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I read through the second one and I seem to be doing this already (comparing differing pixels and finding the image which minimizes that error). The first one is a bit covert and doesn't explain what happens very well, but thank you for the links! I'll do some research into how the first one works.

Blender
– Blender

2012-04-04 21:09:12 +00:00
Commented Apr 4, 2012 at 21:09

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Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)

<https://example.com>

[example](https://example.com)

<a href="https://example.com">example</a>

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