Shader Programs
===============
Name                         Render                                When not defined use
========================================================================================
<none>                       gui, menus                            <none>
--- Shadow map ---
shadow                       everything in shadow pass             <none>
shadow_solid                 <not used>                            shadow
shadow_cutout                <not used>                            shadow
--- GBuffers ---
gbuffers_basic               leash, block selection box            <none>
gbuffers_textured            particles                             gbuffers_basic
gbuffers_textured_lit        lit_particles, world border           gbuffers_textured
gbuffers_skybasic            sky, horizon, stars, void             gbuffers_basic
gbuffers_skytextured         sun, moon                             gbuffers_textured
gbuffers_clouds              clouds                                gbuffers_textured
gbuffers_terrain             solid, cutout, cutout_mip             gbuffers_textured_lit
gbuffers_terrain_solid       <not used>                            gbuffers_terrain
gbuffers_terrain_cutout_mip  <not used>                            gbuffers_terrain
gbuffers_terrain_cutout      <not used>                            gbuffers_terrain
gbuffers_damagedblock        damaged_blocks                        gbuffers_terrain
gbuffers_block               block_entities                        gbuffers_terrain
gbuffers_beaconbeam          beacon beam                           gbuffers_textured
gbuffers_item                <not used>                            gbuffers_textured_lit
gbuffers_entities            entities                              gbuffers_textured_lit
gbuffers_armor_glint         glint on armor and handheld items     gbuffers_textured
gbuffers_spidereyes          eyes of spider, enderman and dragon   gbuffers_textured
gbuffers_hand                hand and opaque handheld objects      gbuffers_textured_lit
gbuffers_weather             rain, snow                            gbuffers_textured_lit
--- Deferred ---
deferred                     <deferred>                            <none>
deferred1                    <deferred>                            <none>
...
deferred15                   <deferred>                            <none>
deferred_last                <internal> restore ping-pong buffers  <none>
--- GBuffers translucent ---
gbuffers_water               translucent                           gbuffers_terrain
gbuffers_hand_water          translucent handheld objects          gbuffers_hand
--- Composite ---
composite                    <composite>                           <none>
composite1                   <composite>                           <none>
...
composite15                  <composite>                           <none>
composite_last               <internal> restore ping-pong buffers  <none>
--- Final ---
final                        <final>                               <none>

Remarks:
 - The programs shadow_solid, shadow_cutout, gbuffers_terrain_solid, gbuffers_terrain_cutout and gbuffers_terrain_cutout_mip are not used

Todo:
 - Separate programs for world border, entities (by id, by type), cape, elytra, wolf collar, etc.