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.

243 questions with no upvoted or accepted answers
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Alpha textures show only when selected

I'm making a radar display animation (those spinning once) for a movie project. What I do is: Set up a material in cycles to see how it fits together (using b&w images) Create alpha textures to ...
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3k views

Alpha transparency not showing in cycles viewport

Using cycles I have simple cut out people in the scene: planes with .png textures on them. The transparency shows in the material editor and is rendered correctly but is not displayed in the viewport. ...
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I can't make a sphere blend, with transparency, with another (Earth - Clouds)

sorry for the noob question, but I'm following this tutorial and when comes the part to make the Earth appear "behind" the clouds, it doesn't work. I'm stuck at this for a while and I can use some ...
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1answer
98 views

Transparent object shaddows in volume material [Blender Internal]

Currently I am fighting with lighting artefacts within a smoke simulation, when the lightsource is within the volume and especially also within a transparent object within this volume. (Note this ...
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0answers
59 views

How to remove unwanted refraction (bent-straw illusion) from cycles material?

I am working on a render of Saturn as part of a scale model of the solar system, and have run into a problem with the transparency of the rings. I am using an alpha-mapped png image which seems to ...
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0answers
137 views

I am trying to bake a normal map of a set of objects with transparency

I have been trying to bake a normal map for a clump of grass I want to put in a game engine. The problem I am facing is that whenever I bake the normal map it ignores the transparency texture on the ...
3
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1answer
1k views

transparent hair texture for the BGE

I'm trying to create polygon hair like final fantasy characters in blender for blender game engine can someone help me out in creating good quality texture with z-transparency I have already tried ...
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0answers
71 views

How to create an image whose alpha value changes according to a curve through time in node-editor?

I connected an image-node with a composite-node and connected a value-node into the alpha of the composite-node. I changed the values and the image changed its transparency. Then, I connected the ...
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0answers
277 views

How to combine Z-Transparency and Mask Transparency in BI

I have a plane, in front of a cube, with a texture used for alpha. Now i like to use the BI Mask-Transparency to (alpha) hide everything behind the white areas. The black areas should be complete ...
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0answers
50 views

Cycles texture with alpha doesn't work after using AnimAll for animating UVs

I need a texture to be animated with AnimAll and have transparency at the same time. Is this possible? Here is the .blend file. It is the bird that encounters the problem. I'm trying to make its ...
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1k views

Objects behind partial-transparent objects are masked out when selected

The setup: Display/shade mode is Textured, Shading is Multitexture No objects have materials, they're purely textured in the 3D view using the info assigned via UV/Image editor. No objects have "...
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0answers
161 views

Lighting a volume with a bi-color point light (2)

This question is a following of this one I would like to light the center of a cylindric volume with a gradient light White -> Red -> Blue radially from the center to the border. I made a test of ...
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60 views

Texture transparency problem when exporting collada file

I seem to be having problems with my dae objects. I have some space farms and the transparency on the glass is just made using a texture. It looks fine when rendered in blender: But it's for an iOS ...
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2answers
169 views

Eevee transparent glass on transparent background?

Ok, in 2.8 eevee I have "Transparent" checked on film tab, my material settings follow all listed here https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&...
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63 views

How to create more realistic shadows?

Obligatory disclaimer: This is my first post on blender.stackexchange so forgive me if my post isn't on par with what's usually asked here. Explanation: I'm running v.2.80 of Blender currently and ...
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113 views

Using alpha texture as a mask

I have some grass with several flowers sticking out of it. Grass and flowers are meshes with PNG images with transparent background. Alpha channel is set up properly, textures are perfectly see-...
2
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1answer
98 views

How to combine transparent environments with alpha masks?

So there's this Toei anime from 2003 called Air Master and it had a very unique outro in which the main cast would sprint through their hometown. I'm fairly confident that it's environment CG, given ...
2
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1answer
1k views

Export transparent material in GLTF in blender 2.8

I am trying to export a glass material in gltf. Here is the material principled shader, notice I have transmission set to 1.0: this gives me this result in cycles (the glasses have the glass material)...
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1answer
2k views

Blender 2.8 transparency & volumetrics?

Can somebody walk me through the process of getting volumetrics and transparency working in EEVEE. I recently hopped on from 2.79 but all my glasswork just isnt working. I tried all the alpha channels ...
2
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1answer
172 views

Texture rendering looks different from preview

I created a 3d duck with png alpha feathers. I merged feathers to the body of the duck. Cycles rendered preview is cool but when I export the feathers take the unalpha texture of the body (not of the ...
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0answers
270 views

How to make an alpha background in blender eevee?

I want to render an object in eevee without rendering the HDR background but without losing the HDR lighting.
2
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1answer
139 views

Reflection on an semi-transparent object

I'm trying to create projection of objects in my scene onto one specific object (in my case a sphere). In theory it is simple, by giving the object a reflective surface but here is my problem, the ...
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0answers
33 views

Can I send the BGE image, with alpha layer to other SW like openCV or OBS studio?

I would like to overlay 3D video with tranparency generated by the BGE over a real-time video. So, I supposed that I have to access to the images buffer(with RGBA pixel) and send it to openCV or OBS....
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96 views

Why do coloured planes start to turn white when they're made semi-transparent?

I want to do an octant with semi-transparent panels with drawings on them. I achieved part of the desired effect, but the drawing is almost invisible against the white background, or when the other ...
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0answers
77 views

How to apply two different materials in Blender Internal on front faces and back faces, *while involving transparency*

Basically, I want to see through the transparent front faces to the opaque back faces. This isn't the same as flipping all normals and executing backface culling because I want the front faces to be ...
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0answers
137 views

Simulate light bending due to gravity

I'm trying to demonstrate light bending due to gravity, but my knowledge of Blender isn't up to the job. As a test I have a sphere with the Glassy BSDF shader. The colour is set to white, and I've ...
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0answers
1k views

Is it possible to extrude a PNG image?

Is it possible to extrude a PNG image in Blender? (Perhaps using animation nodes or sverchok?) If Blender can read the alpha, wouldn't it also be possible to draw curves along the edges? (assuming the ...
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0answers
244 views

Baking materials with alpha-blended textures

I'm currently trying to bake some low-poly assets for use in realtime applications. I'm familiar with baking high-polygon meshes into low-polygon versions, but it would be helpful to merge multiple ...
2
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0answers
844 views

Rendering multiple scenes and joining them into one

I am starting a new architectural project of an airport, and I am trying to create a scene where an aeroplane is landing on the runway. Now before I even start doing it, I am interested to know if it ...
2
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0answers
321 views

Object with transparency makes the object behind it transparent

I have an object that consists of two layers, one of which is transparent, the other is opaque. However when viewing the opaque object through the transparent one the opaque material has some ...
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0answers
414 views

Cycles bakes a transparent areas to black

With Cycles, rendering transparent texture is OK, but baking turns alpha to black color. In contrast, Blender Internal bakes alpha OK. What should I do with nodes in Cycles? Help plz. P.S. Maybe the ...
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0answers
312 views

Background Image - change default opacity value from 0.5 to 1 permanently?

When i add a background image then it is semi transparent. Hard to see. I need to change it to opaque by setting the corresponding slider to 1 instead of 0.5. And i have to repeat this step with every ...
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0answers
176 views

Glass issue, trasparent vs holdout shader

I have a problem with the transparency shader. I need to use it combined with the glossy one, mixing using a fresnel factor. Unfortunately I keep getting the same result...an annoying black area. ON ...
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0answers
57 views

Rendering fading in text object problem

I'm trying to make an intro video and stumbled upon the following problem. Ì have 4 text objects parented to a box. The box provides the moving animation and this works without fail. The text objects ...
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0answers
182 views

How can I access a texture's alpha from Blender Render's material nodes?

There is no alpha output in texture node (as in Cycles) and there is no "Separate RGBA" node.
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0answers
153 views

Matte Render from Alpha

An already rendered animation needs to have the background color-corrected. It will take too long to re-render the shot in full color. How do I turn the alpha channel of the combined layers (which are ...
2
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0answers
61 views

material not fading alpha smoothly in blender internal

I have animated the alpha value of a material. At one frame, the material is all dark, at the next´, it is as it should be. Here is the material in the two frames: I was hoping that you could give ...
2
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0answers
277 views

Cycles Integrating glass into live footage

I'm trying to integrate transparent objects rendered with cycles into live footage. The problem is that when compositing, even with alpha, the original grey sky is rendered through the glass instead ...
2
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0answers
312 views

How to see inner structure of an object in blender game engine?

My goal is to be able to look the inside structure of a complex object in blender game engine. For this, I am writing a python code that enables me to change the transparency of the object while ...
2
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0answers
386 views

How to game-render a mesh through/behind other?

I was making a character with a manga like style, and It got to show the meshes of eye balls, eyebrow and eyelashes through the hair, but not throug the face skin or ny other parts of the mesh. Making ...
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0answers
1k views

Transparent Plane Still Casts Shadow

In cycles render I have a RGBA movie of a man waving that I'm using as a texture on a plane. Using nodes, I can make the alpha channel transparent, but the plane is still casting its rectangular ...
2
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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 ...
2
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1answer
406 views

Alpha channel and specular map together

I am trying to make this can label with some transparency around worn-out edges but I just cannot figure out how to add specular map to the texture at the same time. That fac slot is quite busy. Is ...
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0answers
19 views

remove artifacts from transparent image

I'm trying to render an image using cycles and my rendered image has these background artifacts that look like lines. These lines match up with the extent of the picture. I made both images (the one ...
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1answer
30 views

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?
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34 views

How to disable transparent backgroud in eevee render?

When I render an image with eevee, in the background I get this "chessboard" background which indicates its transparent - how to disable this? I tried going to the Render dashboard, then Film and tick/...
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0answers
43 views

Transparency in Blender 2.8 GPU Python Module

I've been messing around with the new GPU python module in Blender 2.8. But I cannot find a way to make my lines and triangles transparent. The alpha channel is completely ignored. I even tried it ...
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0answers
45 views

2D cutout object transparency

EDIT 2: I realized with cycles on it almost works as suggested but I only get a "shadowed" version of the tree to control tranparency: Do you know how to make it so it shows the original color ...
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0answers
113 views

How to see vertex alpha transparency?

How can I see vertex alpha as I paint it in Vertex Paint mode in 2.8? I get how to see vertex colors, via the node system, in LookDev, but I can't seem to figure how to see vertex alpha as I go to add ...
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0answers
53 views

How to layer (transparent) materials?

I am generating layered patterns using procedural textures. that is easy enough in a single material using mix shader nodes. what I would like to achieve though is ...