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Found 5 results

  1. I have a complex modular character. The character has a parent (Anchor) mesh and many child meshes. I want to target FollowCamera on one of the child meshes (Head). When I assign Head to FollowCamera.lockedTarget the behavior is not desired. The camera points at coordinates that match the Anchor element. The camera appears to follow the local position of Head and not the expected world position. Check this play ground http://www.babylonjs-playground.com/#ZXP4M#11
  2. Good day to all! I have a question on Phaser's world-to-screen transformations, and I've googled almost nothing on it Is there a way to transform a sprite's world coordinates into the screen space (and visa versa)? It is a very useful feature and I can't beleave nobody still interested in it! I found poor documented Sprite.worldTransform.tx, Sprite.worldTransform.ty,but I'm not sure these fields always work properly (to be honest, I am sure they don't). Thank you!
  3. Is there a way to define the x/y = 0/0 Point in Phaser? I could not find anything on the forum / docu. So everything is aligned from 0/0 - I want to set a padding of "300" around the whole game. (example) So that the camera can freely move around. The game itself is centered. But there are also renderable object ins space like (-2590, 30) Anyway of doing that? I tried to set negative world bounds and to resize the world. It does nothing at all.
  4. I'm a JS developer using Babylon.js for the first time, and right now I'm just trying develop an understanding of what is happening under the hood. I've been programming forever, but have limited 3D experience, so Babylon.js looks like a perfect learning opportunity. I put together a simple program that takes a mesh, finds the screen coordinates of each of its vertices, and overlays triangles on a canvas on top of Babylon.js's renderCanvas. I'm getting some strange results, though. Most of the vertices are right where they should be, but others are completely wrong. When I do this with a cube, all the verticies look right, but if I open up the vertices array, what I'm seeing on-screen doesn't match the data. Screenshot: http://i.imgur.com/POtcnBr.png It's a bit simpler with a plane. All four vertices make a square using only X and Y, which is exactly what I would expect. For some reason when I run my program, the scene coordinates for vertices 0 and 1 end up floating in space, while 2 and 3 are right where they should be. Screenshot: http://i.imgur.com/s4e0HlH.png Not sure if it helps, but it gets even weirder with a sphere. Screenshot: http://i.imgur.com/pQU9yXg.png I guarantee I'm just missing something simple, probably in the getScreenCoords function, but so far I haven't had any luck. Am I just misusing the indices array? It seems that each number in the indices array corresponds to a specific vertex. I have a feeling that's what is failing, but so far I haven't been able to nail it down. Here's the function that does the work: engine.beginFrame = function() { box.rotation.y += 0.005; box.rotation.x += 0.003; ctx.clearRect(0, 0, drawCanvas.width, drawCanvas.height); ctx.fillStyle = 'rgba(255, 43, 0, 0.25)'; ctx.strokeStyle = 'black'; var vertexCoords = []; var vertices = box.getVerticesData(BABYLON.VertexBuffer.PositionKind); var indices = box.getIndices(); for (var i=0, len=indices.length; i<len; i+=3) { for (var v=0; v<3; v++) { var index = indices[i+v]; if(!vertexCoords[index]) { vertexCoords[index] = getScreenCoords(BABYLON.Vector3.FromArray(vertices, index), box); ctx.fillRect(vertexCoords[index].x-4, vertexCoords[index].y-4, 8, 8); } } ctx.beginPath(); ctx.moveTo(vertexCoords[indices[i+2]].x, vertexCoords[indices[i+2]].y); ctx.lineTo(vertexCoords[indices[i+0]].x, vertexCoords[indices[i+0]].y); ctx.lineTo(vertexCoords[indices[i+1]].x, vertexCoords[indices[i+1]].y); ctx.lineTo(vertexCoords[indices[i+2]].x, vertexCoords[indices[i+2]].y); ctx.stroke(); ctx.fill(); ctx.closePath(); } }; var getScreenCoords = function(vertex, mesh) { var coords = BABYLON.Vector3.Project( BABYLON.Vector3.TransformCoordinates(vertex, mesh.getWorldMatrix()), BABYLON.Matrix.Identity(), scene.getTransformMatrix(), camera.viewport.toGlobal(engine) ); return coords; };
  5. Hi, so I'm new to Phaser and I've been trying to make a little game, I want the movement of the player something like the tank game, with the camera following except instead of using the arrows I'd like to use the touch/mouse input. The input coordinates I'm getting back are relative to the canvas is there anyway to get this relative to the world instead. Any help would be brilliant, I've tried a few different things but I can't seem to find a way around or any examples or existing games that do this. Also, what is the purpose of the game.camera.deadzone in the tank game?