Hi,
GLfloat haskell is instance of several number related typeclasses. A
function like 'fromRational' could be used to create a GLfloat from another
number that has a random instance.
L
On May 3, 2012 4:39 AM, "Mark Spezzano"
wrote:
> Hi,
>
> I tried this but now I get another error:
>
> The da
Hi,
I tried this but now I get another error:
The data constructors of `GLfloat' are not all in scope
so you cannot derive an instance for it
In the stand-alone deriving instance for `Random GLfloat'
Mark
On 03/05/2012, at 10:39 AM, Patrick Palka wrote:
> Because GLfloat is simply a
Because GLfloat is simply a newtype wrapper for CFloat, which has a Random
instance, I would do:
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
deriving instance Random GLFloat
On Wed, May 2, 2012 at 6:29 PM, Mark Spezzano
wrote:
> Hi Haskellers,
>
> I'm trying t
Hi Haskellers,
I'm trying to generate a random vertex in OpenGL as follows.
genPosition :: IO (Vertex3 GLfloat)
genPosition = do x <- getStdRandom $ randomR (-1.6,1.6)
y <- getStdRandom $ randomR (-1.0,1.0)
return (Vertex3 x y (-1))
Un
