Author Topic: EDA075 - Mobile Graphics - Assignment 2  (Read 8354 times)

Offline MikeD

  • Full Member
  • ***
  • Posts: 213
EDA075 - Mobile Graphics - Assignment 2
« on: 2009-11-10 09:17:37 »
A separate topic for questions about Assignment 2.

Offline MikeD

  • Full Member
  • ***
  • Posts: 213
Re: EDA075 - Mobile Graphics - Assignment 2
« Reply #1 on: 2009-11-13 15:27:44 »

Offline michaelg

  • Newbie
  • *
  • Posts: 8
Re: EDA075 - Mobile Graphics - Assignment 2
« Reply #2 on: 2009-11-13 15:57:49 »
Hej!

Are we supposed to used the code developed for problem i in problem i+1?
What we mean is: are we supposed to use fixed point math in problem 3?

Offline MrAndersson

  • Full Member
  • ***
  • Posts: 142
Re: EDA075 - Mobile Graphics - Assignment 2
« Reply #3 on: 2009-11-14 15:08:23 »
It's fine if you use floating point math for the third problem, but then you have to explain fixed point division to me on Wednesday :)

Offline dt06jo6

  • Newbie
  • *
  • Posts: 7
Re: EDA075 - Mobile Graphics - Assignment 2
« Reply #4 on: 2009-11-16 14:15:23 »
"[...] you need to be able to reduce texture bandwidth [...]"

In the statistics printout, which value is this? Total bandwith?

Offline MrAndersson

  • Full Member
  • ***
  • Posts: 142
Re: EDA075 - Mobile Graphics - Assignment 2
« Reply #5 on: 2009-11-17 09:46:28 »
A common issue with the problem 2 is that you forget to take the bounding box of the triangle in to account. Set a break point in the "inside" function and see if it is ever hit. If not, I bet that your bounding box is weird.

Offline aguihau

  • Newbie
  • *
  • Posts: 1
Re: EDA075 - Mobile Graphics - Assignment 2
« Reply #6 on: 2009-11-17 17:53:24 »
Hello,

We have a little interrogation concerning the texture bandwith usage.
It is initially of approximately 7.5 MB on the computer we used. Should we reduce it to 1.9 MB or to 13.5% of the initial amount, that is around 1.0 MB ?

Thanks !

Offline MrAndersson

  • Full Member
  • ***
  • Posts: 142
Re: EDA075 - Mobile Graphics - Assignment 2
« Reply #7 on: 2009-11-18 00:41:12 »
The bandwidth is not supposed to vary between machines. Have you changed the resolution?

Offline michaelg

  • Newbie
  • *
  • Posts: 8
Re: EDA075 - Mobile Graphics - Assignment 2
« Reply #8 on: 2009-11-18 12:51:59 »
No, but we found out what the problem was: We took the code which we have modified for Problem I and II. If we take a unmodified version of the code (freshly downloaded from the website) then we get the expected values.

Offline Spannen

  • Newbie
  • *
  • Posts: 18
  • Gender: Male
Re: EDA075 - Mobile Graphics - Assignment 2
« Reply #9 on: 2009-11-29 22:13:10 »
This might not be the right thread, but anyway:
Is it possible to get hold of the slides from Jacob Ströms lecture on texture compression? Would be nice to have for project #2...
A million points of light

 

joke