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Tekstuuras

 
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Kuras tekstuuras ir labaakaas
TGA
28%
 28%  [ 2 ]
JPG
14%
 14%  [ 1 ]
BMP
14%
 14%  [ 1 ]
Cita [ierakstiit forumaa]
42%
 42%  [ 3 ]
Total Votes : 7

Author Message
Angel



Joined: 02 Jan 2005
Posts: 113
Location: Latvija
PostPosted: Thu Jun 02, 2005 7:05 pm    Post subject: Tekstuuras
Man ir viena probleema (jau atkal Very Happy ), kuru nekaadi vienc nevaru atrisinaat.

Eku buus kods:
Code:

/**********************************/
/*   Texture.hpp               */
/**********************************/
#include "../main.h"
#define TGA 1
#define BMP 2


class CTexture{
private:
public:
   CTexture();
   ~CTexture();

   bool Load(char* filename, int type);
   void Delete();

   unsigned int ID;
   int width, height;
   unsigned char *image;
   int type;
};

/********************************/
/*   Texture.cpp               */
/********************************/
bool CTexture::Load(char* filename, int type){

   FILE *fp;
   
   switch(type){

      case BMP:
         {
            BITMAPFILEHEADER fileHeader;
            BITMAPINFOHEADER infoHeader;
            if((fp = fopen(filename,"rb")) == NULL )
               return false;

            fread(&fileHeader,sizeof(fileHeader),1,fp);
            
            fseek(fp,sizeof(fileHeader),SEEK_SET);
            fread(&infoHeader, sizeof(infoHeader),1,fp);

            width = infoHeader.biWidth;
            height = infoHeader.biHeight;
            
            image = (byte *) malloc(width*height*3);
            ZeroMemory(&image,width*height*3);
            
            RGBTRIPLE rgb;
            int j = 0;
            for(int i = 0; i<width*height*3; i++){
               fread(&rgb, sizeof(rgb),1,fp);

               image[j] = rgb.rgbtRed;
               image[j+1]=rgb.rgbtGreen;
               image[j+2]=rgb.rgbtBlue;
               j+=3;

            }

            fclose(fp);

            glGenTextures(1,&ID);
            glBindTexture(GL_TEXTURE_2D, ID);

            glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
            glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
            glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
            glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);

            glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

            glTexImage2D(GL_TEXTURE_2D, 0,4,width, height,0,GL_RGB,GL_UNSIGNED_BYTE,image);
            gluBuild2DMipmaps(GL_TEXTURE_2D, 3, width, height, GL_RGB, GL_UNSIGNED_BYTE, image);

            free(image);
         }
         break;
   }
   return true;
}


void CTexture::Delete(){
   if(image){
      delete[] image;
      image = 0;
   }
}

/******************************/
/*   Main.cpp            */
/******************************/

#include "main.h"
//#include "Camera/Camera.h"
//#include "Frustum/Frustum.h"
#include "textures/textures.hpp"

CTexture texture;

void Initialize(){
   // Aditional init stuff
   //camera.Position(0,1,0,      0,0,0,   0,1,0);
   texture.Load("test.bmp",2);
    glEnable(GL_TEXTURE_2D);
}

void DrawGrid(){
   for(float  x=-25;x<25;x++){
      for(float z=-25;z<25;z++){
         glBegin(GL_LINES);
            glVertex3f(x,0,0);
            glVertex3f(x,0,z);

            glVertex3f(0,0,z);
            glVertex3f(x,0,z);
         glEnd();
      }
   }
}

void DrawScene(){
   glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
   glLoadIdentity();

   //camera.Look();
   gluLookAt(0,2,-10,0,0,0,0,1,0);

   DrawGrid();
   glBindTexture(GL_TEXTURE_2D, texture.ID);
   glBegin(GL_QUADS);
      glTexCoord2f(0,0);   glVertex3f(-1,1,0);
      glTexCoord2f(0,1);   glVertex3f(-1,-1,0);
      glTexCoord2f(1,1);   glVertex3f(1,-1,0);
      glTexCoord2f(1,0);   glVertex3f(1,1,0);

   glEnd();

}



Ehh, sorry ka posts ir tik garsh, bet luudzu nedusmojaties, probleema ir patieshaam interesanta
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Last edited by Angel on Fri Jun 03, 2005 12:28 am; edited 1 time in total
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Vecais_Dumais_Laacis
Guru
Guru


Joined: 29 Jan 2004
Posts: 800
PostPosted: Thu Jun 02, 2005 7:53 pm    Post subject:
probleema nr 1) avatars konkreeti izmeeros nerullee
2) ar opengl neesmu straadaajis bet cik no ogres noprotu ir taksh devil libraarijs http://openil.sourceforge.net/ kursh bilzhu formaatu probleemas atrisina

par tekstuuru labumu - domaaju ka bmp viennoziimigi nee
dds/tga/jpeg taadaa arii seciibaa (hvz par opengl un dds)
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...un ja bites buutu laachi...

Last edited by Vecais_Dumais_Laacis on Thu Jun 02, 2005 7:56 pm; edited 1 time in total
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s1
Guest
PostPosted: Thu Jun 02, 2005 7:53 pm    Post subject:
Kā izpaužas dzīvē šī problēma?
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Angel



Joined: 02 Jan 2005
Posts: 113
Location: Latvija
PostPosted: Thu Jun 02, 2005 8:30 pm    Post subject:
Crying or Very sad textuuras vnk NAV!!! Crying or Very sad Dari ko gribi, bet nav iespeejams ieraudzzit textuuru
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Last edited by Angel on Fri Jun 03, 2005 12:28 am; edited 1 time in total
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anggelus



Joined: 23 Feb 2005
Posts: 383
Location: Rīga (LV)
PostPosted: Thu Jun 02, 2005 9:33 pm    Post subject:
formāti: labākais DDS, tad tga un pēc tam pārējie.

Pamēģini pirms glBindTexture(GL_TEXTURE_2D, texture.ID);
pielikt glEnable(GL_TEXTURE_2D);, ja tas nedarbojas, tad ar BMP ielādi kaut kas nav kārtībā, ar BMP neesmu darbojies tāpēc par to neko nevaru pateikt.
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anggelus



Joined: 23 Feb 2005
Posts: 383
Location: Rīga (LV)
PostPosted: Thu Jun 02, 2005 10:21 pm    Post subject:
Es domāju, ka šis neder:
Code:

            glTexImage2D(GL_TEXTURE_2D, 0,4,width, height,0,GL_RGB,GL_UNSIGNED_BYTE,image);
            gluBuild2DMipmaps(GL_TEXTURE_2D, 3, width, height, GL_RGB, GL_UNSIGNED_BYTE, image);


Lieto vai nu vienu vai otru, un kāpēc tev gluBuild2DMipmaps otrais parametrs ir 3?

nodzēs to glTexImage2D rindiņu un atstāj tikai gluBuild2DMipmaps:
Code:

gluBuild2DMipmaps (GL_TEXTURE_2D, GL_RGB8, width,
            height, GL_RGB, GL_UNSIGNED_BYTE,
            pixels);

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Angel



Joined: 02 Jan 2005
Posts: 113
Location: Latvija
PostPosted: Thu Jun 02, 2005 11:58 pm    Post subject:
Khm, khm....
Tagad mans koods izstaas peec kkaadas modernaas gleznas, kur izmantotas zaljaa, zilaa un melnaa kraasa... Embarassed
Es tekstuuru ielaadi tieshaa veidaa aizstaaju ar glaux bmp ielaadi no nehe 6 tutoriaala
Quote:
http://nehe.gamedev.net/data/lessons/vc/lesson06.zip


Bet taa pat nekaa, liekas, ka tekstuuras man vispaar nespiid............ Sad
aaa un veel es meeginaaju targa bildes (tga) un sanaaca tieshi tas pac.... nekas Wink
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GiGa
Indago Uzvarētājs
Indago Uzvarētājs


Joined: 25 Sep 2003
Posts: 887
PostPosted: Fri Jun 03, 2005 11:59 am    Post subject:
Es kaut kaa nesaprotu sho dalju:
Code:

void DrawGrid(){
   for(float  x=-25;x<25;x++){
      for(float z=-25;z<25;z++){
         glBegin(GL_LINES);
            glVertex3f(x,0,0);
            glVertex3f(x,0,z);

            glVertex3f(0,0,z);
            glVertex3f(x,0,z);
         glEnd();
      }
   }
}

void DrawScene(){
   glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
   glLoadIdentity();

   //camera.Look();
   gluLookAt(0,2,-10,0,0,0,0,1,0);

   DrawGrid();
   glBindTexture(GL_TEXTURE_2D, texture.ID);
   glBegin(GL_QUADS);
      glTexCoord2f(0,0);   glVertex3f(-1,1,0);
      glTexCoord2f(0,1);   glVertex3f(-1,-1,0);
      glTexCoord2f(1,1);   glVertex3f(1,-1,0);
      glTexCoord2f(1,0);   glVertex3f(1,1,0);
   glEnd();
}

kad tiek ziimeets DrawGrid textuuras ir izsleegtas? Un peec tam taas netiek iesleegtas? Pameegjini glEnable(GL_TEXTURE_2D); pirms glBegin(GL_QUADS); un glDisable(GL_TEXTURE_2D); pirms DrawGrid();
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Angel



Joined: 02 Jan 2005
Posts: 113
Location: Latvija
PostPosted: Fri Jun 03, 2005 1:01 pm    Post subject:
pie initialize jau bija glEnable(GL_TEXTURE_2D);
Code:

void Initialize(){
   // Aditional init stuff
   //camera.Position(0,1,0,      0,0,0,   0,1,0);
   texture.Load("test.bmp",2);
    glEnable(GL_TEXTURE_2D);
}


Bet izmantojot arii tavu variantu nekas nemainaas...
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GiGa
Indago Uzvarētājs
Indago Uzvarētājs


Joined: 25 Sep 2003
Posts: 887
PostPosted: Fri Jun 03, 2005 4:15 pm    Post subject:
Ja tieshaam tik ljoti vajag atrast to kljuudu, atmet pilnu kodu uz: giga86@tvnet.lv pameegjinaashu atrast, te tagad gruuti kaut ko ieraudziit.
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Angel



Joined: 02 Jan 2005
Posts: 113
Location: Latvija
PostPosted: Fri Jun 03, 2005 11:51 pm    Post subject:
GIGA: Domaaju, ka pac veel pamekleesu vai arii paarrakstiishu visu, ja tomeer nekas nesanaaks, tad izmantoshu tavu piedaavaajumu Wink
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