+
+ // debug
+#ifdef DRAW_NORMALS
+ if(nprog) {
+ int loc = nprog->get_uniform_location("mmviewproj");
+ if(loc != -1) {
+ nprog->set_uniform_matrix(loc, mmviewproj);
+ }
+ nprog->use();
+ object->mesh->draw_normals(1.0);
+ }
+#endif
+}
+
+void Renderer::set_sky_tex(Texture *stex)
+{
+ if(!skymesh) {
+ skymesh = gfx_create_mesh();
+ gen_geosphere(skymesh, 1, 0);
+ }
+ if(!skyprog) {
+ if(!(skyprog = sdr_man->create_shader_program("sky.v.glsl", "sky.f.glsl")))
+ return;
+ if((viewproj_loc = skyprog->get_uniform_location("mviewproj") == -1))
+ return;
+ }
+ skytex = stex;
+}
+
+void Renderer::set_diffuse_sky_tex(Texture *dstex)
+{
+ dskytex = dstex;
+}
+
+void Renderer::draw_skybox() const
+{
+ if(!skymesh || !skytex)
+ return;
+
+ gfx_zbuffer(false);
+ gfx_cull_face(GFX_CULL_NONE);
+
+ skytex->bind();
+ skyprog->use();
+
+ Mat4 mviewproj;
+ mviewproj = camera->get_view_matrix().upper3x3() * mprojection;
+ skyprog->set_uniform_matrix(viewproj_loc, mviewproj);
+
+ skymesh->draw();
+
+ gfx_cull_face(GFX_CULL_BACK);
+ gfx_zbuffer(true);