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ajm113

OpenGL Strange tga file render

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Image and video hosting by TinyPic Here is a sample of the function.
GLuint loadTextureTGA(tImageTGA *tImageTGA) {
    GLuint textureId;
     glGenTextures(1, &textureId); //Make room for our texture
    
        glBindTexture(GL_TEXTURE_2D, textureId); //Tell OpenGL which texture to edit
    //Map the image to the texture
    glTexImage2D(GL_TEXTURE_2D,                //Always GL_TEXTURE_2D
                 0,                            //0 for now
                 GL_RGB,                       //Format OpenGL uses for image
                 tImageTGA->size_y, tImageTGA->size_x,  //Width and height
                 0,                            //The border of the image
                 GL_RGB, //GL_RGB, because pixels are stored in RGB format
                 GL_UNSIGNED_BYTE, //GL_UNSIGNED_BYTE, because pixels are stored
                                   //as unsigned numbers
                 tImageTGA->data);               //The actual pixel data
                 
        return textureId; //Returns the id of the texture
}



Use with the init event.
	tImageTGA*  TREEi = Load_TGA("TaBase/Textures/RandomWorld/maple_tree.tga");
	TREE2 = loadTextureTGA(TREEi);
	delete  TREEi;

P.S whats the function to enable transparency in openGL? I know it's gl blend, but I forgot the other one.

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It looks like you've got the wrong parameters for GL_RGB and GL_UNSIGNED_BYTE. You can definitely see the tree in there, but it's all... messed up. Are you sure there's no alpha channel in the TGA? You probably already have this information in your tImageTGA pointer, your glTexImage2D call could use them and never fail like this again.

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Yes it's using a alpha channel, but it seems not to show up. I had to use GL_RGBA. So now the image is showing, but it seems it's alpha channel isn't working. :(

Image and video hosting by TinyPic

I remember that their was a a function for this kind of stuff for the inital area, that contains ALPHA something... That toke 2 parameters, I think.

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