Add float32 functionality.

[skelterjohn]

Add float32 functionality.

[skelterjohn]

I think that, if you're working with opengl, it'd be better to use a matrix lib written specifically with opengl in mind. That is, only 3x3 or 4x4 matrices, backed by float32s. I know that at least one package like this exists, but I'm having a lot of trouble tracking it down.

I'm not going to built float32 support into go.matrix, but it'd be straightforward and fast to write your own function that, for instance, took a DenseMatrix and turned it into a row-major []float32.

[Nvveen]

Although I think the overhead for such a conversion is too big for OpenGL requirements, I think I agree go.matrix might be a bit much for the user case scenario's OpenGL development entails.

[skelterjohn]

Right. For typical opengl stuff you need only the basic matrix operations -
scale, add, multiply. These things will be super fast if you are only
dealing with 4x4 matrices and you can hard-code everything. For trickier
things that go.matrix can offer, like the various decompositions, the time
spent doing the decomp will overwhelm the time spent converting it between
formats.

On Tue, Jan 29, 2013 at 10:47 AM, Neal van Veen [email protected]:

Although I think the overhead for such a conversion is too big for OpenGL
requirements, I think I agree go.matrix might be a bit much for the user
case scenario's OpenGL development entails.

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