Questions tagged [supersampling]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
1answer
86 views

Multiple samples per pixel and texture blurring

As far as I know path tracers (or super-sampling antialiasing) typically calculate the final color of a single pixel by averaging the result of all samples taken inside that pixel. This gives a nice ...
3
votes
0answers
98 views

Sample color calculation in rotated grid supersampling

I'm rendering a scene using scanline method. In order to get rid of aliasing we need to render a scene with higher resolution (2x, for example). I'm trying to figure out how to calculate the color of ...
1
vote
0answers
70 views

Anisotropic filtering and multisample anti-aliasing

Anisotropic filtering and multisample anti-aliasing both imply supersampling. In EWA and (derived) Feline AF algorithms a non-uniform weighted average is used. But in case of MSAA not. Why this is ...
2
votes
0answers
208 views

Nearest depth upsampling

Nvidia in this article presented a way to upsample low res buffer to full res buffer called Nearest Depth Upsampling. This works by comparing four depth values from downsampled low res depth buffer ...
3
votes
1answer
658 views

Do animation studios like Pixar, Dreamworks, and Disney use super-sampling?

Does any of their rendering techniques involve rendering an area at a higher resolution just to scale it down in order to mitigate artifacts? I know they use ray methods rather than rasterization ...
12
votes
2answers
674 views

What is the fundamental reasoning for anti aliasing using multiple random samples within a pixel?

In graphics, it's common to take multiple samples within the bounds of a pixel and combine them together (most commonly just doing an average) for a final sample pixel color. This has the effect of ...
20
votes
1answer
3k views

Anti-aliasing / Filtering in Ray Tracing

In ray tracing / path tracing, one of the simplest way to anti-alias the image is to supersample the pixel values and average the results. IE. instead of shooting every sample through the center of ...