# Tag Info

Accepted

### Non Real Time Raytracing

Path tracing is the standard technique in non-realtime photorealistic rendering, and you should look specifically into bidirectional path tracing to get effects like caustics, which you can't really ...
• 3,636
Accepted

### What physical properties are “lacking” to keep this 3D scene from looking like a real photograph?

Few things, but usually this is what it takes to make the difference: 1- the material reflection at his head, he is bald, yet the diffuse texture shows color difference where the hair is, this means ...
• 186
Accepted

### Tasks of a professional graphics programmer?

I don't know if this is exactly what you're looking for. I work tangentially in the film and TV industry. I don't work for a studio, but I work on the software that studios use for their productions. ...
• 3,401
Accepted

### The reciprocity of BRDF

You probably know that the BRDF is to calculate the reflected light, from a light source to a camera (In examples a light source and a camera is used, but it does not need to be just that). The ...
• 1,605

### Non Real Time Raytracing

Even though I didn't know about monte carlo path tracing when I wrote this, I accidentally described it. Ironically, monte carlo path tracing is the answer I was looking for at the time. Naive monte ...
• 7,801

### What physical properties are “lacking” to keep this 3D scene from looking like a real photograph?

I think you identified the problem yourself in your question : it still definitely looks like a 3d model It's obviously hard to tell and subjective, but while many things are off in this picture, ...
• 53

### What physical properties are “lacking” to keep this 3D scene from looking like a real photograph?

Hard to say because we can not see the code. Subsurface scattering might be part of that equation. I would just point out that human brains are extremely specialized in facial recognition. It has ...
• 8,437
Accepted

### Radiative Transfer Equation for Photorealistic Rendering

I suspect the answer to (a) is simply performance. Full volumetric path tracing / photon mapping based on the RTE can certainly be done (and I'm sure it sometimes is), but it's very expensive and ...
• 25k

### What physical properties are “lacking” to keep this 3D scene from looking like a real photograph?

I see several things that are off in addition to what others have said. He doesn't appear to be breathing. He's in a very cold place (it appears to be snowing), yet there's no breath in front of his ...
• 3,401

### What exactly is it about reality that is so difficult to recreate in a 3D simulation?

As @AnnoyinC already mentioned in his comment, we are simply lacking computational power and storage requirements (RAM). For the visual effects, you need to calculate every ray of light that somehow ...
• 1,251

### Wireframe mesh effect on a photograph subject

This is not something that would be called a "wireframe mesh" in computer graphics. Models are sometimes displayed as a wireframe to help visualize the topology which look like a lot of ...
• 3,219
1 vote

### How is Aperture and Pixel Size accounted for in calculating received power using ray tracing?

To understand whether your steps are correct you should compare to the mathematical formulation. Step 1 is supposedly solving the rendering equation for some collection of initial rays L_o(x_0, \...
• 2,226
1 vote

### What stops the auto-generated 3D worlds of Google Earth Pro from being MUCH more detailed and accurate?

These views are generated using photogrammetry. Usually by vehicles that are colleting GPS data about the streets at the same time. As the data collection vehicle drives by it take multiple photo's ...
• 3,219

Only top scored, non community-wiki answers of a minimum length are eligible