Posted by PedDavid on Jun 02, 2015; 1:10am
URL: https://forum.jogamp.org/Texture-Problem-probably-gl-glTexImage2D-tp4034564.html

I'm not getting anything when rendering with the texture (black screen with a shader output = texture input and normal colors with shader that outputs simple colors(the one in the git repository)).
My method is:

gl.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB, texture.getWidth(), texture.getHeight(), 0, GL2.GL_RGB, GL2.GL_UNSIGNED_BYTE, null);

I guess that null is completely wrong...

All my loadTexture method:

    public int loadTexture(String fileName){
        Texture texture = new Texture(0);
        try{
            FileInputStream textureInput = new FileInputStream(fileName + ".png");
            texture = TextureIO.newTexture(textureInput, false, null);
        }catch (IOException e){
            System.out.println("Failed loading texture");
            e.printStackTrace();
            System.exit(0);
        }

        gl.glGenTextures(1, tempTextureHolder, 0);
        gl.glBindTexture(GL2.GL_TEXTURE_2D, tempTextureHolder[0]);
        textures.add(tempTextureHolder[0]);

        gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);
        gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST);
        gl.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB, texture.getWidth(), texture.getHeight(), 0, GL2.GL_RGB, GL2.GL_UNSIGNED_BYTE, null);

        System.out.println("Texture : "+ gl.glIsTexture(tempTextureHolder[0])); //returning true

        return tempTextureHolder[0];
    }

complete code (a real mess): https://github.com/PedDavid/NubDevEngine

Would love some feedback on the code and if someone could point me in the right direction about textures

Edit: The code still hasn't the changes I made to display, textureLoader (that I already showed) and a second vbo with the textures coordinates

display is:        
        shader.start();
        gl.glBindVertexArray(model.getVaoID());
        gl.glEnableVertexAttribArray(0);
        gl.glEnableVertexAttribArray(1);
        gl.glActiveTexture(GL2.GL_TEXTURE0);
        gl.glBindTexture(GL2.GL_TEXTURE_2D, texModel.getTexture().getId());
        gl.glDrawElements(GL_TRIANGLES, model.getVertexCount(), GL_UNSIGNED_INT, 0);
        gl.glDisableVertexAttribArray(0);
        gl.glDisableVertexAttribArray(1);
        gl.glBindVertexArray(0);
        shader.stop();