So I'm getting the error "TMX: unsupported compression method" using this tutorial's code and any of my own created TMX tiled map editor files.
I was just trying to figure out how to use tiled to make interesting maps, since I am creating a side scrolling game I was using this as a reference.
Any help would be appreciated :)
Tiled has multiple compression modes for saving - under File -> Preferences -> Store tile layer data as: for iOS and Box2D, this should be set to Base64 (gzip compressed).
Related
I am trying to add three.js based 3D objects to a PDF page. It seems there are no direct exporters available to do that. So I am trying to do the below thing,
Convert the gltf/stl/obj files to U3D files
Add the .u3d file to PDF page.
I am trying to do the below process and I am not sure whether this approach is possible. It will be a great help if there is any support available to do any one of the below conversions. Also if you know any other possible approaches, kindly update me!!
Input formats output format
GLTF
OBJ U3D
STL
(any
three.js supported
3D formats)
Thanks.
There are few options available to export the three.js graphics to a PDF ( static content not a dynamic U3D assets)
Static contents
Get the rendered data from the three.js webGL renderer / canvas renderer using toDataURL("image/jpeg"), change the MIME type to JPG/PNG and add the resulting stream as an image to PDF ( this worked for me)
example - https://plnkr.co/edit/Ty8BZaDcflCJH5tH?preview
Like the above approach we can use three.js svgrenderer to export the renderer contents into a SVG data stream, which can be added into the PDF ( textures, mesh may not be 100% reproduced)
The legacy API - "threejs-pdf-renderer" can be used to directly export the three.js animations to a PDF. We don't need any other dependencies to create the PDF. But this is a legacy API which uses legacy three.js version, lot of effort needs to be done to make the API to be compatible with the latest three.js version.
example - https://satheeshks10.github.io/ThreejsPDFGenerator/
Dynamic 3D contents
We can export the three.js animations into a U3D file (no direct support is available as for now), this U3D file can be directly embedded into PDF.
example - https://tetra4d.com/pdf-samples/
It seems it’s not possible to use a video as a texture with expo-gl (texImage2D is not able to take any video params, cf. context definition and API documentation). This feature is currently requested on the canny.
I'm looking to convert an expo-av video to an ArrayBuffer with pixel data or any way to pass a video as a texture to a shader.
I made some research but I didn't find any solution for the moment:
gl-react: video processing: https://github.com/gre/gl-react/issues/215
react-native-gpuimage (react-native-video is not working inside GL.Node): https://github.com/CubeSugar/react-native-GPUImage/issues/1
Actually, this could be interesting: https://github.com/shahen94/react-native-video-processing. This library purpose is to edit, trim and compress videos, but there's actually no way to pass custom shaders.
A lot of issues has been open on Github (even on the expo org expo-three package) but there's no answer yet. I'm looking for resources or any advice to accomplish this. For the moment, the best solution I can see is to do a sprite sheet.
I signed up for the Mapbox vector tiles service and I've noticed that they provide map data in .mvt and .vector.pbf formats.
I tried to open these files with normal text editor and read them with the intention to see the structure and find a way to draw some parts of a map with javascript/html drawing functions. However , the files data seems unreadable for me.
How can I parse these files , and how can I draw simple map with their content ? (I read the .MVT specs here https://docs.mapbox.com/vector-tiles/specification , but I couldn't find any solution)
Note that I want to do it from scratch , without using mapbox-js or Leaflet libraries.
Our aim is to show portait video (vertical orientation in terms of TokBox) without black areas right and leftside after archiving. Now it looks like landscape with black areas on right and left side.
We are using php server and android client for streaming.
Our steps to convert live stream in video on demand through archieving are:
start session
update stream with the parameter layoutClassList = verticalPresentation (php library)
start archieving
live stream is on -> create subsriber and watch the stream. IMPORTANT! The stream has no black areas and has CORRECT presentation on subsriber side!
stop archieving
waiting TokBox upload archieving file to Amazon s3 bucket -> the file ALREADY contains black areas right-leftside. WRONG! (please watch the video on link for better understanding https://s3-us-west-1.amazonaws.com/edtv-dev1-input/46176492/9f26ef23-aee6-42f2-8c51-d8e2685abcc9/archive.mp4 )
processing the file
Are thereabove the correct steps to achieve the goal - get video file without black areas (in portrait orientation)? Are we missing anything?
Is archieving process on TokBox sensitive to horizontal/vertical presentation? is it possible to archive the video in vertical orientation?
UPDATE: What we wanted was not composed, but INDIVIDUAL stream! TokBox creates zip file, but Amazon AWS was able to transcode it and get the correct result both in portrait and landscape orientations.
NOTE: As a default result file on Amazon AWS after Individual stream archiving is *.zip (json + video file in it). The trascoder we used gave us video without sound. So we added lambda that unzipped the file. Now everything is ok, but took a lot of time and headache.
Tokbox developer here
For composed archiving, the only two options currently available for output resolution are 640x480 and 1280x720. Trying to fit a portrait video into a canvas of the available resolutions will result in the video you are seeing.
Possible solutions:
Use the custom layout control [1]: you can override the "object-fit" property to "cover". This may not result in exactly what you want, since the output resolution will still be 640x480 or 1280x720, but the video will occupy the whole canvas, at the expense of cropping the top and bottom part. See [2]
The best solution in my opinion is to use "individual stream archiving", where the resolution will be kept as the original, and you get a file per stream. Please check [3]
https://tokbox.com/developer/guides/archiving/layout-control.html
https://developer.mozilla.org/en-US/docs/Web/CSS/object-fit
https://tokbox.com/developer/rest/#start_archive
How can we get URL within the zip created by opentok which was uploaded in s3
I was able to successfully port, cross compile and run the cairo gears
application in gles backend, on my embedded system target.
http://people.linaro.org/~afrantzis/cairogears-0~git20100719.2b01100+gles2.tar.gz
The ported samples trap, comp, text and shadow run well in cairo1.12.3
and 1.12.4.
But I face problem in running the same in 1.12.14.
I could not run the texture related samples like comp, text, shadow.
Trap plays well but the gradient could not be displayed in the gradient sample.
I use gles backend and converting all image surfaces I load from png
file to gl surface.
Let me know if there is something that should be done for the
texture+gradient samples to work in 1.12.14.
thanks
Sundara raghavan
The problem was because of the need to convert the GL_BGRA,the internal image format of cairo , to GL_RGBA for loading in to GL textures (which were GL_RGBA by default). I solved it by applying an existing patch which uses BGRA GL texture and hence avoids conversion. This was possible because my hardware is capable of both reading as well as creating bgra textures.
The Patch was found here:
http://lists.freedesktop.org/archives/cairo/2013-February/024038.html