regl | 👑 Functional WebGL | Graphics library
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of regl
regl Key Features
regl Examples and Code Snippets
const regl = require('regl')()
const drawBeats = regl({
vert: `
precision highp float;
attribute vec2 position;
varying vec2 uv;
void main () {
uv = position;
gl_Position = vec4(position, 0, 1);
}
`,
frag: `
precision hi
const regl = require('regl')()
const camera = require('regl-camera')(regl, {
center: [0, 2.5, 0]
})
const bunny = require('bunny')
const normals = require('angle-normals')
const drawBunny = regl({
frag: `
precision mediump float;
varyin
import createRegl from 'regl';
import createCamera from 'canvas-orbit-camera';
import createLine from 'regl-line';
// Setup the canvas
const canvas = document.getElementById('canvas');
const { width, height } = canvas.getBoundingClientRect();
canvas
Community Discussions
Trending Discussions on regl
QUESTION
I'm trying to render something to texture using a library called regl
. I manage to render an effect using two render targets and i see the result in one.
Capturing the frame after i've done rendering to the target looks like this, and it represents a screen blit (full screen quad with this texture). This is how i would like this to work.
Once i pass this to some other regl commands, in some future frame, this texture attachment seems to get nuked. This is the same object that i'm trying to render with the same resource, but the data is gone. I have tried detaching the texture from the FBO, but it doesn't seem to be helping. What can i be looking for that would make this texture behave like this?
...ANSWER
Answered 2021-Sep-20 at 18:09This ended up being a problem with Regl and WebViz. I was calling React.useState
to set the whatever resource that regl uses for the texture. For some reason, this seems like it was invoked, which "resets" the texture to an empty 1x1.
QUESTION
I'm currently trying to find a way to dynamically create some firewall rules (with the ufw ansible module) on some hosts. In the current context, we're talking about a docker swarm.
What I want to do is to create a set of rules (different protocols, ports) per source ip, but to have that dynamically expand with the number (and IP) of host, so that whatever is the amount or IP of the nodes, it always ends up creating one set of rule PER node on each node. Ideally, I would be able to exclude the current host it's running on as well.
I'm not very familiar with ansible and I'm not sure it's possible, as it would probably require to loop within a loop when creating the rules.
I've tried to join the address within the group with ip_swarm: "{{groups['all']|join(',') }}"
but ufw doesn't allow you to create rules that way and require one line per port/ip/proto it would seem (or ansible does, but looking at the code for the module, it seems to be ufw).
I'm assuming if there is a way, this is with some jinja loop in defining variables ? Or maybe with_subelements ?
Here's my current code, though that won't help as this was made for the case of a variable holding a string with comma separated values for IPs :
...ANSWER
Answered 2021-Aug-18 at 13:04Well, turns out it was much simpler than what I intended. Ansible does have nested loop, with either with_nested
, or by using non depreceated options, loop
with the product
filter (the first option being easier to read). See https://docs.ansible.com/ansible/latest/user_guide/playbooks_loops.html
My vars file that contains the FW parameters (for indication) :
QUESTION
I need to create a type declaration for an external module. I need to create a mapped type for this declaration and failing to do so the module looks like
...ANSWER
Answered 2021-Jun-24 at 13:22There are some issued with this type definition.
- I belive you just cannot declare mapped type together with known properties in the same scope syntactically
() =>
is not a valid type definition
I believe what you're looking for is something like:
QUESTION
I've got a script wherein I have two functions, makeplots()
which makes a figure of blank subplots arranged in a particular way (depending on the number of subplots to be drawn), and drawplots()
which is called later, drawing the plots (obviously). The functions are posted below.
The script does some analysis of data for a given number of 'targets' (which can number anywhere from one to nine) and creates plots of the linear regression for each target. When there are multiple targets, this works great. But when there's a single target (i.e. a single 'subplot' in the figure), the Y-axis label overlaps the axis itself (this does not happen when there are multiple targets).
Ideally, each subplot would be square, no labels would overlap, and it would work the same for one target as for multiple targets. But when I tried to decrease the size of the y-axis label and shift it over a bit, it appears that the actual axes object was drawn over the previously blank, square plot (whose axes ranged from 0 to 1), and the old tick mark labels are still visible. I'd like to have those old tick marks removed when calling drawplots()
. I've tried changing the subplot_kw={}
arguments in makeplots
, as well as removing ax.set_aspect('auto')
from drawplots
, both to no avail. Note that there are also screenshots of various behaviors at the end, also.
ANSWER
Answered 2021-Apr-12 at 23:24You should clear the axes in each iteration using pyplot.cla()
.
You posted a lot of code, so I'm not 100% sure of the best location to place it in your code, but the general idea is to clear the axes before each new plot.
Here is a minimal demo without cla()
:
QUESTION
I am building a TypeScript module and I want to eventually publish to NPM but I first want to import it into another local host project to test. Both projects are in TypeScript.
The module successfully compiles with tsc
and outputs what appears to be correct files into the dist
directory. The module includes a storybook that imports and compiles the module successfully through relative local paths.
In the host project I have tried both npm link
and local npm install ../localmodule
to import the module.
The module tsconfig is:
...ANSWER
Answered 2021-Feb-04 at 05:11make a file with extension {{name}}.d.ts
global.d.ts
QUESTION
I have an App in which I want for a specific button to rerender the Chart
component. This chart component has an animation I want to fire when my button is called
ANSWER
Answered 2021-Jan-02 at 05:00First of all, in "React" you should use a conditional setState inside "useEffect". So, as per your code you should replace this code:
QUESTION
I have map tiles (256px x 256px) stored in a texture atlas and want to select a tile and draw it with the adjacent 8 tiles around it. My texture atlas is something like this (named the tiles 1-9 for simplicity):
I already have a setup to make the texture atlas. The tiles are stored in a random available location and I can get the texture coords from the tile coords. E.g. texCoords for tile 5 could be: [{x: 0.00030517578125, y: 0.00018310546875}, {x: 0.01593017578125, y: 0.01580810546875}]
This works fine for drawing a single tile, but now I want to draw with the adjacent tiles, so 9 tiles to a framebuffer like this:
I am using regl if that matters, but the main part I am struggling with is how to set up the shaders. I will always just draw 9 tiles to a 768 x 768 framebuffer. I can send the texture atlas and 9 uniforms with the texCoords for the tiles, but where do I go from there? I could probably figure out how to do it with 9 draw calls, but can it be done with only 1 draw call?
I would really appreciate any feedback.
...ANSWER
Answered 2020-Sep-09 at 07:04I originally was drawing a single tile with the triangle strip
primitive and 4 vertex positions. I could not get this to work properly when extending to 9 tiles. I now understand that it was because there would only be one texCoord for each vertex, which would not work when the texture for each tile was in random positions. I guess I could use degenerate triangles somehow?
I changed to drawing with triangles
primitive which made it much simpler. I now give 54 vertex positions and texCoords and it now works as required. There might be better ways to do this, but it works for me.
QUESTION
This is to help those who face a similar issue. My builds were failing when trying to install the jupyterlab-plotly extension. My Jupyter Lab version is Version 1.2.6. The log was as follows:
...ANSWER
Answered 2020-Apr-14 at 14:35The issue, as indicated by the log file, seemed to be that the node
in my anaconda environment was outdated.
QUESTION
I'd like to remove the error when I have focus on my input. Here is my input:
...ANSWER
Answered 2020-Feb-19 at 14:27Use reset
method on focus
event.
QUESTION
After returning to our project after the weekend my team was met with the error "error Couldn't find package "3d-view@^2.0.0" required by "gl-plot3d@^2.4.2" on the "npm" registry." on our CI pipeline during the install phase. Additionally, this error occurred when trying to add packages with yarn, terminating the process.
This error is happening on the front-end side of our project and doesn't show up upon starting it normally via yarn start. On the last push before the weekend everything went normal without any errors.
Log of our CI job starting at the install command:
...ANSWER
Answered 2020-Feb-12 at 13:57I was able to fix installing the missing package manually:
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