Questions tagged [depth-map]

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23 views

Generate DOF (not depth) map from blender

I've found several ways to generate depth map from blender, but if my focus point is not the closest one, or the width of my focus area is bigger, I can't really use them to add depth of field later, ...
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0answers
8 views

multi layer depth map for edges ambivalent probelm

I want to render a depth map. The issue is in the edges between 2 depths z1 and z2: As discussed in this post: How does anti-aliasing work in cycles? There are 2 options: aliasing and anti-aliasing ...
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18 views

Mist/Depth artifacts are appearing near a transparent object

Im getting many wierd artifacts with mist pass and depth pass.their size/shape doesnt change by samples, re-render or light paths. denoising worsens the mist by making it smudge.what is the cause of ...
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10 views

Create Depth Pass Based on Real World Units

I'm trying to generate synthetic training data as part of some research for my university. This data should resemble depth images captured from my camera (Realsense L515). I've been able to get good ...
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1answer
518 views

Calculating 3D world co-ordinates using depth map and camera intrinsics

I am looking to annotate points on a rendered 2D image and then use the rendered depth map with the camera intrinsics to find where the point in 3D space is. This process is identical to creating a ...
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1answer
124 views

Compositor viewer node output never updates when rendering via Python script

Based on this answer, I am trying to extract the per-frame RGB and depth arrays of some animation scene. However, the compositor render layer and viewer node setup that I am programmatically building ...
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0answers
28 views

Large values (Inf) in raw depth map

I render depth maps, in Cycles, in OpenEXR format (because I need the actual distances) and later read them in python using the openexr package. I save the depth maps like this: Connect 'Depth' of ...
2
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1answer
151 views

Is it possible to save depth values and rendered image in different formats?

I render rgb images and depth maps for a series of frames in blender. For depth, I actually need to store the float values as such, so that I can read them off directly in a python file later. For ...
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0answers
41 views

How to render depth image with python scripts?

I want to render depth image using python scripts, and make its background black!! because I'm beginner of blender I don't know how to do it can anyone help me?? I want to create depth image like this....
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1answer
131 views

Z buffer read from exr file is all ones

I render RGB images and their depth maps as well for a series of frames (using cycles). Specifically, I need not a B/W depth png/jpg image, rather the actual depth values itself, which I can later ...
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39 views

Blender python (bpy) rendering incorrect depth

I am new to blender. I am trying to render RGB composite images, albedo and depth map of the context scene in blender. RGB images are rendered well, but the depth image is renderer incorrectly. I am ...
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1answer
1k views

How to render height map in Blender?

I've seen several tutorials on how to use a displacement modifier and a texture to create a terrain from height map data, but I want to go the other way. Given that I have used sculpt tools to hand ...
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45 views

Export Kinect like depth map from animation

Hello Blender community, this questions is a bit confusing and belongs only partial in this forum, but I hope some one has still some advice for me. So let me start to explain what I am trying to do. ...
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2answers
100 views

How to set object at a specific depth from the camera, at a certain pixel

I want to set an object at a certain distance (or depth) relative to the camera; and also at a particular pixel. Example: I set up a camera at a random position in blender. I want an 1280x720 image. ...
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1answer
32 views

Depth images dont get saved

I render multiple frames in blender, and if not the frames also, I at least want to save the depth maps, as an image. As can be seen in the screenshot I have attached, I have added a 'File Output' ...
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0answers
75 views

Custom shader script in compositor (de-linearize depth buffer)

Some months ago I wrote a minimal opengl 2.5d game engine with pre-rendered backgrounds (such old Resident evil, Alone in the dark and Final fantasy games). Depth is managed through a grayscale image ...
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2answers
313 views

How to get Z-distance (not depth) from camera to object for every pixel in the frame?

I am currently doing a computer vision task and got stuck on the following problem. I need ground truth values for my sequence. I have a nice sequence where the camera moves trough my scene and ...
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0answers
294 views

Import Blender EXR in Python EXR for depth map

I am currently trying to extract a depth map created by Cycles and read it in Python to undo the distortion introduced by Cycles. Let me tell you what I've done so far step-by-step. I cannot use ...
2
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1answer
1k views

Mist and depth render passes in Eevee are either entirely white or very little shows up

Hi everyone! I'm trying to figure out how to adjust the mist pass but it doesnt work well to begin with. I either get a completely white pass or it looks like this. Could someone better explain to ...
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1answer
1k views

I want to turn a 3D mesh into a height map and then use the height map to create a new 3D mesh with no undercuts

I basically have a 3D model of a man. I want to cut this out on a CNC machine, but the undercuts are proving to cause problems during the toolpathing and confusing the computer. I want to use ...
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0answers
249 views

View Z depth vs depth in preview

My rendered view z depth does not match the depth in the viewport and I'm wondering why / if there is an explanation for this. I've a super-simple scene: Just, a camera looking at a flat plane, ...
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0answers
359 views

Get image pixels from multiple viewer nodes

For Blender 2.81 and Cycles render. I want to access all of the following data passes from a Python script: Z Normal ...
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1answer
223 views

Depth map obtained from orthographic camera has no white pixels even when there is no object before the far clipping plane

I'd like to generate a height map from my scene that goes from -50m to +50m (the idea is to use that height map to flatten out ocean waves as they get nearer to the shore, and possibly more advanced ...
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4answers
1k views

White Noise in Blender Z Pass with alpha value in Mix Shader

I am trying to get the depth value using z pass from my scene which is a simple head model, but while rendering there is white salt and pepper noise in the hair and eyelash. I have saved in both png ...
2
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1answer
380 views

How to get accurate Z depth?

I‘m struggling to render accurate depth maps of different 3D models using Cycles and was wondering if anybody has/had similar problems and how she/he resolved them. I would greatly apprichiate help! :...
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1answer
59 views

How can I achieve the visual of objects pressing against membranes more beautifully?

Source files here and here. Hey folks. Currently building a project for a client which involves shapes and creatures pressing and moving against a membrane. I've tried using shrink wrap, cloth ...
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1answer
579 views

Transparent BSDF cause noise in depth layer

I have system that consumes depth and RGB output of Cycles renderer. I can observe noise in depth maps when I use transparent BSDF with ...
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1answer
1k views

Visualizing depth image after accessing render results

Based on the work of [1] I obtained the depth data of my scene as shown in the code bellow: ...