xeolabs’s Activity (RSS)

Hi

I create json objects with pitch->yaw->translation->geometry and past it at the scene,
each of my geometries gets its own rotation and translation, so I can ...

So we can specify a uniform degree of fog, not related to depth. Still use the front and back cutoff planes though, that would be cool.

Add a cylinder and cone node type like the cube and sphere.

It would be nice to generate a cone by supplying height, radius and similarly for a cylinder with de...

Fix pull request : https://github.com/xeolabs/scenejs/pull/29

Turns out that the quaternion was normalized using a vector3 len, and not a vector4.
Quaternion no...

The quaternion getRotation (accessible by SceneJS.withNode("myRotation").get("rotation")).
it basically returns {x: NaN, y: NaN, z: NaN, angle: NaN} or rubbish ...

Pull request that corrects this bug :
https://github.com/xeolabs/scenejs/pull/28

The eachParent method does not work as it should.
It "jumps" over the first parent.

Consider this tree
one
|-two |-three

|-four

Calling SceneJS.withNode("four...

Throw exception when two nodes have the same ID.

Ensure that unrolled DAE parser does no create duplicate node IDs.

In Subgraph Config on Pick Demo we have a row of teapots, each with their own renderer node.

Select teapot 8 and enable blending, all the teapots are blended.

S...

From Rehno:

In my game the canvas element is setup up with css to automatically resize with the screen. However, scenejs has some slightly strange behaviour. If...

Optimise Events Between Modules

Currently SceneJS is designed a bit defensively in terms of extensibility. When a geometry node is rendered, it

1. fires an event ...

It's possible to issue a SceneJS.withNode("my-scene").pick(..) right in the middle of a scene traversal, thereby putting the scene graph into PICKING_MODE in th...

Hacked - disabled sorting on program. Will be extending this module in future, hope to rework it anyway.

Online IDE has been decommissioned for now

Now done on NodeJS by the Asset Service

Done by Rehno, ta muchly

Asset service now does this

This can be handled really nicely by creating a utility in the new Utilities API: http://scenejs.wikispaces.com/SceneJS.utils

Render a frame with visible geometries, then render a second frame with all geometries culled (ie. out of view frustum) and the image from the previous frame re...

"The discard keyword can only be used in fragment shaders. It causes the termination of the shader for the current fragment without writing to the frame buffer,...

GL state sorting in the rendering module does not appear to be un-binding textures correctly.

The symptoms are that textures flash on and on off among the geome...

Resources

• http://pyopengl.sourceforge.net/documentation/manual/gluUnProject.3...

In the Sirikata fork of GLGE - a "discard" keyword in GLSL, used for alpha transparency by the looks of it:

http://github.com/sirikata/GLGE/commit/67c1ae074419...

Right, so, I did a quick dib at this and implemented alpha mapping I guess.
See the screenshot (I guess the blackish lines around the transparent edges
are "z-f...

If you can, please be sure to support varying levels of transparency. Thanks! :)

Allow alpha transparency in texture maps

Resources

• http://osdir.com/ml/python.opengl.user/2005-05/msg00001.html

myQuaternionNode.add("Rotation", {x: xval, y: yval, z: zval, angle:
indegrees})

Is not compatible with

SceneJS.withNode("myQuaternionNode").get("Rotation")

Retu...

  nodes: [
    {
       type: "translate",
       z : -10.0,
       nodes: [
         {
             type: "teapot",
             id: "teapot1"
         }
    ...

Various things like texture loads are tracked in a table of asynch processes, which gives us a central place to queue them, monitor, kill them etc.

They are bur...

For example, to access the ID of a node we need to do this:

SceneJS.withNode("bla").get("ID");

Possible solutions:

• ensure that properties are case-insensitiv...

Like so:

SceneJS.createNode({
    type: "node",
    id: "seymour",
    data: {
       name: "Seymour Cray",
       company: "NCR"
    }
});

var data = SceneJ...

Instance calls _renderWithEvents on child node:

this._symbol._renderWithEvents(this._createTargetTraversalContext(traversalContext, this._symbol));