sfml gradient shaders question

[battosaijenkins]

Hello, I posted a question in github SFML Gradient shaders but was told to post here instead. I was wondering if it's possible to pass an sf::Transform into the draw function along with the shader?

For example normal draw I would pass a transform like:

Code: [Select]

window.draw(circle, transform);

but with shaders that 2nd parameter is already taken up like

Code: [Select]

window.draw(circle, &shader);

 and I cant add a third parameter. I read somewhere that I could use

Code: [Select]

shader.setUniform("matrix", sf::Glsl::Mat4(transform));

but I added

Code: [Select]

"uniform mat4 matrix;"

in const char RadialGradient[] but I'm getting Uniform "matrix" not found in shader. Am I doing it wrong, or overdoing it or missing something?

[G.]

Hey. You can use an sf::RenderStates and pass it to your draw function instead of only the shader.

[battosaijenkins]

So I cant use sf::Transform?

[battosaijenkins]

Oh I see what you mean. You're saying I would use sf::RenderStates state and then use state.transform = transform and also use &shader in state.shader then pass state like window.draw(circle, state);? I think I understand now, thanks.