void LightsourcePass::render(const GraphicContextPtr &gc, GPUTimer &timer)
{
ScopeTimeFunction();
zminmax.viewport = inout.viewport;
zminmax.normal_z = inout.normal_z_gbuffer;
zminmax.minmax(gc);
update_buffers(gc);
//timer.begin_time(gc, "light(cull)");
gc->set_uniform_buffer(0, compute_uniforms);
gc->set_storage_buffer(0, compute_lights);
gc->set_storage_buffer(1, compute_visible_lights);
gc->set_texture(0, zminmax.result);
gc->set_texture(1, inout.normal_z_gbuffer);
gc->set_texture(2, inout.diffuse_color_gbuffer);
gc->set_texture(3, inout.specular_color_gbuffer);
gc->set_texture(4, inout.specular_level_gbuffer);
gc->set_texture(5, inout.shadow_maps);
gc->set_texture(6, inout.self_illumination_gbuffer);
gc->set_image_texture(0, inout.final_color);
gc->set_program_object(cull_tiles_program);
gc->dispatch((num_tiles_x + tile_size - 1) / tile_size, (num_tiles_y + tile_size - 1) / tile_size);
//timer.end_time(gc);
//timer.begin_time(gc, "light(render)");
gc->set_program_object(render_tiles_program);
gc->dispatch(num_tiles_x, num_tiles_y);
gc->reset_image_texture(0);
gc->reset_texture(6);
gc->reset_texture(5);
gc->reset_texture(4);
gc->reset_texture(3);
gc->reset_texture(2);
gc->reset_texture(1);
gc->reset_texture(0);
gc->reset_uniform_buffer(2);
gc->reset_uniform_buffer(1);
gc->reset_uniform_buffer(0);
//timer.end_time(gc);
}
void LightsourceSimplePass::render(const GraphicContextPtr &gc, GPUTimer &timer)
{
ScopeTimeFunction();
//timer.begin_time(gc, "light(simple)");
gc->set_frame_buffer(inout.fb_final_color);
gc->set_viewport(inout.viewport.size(), gc->texture_image_y_axis());
gc->set_depth_range(0.0f, 0.9f);
gc->set_uniform_buffer(0, uniforms);
gc->set_texture(0, light_instance_texture);
gc->set_texture(1, inout.normal_z_gbuffer);
gc->set_texture(2, inout.diffuse_color_gbuffer);
gc->set_texture(3, inout.specular_color_gbuffer);
gc->set_texture(4, inout.specular_level_gbuffer);
gc->set_texture(5, inout.shadow_maps);
gc->set_texture(6, inout.self_illumination_gbuffer);
gc->set_blend_state(blend_state);
gc->clear();
// To do: use icosahedron for smaller lights and when the camera is not inside the light influence sphere
// To do: combine multiple lights into the same rect pass to reduce overdraw penalty
gc->set_depth_stencil_state(rect_depth_stencil_state);
gc->set_rasterizer_state(rect_rasterizer_state);
gc->set_program_object(rect_light_program);
gc->set_primitives_array(rect_prim_array);
gc->draw_primitives_array_instanced(type_triangles, 0, 6, std::max(lights.size(), (size_t)1));
gc->reset_primitives_array();
/*
gc->set_depth_stencil_state(icosahedron_depth_stencil_state);
gc->set_rasterizer_state(icosahedron_rasterizer_state);
gc->set_program_object(icosahedron_light_program);
gc->set_primitives_array(icosahedron_prim_array);
gc->draw_primitives_elements_instanced(type_triangles, icosahedron->num_elements, icosahedron->elements, 0, lights.size());
gc->reset_primitives_array();
*/
gc->set_depth_stencil_state(icosahedron_depth_stencil_state);
gc->set_rasterizer_state(icosahedron_rasterizer_state);
gc->set_program_object(icosahedron_light_program);
gc->set_primitives_array(icosahedron_prim_array);
gc->draw_primitives_elements_instanced(type_triangles, icosahedron->num_elements, icosahedron->elements, type_unsigned_int, 0, lights.size());
gc->reset_primitives_array();
//timer.end_time(gc);
//timer.begin_time(gc, "light(simple)");
gc->reset_texture(6);
gc->reset_texture(5);
gc->reset_texture(4);
gc->reset_texture(3);
gc->reset_texture(2);
gc->reset_texture(1);
gc->reset_texture(0);
gc->reset_uniform_buffer(0);
//timer.end_time(gc);
}