MVP | A demo teaches you how to write MVP architecture | Model View Controller library

As mentioned in the comment, the code...

Usually someone having a Mac M1 would have this issue. The Mac M1 processor is arm64. There was a solution posted here which requires to change terminal architecture to arch -x86_64 zsh which I did not want to do.

So, that's the workaround I was able to discover (some of the steps also mentioned in the error):

Text objects always go outwards so, even if you try something like i{, which covers a smaller region than a{, the selection will inevitably be extended.

As you mentioned, you can change the geometry of the selection with o and various motions but that's cumbersome and the alternative, leaving visual mode, moving the cursor, and selecting again, is sadly just as cumbersome.

Building a custom "shrinking" pseudo text object might be possible, though, and something the community would probably gladly welcome.

--- EDIT ---

The quick and dirty code below seems to work reasonably well for a{, a(, a[, and a<:

OpenGL is defined as a synchronous API. This means that everything (largely) happens "as-if" every command is executed fully and completely by the time the function call returns. As such, you can change uniforms (or any other state) as you wish without affecting any prior rendering commands.

Now, that doesn't make it a good idea. But how bad of an idea it is depends on the kind of state in question. Changing uniform state is extremely cheap (especially compared to other state), and implementations of OpenGL kind of expect you to do so between rendering calls, so they're optimized for that circumstance. Changing the contents of storage (like the data stored in a buffer object used to provide uniform data), is going to be much more painful. So if you're using UBOs, its better to write your data to an unused piece of a buffer than to overwrite the part of a buffer being used by a prior rendering command.

I was able to achieve the goal using some dirty work-around, but I do agree that using parameters would be much better way unless ternary operators are available for Azure DevOps YAML pipeline.

The issue is that ${{ if condition }}: is compile time expression, thus the variables under variable group are not available.

I was able to use runtime expressions $[]

Reference: https://docs.microsoft.com/en-us/azure/devops/pipelines/process/expressions?view=azure-devops

My pipeline:

You are looping thru lovedits data property and set response to movie try to set your response to lovedits

AVPlayer does not support 'streaming' (HTTP range requests) as you would define it, so either use an alternative video player that does or use a real media streaming protocol like HLS which is supported by AVPlayer & would start the video before downloading it all.

CloudFront is great for delivery in general but is not truly needed - you may have seen it mentioned due to CloudFront RTMP distributions but they now have been discontinued.

S3 supports a concept called byte-range fetches using HTTP range requests - you can verify this by doing a HEAD request to your video file & seeing that the Accept-Ranges header exists with a value set to bytes (or not 'none').

Load your MP4 file in the browser & notice that it can start as soon as you click play. You're also able to move to the end of the video file and yet, you haven't really downloaded the entire video file. HTTP range requests are what allow this mechanism to work. Small chunks of the video can be downloaded as & when the user gets to that part of the video. This saves the file server & the user bandwidth while providing a much better user experience than the client downloading the entire file.

The server would need to support byte-range fetches in the first instance before the client can then decide to make range requests (or not to). The key is that, once the server supports it, it is up to the HTTP client to decide whether it wants to fetch the data in chunks or all in one go.

This isn't really 'streaming' as you know it & are referring to in your question but it is more 'downloading the video from the server in chunks and playing it back' using HTTP 206 Partial Content responses.

You can see this in the Network tab of your browser as a series of multiple 206 responses when seeking in the video. The entire video is not downloaded but the video is streamed from whichever position that you skip to.

Unfortunately, AVPlayer does not support 'streaming' using HTTP range requests & HTTP 206 Partial Content responses. I've verified this manually by creating a demo iOS app in Xcode.

This has nothing to do with S3 - if you stored these files on any other cloud provider or file server, you'd see that the file is still fully loaded before playing.

Now that the problem is clear, there are 2 solutions.

The easiest solution is to use an alternative video player which does support byte-range fetches. I'm not an expert in iOS development so I sadly can't help in recommending an alternative but I'm sure there'll be a popular library that the industry prefers over the in-built AVPlayer. This would provide you with your (extremely common) definition of 'streaming'.

However, if you must use AVPlayer, the solution is to implement true media streaming with a video streaming protocol - true streaming also allows you to leverage features like adaptive bitrate switching, live audio switching, licensing etc.

There are quite a few of these protocols available like DASH (Dynamic Adaptive Streaming over HTTP), SRT (Secure Reliable Transport) & last but not least, HLS (HTTP Live Streaming).

Today, the most widely used streaming protocol on the internet is HLS, created by Apple themselves (hey, maybe the reason to not support range requests is to force you to use the protocol). Apple's own documentation is really wonderful for delving deeper if you are interested.

Without getting too much into protocol detail, HLS will allow playback to start more quickly in general, fast-forwarding can be much quicker & delivers video as it is being watched for the true streaming experience.

To go ahead with HLS:

1. Use AWS Elemental MediaConvert to convert your MP4 file to HLS format - the resulting output will be 1 (or more) .M3U8 manifest files in addition to .ts media segment file(s)

2. Upload the resulting output to S3

3. Point AVPlayer to the .M3U8 file

Lighting calculations should not be performed in clip space (including the projection matrix). Leave the projection away from all variables, including light positions etc., and you should be good.

Why is that? Well, lighting is a physical phenomenon that essentially depends on angles and distances. Therefore, to calculate it, you should choose a space that preserves these things. World space or camera space are two examples of angle and distance-preserving spaces (compared to the physical space). You may of course define them differently, but in most cases they are. Clip space preserves neither of the two, hence the angles and distances you calculate in this space are not the physical ones you need to determine physical lighting.

I just ran through your question at lightning speed, forgive me if I don't fully understand it, but it looks like you need to declare your web app as a resource again, but as existing. This allows you to access all the props you need from your app service.

This blog explains how to use existing resources in Bicep: https://hexmaster.nl/posts/bicep-existing/