void ZMinMax::minmax(const GraphicContextPtr &gc) { update_buffers(gc); normal_z->set_min_filter(filter_nearest); normal_z->set_mag_filter(filter_nearest); normal_z->set_wrap_mode(wrap_clamp_to_edge, wrap_clamp_to_edge); gc->set_primitives_array(prim_array); gc->set_program_object(program0); gc->set_blend_state(blend_state); Size texture_size = find_texture_size(normal_z); for (int i = 0; i < iterations; i++) { if (i == 1) gc->set_program_object(program1); int iteration_width = texture_size.width >> i; int iteration_height = texture_size.height >> i; gc->set_frame_buffer((i % 2 == 0) ? fb0 : fb1); gc->set_viewport(Size(iteration_width, iteration_height), gc->texture_image_y_axis()); if (i == 0) gc->set_texture(0, normal_z); else gc->set_texture(0, (i % 2 == 0) ? texture1 : texture0); gc->draw_primitives_array(type_triangles, 6); } gc->reset_texture(0); gc->reset_program_object(); gc->reset_primitives_array(); gc->reset_frame_buffer(); gc->set_viewport(viewport.size(), gc->texture_image_y_axis()); }
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); }