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About yasmin_bd

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  1. I tried to figure out error using the following:   ILenum Error; while ((Error = ilGetError()) != IL_NO_ERROR) {        printf("%d: %s/n", Error, iluErrorString(Error)); }   It prints as follows:   "1291: invalid extension/n1290: could not open file/n"   I placed the image file in right directory. What does the eror mean?  
  2. i can't figure out any error, with download, two version of dll, lib come, one in unicode folder, i m not sure whether there is any relation with that.
  3. I downloaded the 32-bit libraries. The program compiles, but texture is not displayed. I don't know what an be the error. Please provide some suggestion.
  4. So you suggest me to download DevIL-SDK-x86-1.7.8.zip ?   The one already installed, I tried to compile using x64 platform, but It didn't compile either. Could you tell me why?
  5. yes, i am trying to compile in debug mode on Win32 platform.
  6. Hi,    I am having the following errors while compiling devil with MS Visual Studio 2010 in my windows 7 machine.     In Linker->Additional dependencies , I put the following:DevIL.lib;ILU.lib; ILUT.lib;   I have added include and lib directories under VC++ directories.  Then I put the dll files under System32 and SysWOW64 directories.   I don't under what else can be the linking problem.  Do I need to do anything else?  I downloaded the following from the website: DevIL-SDK-x64-1.7.8     /****************************************************************************************************************************/ Generating Code... 1>main.obj : error LNK2019: unresolved external symbol__imp__ilutGLLoadImage@4 referenced in function "void __cdeclInitTextures(void)" (?InitTextures@@YAXXZ) 1>main.obj : error LNK2019: unresolved external symbol __imp__ilutRenderer@4 referenced in function _main 1>main.obj : error LNK2019: unresolved external symbol __imp__iluInit@0 referenced in function _main 1>main.obj : error LNK2019: unresolved external symbol __imp__ilInit@0 referenced in function _main 1>C:\Users\MYG741\Documents\Visual Studio 2010\Projects\Textures\Debug\Textures.exe : fatal error LNK1120: 4 unresolved externals   1>Build FAILED. 1>1>Time Elapsed 00:00:01.26 ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== /********************************************************************************************************************************************/                 
  7. yasmin_bd

    Question on texture

    Thank you very much for the reply.I have never done any subject like image processing and I have very little knowledge about it. I need some more clarification.   Can I floodfill using code? Please explain a bit the algorithm. Suppose I have managed to extract the image in the following format: 2 bit representation of white == object black == background.Now how to proceed to step 2. i understand I need check the eight neighbours of white pixel to identify, but  how can i check the neighbours of pixel  in the code? Please clarify it by some simple line of code. I don't need solid object, I just need the boundary, a white pixel may have more than one black boundary pixel. How to process this case?  Thanks again in advance.
  8. yasmin_bd

    Question on texture

    Thank you very much for taking time to answer my question.   I think I failed to make you understand properly due to my poor knowledge in this field.   I get the image. Now I need to extract boundaries from the image in terms of ( x, y, z) coordinates. The final result should be the boundary connected with a set of vertices. Yes,I  need to convert the image boundary to a polygon connected by a set of small straight lines lying on xz plane.   I don't have idea how to proceed. I wanted to proceed as follows. If there is any better suggestion, please let me know. I would like to paste the image on some rectangle [(-1,0, -1) to (1,0, 1)] on xz plane. Then I was looking for some technique which help me extract the (x, z) coordinate for a pixel value in the boundary of the image. I don't know how to do this part. Then gradually connecting the coordinates to form the planar polygon. But I don't know how to proceed. How to correspond each pixel to (x, z) coordinate. Then form the edges of the polygon.   I need some suggestion.
  9. yasmin_bd

    A simple question on rotation

    I understand how to convert from axis angle to matrix from wiki.http://en.wikipedia.org/wiki/Rotation_matrix  
  10. yasmin_bd

    A simple question on rotation

    Could you tell me how to find out the corresponding rotation matrix?
  11. I need  some help about extracting vertices from an image. I have extracted the boundaries of an image from adobe photoshop as shown in the figure. I pasted it on a XZ plane ABCD as texture. Now I need to extract vertices ( for example, v1, v2 etc.) of the boundaries at different positions. How could that be done. Could any one give me some suggestions? Can I convert the boundaries to a set of connected straight lines?  
  12. yasmin_bd

    A simple question on rotation

    Thank you, I understand. I need to find the cross product of (ax, by, cz) and (0, y,0) and then use it in glRotatef function.
  13. I have a number of contours which are oriented as shown in the attached figure. I would like to construct surface from these set of contours as defined by the red outline in the figure. Could any  one give me some suggestions? Thanks      
  14. I need some clarification about glRotatef function. I have a rectangular plane with normal ax + by + cz = 0; I would like to rotate it to align along (0, 1, 0) i.e. Y-axis. I can find the in-between angle by dot product. Suppose the angle is theta in degree. Now how can I use glRotatef function to rotate the plane so that the new normal to the plane is along (0, 1, 0) vector; Is the following ok? glRotatef( - theta, a, b, c); If not, what will be the correct version?
  15. yasmin_bd

    A simple question on mathematics

    Ok, then will the value of 't' be greater than 1 in this case?
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