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, eevee, blender-internal, etc).

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14
votes
1answer
2k views

Per-Vertex lighting in GLSL?

How can I achieve per-vertex lighting (like in single/multi-texture shading) in GLSL with all of the other GLSL features (like buffer shadows, texture layers, etc.)? Bonus points if it can be done in ...
8
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0answers
65 views

how to write a custom projection type?

Is it possible to create a lens shader with EEVEE/Cycles ? I'd like to have the control over the camera position and the ray direction per sample. This allows to simulate various conventional lens ...
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0answers
157 views

Cycles Renderer - Updating Shaders and Images Every Frame?

This question is more of a curiosity to the potential of increasing render times, however, after finding very little out about this anywhere else, I am thinking it may be an intentional feature. I am ...
8
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0answers
276 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 ...
8
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1answer
1k views

Antialiasing textures in cycles (Blender 2.77 and higher)

I would like to get an answer to a frustrating question. https://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.77/Cycles In this link is "Anti-Aliasing is now enabled for baking. (c359343)" ...
6
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0answers
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Rendering large image sizes in Eevee (Over 64k pixels)

I am working on creating a wrap for several walls spanning 25 to 60 feet long. People are going to be looking at these fairly close so I don’t want to go below 200 dpi for my final print quality. That ...
6
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0answers
143 views

How to redraw status bar in Blender 2.80

I've added my own progress bar to the Blender 2.80 status bar (the footer of Blender) with the following abstracted code: ...
5
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1answer
1k views

2.80 - use Eevee and Cycles together for motion blur issue

I have one question about one problem in my experiment with motion blur in Eevee. I know that in this time is not supported and maybe will be supported in future official release as another primary ...
5
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0answers
257 views

Optical flow generated from cycles render is not proper

Scene generated from Blender, and flow is given. As it can be seen the flow generated is not proper, it is in a zig-zag format. I see the scene at and above horizon have more zig-zag. Can someone ...
5
votes
1answer
181 views

Smoke Simulation Vibrating

Last week I started making a volcano that was starting to erupt. I've got some sparks and I made a nice smoke simulation. I clicked Bake All Dynamics and then rendered. The result was a nice volcano ...
5
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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 ...
5
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0answers
234 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 ...
5
votes
2answers
340 views

Why does this add shader create so much noise?

This question is based on the shader in this answer. When I render the scene using plain glass for the material ball, it takes about 500 samples to converge. Here is the node setup and the result at ...
5
votes
1answer
454 views

Force Cycles GPU rendering for a Render Farm

So basically I'm on vacation for 2 weeks with a laptop without a CUDA device. I do have access to a render farm with GPU rendering support. Now the problem is that I can't setup blender to render in ...
4
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0answers
72 views

Which Denoiser to turn on?

Which denoiser should I use? Does it matter? 1. View Layer Properties Denoiser OR 2. the Intel Open Image Denoise --> which I know is quite powerful. So why use the denoiser under View Layer ...
4
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0answers
30 views

How to write EXIF data in rendered images?

I'm trying to render an image in cycles. version 2.83.5. trying to write metadata or Exif data into the image. In the output channel, I ticked every box on metadata. But I didn't find the EXIF data ...
4
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0answers
49 views

Blender won't render sound (even when enabled) in Compositor

I'm having fun compositing some videos on Blender and it's awesome. However, when I'm done compositing a video and start rendering with both Compositor and Sequencer checked, the video renders with ...
4
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0answers
592 views

Is it possible to render Annotations made in View Space?

I have some animated annotations made in the 3D Viewport and I cannot render them with viewport render. It looks like the problem is that they were made in View Space. Is there any way to have them ...
4
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0answers
81 views

Cloth simulation drive rig rendering issues

Goal: Create rig with springy bones for i.e. auto belly fat simulation. Issue: When rendering I'm unable to see spring effect on bones that are driven by objects with is driven by cloth simulation. ...
4
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0answers
678 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 ...
4
votes
1answer
416 views

Fluid simulation only shows the domain

I was making a fluid simulation, but when I try to bake it, it only bakes the domain. The fluid doesn't appear from the inflow. Do you know why? Thanks. This is what appears when i render
4
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0answers
69 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
2k 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
433 views

GPU Rendering Stopped Working

I was using GPU CUDA rendering with Cycles and it was working fine, but part way through the render it stopped working and I had to continue the render with the CPU. Now the "GPU Compute" option in ...
4
votes
0answers
577 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 ...
4
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0answers
156 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 ...
4
votes
0answers
3k views

Convert Animation Nodes to Object and Keyframes

I have This Node Tree in Animation Nodes: As you can see it creates objects and edit their location. but When I render, even If I normally bake all the Dynamics, the cache disappears and then it ...
4
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0answers
318 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 ...
4
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0answers
535 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
725 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 ...
4
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0answers
4k 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 ...
4
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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?
4
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0answers
2k 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
votes
0answers
440 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 ...
4
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0answers
93 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 ...
4
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0answers
924 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 ...
4
votes
1answer
131 views

Why is my smoke bright on the edges?

I was doing some motion tracking and I implemented some smoke. Once I rendered the scene, there is this bright perimeter framing my smoke. I'm not sure if this is a bug or not but i would like to know ...
3
votes
1answer
47 views

Can I save a render region?

I'd like to be able to define a Render Region and recall it, if possible. Is there a way to do this? As it is now, a drawn Render Region is only temporary, and only one can be drawn at a time. You can ...
3
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0answers
23 views

Blender hair in viewport looks nice and in render deformed

Essentially that's it, I have styled the hair and everything and my viewport is set to display the same amount of hair as in the render, so I was expecting the same shape as in the render, but when I ...
3
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0answers
28 views

How to render materials in Thumbnails preview?

In 2.83, files saved with thumbnails preview is surely a wonderful feature for all of us. As the image above, the material is obvious and identical with the files which I saved without any camera. . ...
3
votes
0answers
34 views

File Output node question

I want to describe an output file path in the File Output node were Blender will know a last variable in the file path is the name of the main .blend project file. This will save updating the File ...
3
votes
1answer
152 views

Weird blown out colours in renders eevee

I have a weird problem with blown out colors when I render with atmosphere and bloom. It's weird because I'm rendering a video with 300 frames, and the glitch shows up at about 30 random frames. I can ...
3
votes
0answers
1k views

Is there a way to get cavities in your renders?

In the viewport menu for solid view, there is a cavity option. I was wondering if there was a way for my models to render like that.
3
votes
1answer
1k views

Blender 2.82a cannot use CUDA or OPENCL

I am running into an issue that I am unable to solve! I am using blender 2.82a, I have an NVIDIA GT630 installed in my system, and am using Ubuntu 20.04. I want to use my GPU to render my scene, but ...
3
votes
0answers
220 views

Custom Renderer as an Add-on

I have been writing a custom raytracing renderer in C++ and I would like to natively integrate it with Blender 2.8 as a custom renderer. I know that this is possible, as I have seen many projects (for ...
3
votes
0answers
261 views

Unsure about use of matrix_world

Some Context I have a computer vision task where I have to generate some synthetic data from rendered images of a 3D model(liver). So to do that, I have first to generate a bounding box around that ...
3
votes
0answers
89 views

Cycles and EEVEE strange polygon problems

to the point: Why are polygons visible when rendering on cycles (Attention to the wheel), but not on eevee? hdri is same on both renders. The wheel has a smooth shade. In solid mode, everything is ...
3
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0answers
317 views

Black squares showing up in render

I’m following a tutorial right now and I have a problem with my final renders. I’m using open cl with my AMD RX 5700 XT and AMD RYZEN 7 3700X since it faster, but the problem that I found out that is ...
3
votes
1answer
131 views

Why is my light shining though my object when the smoke is on?

Does anyone know why my lightsource is visible though this object? It ony happens when i apply the smoke! i am using the eevee render. Best regards, Daniel there is a link to my file underneath the ...
3
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0answers
572 views

Blender Can't Find GPU

I have 2 NVIDIA GTX 1080 Tis with updated drivers and CUDA installed. I’m currently trying to render my scene in Blender 2.81 (though this happens on other versions of Blender as well) on Ubuntu 18.04....

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