Threejs object with multiple material doesn't work with RayCasting












2















I have created a 3d object using blender and exported it as .obj file.



I am trying to load that .obj file using OBJloader in threejs. That is a single object with multiple material in it. It is loaded without any issues.



I am trying to track which material the user has clicked in a 3d object. I am using raycasting for this. Since raycasting works only at object level, I am not able to get which specific material user has clicked.










share|improve this question




















  • 4





    I've made a PR to make this task easier: github.com/mrdoob/three.js/pull/15613. If it gets merged, you can evaluate intersection.face.materialIndex and then retrieve the correct material from your materials array.

    – Mugen87
    Jan 19 at 11:10
















2















I have created a 3d object using blender and exported it as .obj file.



I am trying to load that .obj file using OBJloader in threejs. That is a single object with multiple material in it. It is loaded without any issues.



I am trying to track which material the user has clicked in a 3d object. I am using raycasting for this. Since raycasting works only at object level, I am not able to get which specific material user has clicked.










share|improve this question




















  • 4





    I've made a PR to make this task easier: github.com/mrdoob/three.js/pull/15613. If it gets merged, you can evaluate intersection.face.materialIndex and then retrieve the correct material from your materials array.

    – Mugen87
    Jan 19 at 11:10














2












2








2


0






I have created a 3d object using blender and exported it as .obj file.



I am trying to load that .obj file using OBJloader in threejs. That is a single object with multiple material in it. It is loaded without any issues.



I am trying to track which material the user has clicked in a 3d object. I am using raycasting for this. Since raycasting works only at object level, I am not able to get which specific material user has clicked.










share|improve this question
















I have created a 3d object using blender and exported it as .obj file.



I am trying to load that .obj file using OBJloader in threejs. That is a single object with multiple material in it. It is loaded without any issues.



I am trying to track which material the user has clicked in a 3d object. I am using raycasting for this. Since raycasting works only at object level, I am not able to get which specific material user has clicked.







three.js 3d






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 19 at 10:06









James Z

11.1k71935




11.1k71935










asked Jan 19 at 6:43









user1771029user1771029

1114




1114








  • 4





    I've made a PR to make this task easier: github.com/mrdoob/three.js/pull/15613. If it gets merged, you can evaluate intersection.face.materialIndex and then retrieve the correct material from your materials array.

    – Mugen87
    Jan 19 at 11:10














  • 4





    I've made a PR to make this task easier: github.com/mrdoob/three.js/pull/15613. If it gets merged, you can evaluate intersection.face.materialIndex and then retrieve the correct material from your materials array.

    – Mugen87
    Jan 19 at 11:10








4




4





I've made a PR to make this task easier: github.com/mrdoob/three.js/pull/15613. If it gets merged, you can evaluate intersection.face.materialIndex and then retrieve the correct material from your materials array.

– Mugen87
Jan 19 at 11:10





I've made a PR to make this task easier: github.com/mrdoob/three.js/pull/15613. If it gets merged, you can evaluate intersection.face.materialIndex and then retrieve the correct material from your materials array.

– Mugen87
Jan 19 at 11:10












0






active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54264723%2fthreejs-object-with-multiple-material-doesnt-work-with-raycasting%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54264723%2fthreejs-object-with-multiple-material-doesnt-work-with-raycasting%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

Homophylophilia

Updating UILabel text programmatically using a function

Cloud Functions - OpenCV Videocapture Read method fails for larger files from cloud storage