Sprite and Shader

[Sakurazaki]

Hi there,

I've got one Sprite which loads an spritesheet and a shader, and it's texture changes on animation
by seting an intrect.

So when rendering, I calculate the new intrect for the animation and then draw it to rendertarget (which is renderwindow by now) like this:

window->draw(*this, &shader);

This is the code to my shader:

uniform vec2 lightpos;
uniform vec3 lightColor;
uniform float screenHeight;
uniform vec3 lightAttenuation;
uniform float radius;

uniform sampler2D tex;

void main()
{              
        vec2 pixel=gl_FragCoord.xy;            
        pixel.y=screenHeight-pixel.y;  
        vec2 aux=lightpos-pixel;
        float distance=length(aux);
        float attenuation=1.0/(lightAttenuation.x+lightAttenuation.y*distance+lightAttenuation.z*distance*distance);   
        vec4 color=vec4(attenuation,attenuation,attenuation,1.0)*vec4(lightColor,1.0); 
        gl_FragColor = color * texture2D(tex,gl_TexCoord[0].st);
}

and how I load it to sf::Shader:

sf::Shader shader; // member of my sprite holding class.
        shader.loadFromFile("assets/shaders/lightfx.frag", sf::Shader::Fragment);
        shader.setParameter("lightpos", sf::Vector2f(150.f, 50.f));
        shader.setParameter("lightColor", sf::Vector3f(255.f, 255.f, 255.f));
        shader.setParameter("screenHeight", static_cast<float>(window->getSize().y));
        shader.setParameter("lightAttenuation", sf::Vector3f(50.f, 25.f, 15.f));
        shader.setParameter("radius", 500.f);
        shader.setParameter("texture", sf::Shader::CurrentTexture);

The lighting is fixed by now cause I'm still developing lighting system but this should work.

I want to know why it doesn't seem to abe applied the shader to my sprite.
Am I doing something wrong?

EDIT: Forgot to comment that the output from this is just sprite being as black color square. and If i change the attenuation to 0, it shows the lightColor square, but I want it to "diffuminate" over the sprite.

Thanks!

[Nexus]

Two uniforms are misspelled.

Also, I wouldn't name the sampler texture, since that's the name of a builtin GLSL function.

And what kind of relative path begins with a backslash? You should only use forward slashes anyway. But relative paths usually begin with the name of a file/directory or one or two dots.

[Sakurazaki]

I already fixed the 2 misspell attributes (Thanks i didnt notice) and changed the path to normal /.

Yet the drawing is exactly the same.

Edit: I should add that what I want to do is to make mi sprite to get the lighting and blend over it
some degradation of transparent-black + shadowing. Not sure if I'm doing it correctly