Questions tagged [rendering]

The action of turning a scene into an end product such as an image or movie. If your question is specific to one render engine, please use its respective tag (cycles, blender-internal, etc).

34
votes
3answers
55k views

Why are some faces in my mesh darker?

While rendering a mesh with smooth shading on, I get a dark region/shadow on certain faces. The effect is more evident when smooth shading is applied to a mesh containing ngons, with the ngons turning ...
70
votes
6answers
86k views

How to avoid noisy renders in Cycles?

I know that this question is a bit old or maybe overdone, but I'm running the latest edition of Blender and when I use the Cycles engine I get really fuzzy results and I can't find a simple, non-...
36
votes
3answers
11k views

Cause of black artifacts in render?

I was following this tutorial on creating a watch and noticed that when I rendered the watch, some pieces were messed up. I'm new to 3D modeling and I've just learned Blender, I can't explain it well,...
16
votes
8answers
13k views

Why does my object not show up?

This is meant to solve this problem once and for all. What is every reason an object isn't showing up in a render or viewport in when using the cycles render engine?
11
votes
5answers
31k views

Render result is completely blank?

A scene I made is not rendering, at all. Before: After: Here are my settings:
37
votes
9answers
33k views

How to reduce fireflies in Cycles?

I often use Cycles' built in Glass BSDF shader to achieve realistic refraction effects, but in many cases, it seems that Cycles' glass caustics creates an unfortunately large number of fireflies (...
24
votes
1answer
52k views

How do I increase the render distance?

I have created a simple model here When rendering it the end of it is cut off How can I get the camera to render a longer distance?
95
votes
2answers
28k views

Render with a wider dynamic range in cycles to produce photorealistic looking images

To get images that seem more photorealistic, not only a much wider Dynamic Range is needed, but also having the color information desaturate towards white as it would happen in an overexposed ...
83
votes
3answers
189k views

Enabling GPU rendering for Cycles?

I want to enable GPU rendering, but there is no option in User Preferences > System: Why is this? How can I get cycles to render using my GPU?
78
votes
2answers
73k views

How is Cycles different from Blender Internal?

How does Cycles work and how is it different from Blender Internal? Which is better?
12
votes
1answer
12k views

Blender is rendering an older version my project

Blender is rendering an older version of my project, not the most recent one. I have made it using the Blender Render but it does not want to render in cycles either. A black and grey screen is ...
194
votes
3answers
254k views

Can Blender render pngs with the background transparent?

I would like to render an animation as a series of .png images with transparent backgrounds for use in a video. Is this possible?
19
votes
4answers
9k views

How do I avoid rendering glitches from overlapping faces? [duplicate]

For instance, here I have two cubes that are offset only on the x-axis. When I render them (using Blender's internal renderer), the overlapping faces interfere with each other and the result looks ...
16
votes
3answers
12k views

How to properly denoise renderings?

Since the Denoise feature was added to Blender I only use the default setting with it and it really does the work. But sometimes the denoise is noticable on some of my renders. How can I overcome the ...
7
votes
1answer
2k views

Strange black shading. Cannot fully light mesh. (Cycles)

Here is the viewport in material view. The node setup is just a PNG texture into a diffuse shader. And this is in rendered view. I've tried using environmental lighting as well as a directional ...
3
votes
1answer
3k views

One Object won't Show up in Final Render even though it shows up in the Preview Render [duplicate]

I have a model of a building with a sidewalk around it. Both show up when I switch to rendering mode in both Blender Render and Cycles Render mode. But: when I hit F12 for a final proper render, ...
31
votes
2answers
134k views

How to render an animation as video in Blender?

Yesterday I was working on a simple animation, an animated logo. Here is an image of the progress: I already have the animation working and everything is okay with the project, but I can't figure ...
15
votes
1answer
3k views

Black artifacts when looking through many transparent objects?

Using v2.73, cycles and a very simple scene: an array of cubes, no big deal. If I set the shader's material to transparent, the cubes in the foreground do become transparent but those far away in the ...
5
votes
1answer
2k views

Blender render crash when using subsurf modifiers.

Essentially, my problem is that i am trying to render a scene, however, blender crashes on me early during the render. I only have about 14 total objects in the scene. (It's not that complex) I tried ...
11
votes
3answers
10k views

Why is part of my model not being rendered?

Why is the selected object displaying in the 3D view, but not rendering? In object mode, it shows up: However, it does not show up in render mode: Why is this so and what causes it to hide in ...
41
votes
3answers
36k views

How to make a model cast shadows onto the world texture/background?

In most of my models, I usually end up setting a world background using an HDRI image of some kind or another. This has always been really useful for lighting in general or as a background for my ...
19
votes
1answer
56k views

Rendered image looks pixelated

When I hit F12 to render an image and zoom in it is quickly pixelated. How can I render a higher res display? I have looked through the settings and couldn't find a solution.
36
votes
3answers
104k views

Object not visible in render

I have a model which you can see here (camera perspective). In the second image, you can see how the render turned out. I'm at my wit's end trying to figure our why it's not showing up in the render....
22
votes
3answers
4k views

What are the technical differences between F12 render and viewport preview?

What are the technical differences between F12 render and viewport preview render, if any? This is all the documentation I could find about Cycles viewport rendering: interactive rendering can be ...
32
votes
3answers
37k views

How to make a cycles light emisson object invisible to the camera?

In my scene it is required to position the lights close to the main object like this: How I can make the light source invisible to the camera?
10
votes
1answer
18k views

Image Alpha Background Renders Black when using “Import Images as Planes”

I must be missing something here. I'm doing an extremely simple Import Image as Plane using the AddOn and the imported image has an alpha background but it renders (and even previews in the material ...
25
votes
2answers
60k views

No file output after rendering?

I usually am able to render successfully to the c:\tmp folder, but when I came into work today, I rendered out the image on my work laptop, and everything seems to ...
2
votes
1answer
1k views

How do you share a blender.file?

I am new to blender and have been working on a project that displays "fire" in texture but doesn't show up in render and so, I need to "share the project with others by making it a downloadable link ...
7
votes
2answers
3k views

How do I get the Glare node to output transparent instead of Black background

This is what I have so far: http://imgur.com/a/ZnFOt The rendered image has a transparent background, but the glare filter creates an output with a black background, so after merging the two ...
25
votes
4answers
19k views

Glow with depth in Blender?

What would be a way to create a glow in Blender. For that purpose I've been always using the compositor. However, that is pixels work, which means it is a 2d work. To make a 3d one, do I have to use ...
15
votes
3answers
5k views

How to properly render smoke on a transparent background?

When rendering volumes with Film > Transparent enabled, the alpha appears to be the wrong type (premultiplied/straight). In the 3D view it works as expected: This is a known bug. Is there any way to ...
13
votes
2answers
8k views

Cycles : shadows on smooth shaded mesh, strange behavior

I wonder if this is a bug, or if I missed something... When a light hits tangentially convex surfaces with "smooth shading", the shadow on this surface seems to "partially ignore" the smoothness of ...
26
votes
5answers
12k views

How to find image coordinates of the rendered vertex?

I have a simple mesh of a cube. I would like to know what are the coordinates of each vertex in the rendered image (i.e. for each 3d vertex I'd like to know it's pixel coordinates). Is there a way ...
89
votes
11answers
66k views

How can I pause a render in progress and then resume it at a later time?

I would like to pause a render that I have started, with the intention of resuming it at a later time (but during the same Blender session). How can I do this?
24
votes
2answers
92k views

Render not showing UV texture

I have added a texture to a cube in the UV editor and it shows up fine in textured view But when I render it there is no texture What have I done wrong?
15
votes
1answer
12k views

What is multiple importance sample option

What is multiple importance sample option. And the main question is Can It be simulated via OSL shader or in particular glossy shader?
5
votes
2answers
3k views

Applied boolean modifier leaving shading artifacts with flat shading

I tried to manipulate a cube with the Boolean modifier. I tried to cut out an edge of the cube with a cylinder. Also, the shading result looks awful in FLAT SHADING mode, so I turned on SMOOTH SHADING....
35
votes
3answers
12k views

Iridescence In Cycles?

Is it possible to create an iridescence shader in Cycles? Specifically for something like DVDs, soap bubbles, engine oil, etc.. I know about this technique for a DVD material, but it doesn't properly ...
17
votes
1answer
34k views

How can I render an object with an hdr background?

I have an object with an hdr for the background. What do I do in Cycles to render the background with my object? How is this different from an ordinary render in Cycles? The hdr is a big one, 350MB.
14
votes
2answers
12k views

I accidentally set an object as camera, how do I undo this?

I have a problem with rendering in cycles. In blender render my object is rendering fine, but in cycles when I pushed F12 I got only this: One more thing: when I click 0 on keyboard I'm not in camera ...
7
votes
3answers
9k views

Why are there non-visible objects in my final render?

Have Blender on about 4 machines rendering animations. Just spotted on one of the machines its rendering something different from the actual scene that I have setup. Top window shows a different set ...
4
votes
1answer
4k views

Cycles not rendering image or movie clip used as background in the viewport

First time I've used cycles rendering engine. I'm using a movie clip as the background in short animation. Selected RBGA under Property Tab, and Transparent under Film Tab. It looks good and ...
7
votes
4answers
3k views

EEVEE and Cycles render lighting differences

I get different lightning render with the same scene camera setup. Cycles render (both experimental and supported feature set) gets weaker lightning and needs more energy. How can I get the same ...
21
votes
3answers
23k views

How can I get a Depth of field render pass?

How can one make a render pass with black and white data to display depth of field based on the Settings > Camera dof settings? I want to blur or defocus in the compositor, similar to the way it is ...
21
votes
3answers
11k views

Exclusive lighting

Is (or will be) there any sort of light linking in Cycles, or a method to get a light to affect only certain objects that doesn't involve compositing two or more different render layers? Sort of what ...
8
votes
1answer
2k views

Spherical emitter does not illuminate very well?

I remember when I was recreating my bathroom and I modeled the lamp and gave it a glass material, but when I came to the lighting it got confusing. I modeled a sphere in the lamp because in real life ...
13
votes
4answers
10k views

Render Border's related check boxes - How do they work?

Render Border, is a great little function for reducing render time while experimenting, but what does the 'Render Border' check box in the Properties >View panel do - apart from turning off the red ...
53
votes
4answers
59k views

Render just part of a final image from Cycles?

I'm using an older Nvidia chip that hates running viewport renders, and I need to check if changes to the materials on a few objects not far from the center of my scene are (I'm rendering a floorplan ...
15
votes
1answer
7k views

Correct way to render crepuscular rays in cycles?

While trying to use the new cycles volumetric rending features to create crepuscular rays (with the intention of updating my answer here), I have found this to be a little trickier than I anticipated. ...
15
votes
3answers
4k views

How can I easily animate cutaway views on multiple objects?

I'm trying to create animated cutaway views on multiple objects in my scene. For example, in my car model, the seats and other interior objects are separate objects. This question talks about using ...