I think the color values are values between 0 (rgb = 0) and 1 (rgb = 255). And, if i'm reading your code correctly, the 'red', 'green' and 'blue' values in your code-example have values between 0 and 255 (in fixed format: 0.0, 1.0, 2.0 --> 255.0). http://www.khronos.org/opengles/documentation/opengles1_0/html/glColor.html
Try this as your last statement: surface.glColor4x(red/255, green/255, blue/255) On May 18, 8:53 am, "Alistair." <alistair.rutherf...@googlemail.com> wrote: > Anyone used glColor4x much? > > I am passing colours into a line draw rtn in the usual format '4 > bytes: alpha, red, green, blue.' > > my call to to set the colour attempts to modify the RRGGBB parts into > fixed format values. > > int red = (color&0x00FF0000); > int green = (color&0x0000FF00)<<8; > int blue = (color&0x000000FF)<<16; > > surface.glColor4x(red, green, blue, 0); > > I am getting screwy colours from this. I have searched but there > aren't many examples of this call kicking around and used in this way. > I am obviously doing something dumb. Do I have to format the rgb > values as percentages somehow? > > 'surface' is defined as GL10 btw. > > Al. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
