1 #include "framebuffer.h"
3 #include "pbrmaterial.h"
13 const Tag PbrMaterial::texture_tags[] =
15 Tag("base_color_map"),
21 Tag("fresnel_lookup"),
25 PbrMaterial::PbrMaterial():
26 fresnel_lookup(get_or_create_fresnel_lookup())
34 const Texture2D &PbrMaterial::get_or_create_fresnel_lookup()
36 Resources &resources = Resources::get_global();
38 static const string name = "_pbr_env_fresnel_lookup.tex2d";
39 Texture2D *fresnel_lookup = resources.find<Texture2D>(name);
41 return *fresnel_lookup;
43 fresnel_lookup = new Texture2D;
44 fresnel_lookup->storage(RG8, 128, 128, 1);
45 resources.add(name, fresnel_lookup);
47 const Program &shprog = resources.get<Program>("_pbr_fresnel_lookup.glsl.shader");
49 shdata.uniform("n_samples", 1024);
50 // Not actually used here, but put it in to satisfy the interface
51 shdata.uniform("roughness", 0.0f);
53 const Mesh &mesh = resources.get<Mesh>("_fullscreen_quad.mesh");
54 Framebuffer fresnel_lookup_fbo;
55 fresnel_lookup_fbo.attach(COLOR_ATTACHMENT0, *fresnel_lookup);
56 Bind bind_fbo(fresnel_lookup_fbo);
58 renderer.set_shader_program(&shprog, &shdata);
61 return *fresnel_lookup;
64 void PbrMaterial::fill_program_info(string &module_name, map<string, int> &spec_values) const
66 module_name = "cooktorrance.glsl";
67 spec_values["use_base_color_map"] = (base_color.texture!=0);
68 spec_values["use_normal_map"] = (normal.texture!=0);
69 spec_values["use_metalness_map"] = (metalness.texture!=0);
70 spec_values["use_roughness_map"] = (roughness.texture!=0);
71 spec_values["use_occlusion_map"] = (occlusion.texture!=0);
72 bool use_emission = (emission.texture || emission.value.r || emission.value.g || emission.value.b);
73 spec_values["use_emission"] = use_emission;
74 spec_values["use_emission_map"] = (emission.texture!=0);
77 #pragma GCC diagnostic push
78 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
79 void PbrMaterial::attach_textures_to(Texturing &texturing, ProgramData &tex_shdata) const
81 attach_texture_to(base_color.texture, texturing, tex_shdata, "base_color_map");
82 attach_texture_to(metalness.texture, texturing, tex_shdata, "metalness_map");
83 attach_texture_to(roughness.texture, texturing, tex_shdata, "roughness_map");
84 attach_texture_to(normal.texture, texturing, tex_shdata, "normal_map");
85 attach_texture_to(occlusion.texture, texturing, tex_shdata, "occlusion_map");
86 attach_texture_to(emission.texture, texturing, tex_shdata, "emission_map");
88 #pragma GCC diagnostic pop
90 const Texture *PbrMaterial::get_texture(Tag tag) const
92 if(tag==texture_tags[0])
93 return base_color.texture;
94 else if(tag==texture_tags[1])
95 return normal.texture;
96 else if(tag==texture_tags[2])
97 return metalness.texture;
98 else if(tag==texture_tags[3])
99 return roughness.texture;
100 else if(tag==texture_tags[4])
101 return occlusion.texture;
102 else if(tag==texture_tags[5])
103 return emission.texture;
104 else if(tag==texture_tags[6])
105 return &fresnel_lookup;
110 void PbrMaterial::set_base_color(const Color &color)
112 base_color.value = color;
113 shdata.uniform("pbr_material.base_color", color);
116 void PbrMaterial::set_base_color_map(const Texture *tex)
118 base_color.texture = tex;
121 void PbrMaterial::set_normal_map(const Texture *tex)
123 normal.texture = tex;
126 void PbrMaterial::set_metalness(float value)
128 metalness.value = value;
129 shdata.uniform("pbr_material.metalness", value);
132 void PbrMaterial::set_metalness_map(const Texture *tex)
134 metalness.texture = tex;
137 void PbrMaterial::set_roughness(float value)
139 roughness.value = value;
140 shdata.uniform("pbr_material.roughness", value);
143 void PbrMaterial::set_roughness_map(const Texture *tex)
145 roughness.texture = tex;
148 void PbrMaterial::set_occlusion_map(const Texture *tex)
150 occlusion.texture = tex;
153 void PbrMaterial::set_emission(const Color &color)
155 emission.value = color;
156 shdata.uniform("pbr_material.emission", color);
159 void PbrMaterial::set_emission_map(const Texture *tex)
161 emission.texture = tex;
165 DataFile::Loader::ActionMap PbrMaterial::Loader::shared_actions;
167 PbrMaterial::Loader::Loader(PbrMaterial &m):
168 DerivedObjectLoader<PbrMaterial, Material::PropertyLoader<PbrMaterial> >(m)
170 set_actions(shared_actions);
173 PbrMaterial::Loader::Loader(PbrMaterial &m, Collection &c):
174 DerivedObjectLoader<PbrMaterial, Material::PropertyLoader<PbrMaterial> >(m, c)
176 set_actions(shared_actions);
179 void PbrMaterial::Loader::init_actions()
181 Material::PropertyLoader<PbrMaterial>::init_actions();
182 add_property("base_color", &PbrMaterial::set_base_color, &PbrMaterial::set_base_color_map, true);
183 add_property("normal", &PbrMaterial::set_normal_map);
184 add_property("metalness", &PbrMaterial::set_metalness, &PbrMaterial::set_metalness_map);
185 add_property("roughness", &PbrMaterial::set_roughness, &PbrMaterial::set_roughness_map);
186 add_property("occlusion", &PbrMaterial::set_occlusion_map);
187 add_property("emission", &PbrMaterial::set_emission, &PbrMaterial::set_emission_map, false);