I haven’t tested the TFloat4×4 at all. So it’s possible that it’s broken. I’ll try to create a unit test for it first. Once we can verify that TFloat4×4 works at all then we can see how to make it do the matrix multiply.

Sorry this stuff is not very well tested. I didn’t think anyone was using it – but I’m glad to see that you are!

Feel free to email me so we can correspond more easily: jaward at adobe dot com

-James

Im trying to use your library for matrix calculations but I cant get any result for now (2 days i’m playing with it…)

Basically, i’d like to multiply 2 matrices but as PBJAS output cannot be a TFloat4×4, i cannot get the result directly.

So I thought using a TFloat4×4 as src1 and TFloat4×4 as src2, then manipulating their values and putting them in a Float4 would do the job but, obviously it doesn’t…

Here are my parameters :

new PBJParam(“_OutCoord”, new Parameter(PBJType.TFloat2, false, new RFloat(0, [PBJChannel.R,PBJChannel.G]))),
new PBJParam(“src1″, new Parameter(PBJType.TFloat4×4, false, new RFloat(1))),
new PBJParam(“src2″, new Parameter(PBJType.TFloat4×4, false, new RFloat(5))),
new PBJParam(“output”, new Parameter(PBJType.TFloat4, true, new RFloat(9, [PBJChannel.R,PBJChannel.G,PBJChannel.B,PBJChannel.A])))

src1 and src2 width and height are 1 (with 16 values for each)
output has a width of 4 because i want to make it a matrix after the pbjas calculations (TFloat4 * 4 = 16 values for my 4X4 matrix)

But every opcode i tried with these values is crashing the player, for ex:

new OpSampleLinear(new RFloat(9,[PBJChannel.R,PBJChannel.G,PBJChannel.B,PBJChannel.A]),new RFloat(0,[PBJChannel.R, PBJChannel.G]), 1)

Here I was expecting to get the values of the first row of src1 in my output but the player crashes without a warning….there is something i dont understand here but no idea what it can be

Could you please give me a tip on how to use 4X4 matrices with your lib ?

Thanks in advance and congrats for this awesome tool, i had some incredible performance improvments with it, i’ll let you know when i’ll finish a project working with pbjas

The picture is the cover for First Steps in Flex and was taken by a friend of mine while we were in the Dolomites in Italy.

-James

Pretty interesting technology! Hey, I just LOVED the wallpaper in the demo (here: http://www.adobe.com/products/flex/media/flexapp ). Is this a personal picture or something from the web? Any way I can get a hold of it? Thanks!