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Questions tagged [render-passes]

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2answers
681 views

Rendering single .exr from passes with different shaders?

How can a single .exr containing all passes from a scene be created if certain passes have different shaders applied. For example the matte pass might have different color surface shaders while you ...
1
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0answers
477 views

How to composite shadow pass with image sequences?

I rendered passes from a scene in another program and wanted to use Blender to composite them. What is the node setup for combining a diffuse color pass and shadow pass into one image? Thanks! Color: ...
0
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1answer
346 views

Network render one still image not an animation

I know it's possible to render an animation in a network by rendering every frame with one PC. However, I want to render one image. I would like to know how. Should I let every computer render one ...
2
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2answers
2k views

How to achieve a flat colored render pass from material id/index for masking

I'm trying to get a render pass that splits all different materials into flat shaded objects (like material id in 3ds max) with anti aliasing. The output colors aren't important. (random colors are ...
2
votes
1answer
646 views

Rendering Environment pass without Combined pass in Cycles

Using Cycles,I have a scene with Volume Scatter shader connected to World Background and an HDR image connected to the surface, Rendering the scene while checking Environment pass is giving me a nice ...
3
votes
1answer
10k views

Z depth pass in Cycles, rendering white [duplicate]

Using Cycles as a render engine, I assigned an empty as a camera Track To target, and as the focus target in Depth of Field, yet rendering the scene, the depth pass is rendering all white, as if there'...
3
votes
1answer
165 views

Render pass that output center of object of each pixel

I am looking to create a render pass that takes a scene and outputs, for each pixel, the 3D world coordinate of the center of the object to which that pixel belongs. In other words, all pixels that ...
1
vote
1answer
800 views

How to render the fire and smoke as different passes?

Is it possible to render the fire and smoke (the same simulation), in Cycles, separately, for example as different passes?
3
votes
1answer
1k views

Difference between a mist pass and a normalized z-buffer?

In Cycles there are two different render passes which seem to give some kind of depth information: the Mist pass and the Z-Buffer pass. I know that the z-buffer gives the actual distance (thus ...
2
votes
0answers
114 views

How do you use the Z-Depth pass? [duplicate]

Whenever I render something in Blender Cycles the renderlayer node seems to have a Z-Depth output, however whenever I try to use it it is completely white. What is it useful for?
4
votes
3answers
6k views

How to output ID masks as seperate files for compositing?

When I click 'Render' or hit F12 and select IndexOB pass in the viewer I'm able to see a mask (white on black) as expected, but when I click 'Animation' to output a series of these masks as '.png' ...
5
votes
2answers
317 views

UV render pass non-linearity

I am writing a piece of software that needs pre-rendered UV maps for on the fly texture mapping. I tried rendering these maps in blender, but the color values in the resulting image do not change in a ...
2
votes
1answer
966 views

How to do seperate render passes in blender?

I a lot of VFX breakdown that uses something they call "render passes". From what I see, they are rendering the clip in seperate ways (like rendering the ambient occlusion, specular, shadows, depth of ...
5
votes
1answer
957 views

Vector Blur Node not blurring

I have a bunch of boxes flying apart in Cycles, and I'm using the Vector Blur node for motion blur. Nothing's blurring. It's the simplest compositor setup: RenderLayer Image/Z/Speed goes to Vector ...
5
votes
1answer
1k views

How to do a lightcast only Layer in Cycles?

I try to render a layer that only includes the light as if it was cast onto an object. But it seams it is not possible to make a material that is invisible for the camera but bounces light from a ...
8
votes
1answer
910 views

What causes this mist pass glitch?

The problem, and what I've tried so far From the screen shot you can see that sky-blue from the mist color is leaking through the trees due to white spots that are occurring in the mist pass on the ...
6
votes
1answer
482 views

Is Z-Render Pass accuracy dependent on sample count? Are others like object id? (Cycles)

So I have a single-frame project and want to send it to a renderfarm that does not support OpenEXR or compositing (SheepIt). Can I simply do a 1 sample pass on my computer and still get high accuracy ...
2
votes
2answers
3k views

Compositor ID Mask not working?

I want to give my model a glare effect at robots eye, so I gave the material assigned to the eye Pass Index of 1 then when I went to compositor and made this node set up, in the viewer I could ...
17
votes
1answer
6k views

Can someone explain the layer system?

I am really confused with the different uses of the terms "Layers" and "Passes" in Blender. Can someone please explain how they work in Blender. I know about Render Passes like AO, Diffuse and so on, ...
2
votes
1answer
437 views

Blender render passes

If you set up render layers in blender and you have them all ticked wouldn't blender render all of those layer for you all at once one after the other with all the associated maps that have been ...
1
vote
1answer
185 views

Show sample rate pass on Yafaray

Is there a way to render an anti-aliasing sample rate pass on Yafaray like V-Ray does? This is extremely useful to fine-tune the render settings and have a quality output without cranking the AA ...
3
votes
0answers
787 views

I can't find the pass with foam

I render a scene in Multilayer EXR sequence (Cycles). After I've combined the passes together everything is OK, but there the foam is missing. I've checked all the passes, and I don't see pass with ...
2
votes
1answer
192 views

Some objects are not rendered in UV pass

I created the sea and floating object - the ship's hull. The ship floats in the sea, using the method from this tutorial - https://www.youtube.com/watch?v=11F1NRpqrzY (dinamic paint). Then I modeled ...
2
votes
0answers
276 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 ...
5
votes
1answer
1k views

Accurate IndexOB and IndexMA passes

I'm trying to get an accurate index pass for compositing. My geometry (a window in this case) consists of straight lines and it would be nice to have a perfect mask for color correction. As you can ...
2
votes
0answers
296 views

Correct Shadow Pass in Internal?

I'm trying to extract a shadow pass in internal but it isn't looking like expected. This is what the render looks like: But the shadow pass looks like this: It brutally cuts off the side of the ...