3 #include "environmentmap.h"
13 EnvironmentMap::EnvironmentMap(Resources &resources, unsigned s, Renderable &r, Renderable &e):
16 sampler(resources.get<Sampler>("_linear_clamp.samp"))
21 EnvironmentMap::EnvironmentMap(Resources &resources, unsigned s, PixelFormat f, Renderable &r, Renderable &e):
24 sampler(resources.get<Sampler>("_linear_clamp.samp"))
29 void EnvironmentMap::init(unsigned s, PixelFormat f)
36 env_tex.storage(f, size);
37 depth_buf.storage(DEPTH_COMPONENT32F, size, size);
38 for(unsigned i=0; i<6; ++i)
40 TextureCubeFace face = TextureCube::enumerate_faces(i);
41 faces[i].fbo.attach(COLOR_ATTACHMENT0, env_tex, face, 0);
42 faces[i].fbo.attach(DEPTH_ATTACHMENT, depth_buf);
43 faces[i].fbo.require_complete();
44 faces[i].camera.set_look_direction(TextureCube::get_face_direction(face));
45 faces[i].camera.set_up_direction(TextureCube::get_t_direction(face));
46 faces[i].camera.set_field_of_view(Geometry::Angle<float>::right());
47 faces[i].camera.set_aspect_ratio(1);
48 faces[i].camera.set_depth_clip(0.1, 100);
52 void EnvironmentMap::set_depth_clip(float n, float f)
54 for(unsigned i=0; i<6; ++i)
55 faces[i].camera.set_depth_clip(n, f);
58 void EnvironmentMap::set_update_interval(unsigned i)
61 update_delay = min(update_delay, update_interval-1);
64 void EnvironmentMap::queue_update()
69 void EnvironmentMap::setup_frame(Renderer &renderer)
75 renderable.setup_frame(renderer);
83 update_delay = update_interval-1;
84 environment.setup_frame(renderer);
86 const Matrix *matrix = renderable.get_matrix();
90 Renderer::Push push(renderer);
91 Renderer::Exclude exclude1(renderer, renderable);
92 Renderer::Exclude exclude2(renderer, *this);
94 Vector3 center = matrix->column(3).slice<3>(0);
96 BindRestore bind_fbo(faces[0].fbo);
97 for(unsigned i=0; i<6; ++i)
99 faces[i].camera.set_position(center);
101 faces[i].fbo.clear();
102 renderer.set_camera(faces[i].camera);
103 renderer.render(environment);
107 void EnvironmentMap::finish_frame()
112 renderable.finish_frame();
113 environment.finish_frame();
117 void EnvironmentMap::render(Renderer &renderer, Tag tag) const
119 if(!enabled_passes.count(tag))
120 return renderer.render(renderable, tag);
122 Renderer::Push _push_rend(renderer);
124 const Matrix &camera_matrix = renderer.get_camera()->get_object_matrix();
125 shdata.uniform("env_eye_matrix", camera_matrix.block<3, 3>(0, 0));
127 renderer.set_texture("environment_map", &env_tex, &sampler);
128 renderer.add_shader_data(shdata);
129 renderer.render(renderable, tag);