Re: Rayshade render

[Daniele C. <dca...@in...>]

I tried to implement this solution but it don't work well.
(I set anUnsignedInt like TQ3Uns32 )
The create colors aren't correct.
You can see
As it would have to be
http://www.interstudio.net/quesa/init.jpg
as it is
http://www.interstudio.net/quesa/res.jpg
I use imac intel.

I don't know why  doesn't work.
It isn't a good solution to use #define /QUESA_HOST_IS_BIG_ENDIAN
/because there are mac with  intel and powerpc processor.
How I know  in runtime if computer have an intel or powerpc processor?


Have you Some ideas?
//
Roger Holmes ha scritto:
> On the other hand, if we define
>
> union longAndFourChars
> 	{
> 	char fourChars [ 4 ] ;
> 	unsigned long int anUnsignedInt ;
> 	}
>
> longAndFourChars  pixel ;
>
> then
> 	
> pixel. fourChars [ 0 ] = correct ( rgbaPixels [ i ] [ 3 ] ) ;// Alpha
> pixel. fourChars [ 1 ] = correct ( rgbaPixels [ i ] [ 2 ] ) ;
> pixel. fourChars [ 2 ] = correct ( rgbaPixels [ i ] [ 1 ] ) ;
> pixel. fourChars [ 3 ] = correct ( rgbaPixels [ i ]  [0 ] ) ;
>
> * ( ( unsigned int* ) rowAddr ) = pixel. anUnsignedInt ;
>
>
>
> Then won't that work on either endian machine?
>
> Roger.
>
>
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