lighttroupe/luz

class ActorEffectVertexShaderText < ActorEffect
    title                "Vertex Shader Test"
    description ""

    categories :special

    setting 'amount', :float, :default => 0.0..1.0, :shader => true

    CODE = "
            vertex.x += (rand(vertex.xy)-0.5) * amount;
            vertex.y += (rand(vertex.yx)-0.5) * amount;
        "

    def render
        return yield if amount == 0.0

        with_vertex_shader_snippet(CODE, self) {
            yield
        }
    end
end