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.

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2answers
2k views

How to fill an object with smoke

I want to produce an object that looks similar to this: It's basically a plain and simple sphere. I know how to adjust the reflections and transparency using the material properties, but, how can I ...
8
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1answer
19k views

Texture mapping with multiple UV maps

So, as a newbie relatively new to blender, I started doing some texture mapping (blender internal Render). I created a texture for the main object and a couple of transparent decals to decorate it. (...
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0answers
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How to bake glass material in cycles?

I am trying to bake the texture of a simple bottle using cycles. The node set up is shown in the image. The transparency never bakes on to the image and always shows up as opaque. I want to export ...
3
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2answers
2k views

uv image editor alpha?

So I made an image in the uv image editor thats really simple (really just a line) and when I made the new image I checked the alpha box. but the background is simply black. Is there a way to make a ...
4
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2answers
808 views

Viewing background through alpha channel of foreground object

I have set up two planes, one in front of another, and I want to see the back plane through the alpha channel of the front plane. In the node editor I use the render results as input to a key node so ...
0
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1answer
383 views

How can I animate a mesh to be transparent without hiding the smoke that it emits also?

I recently asked this related question about animating a solid mesh into smoke, and a solution that I might use is to shroud the mesh in smoke heavily whilst the mesh animates to zero opacity, which ...
3
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1answer
1k views

How can I animate an opaque material to being fully transparent in Cycles?

I'm working on an animation with Cyscles where I'd like to make a simple face animate between being opaque and completely transparent. How can I do this?
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2answers
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Fade out objects WITHOUT use of materials

So I have a lot of objects with similar animations, but I want each one to fade out at a different time. I already have a lot of materials, so I don't want to make the list that much longer. Is there ...
2
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2answers
727 views

Textures disappear in BGE Playmode, but colliders are still there?

I have built a village level in Blender Game Engine, and up till today all was good. However now my Grass texture and my wood texture become Transparent when I enter the Play mode, but the mesh still ...
3
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2answers
16k views

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 ...
2
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1answer
389 views

VSE animated mask with scenes?

Ok so in a nutshell, I want to make a video that has 2 pictures that overlap eachother, and the overlap is animated, like this: The clips are in the VSE: And the blend file(with photos): https://...
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0answers
46 views

Animating masks to create multiple wipes [duplicate]

So... I'm making yet another video. And I want to recreate this effect: https://www.youtube.com/watch?v=hDiJ17Xgaw8 (its in the first 15 seconds) So I have kinda the general idea of how to do this, ...
5
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2answers
2k views

Can particle object color and alpha be controlled by Particle Age (Blender Internal Render)?

Can particle object color and alpha be changed in Blender Internal Render? Edit for Clarity 6 months later. Blender Cycles has this practical feature Particle Info Node. Blender Internal appears ...
13
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3answers
38k views

How to make objects draw transparent/wireframe in the viewport?

I have several objects in my scene. I want all the objects to be visible so that I can see how they relate to one another, but I want to focus on just one. To do this, I'd like to make the other ...
3
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1answer
3k views

See background image through solid shading in edit mode

I am modeling a person's head and face using front and side reference images. I have set the reference images as Background Images for the "Front Ortho" and "Right Ortho" views, respectively. For the ...
6
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1answer
842 views

Rendering Freestyle strokes behind objects using alpha transparency

Is there any way to render Freestyle edges according to their real visibility on camera, by taking in consideration the alpha transparency maps of occluding objects, without compositing multiple ...
12
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2answers
1k views

What is the difference among Alpha Over / Alpha Under / Over Drop?

They are three modes in VSE. I think I know what the Alpha Over and Alpha Under do. But I'm still puzzling when trying to understand what the key difference the Over Drop is from the other two. I've ...
5
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2answers
11k views

How to save a render image as JPEG with white background instead of default black background at alpha transparent areas?

My render image has a transparent background and when i save it as PNG RGBA every thing is OK. But when i want to save as JPEG format which doesn't support alpha transparency, save it as black ...
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0answers
923 views

Transparent Plane that receives shadow and light emitted by object

I can make a plane to be transparent and only show the shadow of an object with the Shadow only option in the Shadow category of the material. That is useful for making 2D graphics with transparent ...
9
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1answer
4k views

Setup a decal material in cycles [duplicate]

I'm trying to setup a image decal in cycles, and I can't figure how to setup the nodes to work fine. Does anyone know the solution? blendFile
2
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2answers
5k views

Textures bake transparency as white

I'm trying to bake tile maps into a single texture for someone and I'm having difficulties baking transparency. For example one texture is literally transparency with baked shadows but this bakes as a ...
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2answers
3k views

How do I set up a material with diffuse, normal and alpha (transparency) maps?

I'm finding it very difficult to set up a basic material with diffuse, alpha and normal maps. Although I've managed to create a material with diffuse and normal maps, I can't manage to get the alpha ...
2
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1answer
259 views

Render a surface transparent only if directly visible

I want to render some glass, in order to actually see something it requires a background. However I want the glass object to have a transparent surrounding. How do I make a background which is ...
18
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1answer
20k views

Render shadow on transparent background with Blender Render [duplicate]

I need to render a model on a transparent background. The models have a light source so they should be casting a shadow on a surface (the XY plane). The purpose for this is to overlay the rendered ...
0
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1answer
988 views

Unable to render an Alpha Transparant texture

I am creating rocks with a group-hair particle system of leaves on top of the rocks. The leaves was just an alpha image being textured into a plane. It was working fine. However, when I render the ...
2
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2answers
3k views

How can I bake alpha in cycle nodes-images to make leave textures for my trees?

I am trying to make scenes with natural looking trees in Blender. In Blender cycles I try to bake texture images for the leaves but I cannot manage to bake the alpha.
4
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1answer
7k views

How do I only render specific objects?

I have an orange juice splash in a jug. I want to render only the jug and juice in order to edit it in photoshop. Can you please help me how to do that? I want to have all light and shading effects ...
11
votes
1answer
16k views

Transparent Background for Animation [duplicate]

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....
2
votes
1answer
2k views

How do I create a partially transparent flag?

I'm making an animation with a flag, and I was wondering if anyone knows how to create like a transparent fabric material? The flag looks a bit dull, and doesn't look realistic at all. After some ...
3
votes
1answer
1k views

How to crop image based on Alpha in Compositor?

I wonder if there is any way to crop a image based on alpha data like this: The reason I want to do this is that I want to crop the White area of another image (of the same dimension to the Alpha ...
0
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0answers
479 views

Make transparent object get shadow from particles in Blender [duplicate]

I created a mesh, then use particles to make grass on it. I just want to take the grass and grass's shadow on render, so I make the mesh's material become invisible (by using Transparent BSDF, alpha ...
0
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0answers
77 views

Render only an object and its shadow in Cycles [duplicate]

I am trying to create a an image of an object (say a cube) and its shadow, with any other pixel except for the object and shadow being transparent, in Blender 2.7. I need this since I will place the ...
2
votes
2answers
901 views

Image plane is blocking the one behind it despite transparency

The images have alpha channel checked on. In normal view the image looks fine but when I render the images cutoff the ones behind it. There should be no gap between those 2 images but the one closer ...
1
vote
1answer
284 views

Why does a multiplied texture with alpha loose detail information?

The left image shows the texture mapped to a plane, the right one is original image in the UV Editor. The rendered image looks extremely blurred. What would be the correct material and texture ...
0
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1answer
364 views

3D scene not visible in render

I can see the test scene which comprises of the 3D text Loom-Tastic in the VSE, but when I render it disappears, Why? VSE RENDERED RESULT here is a link to my blender file
15
votes
1answer
11k views

how to render semi-transparent objects with transparent background as a png with cycles

I am rendering out some bubbles for use in a composite Photoshop image, so I need to render as a transparent png with the bubbles semi-transparent. I tried setting render output to RGBA and checking ...
9
votes
4answers
35k views

Why is the alpha channel not working?

I was trying to make a really low poly flower, basically using 2D planes and applying textures with an alpha channel (Targa, 32 bit). However when doing the UV mapping and applying the texture as ...
6
votes
1answer
9k views

How to render an orthographic image with an alpha mask in cycles?

I have created a simple grass scene with materials created in cycles. I would like to render this image with an alpha mask and without any lighting. How would I do it?
1
vote
1answer
3k views

Render Freestyle strokes behind objects with alpha transparency?

I'm trying to make a wall disappear. Does freestyle support alpha? I mean there is an alpha for strokes but all it does is making my lines disappear but I still can't see strokes behind the wall And ...
3
votes
2answers
2k views

Cycles not using transparency in decal texture?

I'm trying to apply the logo onto the glossy part and cycles render ignores the transparency and just makes it black. I've tried both png and tga using the multiple builds of blender. And it looks ...
2
votes
1answer
2k views

Casting shadows for transparent textured material

Blend file here I have two concentric cubes, both UV-textured, and sharing a material. The outer cube has a texture that is partially transparent. When I render the scene, the inner cube acts as if ...
9
votes
2answers
354 views

Compositing Layers Have Halos

I'm having a heck of a time compositing numerous layers using the Alpha Over nodes in the compositor. I have done this many times before without a problem. All the objects on each layer are ending ...
2
votes
1answer
741 views

Using Alpha Textures doesn't work properly [duplicate]

I'm trying to mix to shaders with the use of an alpha texture. I UV unwrapped the cube and adjusted the mapping but it still doesn't work. On the top of the cube there should be a P with the Glossy ...
2
votes
1answer
1k views

Transparency problem with texture using cycles

I am trying to use a basic plane and texturing it with a doily for a table. The doily texture has an alpha layer. I used a mix shader with a transparency shader and the diffuse image shader and the ...
1
vote
1answer
1k views

Only show colour and NOT transparency?

I have a hair texture , and i took away the white background , but the white hasn't gone away yet!? I want it so all the white is gone and it only shows the colours on the texture . ![Added][3]
10
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1answer
95k views

Transparent image textures in cycles [duplicate]

I added two planes in Cycles with Image Texture in png with some transparency. I covered one by the other but transparency doesn't work, I mean it is impossible to see the one which is under despite ...
8
votes
4answers
4k views

Using mask as a garbage matte to hide an object

I'm trying to use a mask to hide a part of a render layer, so that when the render layer is shown over a movie, some parts in the movie will appear to be in front of the render layer. For example, ...
2
votes
1answer
255 views

Percentile alpha control in the Compositor?

Is there a way to adjust the transparency of an image in the compositor with a percentage of the alpha of the original image? (So images that pixels that are completely transparent stay that way, ...
28
votes
9answers
40k views

Any Video formats that render with Alpha Channel?

Does anyone know if there are any video formats (besides the HUGE uncompressed avis) that you can render in that maintain the alpha channel? (i.e. for after FX etc.) I used to use quicktime, but ...
10
votes
1answer
18k views

How can I setup a Material in Cycles for Z-Transparency?

After converting to nodes in order to render using Cycles I've no idea where to enable the z-transparency. I guess the image textures alpha channel needs to be pluged somewhere but I've no idea which ...