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Type: Posts; User: krol

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  1. Replies
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    Re: ati and shadow texture lockups

    Hi all

    It seems I have similar problem. In my shader, first texture stage is reserved for base map, second for normal map and finally third one for shadow map. Validation fails with already...
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    getting texture format

    Hi All

    1) How to query or enumerate a list of supported internal texture formats ??

    2) Is there anywhere in net reference manual for ogl 1.5 (better than ogl 1.5 spec from opengl.org)??
    ...
  3. Thread: color format

    by krol
    Replies
    6
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    929

    Re: color format

    we missunderstood - I have color in d3d format which means ARGB and I want to use this color for Opengl vertices - but opengl uses RGBA so :

    I have color in format

    chanel |alpha|red |green|blue...
  4. Thread: color format

    by krol
    Replies
    6
    Views
    929

    color format

    Helo everyone

    I'm using direct3d vertex format where color is 32 bits integer (ARGB). I want to redirect vertices stream to OGL renderer but I have problem with color - is it possible to use ARGB...
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    Re: Multitexturing & alpha blending

    Thanks. I watched this post and that is the effect I desire, but author uses NV, ARB and ATI extensions - is there any simplification ??
  6. Replies
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    Multitexturing & alpha blending

    hello

    Here is the problem: I have two textures:

    texture 1 (RGB) and texture 2 (RGBA). I want to mix these textures ( GL_ARB_multitexture ) in particular way.

    1) I want to obtain effect where...
  7. Thread: GLSlang tutorial

    by krol
    Replies
    4
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    526

    GLSlang tutorial

    Hello

    I have just read ARB_fragment_program specification and I have noticed that author using GLslang samples - where can I find some usefull info about GLSlang (compilers, tutorials, examples)??...
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    start with glslang

    Hello

    I just read glslang specification and I'm wondering where can I find some demos of glslang codes and any other usefull info about it.

    best regards
  9. Thread: ARB Specification

    by krol
    Replies
    1
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    407

    ARB Specification

    Hello

    I'm looking for glGenProgramsARB, glBindProgramARB or glProgramStringARB. Can anybody tell me where to find it??

    best regards
  10. Replies
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    Re: ARB_fragment_program not supported

    thanks.
  11. Replies
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    429

    ARB_fragment_program not supported

    Hello everyone

    I have Asus v8440 Delux (geforce 4 Ti 4400). I run some program and receive message "ARB_fragment_program not supported". Is it true or do I need some special drivers??

    best...
  12. Replies
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    Re: procedural texture

    Thank you!
  13. Replies
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    501

    Re: procedural texture

    Ok-thanks, but is there any tutorial with procedural textures and ARB_fragment_program?

    best regards
  14. Replies
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    501

    procedural texture

    Hello

    I'm looking for some tutorial with procedural texturing supported by ARB_vertex_program or NV_vertex_program. Thanks.

    best regards
  15. Replies
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    Re: vertex arrays and light calculations

    Hello again

    These solutions don't seem to be effective enough. Is there any algorithm for correction of reverced faces??

    best regards
    Marcin
  16. Replies
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    Re: vertex arrays and light calculations

    there are two solutions for your problem:

    1.duplicate your vertices so, that every triangle has it's unique vertex. no shared vertices at all.(as i said ineffective)

    2. render your object in...
  17. Replies
    5
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    491

    vertex arrays and light calculations

    Hello everybody

    I have some problems with lights calculation when program renders by glVertexPointer and glDrawElements. My model has few polygons with reversed face that's why I use...
  18. Replies
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    244

    antialiased lines and hp-ux

    Hello everyone

    I've got problem with antialiased lines thicker than 1.0. When I modify line's width over 1.0 antialiasing stops working corectly. Do you know what could be reason of it??

    best...
  19. Replies
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    Re: magnifying glass effect

    Hi

    Thanks for answer. This second way is quite interesting. I will try.

    Best regards
    Marcin
  20. Replies
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    1,473

    magnifying glass effect

    Hello

    Can anybody tell me how to obtain magnifying glass effect?? I'm thinking about using glReadPixels() and gl PixelZoom() but maybe there is a better way or some example.

    best regards...
  21. Replies
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    Re: lighting with texture 3d

    Hi

    Thanks for answer. It has helped.

    best regards
    Marcin
  22. Replies
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    5,785

    Re: lighting with texture 3d

    jak milo - polski akcent!! Pracuje na SGI i mam wsparcie w postaci GL_TEXTURE_3D_EXT. Tekstura nakladana jest prawidlowo niestety niknie cien - nie moge znalezc przyczyny. Swiatlo jest wlaczone....
  23. Replies
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    5,785

    lighting with texture 3d

    Hello everyone

    I have the following problem: I'm drawing a simple cube. All lighting setings are appropriate (shading is corect) but when I enable texturing shade disappears!! Does anyone know...
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    Re: openGL 1.3 for Indygo 2

    thanks
  25. Replies
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    Re: openGL 1.3 for Indygo 2

    Thanks for answer. I have to use glTexImage3D routine which is available since openGL 1.2 !! I have watched my Indygo extensions but there was nothing like texture 3D.

    best regards
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