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Raw textures don't work at all! OpenGL

 原文  2011-06-04 09:16:11  1   1    c++/ file/ opengl/ textures

Question

Here is my load code:

GLuint Utils::loadTextureRAW(const char *filename, int width, int height) {
GLuint texture;
char *data;
fstream file(filename, ios::binary | ios::in);
if (!file.good())
    return 0;

// allocate buffer
data = static_cast<char*>(malloc(width * height * 4));

// read texture data
file.read(data, width * height * 4);

file.close();

int i;
for (i = 0; i < width * height * 4; ++i) {
    cout << static_cast<int>(data[i]) << "|";
}

// allocate a texture name
glGenTextures(1, &texture);

// select our current texture
glBindTexture(GL_TEXTURE_2D, texture);

// select modulate to mix texture with color for shading
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_DECAL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_DECAL);

// when texture area is small, bilinear filter the closest mipmap
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
// when texture area is large, bilinear filter the first mipmap
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

// texture should tile
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

// build our texture mipmaps
gluBuild2DMipmaps(GL_TEXTURE_2D, 4, width, height, GL_RGBA, GL_UNSIGNED_BYTE, data);

// free buffer
delete data;

return texture; }

Here is my using code:

int Object::redraw() {
const float sizex = 0.5f;
const float sizey = 0.5f;
const float sizez = 0.5f;

glTranslatef(-px, -py, -pz);

glMatrixMode(GL_MODELVIEW);
glEnable(GL_TEXTURE_2D);
glPushMatrix();

//поворачиваем будущий объект объект
//rotating next object
glRotatef(rx, 1.0, 0.0, 0.0);
glRotatef(ry, 0.0, 1.0, 0.0);
glRotatef(rz, 0.0, 0.0, 1.0);

//рисуем
//drawing
glBegin(GL_QUADS);
// FRONT
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-sizex, -sizey, sizez);

glTexCoord2f(sizex , 0.0f);
glVertex3f(sizex, -sizey, sizez);

glTexCoord2f(sizex, sizey);
glVertex3f(sizex, sizey, sizez);

glTexCoord2f(0.0f, sizey);
glVertex3f(-sizex, sizey, sizez);
// BACK
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-sizex, -sizey, -sizez);

glTexCoord2f(sizex, 0.0f);
glVertex3f(-sizex, sizey, -sizez);

glTexCoord2f(sizex, sizey);
glVertex3f(sizex, sizey, -sizez);

glTexCoord2f(0.0f, sizey);
glVertex3f(sizex, -sizey, -sizez);
// LEFT
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-sizex, -sizey, sizez);

glTexCoord2f(sizex, 0.0f);
glVertex3f(-sizex, sizey, sizez);

glTexCoord2f(sizex, sizey);
glVertex3f(-sizex, sizey, -sizez);

glTexCoord2f(0.0f, sizey);
glVertex3f(-sizex, -sizey, -sizez);
// RIGHT
glTexCoord2f(0.0f, 0.0f);
glVertex3f(sizex, -sizey, -sizez);

glTexCoord2f(sizex, 0.0f);
glVertex3f(sizex, sizey, -sizez);

glTexCoord2f(sizex, sizey);
glVertex3f(sizex, sizey, sizez);

glTexCoord2f(0.0f, sizey);
glVertex3f(sizex, -sizey, sizez);
// TOP
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-sizex, sizey, sizez);

glTexCoord2f(sizex, 0.0f);
glVertex3f(sizex, sizey, sizez);

glTexCoord2f(sizex, sizey);
glVertex3f(sizex, sizey, -sizez);

glTexCoord2f(0.0f, sizey);
glVertex3f(-sizex, sizey, -sizez);
// BOTTOM
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-sizex, -sizey, sizez);

glTexCoord2f(sizex, 0.0f);
glVertex3f(-sizex, -sizey, -sizez);

glTexCoord2f(sizex, sizey);
glVertex3f(sizex, -sizey, -sizez);

glTexCoord2f(0.0f, sizey);
glVertex3f(sizex, -sizey, sizez);

glEnd();
glPopMatrix();
glDisable(GL_TEXTURE_2D); }

Here is texture: 

000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

EDITED: Detected one other problem - for (i = 0; i < width * height * 4; ++i) outputs this:

1|0|0|0|0|0|0|0|5|0|0|0|0|0|0|0|-128|63|59|20|1|0|0|0|64|9|-108|2|1|0|0|0|1|0|0|0|1|0|0|0|1|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|-64|27|-78|0|2|0|0|0|1|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|-128|63|0|0|-128|63|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|-98|70|41|-127|-1|127|0|0|99|-51|56|0|2|0|0|0|0|0|0|0|2|0|0|0|0|-16|117|0|1|0|0|0|0|0|0|0|0|0|0|0|-104|123|115|0|1|0|0|0|0|-16|117|0|1|0|0|0|0|0|0|0|0|0|0|0|64|0|-97|65|0|0|0|0|64|7|-86|34|0|0|0|0|-80|-15|-65|95|-1|127|0|0|-128|117|9|0|2|0|0|0|0|0|0|0|0|0|0|0|-80|52|-108|2|1|0|0|0|0|0|0|0|0|0|0|0|-128|-14|-65|95|-1|127|0|0|-32|-15|-65|95|-1|127|0|0|0|0|0|0|0|0|0|0|32|0|0|0|0|0|0|0|32|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|64|7|0|0|0|0|0|0|-96|110|118|0|1|0|0|0|64|7|0|0|0|0|0|0|-96|110|118|0|1|0|0|0|32|0|0|0|0|0|0|0|80|-13|-65|95|-1|127|0|0|-128|47|8|0|2|0|0|0|-32|-15|-65|95|-1|127|0|0|32|0|0|0|0|0|0|0|-128|-14|-65|95|-1|127|0|0|32|-12|-65|95|-1|127|0|0|64|7|-86|34|0|0|0|0|0|0|0|0|0|0|0|0|-16|28|-108|2|1|0|0|0|2|2|-17|-66|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|3|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|1|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|96|0|-97|65|0|0|0|0|0|0|0|0|42|0|0|0|-80|52|-108|2|1|0|0|0|-80|-10|-65|95|0|1|0|0|64|0|0|0|1|0|0|0|-64|45|-63|95|-1|127|0|0|-48|-13|-65|95|-1|127|0|0|3|0|0|0|-1|127|0|0|112|-12|-65|95|-1|127|0|0|73|86|-55|2|1|0|0|0|0|116|17|0|1|0|0|0|105|86|-55|2|1|0|0|0|-72|91|-55|2|1|0|0|0|48|-12|-65|95|-1|127|0|0|6|0|0|0|0|0|0|0|73|86|-55|2|1|0|0|0|-96|-12|-65|95|-1|127|0|0|16|0|0|0|-1|127|0|0|73|86|-55|2|1|0|0|0|5|0|0|0|0|0|0|0|-96|-10|-65|95|-1|127|0|0|64|-13|119|0|1|0|0|0|0|-120|-127|1|1|0|0|0|19|-74|36|92|32|-66|35|74|-96|110|118|0|1|0|0|0|45|0|0|0|0|0|0|0|-112|-11|-65|95|-1|127|0|0|112|-9|-65|95|-1|127|0|0|-64|-43|29|112|-1|127|0|0|-80|-10|-65|95|-1|127|0|0|-128|-11|-65|95|-1|127|0|0|-41|10|45|-127|-1|127|0|0|-78|-10|-65|95|-1|127|0|0|-112|-15|119|0|42|0|0|0|8|2|-1|-1|1|0|0|0|-80|-10|-65|95|-1|127|0|0|44|0|0|0|1|0|0|0|-128|-15|119|0|1|0|0|0|-16|-11|-65|95|-1|127|0|0|0|48|111|0|1|0|0|0|0|-16|117|0|1|0|0|0|0|-16|117|0|1|0|0|0|-16|-11|-65|95|-1|127|0|0|96|120|-108|2|1|0|0|0|16|-12|-65|95|-1|127|0|0|48|-12|-65|95|-1|127|0|0|0|0|0|0|0|0|0|0|16|-128|-108|2|1|0|0|0|0|48|111|0|1|0|0|0|16|-114|114|0|1|0|0|0|64|-10|-65|95|-1|127|0|0|-19|111|8|0|2|0|0|0|0|0|0|0|0|0|0|0|4|0|0|0|0|0|1|0|0|0|0|0|0|0|0|0|-89|-85|-86|50|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|

But if I correctly understand half of it must be zeros and half must be 255. WTF or I'm doing something wrong?

EDITED: Tried to do this:

data[0] = 0;
data[1] = 0;
data[2] = 0;
data[3] = 255;
data[4] = 0;
data[5] = 0;
data[6] = 0;
data[7] = 255;
data[8] = 0;
data[9] = 0;
data[10] = 0;
data[11] = 255;
data[12] = 0;
data[13] = 0;
data[14] = 0;
data[15] = 255;

And texture is all black(http://cl.ly/7KJd), changed zeros to 255 and texure is white. So the problem is in file loading!

** * ** * ** * ***

PROBLEM WAS SOLVED!

1 answers

solution1
 4 ACCPTED  2011-06-04 15:59:39

In OpenGL, white textures show up when the texture is incomplete or in error.

Most of the time, it's related to missing mipmaps, but as you use gluBuild2DMipmaps it may not be directly related.

You should try to call glGetError to try to narrow down your problem: as mentionned in the comments, you make a lot of improper GL calls in the code you posted.

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