Babylon file format and mesh name

[Tyrahell]

Hi everyone,

 

Thanks to you i managed to load my geometry created a third app :

 

http://www.strains.fr/import_bridge.html

 

At the moment, im dealing with the picking (left shift + left click in the sample above) and get some trouble because my bridge is only composed of a unique mesh named 'Cube' :

{"autoClear":true,"clearColor":[0.41,0.41,0.41],"ambientColor":[0.0,0.0,0.0],"gravity":[0.0000,-9.8100,0.0000],"cameras":[{"name":"Camera","id":"Camera","position":[7.4811,5.3437,-6.5076],"rotation":[0.4615,-0.8149,0.0108],"fov":0.8576,"minZ":0.1000,"maxZ":100.0000,"speed":1.0000,"inertia":0.9000,"checkCollisions":false,"applyGravity":false,"ellipsoid":[0.2000,0.9000,0.2000]}],"activeCamera":"Camera","lights":[{"name":"Lamp","id":"Lamp","type":0.0000,"position":[4.0762,5.9039,1.0055],"intensity":1.0000,"diffuse":[1.0000,1.0000,1.0000],"specular":[1.0000,1.0000,1.0000]}],"materials":[{"name":"1cube.Material","id":"1cube.Material","ambient":[0.8000,0.8000,0.8000],"diffuse":[0.6400,0.6400,0.6400],"specular":[0.5000,0.5000,0.5000],"specularPower":50.0000,"emissive":[0.0000,0.0000,0.0000],"alpha":1.0000,"backFaceCulling":false}],"meshes":[{"name":"Cube","id":"Cube","materialId":"1cube.Material","position":[0.0000,0.0000,0.0000],"rotation":[-0.0000,-0.0000,0.0000],"scaling":[1.0000,1.0000,1.0000],"isVisible":true,"isEnabled":true,"useFlatShading":false,"checkCollisions":false,"billboardMode":0,"receiveShadows":false,"positions":[0.000000,-1.050034,-0.525000,1.000000,-1.050034,-0.525000,1.000000,-1.050034,-0.505189,0.000000,-1.050034,-0.505189,

You can check the totally of my bridge.babylon hand made file there : www.strains.fr/bridge.babylon

 

If you got any idea on how to add multiple "name" to each mesh of my scene, let me know

 

Regards,

 

Tyrahell

[Temechon]

Hey, 

 

You can do it in Blender/3DSmax, by creating submeshes for your cube.

 

Cheers, 

[Tyrahell]

Hi Temechon,

 

As written below, my .babylon file is hand written by a third app (our numerical solver) so i have to find a manual way to identify each submesh inside my meshes named 'cube'.

 

Any tought ?

 

++Tyra

[GameMonetize]

The only way is by number I guess

[Tyrahell]

The only way is by number I guess

 

Hi DK, my picking look like this :

                // Picking		window.addEventListener("click", function (evt) 		{				if (evt.shiftKey)			{				// We try to pick an object, type of BABYLON.Mesh				var pickResult = myScene.pick(evt.clientX, evt.clientY);				if( pickResult.hit )				{					var result = pickResult.pickedMesh.id;					alert(result);				}			}		});

My result when i shift+click on a polygon is to get a Babylon.Mesh structure, but im not interessed by the whole structure, only by the clicked polygon.

If i cant get a name or id by polygon, how can i interact with a polygon to transform it ?

 

Regards,

 

Tyrahell

[GameMonetize]

You can do something like this (This is what I did to get uv of the picked point):

var indices = this.pickedMesh.getIndices();            var uvs = this.pickedMesh.getVerticesData(BABYLON.VertexBuffer.UVKind);            var uv0 = BABYLON.Vector2.FromArray(uvs, indices[this.faceId * 3] * 2);            var uv1 = BABYLON.Vector2.FromArray(uvs, indices[this.faceId * 3 + 1] * 2);            var uv2 = BABYLON.Vector2.FromArray(uvs, indices[this.faceId * 3 + 2] * 2);            uv0 = uv0.scale(this.bu);            uv1 = uv1.scale(this.bv);            uv2 = uv2.scale(1.0 - this.bu - this.bv);            return new BABYLON.Vector2(uv0.x + uv1.x + uv2.x, uv0.y + uv1.y + uv2.y);

[Tyrahell]

Thanks a lot, now i have directly access to my scene properties through picking and using a .babylon file.

Here is the code sample to flip my scene in real time :

// Picking		window.addEventListener("click", function (evt) 		{				if (evt.shiftKey)			{				// We try to pick an object, type of BABYLON.Mesh				var pickResult = myScene.pick(evt.clientX, evt.clientY);				if( pickResult.hit )				{						var indices = pickResult.pickedMesh.getIndices();						var VerticesPosition = pickResult.pickedMesh.getVerticesData(BABYLON.VertexBuffer.PositionKind);					var nbPosition = VerticesPosition.length / 3;										var arrayPosition = [];										for ( i = 0; i < nbPosition; i++ ) 					{						var myX = VerticesPosition[ i*3 + 0 ];						var myY = VerticesPosition[ i*3 + 1 ] * -1;						var myZ = VerticesPosition[ i*3 + 2 ];												arrayPosition.push( myX );						arrayPosition.push( myY );						arrayPosition.push( myZ );					}										pickResult.pickedMesh.setVerticesData( BABYLON.VertexBuffer.PositionKind, arrayPosition, false);				}			}		});

Problem solved once more thanks to you DK, see you all in september !

 

++Tyra