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).

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196 views

How does anti-aliasing work in cycles?

As far as I understand, cycles anti-aliasing in cycles (per default), works by sampling around a specific arc/vector determined by the camera position/rotation. This explanation and my experience ...
7
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0answers
216 views

Blender on Windows is skipping python script. (brenda on windows)

We've been using Brenda for quite some time now for rendering architectural stills. Since our editing stations are doing nothing at night, I started making a desktop app that allows you to pick jobs ...
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0answers
180 views

Killing Blender processes

So I'm currently using Java's ProcessBuilder to run Blender Python scripts for rendering in the background and that's working fine. However, I would also like to abort Blender at any time, and unless ...
4
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0answers
21 views

Point cloud animation

I have around 5500 .ply files, which amount to about 7 GB of point cloud data; each file is one frame of animation. Is there any feasible way of importing this into blender for processing? I am ...
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0answers
39 views

What exactly happens when Blender 'Synchronizes objects' at render time?

In effort to reduce render times between each frame (Eevee renderer), I've retopo-ed and made sure there are least amount of polygons possible, but I've reached the point where I can't sacrifice any ...
4
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0answers
789 views

“Unsupported channel layout” Error, when trying to render with AAC-Audio

I try to render a Video with Blender's video editor. Under Output I set FFmpeg video as file format. Under Render I set Container...
4
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0answers
2k views

nVidia skin shader with the Principled BSDF

I've been using a skin shader primarily based on the Brecht skin shader, which is itself based on the Sum-of-Gaussians approach as seen in 14.4.7 from GPU Gems by nVidia. Its Cycles adaptation, which ...
4
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0answers
496 views

Import and render raw volumetric data

Is it possible in Blender to import and render raw volumetric data (outcome of fluid simulator)? I have a set of 3d arrays of floats in C/C++ and I used to render it frame by frame with OpenGL using ...
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0answers
221 views

How does 'Align Active Camera to Selected' decide where to place the camera?

Thanks to this answer, I'm using bpy.ops.view3d.camera_to_view_selected() to automatically place a camera so that it frames the selected object for rendering. But ...
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0answers
361 views

Can I render ambisonic b-Format audio?

Im looking for a way to render spatialized sound to 1st order ambisonic b-format. I assumed the 4ch option in scene audio settings was the key. But that just seems to render a quad speaker setup? The ...
4
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0answers
1k views

Synchronizing object in Cycles

I have a model of a butterfly that uses a displacement map for most of the detail on the mesh at render time. To get an accurate render, I have it subdividing 4 times for the render before applying ...
4
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0answers
91 views

Is netrender still only useful for multiple frames?

I saw this post from 2013 and this post stating that the NetRender plugin does not yet have the ability to render single frames properly. Is this still true, or is the functionality just hidden away ...
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0answers
886 views

Setup network render for cycles render on LAN

I am trying to setup network render with cycles as the rendering engine. My use involves rendering hundreds of images and I have already written logic for it in python which is working fine on single ...
3
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0answers
118 views

Cycles Render, Looks wrong in Render ViewPort, correct in Material ViewPort

Using Cycles Render! Have tried things for hours on end and can't figure it out, please help! I simply want to bake the texture from the Material Viewport, but it continues to bake the looks of the ...
3
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0answers
203 views

Rendering with OpenGL in Blender does not show the intended rendered image or animation

I am trying to render animations and images fast using the OpenGL feature in Blender but even though I want it to render a fully rendered image or animation, it only renders the solid image, or the ...
3
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0answers
219 views

Rendering progress bar doesn't show me the total percentage

Hi I have some questions regarding status bar when doing the render. when rendering animation, i can see the progress bar, but it only showing the progress of current frame rendering. Is there any ...
3
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0answers
252 views

What is the fastest way to get pixel data out of the camera?

I'm trying to speed up a script that has to generate a black and transparent object (those are the only two RGBA colors), and use the pixel data coming from pictures of it shot from multiple angles. ...
3
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0answers
600 views

Ambient Occlusion with Cycles

So far I've been using the following setup to render the pure object-shadow in a studio environment. Rendered with BlenderRender and than composed in Photoshop. But since the fact BlenderRender will ...
3
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0answers
194 views

Strange Rendering Behaviour…Branched Path Tracing

I started rendering with Branched Path Tracing after learning about the benefits. However, after waiting for hours for a render to finish, the renders always end up with some blocks looking like they ...
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0answers
224 views

Hide an object in a linked group

I have a character made of several objects that I am linking into a scene. The character's objects are part of a group, and I'm linking in the group. However, for certain scenes I want to hide some of ...
3
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0answers
86 views

Strange light from glass

I'm doing a scene with a room with a table. On the table I have some wine glasses, but I get this strange light from some of them. The glass to the left looks OK, but the other are not OK. It seems ...
3
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0answers
142 views

Mist doesn't work when looking through a glass object

I am working on a project. There is one scene that the camera is looking through a window that use the glass material to see the view outside. I decided to turn on the mist pass. Then I saw something ...
3
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0answers
477 views

Rendering Animation in background?

Can I render a scene in Blender in background while working on another scene in foreground? Rendering takes some time, but I do not want to watch an hour of animation rendering while I could edit the ...
3
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0answers
827 views

Multiple GTX 10xx No GPU devices in Cycles Compute Device

I have 4 Geforce GTX 1080. Nvidia 378.66 driver Windows 10 64bit. Blender v2.78b Blender User Preferences -> System -> Cycles Compute Device -> None Cycles render does not recognize my 4 Geforce ...
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0answers
644 views

Adding motion blur to a video sequence

I am wondering whether it would be possible to use Blender to add a simulated rolling shutter motion blur to a video sequence. I have a video sequence, taken at 240 FPS with a global shutter camera. ...
3
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0answers
601 views

Why does my glossy object look flat in render? (Cycles)

I've been playing around with cycles, and got a nice glossy material, and it looks good when multiple objects lie next to each other on the ground. But when the objects are in the air, they look flat, ...
3
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0answers
562 views

Render view showing random seams and causing blurring to textures

I'm a bit new to blender, but I been working on this for about a week now and big hangup came once I got textures applied to the model. It's hard to see, but there are visible seams in the rendered ...
3
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0answers
579 views

Rendering fluid simulation and assigning material to water

I am working on some fluid simulations in Blender, however this tool is completely new to me and I am having some issues in rendering the output to have a realistic aspect. I have built a water basin,...
3
votes
0answers
88 views

Mesh modifications are shown in viewport but not rendered

Usually I use Processing and Java for my graphics, but I thought it would be nice to try out some Blender scripting because I really like the quality of the cycles render engine. I am currently ...
3
votes
0answers
58 views

Defcous Node algorithm

I am working with Blender to generate defocus images using the Defocus filter it provides in the Node Editor. The official doc says that the blurring is done as a "post-process" using the Z values in ...
3
votes
0answers
351 views

What firewall settings are necessary for a render farm?

I don't use Blender myself, but it is installed in our teaching labs. I'm the system administrator for these labs, and I'm trying to configure the computers so that one of our students can use them ...
3
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0answers
89 views

compositor rerender layer

This is my preview render in the 3D Viewport. When I hit F12, I get this render result: I achieved the render result in the compositor before I changed some things in Layer 1. This is the ...
3
votes
0answers
353 views

Problem with tree render

I'm newbie and tried to do a tree in blender, basing on YT tutorials. Unfortunately, it's looks like most of leaves disappear, when i render it, while the rest, are completely dark. In object-mode ...
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0answers
1k views

Speeding up the Object Synchronization when rendering

When I have large scenes with lots of geometry building the BVH and "synchronizing" the objects. Is there a way to speed it up? I am using Blender 2.77.
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0answers
191 views

Volume scattering is limited by the fire simulation domain

I have a scene with fire and smoke simulation, adaptive domain enabled . Fire is placed inside a cube with the volume scatter shader . But the light scattering around the fire appears to be limited ...
3
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0answers
493 views

How can I render a proper normal pass for smoke in cycles

I would like to render a normal pass for smoke in Cycles like this one: I'm aware of this method mentioned in Blenderartists but the result is far from the result needed to relight in post (via ...
3
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0answers
185 views

File output node and output panel both exporting during animation

I have an animation ready to render but there is a small annoying issue. I currently have a basic file output node to export the raw render and a mist pass and they are both set to export to the ...
3
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0answers
34 views

Do rays fire if you have no materials of their type?

If you have no transmission materials, does Cycles still process transmission rays? Is there any speed increase to disabling a ray type if you don't have any materials that use it?
3
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0answers
109 views

Preview and final render of grass are different

I am making a park with a path in Blender, but I have a problem with the particles. I've put the emission number at 200000 (for starter). At Viewport Shading - Render the grass looks normal (full), ...
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0answers
420 views

Images rendered on CPU and GPU are not the same

Why is is my image different when rendered on CPU and GPU?
3
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0answers
179 views

The problem of distortion on the composite

Hi all, I have a problem. I will render an object, is simply a box, get the rendering, compositing, then distort it. As a result of rendering over a live video the cube is smaller and renders with a ...
3
votes
0answers
3k views

Stop animation render after current frame

For long running animation renders, is there a way to stop the render once the current frame is finished? I leave my machine rendering over night, and when I return the next day, I want to stop the ...
3
votes
0answers
539 views

Pixels in Cycles render

I'd created glass bottle filled with corks, rendered it in Cycles and I've got low resolution pixeled render. It does not look like the problem with fireflames everybody writes about: number of ...
3
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0answers
3k views

Make object not receive cast shadows

I know you can make an object not cast shadows on others by disabling Shadow in Ray Visibility. But how can you make an object not receive shadows cast by other objects?
3
votes
0answers
288 views

Freestyle Noise Modifier Animation

I've started getting into Freestyle, and found that for a rough, sketchy look, the spatial noise or perlin noise modifier under Geometry tab works great, however when I animate things, these modifiers ...
3
votes
0answers
223 views

Keyed Particles don't render

I made a Keyed particle animation. I have 3 base objects with particle systems and a 4th object with Keyed set in the particle system settings. So the particles travel between 3 states/objects. The ...
3
votes
0answers
673 views

How to avoid crashing?

Whenever I try to render a file (it's a bear based on a tutorial from youtube) Blender crashes after finishing Building BVH. Is there a way to prevent that or it's helpless?
3
votes
0answers
281 views

Script for 3D viewport in rendered mode seems to have timing problem

When running this script, the 3D viewport in rendered shading doesn't update properly, compared to script-saved screenshots, or manually generating the screen (typing lines of python in the python ...
3
votes
0answers
191 views

Static grass animation - grass looks differently in different frames (it's not animated though)

I made some grass using Particle System and grouped grass objects (each object is a clump with lots of blades). I didn't do anything to the grass, the only thing that has any keyframes during my ...
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0answers
480 views

How to set up SSS on cycles for efficient rendering

How do I set up SSS shaders properly to render efficiently in animation projects. Are there any specific optimizations to consider? I am trying to render some orange juice in a bottle and getting ...