2 #include <msp/strings/format.h>
16 Bloom::Bloom(unsigned w, unsigned h):
17 blur_shader(Resources::get_global().get<Program>("_bloom_blur.glsl.shader")),
18 combine_shader(Resources::get_global().get<Program>("_bloom_combine.glsl.shader")),
19 quad(Resources::get_global().get<Mesh>("_fullscreen_quad.mesh")),
20 nearest_sampler(Resources::get_global().get<Sampler>("_nearest_clamp.samp")),
21 linear_sampler(Resources::get_global().get<Sampler>("_linear_clamp.samp"))
23 blur_shdata[0].uniform("delta", 1.0f/w, 0.0f);
24 blur_shdata[1].uniform("delta", 0.0f, 1.0f/h);
26 for(unsigned i=0; i<2; ++i)
27 target[i] = new RenderTarget(w, h, (RENDER_COLOR,RGB16F));
35 for(unsigned i=0; i<2; ++i)
39 void Bloom::set_radius(float r)
42 throw invalid_argument("Bloom::set_radius");
44 int size = min(static_cast<int>(r*3.0f), 9);
45 common_shdata.uniform("size", size);
47 vector<float> factors(size*2+1);
50 for(int i=-size; i<=size; ++i)
51 sum += (factors[size+i] = exp(-i*i/r));
52 for(int i=0; i<=size*2; ++i)
55 common_shdata.uniform1_array("factors", size*2+1, &factors.front());
58 void Bloom::set_strength(float s)
61 throw invalid_argument("Bloom::set_strength");
62 common_shdata.uniform("strength", s);
65 void Bloom::render(Renderer &renderer, const Texture2D &src, const Texture2D &)
67 Renderer::Push push(renderer);
68 renderer.set_shader_program(&blur_shader, &common_shdata);
69 for(unsigned i=0; i<2; ++i)
71 BindRestore bind_fbo(target[i]->get_framebuffer());
72 Renderer::Push push2(renderer);
73 renderer.set_texture("source", (i ? &target[0]->get_target_texture(RENDER_COLOR) : &src), &nearest_sampler);
74 renderer.add_shader_data(blur_shdata[i]);
78 renderer.set_texture("source", &src, &nearest_sampler);
79 renderer.set_texture("blurred", &target[1]->get_target_texture(RENDER_COLOR), &linear_sampler);
80 renderer.set_shader_program(&combine_shader);
84 void Bloom::set_debug_name(const string &name)
87 for(unsigned i=0; i<2; ++i)
88 target[i]->set_debug_name(format("%s [RT:%d]", name, i));
89 common_shdata.set_debug_name(name+" [UBO:common]");
90 blur_shdata[0].set_debug_name(name+" [UBO:blur_x]");
91 blur_shdata[1].set_debug_name(name+" [UBO:blur_y]");
98 Bloom::Template::Template():
103 Bloom *Bloom::Template::create(unsigned width, unsigned height) const
105 RefPtr<Bloom> bloom = new Bloom(width/size_divisor, height/size_divisor);
106 bloom->set_radius(radius);
107 bloom->set_strength(strength);
108 return bloom.release();
112 Bloom::Template::Loader::Loader(Template &t):
113 DataFile::DerivedObjectLoader<Template, PostProcessor::Template::Loader>(t)
115 add("strength", &Template::strength);
116 add("radius", &Template::radius);