Search:

Type: Posts; User: bentlegen

Page 1 of 2 1 2

Search: Search took 0.00 seconds.

  1. Replies
    2
    Views
    5,738

    Re: Anti Aliasing

    Are you specifying alpha for your line color(s)? A screenshot would be helpful.
  2. Replies
    2
    Views
    4,936

    Re: please..read this..and help me...-0-

    OpenGL|ES 1.0 Implementation for Linux

    - Ben
  3. Replies
    5
    Views
    6,632

    Re: any suggestion for learning materials?

    I should add that if you're solely interested in learning OpenGL|ES and not necessarily development for mobile devices, you can also build OpenGL|ES applications for Windows using Hybrid's Win32...
  4. Replies
    1
    Views
    4,708

    Re: stencil test in OES

    Take a look at this tutorial:

    http://www.zeuscmd.com/tutorials/opengles/25-Reflections.php
  5. Replies
    7
    Views
    9,921

    Re: Hardware Acceleration

    In OpenGL|ES, the internal texture format must match the format of the data sent to glTexImage2D. Could that be your problem?

    - ben
  6. Replies
    3
    Views
    6,341

    Re: 2 Questions???

    Regarding #1: You're first going to have to tell us what ES implementation you're using. But here's a few ideas, see if they help.

    a) Try GL_NEAREST texture filtering
    b) Try setting...
  7. Replies
    3
    Views
    7,258

    Re: gluLookAt() in OpenGL ES ?

    I think I should raise the point that UG is not a part of OpenGL|ES specification. It is a completely undocumented (but handy) ES-related library that is packaged with a few implementations, but not...
  8. Replies
    4
    Views
    7,674

    Re: Texture Objects and texture management

    Once you've called glTexImage2D, you don't need to hold on to your pointer. The driver now has a copy of the image data, assuming there was memory available. If not, you should check glGetError for...
  9. Replies
    2
    Views
    5,070

    Re: alpha blend with an extra alpha.

    Set flat color shading and call glColor4f(1.0f, 1.0f, 1.0f, a2). This assumes you're blending with the frame buffer using glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA). Should blend according to...
  10. Replies
    4
    Views
    7,753

    Re: The Best 3D Model Format For OpenGL ES

    I don't believe any model format is any more "optimized" for rendering; really, once you've loaded the data from the file, it's all the same. The only exception being if a file format is...
  11. Replies
    1
    Views
    4,386

    Re: How to Get A Title Bar in Gerbera?

    I don't believe Gerbera is actually responsible for window management, apart from associating the window/display with a rendering context. Likely, this is some PocketPC/Windows mobile function which...
  12. Replies
    12
    Views
    13,178

    Re: Help needed(Texture Mapping)

    Just a guess, but it's likely that you're not specifying the proper height/width of the texture to glTexImage2D, and that the few colors that are getting through are being clamped throughout the rest...
  13. Replies
    12
    Views
    13,178

    Re: Help needed(Texture Mapping)

    I should add that those ports use UG and therefore likely only work with the Khronos Linux and Vincent implementations.

    You might want to look at regular OpenGL [texture mapping] tutorials. The...
  14. Replies
    12
    Views
    13,178

    Re: Help needed(Texture Mapping)

    Gautam converted a bunch of NeHe OpenGL tutorials to OpenGL|ES a few months ago.

    Take a look at this thread.

    - ben
  15. Replies
    4
    Views
    12,358

    Re: How to install OpenGL ES 1.0 on linux ?

    Here you go: Link

    Scroll to Step 4.

    - ben

    [ December 21, 2004: Message edited by: bentlegen ]
  16. Replies
    1
    Views
    4,323

    Re: glIsTexture ?

    Are you sure you're using Hybrid's 1.1 implementation? glIsTexture wasn't specified in 1.0.

    - ben
  17. Replies
    1
    Views
    4,129

    Re: help a newbie get started

    Maybe this will help:

    http://www.hybrid.fi/main/download/opengl_es.php

    - ben

    [ December 16, 2004: Message edited by: bentlegen ]
  18. Replies
    4
    Views
    12,358

    Re: How to install OpenGL ES 1.0 on linux ?

    Someone can correct me if I'm wrong, but I believe the Khronos implementation is more or less a wrapper for some existing OpenGL driver on your system, i.e. either Mesa3d (software) or ATI/nVidia...
  19. Replies
    2
    Views
    5,384

    Re: What about glGetFloat?

    OpenGL ES 1.1 supports glGetFloat with the parameter GL_MODELVIEW_MATRIX.

    - ben
  20. Replies
    2
    Views
    5,081

    Re: question about eglGetConfigs

    The list returned by eglChooseConfig is sorted from best configuration to worst configuration, based on the requested attributes you've sent to the function.

    - ben
  21. Replies
    1
    Views
    5,481

    Re: No Quads, Polygone ?

    2 triangles can be used to draw a quad. Just make sure they share the same 4 vertices and you're set.

    - Ben
  22. Replies
    1
    Views
    4,185

    Re: Sourecs for Functions ?

    I don't believe UG is in any way a part of the OpenGL|ES specification - rather, it was just a quick utility thrown together to demonstrate some common OpenGL Red Book samples.

    As far as I can...
  23. Replies
    1
    Views
    4,631

    Re: Fonts in opengl es ?

    There's no reason why you couldn't have bitmapped fonts in OpenGL|ES. Although you might want to consider a different file format if memory constraints are an issue on the platform you're developnig...
  24. Replies
    4
    Views
    7,426

    Re: Nonsquare texturemaps?

    Furthermore, just because the texture file dimensions need to be powers of two, doesn't mean you need to use all that space.

    i.e. You could fill a 256 x 256 texture with some 167x233 image, and...
  25. Replies
    2
    Views
    4,815

    Re: Hybrid Implementation ... What's wrong?

    Thanks for the hand. Now don't I look silly ...

    - Ben
Results 1 to 25 of 35
Page 1 of 2 1 2