have modelled a room like that: when I look at it from outside like in screenshot, I want the walls whose normals are not going towards my point of view to go transparent. In other words, I want to see the insides of the room so that the…
Serhii
  • 293
  • 2
  • 13
4
votes
2 answers

Alpha not working on reference image

I'm following this beginners course but and we should make the reference image transparent, but it doesn't do anything for me. Why is this happening?
Markus123
  • 61
  • 2
3
votes
1 answer

Transparency of Image Empties not working

I'm trying to setup my blueprints in Blender, and I've more or less achieved it, but the image empties are not displaying the pictures well. Edit: I think this picture more clearly describes my problem What is going on with the rendering?? It's…
Mentlegen
  • 33
  • 1
  • 4
3
votes
1 answer

Infinite Falling Images

I am a bit of a noob when it comes to animation but here goes. I need to create a movie/video that has falling poppies and i need them to fall until the video stops, but I need them to fall on a transparent background because I will be projecting…
Jack Moore
  • 31
  • 1
3
votes
1 answer

Rendering black transparency

I am struggling to find a cause for the lack of transparency while rendering movie clips. I have some green screen footage. In the compositor I have added the movie clip and a keyring node. Selected the eye dropper and in the viewer node it is…
Piid
  • 51
  • 3
3
votes
2 answers

Help to find IAP_SHADELESS

I am new in Blender. I am trying to modify the transparency of a plane as an image. And apparently this node is necesary. I hope you can help me. Thanks.
Mariana
  • 31
  • 2
3
votes
2 answers

Is it possible to convert image texture's black color to transparent?

I have 100 tif images from confocal microsocpy that have black background (NOT alpha) and I would like to stack them to recreate some color labeled structures in 3D. In order to do that, I need to make the black color transparent. I tried to mix…
marcheenek
  • 586
  • 2
  • 7
  • 14
3
votes
2 answers

How to make one clear object invisible inside of another clear object?

So for my animation, I have water draining out of a clear sphere. Unfortunately, through the sphere, the flow of water is visible when I don't want it to be. I only want the flow to be visible when it exits the bottom of the sphere. I still want…
objectedbear431
  • 349
  • 2
  • 14
1
2 3
…
9 10