So my problem is that I try to load several textures at startup and then save all IDs so that I can bind them to their use. Now I know that the identifier is stored correctly, because I can debug it and see, both in assignment and in use, that the identifier is the same. For each binding, the last texture that I load is used. Here is my code:
GLuint TextureLoader::LoadTexture (const char* fileName,Material& material,int width,int height) {
GLuint textureImage;
FILE* textureFile;
textureFile = fopen(fileName, "rb");
unsigned char* imageData;
if (textureFile == NULL) {
return 0;
}
imageData = (unsigned char*)malloc(width * height * 3);
char header[54];
fread(header,1,54,textureFile);
fread(imageData, width * height * 3, 1, textureFile);
fclose(textureFile);
for (int i = 0; i < width * height; ++i) {
int nextIndex = i * 3;
unsigned char a = imageData[nextIndex];
unsigned char b = imageData[nextIndex+2];
imageData[nextIndex] = b;
imageData[nextIndex+2] = a;
}
glEnable(GL_TEXTURE_2D);
glGenTextures( 1, &textureImage );
glBindTexture( GL_TEXTURE_2D, textureImage );
glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE,GL_MODULATE );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_BGR, GL_UNSIGNED_BYTE, imageData);
glGenerateMipmap(GL_TEXTURE_2D);
free(imageData);
return textureImage;
}
Here is my use of this code:
if (showTexture) {
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, material.texture);
}
Here is my download request:
green1.texture = TextureLoader::LoadTexture("/Users/hewitt/Desktop/OpenGLImages/face6.bmp",green1, 256, 256);
And then I just use:
glTexCoord2f(1.0f,0.0f);
for drawing depending on the change in angle. And it draws one texture correctly, it just repeats the texture even when I use a different number.
Any help is greatly appreciated.
Edit ----------
glBegin(mode);
Spatial::Vector3 normal = Mesh::calculateNormal (pointGroup);
glNormal3f(normal.x, normal.y, normal.z);
Material material = mesh.getMaterial();
if (showTexture) {
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, material.texture);
}
int counter = 0;
for (Spatial::Vector3 point : pointGroup) {
if (showTexture == false) {
Material::Colour colour = material.getColour();
glColor3f(colour.red, colour.green, colour.blue);
} else {
if (counter == 0) {
glTexCoord2f(1.0f,0.0f);
} else if (counter == 1) {
glTexCoord2f(1.0f,1.0f);
} else if (counter == 2) {
glTexCoord2f(0.0f,1.0f);
} else if (counter == 3) {
glTexCoord2f(0.0f,0.0f);
}
}
glVertex3f(point.x,point.y,point.z);
counter ++;
}
glEnd();