+#include "framebuffer.h"
+#include "mesh.h"
#include "pbrmaterial.h"
+#include "renderer.h"
+#include "resources.h"
+#include "texture2d.h"
using namespace std;
namespace Msp {
namespace GL {
+const Tag PbrMaterial::texture_tags[] =
+{
+ Tag("base_color_map"),
+ Tag("normal_map"),
+ Tag("metalness_map"),
+ Tag("roughness_map"),
+ Tag("occlusion_map"),
+ Tag("emission_map"),
+ Tag("fresnel_lookup"),
+ Tag()
+};
+
PbrMaterial::PbrMaterial():
- receive_shadows(false)
+ fresnel_lookup(get_or_create_fresnel_lookup()),
+ fresnel_sampler(Resources::get_global().get<Sampler>("_linear_clamp.samp"))
{
set_base_color(0.8f);
+ set_tint(1.0f);
set_metalness(0.0f);
set_roughness(0.5f);
set_emission(0.0f);
}
+const Texture2D &PbrMaterial::get_or_create_fresnel_lookup()
+{
+ Resources &resources = Resources::get_global();
+
+ static const string name = "_pbr_fresnel_lookup.tex";
+ Texture2D *fresnel_lookup = resources.find<Texture2D>(name);
+ if(fresnel_lookup)
+ return *fresnel_lookup;
+
+ fresnel_lookup = new Texture2D;
+ fresnel_lookup->storage(RG8, 128, 128, 1);
+ resources.add(name, fresnel_lookup);
+
+ const Program &shprog = resources.get<Program>("_pbr_fresnel_lookup.glsl.shader");
+ ProgramData shdata;
+ shdata.uniform("n_samples", 1024);
+ // Not actually used here, but put it in to satisfy the interface
+ shdata.uniform("roughness", 0.0f);
+
+ const Mesh &mesh = resources.get<Mesh>("_fullscreen_quad.mesh");
+ Framebuffer fresnel_lookup_fbo((COLOR_ATTACHMENT,RG8));
+ fresnel_lookup_fbo.attach(COLOR_ATTACHMENT, *fresnel_lookup);
+ Renderer renderer;
+ renderer.begin();
+ renderer.set_framebuffer(&fresnel_lookup_fbo);
+ renderer.set_shader_program(&shprog, &shdata);
+ mesh.draw(renderer);
+ renderer.end();
+
+ return *fresnel_lookup;
+}
+
void PbrMaterial::fill_program_info(string &module_name, map<string, int> &spec_values) const
{
- module_name = "cooktorrance.glsl";
+ module_name = "pbr_material.glsl";
spec_values["use_base_color_map"] = (base_color.texture!=0);
spec_values["use_normal_map"] = (normal.texture!=0);
spec_values["use_metalness_map"] = (metalness.texture!=0);
bool use_emission = (emission.texture || emission.value.r || emission.value.g || emission.value.b);
spec_values["use_emission"] = use_emission;
spec_values["use_emission_map"] = (emission.texture!=0);
- spec_values["use_shadow_map"] = receive_shadows;
}
-void PbrMaterial::attach_textures_to(Texturing &texturing, ProgramData &tex_shdata) const
+const Texture *PbrMaterial::get_texture(Tag tag) const
{
- attach_texture_to(base_color.texture, texturing, tex_shdata, "base_color_map");
- attach_texture_to(metalness.texture, texturing, tex_shdata, "metalness_map");
- attach_texture_to(roughness.texture, texturing, tex_shdata, "roughness_map");
- attach_texture_to(normal.texture, texturing, tex_shdata, "normal_map");
- attach_texture_to(occlusion.texture, texturing, tex_shdata, "occlusion_map");
- attach_texture_to(emission.texture, texturing, tex_shdata, "emission_map");
+ if(tag==texture_tags[0])
+ return base_color.texture;
+ else if(tag==texture_tags[1])
+ return normal.texture;
+ else if(tag==texture_tags[2])
+ return metalness.texture;
+ else if(tag==texture_tags[3])
+ return roughness.texture;
+ else if(tag==texture_tags[4])
+ return occlusion.texture;
+ else if(tag==texture_tags[5])
+ return emission.texture;
+ else if(tag==texture_tags[6])
+ return &fresnel_lookup;
+ else
+ return 0;
+}
+
+const Sampler *PbrMaterial::get_sampler(Tag tag) const
+{
+ if(tag==texture_tags[6])
+ return &fresnel_sampler;
+ else
+ return sampler;
}
void PbrMaterial::set_base_color(const Color &color)
base_color.texture = tex;
}
+void PbrMaterial::set_tint(const Color &color)
+{
+ tint.value = color;
+ shdata.uniform("pbr_material.tint", color);
+}
+
void PbrMaterial::set_normal_map(const Texture *tex)
{
normal.texture = tex;
emission.texture = tex;
}
-void PbrMaterial::set_receive_shadows(bool s)
-{
- receive_shadows = s;
-}
-
DataFile::Loader::ActionMap PbrMaterial::Loader::shared_actions;
-PbrMaterial::Loader::Loader(PbrMaterial &m):
- DerivedObjectLoader<PbrMaterial, Material::PropertyLoader<PbrMaterial> >(m)
-{
- set_actions(shared_actions);
-}
-
PbrMaterial::Loader::Loader(PbrMaterial &m, Collection &c):
DerivedObjectLoader<PbrMaterial, Material::PropertyLoader<PbrMaterial> >(m, c)
{
add_property("roughness", &PbrMaterial::set_roughness, &PbrMaterial::set_roughness_map);
add_property("occlusion", &PbrMaterial::set_occlusion_map);
add_property("emission", &PbrMaterial::set_emission, &PbrMaterial::set_emission_map, false);
- add("receive_shadows", &PbrMaterial::receive_shadows);
+ add_property("tint", &PbrMaterial::set_tint, 0, true);
}
} // namespace GL