model-viewer | TamarinTech 's 3D printing model viewer | 3D Printing library
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kandi X-RAY | model-viewer Summary
TamarinTech's 3D printing model viewer
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QUESTION
I have a Three.js project with an animation going on and I would like to find the skeleton bones position at different times.
If I go for example to: https://modelviewer.dev/examples/animation/index.html and find the Three.js scene:
...ANSWER
Answered 2021-May-19 at 03:09Skeletal animation (or "skinning") is applied to the individual mesh vertices on the GPU1, because there are often many more vertices than there are bones, and updating them all on the CPU would be computationally expensive.
However, the transformations of the bones themselves are computed on the CPU in three.js. The distinctions that may not be obvious here are:
- The
.positionproperty of the bone, inherited from THREE.Object3D's .position property, is a local position, relative to the position of its parent, and its parent, and so on. - Most skeletal animation operates by rotating, not translating, individual bones. For example, a rotation of the shoulder will have the effect of both translating and rotating the descendants of that bone (i.e. the rest of the arm).
Putting all of this together, what you want to find is the world position rather than the local position of a particular bone. The Object3D parent class has a method to help with this, object.getWorldPosition:
QUESTION
I am trying to use Google's model viewer to load 3D models. It has a button. But I want that button to be visible after the model is completely loaded. So, I used to use this Vanilla JavaScript code
...ANSWER
Answered 2021-Apr-15 at 22:57You need to control element within a React wrapper. See react-model-viewer, this is is their wrapper
QUESTION
I need to pass custom css properties inline to a React component (Google Model Viewer in this instance),combined with more run-of-the-mill styles (background width,height etc). There's quite a lot of questions on using custom properties inline with react, but I couldn't see one for specifically combing the properties with other styles.
I have the styles here, with the commented out style being an example of the custom property.
...ANSWER
Answered 2021-Jan-25 at 13:14Shouldn't a simple object map work? Here is a sample code -
QUESTION
Using express-fileupload I have a JSON object of a file which I store in my database.
For example:
...ANSWER
Answered 2021-Jan-18 at 14:48Should work whatever file type.
Since your-tag will likely correspond to a specific file.mimetype you can probably simply hardcode that type like:
Useful links:
- https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
- https://nodejs.org/api/buffer.html#buffer_buf_tostring_encoding_start_end
Not sure why this couldn't be simply answered before.
QUESTION
I have started toying around with A-Frame, and I have used their Model Viewer example as a starting point. I have tried to make this model viewer part of the html site, where it would be a smaller part of the grid:
...ANSWER
Answered 2020-Dec-11 at 15:53If you want to embed a scene within some custom layout there is the embedded component:
QUESTION
I'm using a component react-stl-obj-viewer to render a 3d stl image. I can render the 3d stl image correctly. Once the image is rendered, I'm trying to move it around and have a button to take a screenshot of it.
...ANSWER
Answered 2020-Jul-31 at 19:18Fixed the issue. It was an array that I needed to reference.
var testThumbnail = geeL[0].toDataURL("image/png");
instead of
var testThumbnail = geeL.canvas.toDataURL("image/png");
QUESTION
I have a Tomcat running a JavaWebApplication within I want to use the element (info here) to display a 3D model with 'changable' textures. Therefore I want to get the necessary gltf file from a Servlet, so I can take impact on it, rather than just accessing a file. I know, that both (the gltf structure as well as the model-viewer in my webapp) work, as it works flawlessly if i refer the src like this:
ANSWER
Answered 2020-Jul-16 at 13:28A JSON *.gltf file, by itself, might or might not have all the parts of the model included. It may reference an external .bin file, and textures as external .jpg and .png files. The BIN file in particular contains 32-bit float vertex data, so without that file you won't see a single polygon.
You can check the contents of the .gltf to see if it's there: Search for .bin, .jpg, and .png. The .bin would be listed in a section called buffers, and the images listed in a section called images.
Also, check the DevTools Network tab, to see if actually requested those external files, and what the response was for each one.
For hosting on websites, .glb is typically the best form, as all of these extra parts are bundled into a single download. GLB is intended to give the best performance on the web, of any of glTF's various flavors.
QUESTION
I am trying to use Google's model-viewer web component to display a model on my website. The documentation says the component has a 'loaded' property which is 'read only' and 'returns true if the load event has fired since the last src change'. I'm trying to use this property to call a function when the component has loaded but I don't think I'm accessing it correctly. Should I be using componentDidUpdate to check if this property has changed? Or is there a way of using onload()?
My code so far looks like this:
...ANSWER
Answered 2020-Jul-07 at 12:14From the React docs:
componentDidMount() is invoked immediately after a component is mounted (inserted into the tree). Initialization that requires DOM nodes should go here. If you need to load data from a remote endpoint, this is a good place to instantiate the network request.
The docs for React lifecycle are here
QUESTION
ANSWER
Answered 2020-May-27 at 14:08It seems to appear that this is an ongoing issue with model-viewer as it is still in development. I would go leave some feedback on their github page, or see if this issue matches yours.
QUESTION
I'm currently trying to set up a basic .stl viewer with the possibility to preview different materials on the model itself. I have Angular 9 as framework and the whole .stl showing part is working quite fine and easy. When I try to update the Material it's simply not updating it, but showing a very strange basic material I assume. Like mentioned in the heading I'm currently using a GitHub project based on Three.js which can be found here: https://github.com/tevim/angular-stl-model-viewer
Like mentioned in the Three documentation I tried to set the material.needsUpdate and also the texture.needsUpdate flag, both without any effect.
ANSWER
Answered 2020-May-15 at 19:54The STL file format does not support texture coordinates. And without these data, it's not possible to apply texture to your meshes.
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