Part of the Khronos Group
OpenGL.org

The Industry's Foundation for High Performance Graphics

from games to virtual reality, mobile phones to supercomputers

Search:

Type: Posts; User: 3B

Page 1 of 3 1 2 3

Search: Search took 0.00 seconds.

  1. Thread: glextrelease.txt ?

    by 3B
    Replies
    0
    Views
    591

    glextrelease.txt ?

    The enumext.spec in the registry says:

    but I don't see that file in the registry anywhere.
  2. Replies
    0
    Views
    540

    .spec file version numbers/dates

    At some point (around 3.2 maybe?), the .spec files stopped having version numbers and 'last updated' dates (they used to be in a passthru: in enumext.spec). Any chance of getting those back in some...
  3. Replies
    165
    Views
    535,414

    Re: Official feedback on OpenGL 3.1 thread

    How does the ARB_compatibility extension work?

    If the extension is supported, a 3.1 context has all the deprecated stuff still there anyway? Or does an application need to explicitly request...
  4. Replies
    43
    Views
    76,426

    Re: GenRenderbuffers bug in 177.89?

    Using 177.89 drivers in gl3 mode, glBindRenderbuffer seems to only accept renderbuffer names which have been returned from glGenFramebuffers instead of those returned from glGenRenderbuffers.

    for...
  5. Replies
    43
    Views
    76,426

    Any gl3 in newer drivers?

    Do newer drivers have any GL3 support?
    I'm trying the 178.13 released yesterday, but not getting WGL_ARB_create_context in the WGL extension string or any other sign of it working, even with it...
  6. Replies
    4
    Views
    1,614

    Which extensions are useful with gl3?

    Trying to narrow down a list of extensions which are still relevant when using a gl3 forward compatible context.

    So far my list is
    ARB_draw_instanced ARB_geometry_shader4 ...
  7. Replies
    43
    Views
    76,426

    Re: VAO bugs?

    ok, http://www.3bb.cc/tmp/vao-exit-crash.zip is a binary of previous program chopped down to just the exiting with vao bound bit:


    #include <stdio.h>
    #include <GL/glfw.h>
    #include "glext.h"
    ...
  8. Replies
    43
    Views
    76,426

    VAO bugs?

    Found 2 possible bugs with the 3.0 VAOs in the 177.89 drivers:

    Main one is that calling glDisableVertexAttribArray(1); with no VAO bound breaks any existing VAOs that had attrib 1 active with a...
  9. Thread: gl3 spec bug

    by 3B
    Replies
    0
    Views
    930

    gl3 spec bug

    in 4.2 WHOLE FRAMEBUFFER OPERATIONS, page 262(page 278 of the pdf)

    ClearBuffer{if ui}v( enum buffer, const T *value );

    lacks a return type.
  10. Thread: OpenGL 3 Updates

    by 3B
    Replies
    1,723
    Views
    16,771,939

    Re: OpenGL 3 Updates

    Now that we have some beta drivers to play with, any ETA on current .spec files? The ones at http://www.opengl.org/registry/ just add enums, no new functions as far as I could tell.

    (or even full...
  11. Replies
    3
    Views
    1,619

    Re: Error in new extension header files

    The new .spec/.h files also seem a bit short on new functions...
  12. Re: 3d texture problem with (unsigned) short data type

    try random #s up to 65535 instead of 255?
  13. Replies
    8
    Views
    589

    Machine readable function/enum specs?

    Is there any canonical set of machine readable info on function signatures, enum values, etc. for OpenGL and extensions?

    Closest I've found so far is the *.spec files from oss.sgi.com , but...
  14. Re: Automatic Texture Coordinate Generation in fragment Program

    in the vertex program, use
    state.texgen[n].eye.{strq}, state.texgen[n].object.{strq}, and the equations in the GL docs under "Generating Texture Coordinates"(2.11.4)

    untested code off the top of...
  15. Replies
    12
    Views
    1,498

    Re: Possible to reflect specular highlights?

    My point was that you get the same results whether the geometry came from a reflection or from independent geometry, and if it's correct for independent geometry, its correct for the reflection case...
  16. Replies
    11
    Views
    911

    Re: fbo, pbo, vbo & render_to_vertex_array

    Yeah, that was what I meant about the GL_ARRAY_BUFFER stuff, but like I said before, it should work either way...

    Tried running your original code, and with GL_RGB32F_ARB in the ReadBuffer call, I...
  17. Replies
    12
    Views
    1,498

    Re: Possible to reflect specular highlights?

    I think you must be getting the angles wrong in your diagrams...either method should give you correct results.

    Think of it this way:
    You have a scene. It is lit correctly.

    Now put a wall with...
  18. Replies
    11
    Views
    911

    Re: fbo, pbo, vbo & render_to_vertex_array

    I meant just do the BufferData() using the VBO instead of the PBO, not dropping PBO completely. Looks like the PBO examples do it the same way you did though, so that should work...
    Only other...
  19. Replies
    11
    Views
    911

    Re: fbo, pbo, vbo & render_to_vertex_array

    Possibly try GL_ARRAY_BUFFER instead of GL_PIXEL_PACK_BUFFER_EXT?
    Also, you might want GL_STREAM_COPY instead of GL_STATIC_DRAW, but that shouldn't make it crash.
  20. Replies
    4
    Views
    561

    Re: GL_REPEAT and interpolation problem

    If I read correctly, you aren't actually doing a texture atlas, so you don't need any complicated math in the shader. Seems like setting GL_CLAMP_TO_EDGE and then using a shader to chop off just the...
  21. Replies
    11
    Views
    1,252

    Re: ARB_fragment_program(from beginners forum)

    try changing fragment program to:
    MOV result.color.rgb,fragment.texcoord[1];
    MOV result.color.a,{1,1,1,1};
    (or set result.texcoord[1].w in the VP)
  22. Replies
    136
    Views
    38,522

    Re: NVIDIA Forceware 75.90 => OpenGL 2.0.0 & fbo

    do 76.41 drivers have working stencil renderbuffers yet? or mipmap generation on cubemaps?
  23. Replies
    136
    Views
    38,522

    Re: NVIDIA Forceware 75.90 => OpenGL 2.0.0 & fbo

    try the arb FP extension: GL_RGBA32F_ARB, GL_RGBA16F_ARB, etc. Those are what I've been using, and they work for me...hmm, looks like those are actually the same value as the ATI extension (and apple...
  24. Replies
    4
    Views
    465

    Re: How to display two value bitmap efficiently?

    Also, unless you have a very unusual monitor, you can't actually display 40,000x1000 pixels at once, so you might consider streaming the data. It would mainly help with the loading part, but breaking...
  25. Replies
    136
    Views
    38,522

    Re: NVIDIA Forceware 75.90 => OpenGL 2.0.0 & fbo

    simple example : (with no error checking, etc. in particular, should check # of valid attachments and draw buffers, currently 4 on my 6800GT, dunno about older cards. Also, verify the framebuffer is...
Results 1 to 25 of 68
Page 1 of 3 1 2 3