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    Re: Official feedback on OpenGL 4.2 thread

    thats nice to know. Not good though if you are wanting to try out things on the mac. I wonder if OpenGL ES 2.0 has more functionality(shader) on the iOS side than the desktop drivers.
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    Re: Official feedback on OpenGL 4.2 thread

    so Nvidia has an implmentation NOW. AMD will have one soon. Now let's guess on how long it will take Apple to work with both of them to incorporate changes onto their systems.
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    Re: OpenGL basecode in XCode/Snow Leopard

    @Bruce - it seems that I have some things working how i want in my basecode. I have subclassed NSOpenGLView and am drawing a simple triangle in Ortho mode(pixel space) but in the reshape function the...
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    Re: OpenGL basecode in XCode/Snow Leopard

    thanks for the help - that worked and now I have a rotating red triangle! just been looking at the code too long. i have heard that integrating the Interface Builder for OpenGL can be aggravating...
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    OpenGL basecode in XCode/Snow Leopard

    I have Mac 10.6 and XCode 3.2.6 and I have yet to find any tutorial on getting the base OpenGL code to work properly via XCode. Do i go into interface builder and drag an NSOpenGL view onto my main...
  6. How do i get the current matrix information?

    I am wanted to use opengl libraries to send it my own 4x4 matrix, have opengl perform a rotation and then retrieve the resulting matrix from that operation for use back into my main program.

    is...
  7. Re: Coming back to OpenGL finally after a long hiatus

    Zbuffer,

    thanks for the input. i will look into those tutorials and examples. I guess i should have added that i have no intention of writing any intial code on windows at all, other than to...
  8. Coming back to OpenGL finally after a long hiatus

    I am back. After job changes, life changes and other things i can now come back and do what i started to do about 3 or 4 years ago.

    Therefore this post here will require comments from experience...
  9. Re: setting up OpenGL via terminal on MacOSx 10.5

    yes it is weird that although i have gl.h and glu.h in /usr/X11/include/GL, in my makefile i have -I./usr/X11/include/.

    then in my main program i have #include <GL/gl.h> it says that the folder...
  10. Re: setting up OpenGL via terminal on MacOSx 10.5

    well i got it to work. the library for glut that you include comes from the framework. here is a copy of my Makefile.

    i hope that this will be useful for someone.

    INC = -I./usr/include/...
  11. setting up OpenGL via terminal on MacOSx 10.5

    hey all i just got a new macbook pro, 10.5 and would like to port of my linux c++ opengl applications over to the mac. just to make things simple port just an opengl application that just opens a...
  12. Re: Time to upgrade GPU - need suggestions please...

    no the 6800 card i have is on PCI-x16 slot so that is a good thing..no AGP... but the PSU does say 350W with the numbers in the first post.

    could i get away with the 9600GT?

    i was on those...
  13. Time to upgrade GPU - need suggestions please...

    well its time after 4 or 5 years now to get a new GPU. theres just some thing i need it for, including but not limited to games.

    i currently have a Geforce 6800, i am not sure what the power...
  14. Finding Area between intersection points(polygon)

    Image

    there is a link to my problem, something i drew up real quick. i am trying to find an area of a polygon inside a rectangle by way to getting the intersecting points and throwing out all the...
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    Re: Finding the area of a polygon

    It also state that the formula work if the polygon is not overlapping.
    http://img409.imageshack.us/img409/7538/polygonareazr5.jpg
    Notice that your polygon have a double point (A = E)
    BTW The area...
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    Finding the area of a polygon

    i have a polygon with a set of known vertices but i keep getting negative numbers for my areas. i was wondering what i am doing wrong?

    i looked up the formula here. where it talks about in the...
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    Re: Need help on getting a GPU for mobo...

    hi Iilan - thanks for the reply. the only thing that i can say is that the mobo has 2 slots on the board...both with 2 grooves and that is it. i wish i knew how or why but that is the case. i wish i...
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    Re: Need help on getting a GPU for mobo...

    i actually have ran into a setback. either i am seeing things or that mobo spec is wrong.

    i got this off the manufacturers website according to them:

    Motherboard, SiS 650 chipset, Socket478,...
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    Need help on getting a GPU for mobo...

    hi all. i came upon a machine that i am turning into a linux box. the motherboard spec is here

    the original machine came with a 20GB HD and 256MB Ram. i now have bought and received 2 of these ...
  20. Re: Finding a point (x,y) between two other points.

    ok thanks! sorry for the confusion. ive worked it out onpaper and it seems to work :)
  21. Re: Finding a point (x,y) between two other points.

    ok so just compute -> inv_slope = (B.x - A.x) / (B.y - A.y);

    this way whether finding x or y yes?
  22. Re: Finding a point (x,y) between two other points.

    thanks for the quick response. in contrast, if you know the x value and you need to get the Y value it would be:



    inv_slope = (B.y - A.y) / (B.x - A.x);
    delta_x = C.x - A.x;
    delta_y = delta_x...
  23. Finding a point (x,y) between two other points.

    i would like to find out what is the general formula of finding a point in between(and not necessarily in the middle) of 2 other random points.

    i am using this to test for 2D line intersections...
  24. Re: Understanding and Implementing proper projections

    well they don't, everything is swapped along the y-axis and inverted.



    i had tried gluProject at first and used win but figured out that i needed to use gluUnProject(i always get confused...
  25. Re: Understanding and Implementing proper projections

    well my problem is, as per the image link that i have there, the data is drawn and must be drawn with the glOrtho of bottom 30.1 and top 30.7 otherwise if you swap those they would be drawn upside...
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