lib/gamnit/depth/depth.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 # Framework for 3D games in Nit
  16 module depth
  17
  18 import flat
  19 intrude import more_materials
  20 import more_models
  21 import model_dimensions
  22 import particles
  23 import selection
  24 import shadow
  25
  26 redef class App
  27
  28         redef fun create_gamnit
  29         do
  30                 super
  31
  32                 # Move the camera back a bit
  33                 world_camera.reset_height(10.0)
  34                 world_camera.near = 0.1
  35
  36                 # Cull the invisible triangles in the back of the geometries
  37                 glCullFace gl_BACK
  38
  39                 # Prepare programs
  40                 var programs = [versatile_program, normals_program, explosion_program, smoke_program, static_program, selection_program: GamnitProgram]
  41                 for program in programs do
  42                         program.compile_and_link
  43                         var gamnit_error = program.error
  44                         assert gamnit_error == null else print_error gamnit_error
  45                 end
  46         end
  47
  48         redef fun frame_core_draw(display) do frame_core_depth display
  49
  50         # Draw all elements of `actors` and then call `frame_core_flat`
  51         protected fun frame_core_depth(display: GamnitDisplay)
  52         do
  53                 frame_core_depth_clock.lapse
  54
  55                 # Compute shadows
  56                 if light isa LightCastingShadows then
  57                         frame_core_shadow_prep display
  58                         perfs["gamnit depth shadows"].add frame_core_depth_clock.lapse
  59                 end
  60
  61                 glViewport(0, 0, display.width, display.height)
  62                 frame_core_dynamic_resolution_before display
  63                 perfs["gamnit depth dynres"].add frame_core_depth_clock.lapse
  64
  65                 for actor in actors do
  66                         for leaf in actor.model.leaves do
  67                                 leaf.material.draw(actor, leaf, app.world_camera)
  68                                 assert glGetError == gl_NO_ERROR else print_error "Gamnit error on material {leaf.material.class_name}"
  69                         end
  70                 end
  71                 perfs["gamnit depth actors"].add frame_core_depth_clock.lapse
  72
  73                 frame_core_world_sprites display
  74                 perfs["gamnit depth sprites"].add frame_core_depth_clock.lapse
  75
  76                 # Toggle writing to the depth buffer for particles effects
  77                 glDepthMask false
  78                 for system in particle_systems do
  79                         system.draw
  80                         assert glGetError == gl_NO_ERROR else print_error "OpenGL error in {system}"
  81                 end
  82                 glDepthMask true
  83                 perfs["gamnit depth particles"].add frame_core_depth_clock.lapse
  84
  85                 frame_core_ui_sprites display
  86                 perfs["gamnit depth ui_sprites"].add frame_core_depth_clock.lapse
  87
  88                 frame_core_dynamic_resolution_after display
  89
  90                 # Debug, show the light point of view
  91                 #frame_core_shadow_debug display
  92         end
  93
  94         private var frame_core_depth_clock = new Clock
  95 end