Questions tagged [render]
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13 questions
0 votes
2 answers
453 views
Why are the transformations of an object calculated on CPU?
If I understood correctly this is the process of rendering an object: Array of 4d vector defining points 3d points(with the fourth component 1) representing object's vertices in object/local space: <...
- 101
0 votes
0 answers
100 views
Using Perspective Rendering To Render A 3D Point
I am wondering how I can use perspective rendering to render a point onto a screen. An image showing perspective rendering: Say I have a 3d point (with x, y, and z coordinates), a point for the camera,...
user17702
1 vote
1 answer
557 views
Is there a general rule with regard to using the inverse of the "camera" to world when using a homogeneous transform matrix?
Not sure if this is just specific to this article but it says: We learned how to convert points from world to any local coordinate system. If we know the local-to-world matrix, we can multiply the ...
- 113
8 votes
1 answer
2k views
Path Tracing With Multiple Lights
I've got my path tracer working great for a single light, but I'm having trouble coming up with a solution for scenes with multiple lights. My first thought was to just send a ray to each light and ...
- 409
5 votes
1 answer
5k views
What are the benefits of downscaling on modern games?
I'm a software engineer and although I currently don't work on anything related to computer graphics, I understand how downscaling works, what I don't understand is why most modern games default to ...
- 153
5 votes
2 answers
6k views
What are the current open problems in Computer Graphics?
I did a quick investigation about the topic but there doesn't seem a decent resource to find related problems without digging into latest CG papers (unlike CS problems you can easily find a Wikipedia ...
- 243
12 votes
1 answer
926 views
Rendering in radiometric units or photometric?
In traditional rendering, it is typical to do all the calculations with radiometric units, either as full spectral rendering, or component-wise (XYZ, RGB, etc). However, as modern rendering adds more ...
- 3,872