main: scene node instances

_math.lua

@@ -144,7 +144,7 @@ mat4 = {
    end,
 
    translation_from_vector = function(v)
-      return translation(v.f[0], v.f[1], v.f[2])
+      return mat4.translation(v.f[0], v.f[1], v.f[2])
    end,
 
    scaling = function(x, y, z)
@@ -172,7 +172,7 @@ mat4 = {
    end,
 
    scaling_from_vector = function(v)
-      return scaling(v.f[0], v.f[1], v.f[2])
+      return mat4.scaling(v.f[0], v.f[1], v.f[2])
    end,
 
    rotation_x = function(angle)
@@ -806,4 +806,5 @@ return {
    scalar = scalar,
    mat4 = mat4,
    vec3 = vec3,
+   vec4 = vec4,
 }

collada_types.lua

@@ -0,0 +1,79 @@
+local input_format = {
+   FLOAT1 = {},
+   FLOAT2 = {},
+   FLOAT3 = {},
+   FLOAT4 = {},
+   INT1 = {},
+   INT2 = {},
+   INT3 = {},
+   INT4 = {}
+}
+
+local light_type = {
+   AMBIENT = {},
+   DIRECTIONAL = {},
+   POINT = {},
+   SPOT = {}
+}
+
+local color_or_texture_type = {
+   COLOR = {},
+   TEXTURE = {}
+}
+
+local effect_type = {
+   BLINN = {},
+   LAMBERT = {},
+   PHONG = {},
+   CONSTANT = {}
+}
+
+local transform_type = {
+   LOOKAT = {},
+   MATRIX = {},
+   ROTATE = {},
+   SCALE = {},
+   SKEW = {},
+   TRANSLATE = {}
+}
+
+local node_type = {
+   JOINT = {},
+   NODE = {}
+}
+
+local interpolation = {
+   LINEAR = {},
+   BEZIER = {}
+}
+
+local target_attribute = {
+   A = {}, -- alpha color component
+   ANGLE = {}, -- euler angle
+   B = {}, -- blue color component
+   G = {}, -- green color component
+   P = {}, -- third texture component
+   Q = {}, -- fourth texture component
+   R = {}, -- red color component
+   S = {}, -- first texture coordinate
+   T = {}, -- second texture coordinate
+   TIME = {}, -- time in seconds
+   U = {}, -- first generic parameter
+   V = {}, -- second generic parameter
+   W = {}, -- fourth cartesian coordinate
+   X = {}, -- first cartesian coordinate
+   Y = {}, -- second cartesian coordinate
+   Z = {}, -- third cartesian coordinate
+   ALL = {}
+}
+
+return {
+   input_format = input_format,
+   light_type = light_type,
+   color_or_texture_type = color_or_texture_type,
+   effect_type = effect_type,
+   transform_type = transform_type,
+   node_type = node_type,
+   interpolation = interpolation,
+   target_attribute = target_attribute,
+}

main.lua

@@ -1,4 +1,3 @@
-local mesh
 local rotation
 local texture
 
@@ -6,12 +5,17 @@ local ffi = require 'ffi'
 local _math = require '_math'
 local mat4 = _math.mat4
 local vec3 = _math.vec3
+local vec4 = _math.vec4
+local scalar = _math.scalar
+local scene_test = require 'scene.test.test'
+local collada_types = require 'collada_types'
 
 local pixelcode = [[
     #pragma language glsl3
 
     varying vec4 PixelNormal;
     varying vec4 PixelTexture;
+    varying float PixelId;
 
     uniform sampler2D texture_sampler;
 
@@ -37,11 +41,13 @@ local vertexcode = [[
 
     varying vec4 PixelNormal;
     varying vec4 PixelTexture;
+    varying float PixelId;
 
     void vertexmain()
     {
         PixelNormal = VertexNormal * 0.5 + 0.5;
         PixelTexture = VertexTexture;
+        PixelId = float(gl_VertexID) / (4800 * 3);
         love_Position = transform * vec4(VertexPosition.xyz, 1);
     }
 ]]
@@ -54,48 +60,146 @@ local vertexformat = {
    { name = 'VertexTexture', format = 'floatvec3', location = 2 },
 }
 
+function pnt_attribute_list(vertex_buffer, offset)
+   return {
+      {
+         buffer = vertex_buffer,
+         location = 0,
+         name = "VertexPosition",
+         nameinbuffer = nil,
+         step = "pervertex",
+         startindex = 1 + offset,
+      },
+      {
+         buffer = vertex_buffer,
+         location = 1,
+         name = "VertexNormal",
+         nameinbuffer = nil,
+         step = "pervertex",
+         startindex = 1 + offset,
+      },
+      {
+         buffer = vertex_buffer,
+         location = 2,
+         name = "VertexTexture",
+         nameinbuffer = nil,
+         step = "pervertex",
+         startindex = 1 + offset,
+      },
+   }
+end
+
+local geometries_meshes = {}
+
+function load_geometries(vertex_buffer, index_buffer, geometries)
+   for _, geometry in ipairs(geometries) do
+      local offset = geometry.mesh.vertex_buffer_offset / (4 * 3 * 3)
+      local attribute_list = pnt_attribute_list(vertex_buffer, offset)
+
+      local draw_mode = "triangles"
+      local mesh = love.graphics.newMesh(attribute_list, draw_mode)
+      mesh:setIndexBuffer(index_buffer)
+
+      geometries_meshes[geometry] = mesh
+   end
+end
+
+
+local node_instances = {}
+
+function node_world_transform(node)
+   local world
+   if node.parent_index >= 0 then
+      world = node_instances[node.parent_index].world
+      assert(world ~= nil)
+   else
+      world = mat4.identity()
+   end
+
+   for _, transform in ipairs(node.transforms) do
+      local m
+      if transform.type == collada_types.transform_type.LOOKAT then
+         assert(false)
+      elseif transform.type == collada_types.transform_type.MATRIX then
+         m = mat4.load_table(transform.matrix)
+      elseif transform.type == collada_types.transform_type.ROTATE then
+         local rotate = vec4.load_table(transform.rotate)
+         local w = rotate.f[3]
+         m = mat4.rotation_axis(rotate, scalar.convert_to_radians(w))
+      elseif transform.type == collada_types.transform_type.SCALE then
+         m = mat4.scaling_from_vector(vec3.load_table(transform.scale))
+      elseif transform.type == collada_types.transform_type.TRANSLATE then
+         m = mat4.translation_from_vector(vec3.load_table(transform.translate))
+      else
+         assert(false)
+      end
+
+      world = m * world
+   end
+   return world
+end
+
+function load_node_world_transforms(nodes)
+   local node_index = 0
+   for _, node in ipairs(nodes) do
+      world = node_world_transform(node)
+      node_instances[node_index] = { world = world }
+      node_index = node_index + 1
+   end
+end
+
 function love.load(args)
    love.window.setMode(1024, 1024, {depth=true})
 
-   local vertexdata = love.filesystem.newFileData("position_normal_texture.vtx")
+   local vertex_data = love.filesystem.newFileData("scene/test/test.vtx")
-   local indexdata = love.filesystem.newFileData("index.idx")
+   local index_data = love.filesystem.newFileData("scene/test/test.idx")
 
-   local vertexbuffer = love.graphics.newBuffer(vertexformat, vertexdata, { vertex = true, usage = "static" })
+   local vertex_buffer = love.graphics.newBuffer(vertexformat, vertex_data, { vertex = true, usage = "static" })
-   local indexbuffer = love.graphics.newBuffer("uint32", indexdata, { index = true, usage = "static" })
+   local index_buffer = love.graphics.newBuffer("uint32", index_data, { index = true, usage = "static" })
 
-   attributelist = {
+   load_geometries(vertex_buffer, index_buffer, scene_test.descriptor.geometries)
-      {
+   load_node_world_transforms(scene_test.descriptor.nodes)
-         buffer = vertexbuffer,
-         location = 0,
-         name = "VertexPosition", -- the name this vertex attribute will use in a shader
-         nameinbuffer = nil, -- the name of the attribute in the vertex buffer. Defaults to the name field.
-         step = "pervertex", -- vertex attribute step ("pervertex" or "perinstance"), defaults to "pervertex".
-         startindex = 1, -- 1-based array index within the given vertex buffer where the attribute data will start being pulled from during rendering. Defaults to 1.
-      },
-{
-         buffer = vertexbuffer,
-         location = 1,
-         name = "VertexNormal", -- the name this vertex attribute will use in a shader
-         nameinbuffer = nil, -- the name of the attribute in the vertex buffer. Defaults to the name field.
-         step = "pervertex", -- vertex attribute step ("pervertex" or "perinstance"), defaults to "pervertex".
-         startindex = 1, -- 1-based array index within the given vertex buffer where the attribute data will start being pulled from during rendering. Defaults to 1.
-      },
-      {
-         buffer = vertexbuffer,
-         location = 2,
-         name = "VertexTexture", -- the name this vertex attribute will use in a shader
-         nameinbuffer = nil, -- the name of the attribute in the vertex buffer. Defaults to the name field.
-         step = "pervertex", -- vertex attribute step ("pervertex" or "perinstance"), defaults to "pervertex".
-         startindex = 1, -- 1-based array index within the given vertex buffer where the attribute data will start being pulled from during rendering. Defaults to 1.
-      },
-   }
-   drawmode = "triangles"
 
-   mesh = love.graphics.newMesh(attributelist, drawmode)
+   local image_data = love.image.newCompressedData('bird.dds')
-   mesh:setIndexBuffer(indexbuffer)
+   texture = love.graphics.newTexture(image_data)
+end
 
-  local image_data = love.image.newCompressedData('bird.dds')
+function draw_geometry(geometry)
-  texture = love.graphics.newTexture(image_data)
+   local base_index_buffer_offset = geometry.mesh.index_buffer_offset / 4
+
+   local mesh = geometries_meshes[geometry]
+   for triangle_index, triangles in pairs(geometry.mesh.triangles) do
+      local index_offset = base_index_buffer_offset + triangles.index_offset
+      local index_count = triangles.count * 3
+      mesh:setDrawRange(1 + index_offset, index_count)
+      love.graphics.draw(mesh, 0, 0, 0, 0, 0)
+   end
+end
+
+function draw_node(node_index, node, transform)
+   if node.type ~= collada_types.node_type.NODE then
+      return
+   end
+
+   if node.instance_geometries_count == 0 and node.instance_controllers_count == 0 then
+      return
+   end
+
+   local world = node_instances[node_index].world
+   transform = world * transform
+   shader:send("transform", "column", transform.data)
+
+   for _, instance_geometry in ipairs(node.instance_geometries) do
+      draw_geometry(instance_geometry.geometry)
+   end
+end
+
+function draw_nodes(nodes, transform)
+   local node_index = 0
+   for _, node in ipairs(nodes) do
+      draw_node(node_index, node, transform)
+      node_index = node_index + 1
+   end
 end
 
 local rotation = 0.0
@@ -105,36 +209,27 @@ function love.draw()
    local mx, my = love.mouse.getPosition()
 
    width, height = love.graphics.getDimensions()
-   -- shader:send("projection", "column", mat4.perspective_rh(width / width * 0.25,
-   --                                                         height / width * 0.25,
-   --                                                         0.1,
-   --                                                         1000.0).data)
-   -- shader:send("view", "column", mat4.look_at_rh(vec3(0, -2, 0),
-   --                                               vec3(0, 0, 0),
-   --                                               vec3(0, 0, 1)).data)
 
-   -- shader:send("model", "column", mat4.rotation_x(rotation).data)
+   local projection = mat4.perspective_rh(width / width * 0.1,
-   -- shader:send("model2", "column", mat4.rotation_z(rotation * 0.5).data)
+                                          height / width * 0.1,
-
-   local projection = mat4.perspective_rh(width / width * 0.25,
-                                          height / width * 0.25,
                                           0.1,
                                           1000.0)
-   local view = mat4.look_at_rh(vec3(0, -2, 0),
+   local view = mat4.look_at_rh(vec3(-88.57101, -71.71298, 104.5738),
-                                vec3(0, 0, 0),
+                                vec3(-19.90239, -27.72767, 54.6898),
                                 vec3(0, 0, 1))
 
    local world1 = mat4.rotation_x(rotation)
    local world2 = mat4.rotation_z(rotation * 0.5)
-   local world3 = mat4.translation(0, 0, -0.5)
+   --local world3 = mat4.translation(0, 0, -0.5)
 
-   local transform = world3 * world2 * world1 * view * projection
+   local transform = view * projection
-
-   shader:send("transform", "column", transform.data)
 
    shader:send("texture_sampler", texture)
+
    rotation = rotation + 0.01
+
    love.graphics.setShader(shader)
    love.graphics.setDepthMode("less", true)
-   love.graphics.draw(mesh, mx, my, 0, radius, radius)
+
+   draw_nodes(scene_test.descriptor.nodes, transform)
 end

scene/test/test.lua

@@ -0,0 +1,610 @@
+local collada_types = require 'collada_types'
+
+local camera_camera_camera = {
+  xfov = 45.0,
+  yfov = 0.0,
+  znear = 1.0,
+  zfar = 1000.0,
+  aspect_ratio = 0.0,
+}
+local light_environmentambientlight = {
+  type = collada_types.light_type.AMBIENT,
+  color = {0.0, 0.0, 0.0},
+}
+local images = {
+}
+local effect_coloreffectr228g184b153 = {
+  type = collada_types.effect_type.PHONG,
+  phong = {
+    emission = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.0, 0.0, 0.0, 0.0},
+    },
+    ambient = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.8941176, 0.7215686, 0.6, 1.0},
+    },
+    diffuse = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.8941176, 0.7215686, 0.6, 1.0},
+    },
+    specular = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {1.0, 1.0, 1.0, 1.0},
+    },
+    shininess = 10.0,
+    reflective = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.0, 0.0, 0.0, 1.0},
+    },
+    reflectivity = 0.0,
+    transparent = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {1.0, 1.0, 1.0, 1.0},
+    },
+    transparency = 1.0,
+    index_of_refraction = 0.0,
+  }
+}
+local effect_coloreffectr153g228b184 = {
+  type = collada_types.effect_type.PHONG,
+  phong = {
+    emission = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.0, 0.0, 0.0, 0.0},
+    },
+    ambient = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.6, 0.8941176, 0.7215686, 1.0},
+    },
+    diffuse = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.6, 0.8941176, 0.7215686, 1.0},
+    },
+    specular = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {1.0, 1.0, 1.0, 1.0},
+    },
+    shininess = 10.0,
+    reflective = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.0, 0.0, 0.0, 1.0},
+    },
+    reflectivity = 0.0,
+    transparent = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {1.0, 1.0, 1.0, 1.0},
+    },
+    transparency = 1.0,
+    index_of_refraction = 0.0,
+  }
+}
+local effect_coloreffectr177g26b88 = {
+  type = collada_types.effect_type.PHONG,
+  phong = {
+    emission = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.0, 0.0, 0.0, 0.0},
+    },
+    ambient = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.6941176, 0.1019608, 0.345098, 1.0},
+    },
+    diffuse = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.6941176, 0.1019608, 0.345098, 1.0},
+    },
+    specular = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {1.0, 1.0, 1.0, 1.0},
+    },
+    shininess = 10.0,
+    reflective = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.0, 0.0, 0.0, 1.0},
+    },
+    reflectivity = 0.0,
+    transparent = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {1.0, 1.0, 1.0, 1.0},
+    },
+    transparency = 1.0,
+    index_of_refraction = 0.0,
+  }
+}
+local effect_coloreffectr5g54b179 = {
+  type = collada_types.effect_type.PHONG,
+  phong = {
+    emission = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.0, 0.0, 0.0, 0.0},
+    },
+    ambient = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.01960784, 0.2117647, 0.7019608, 1.0},
+    },
+    diffuse = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.01960784, 0.2117647, 0.7019608, 1.0},
+    },
+    specular = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {1.0, 1.0, 1.0, 1.0},
+    },
+    shininess = 10.0,
+    reflective = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {0.0, 0.0, 0.0, 1.0},
+    },
+    reflectivity = 0.0,
+    transparent = {
+      type = collada_types.color_or_texture_type.COLOR,
+      color = {1.0, 1.0, 1.0, 1.0},
+    },
+    transparency = 1.0,
+    index_of_refraction = 0.0,
+  }
+}
+local material_coloreffectr228g184b153_material = {
+  effect = effect_coloreffectr228g184b153,
+}
+local material_coloreffectr153g228b184_material = {
+  effect = effect_coloreffectr153g228b184,
+}
+local material_coloreffectr177g26b88_material = {
+  effect = effect_coloreffectr177g26b88,
+}
+local material_coloreffectr5g54b179_material = {
+  effect = effect_coloreffectr5g54b179,
+}
+local input_elements_position_0_3_normal_0_3_texcoord_0_3 = {
+  {
+    semantic = "POSITION",
+    semantic_index = 0,
+    format = collada_types.input_format.FLOAT3,
+  },
+  {
+    semantic = "NORMAL",
+    semantic_index = 0,
+    format = collada_types.input_format.FLOAT3,
+  },
+  {
+    semantic = "TEXCOORD",
+    semantic_index = 0,
+    format = collada_types.input_format.FLOAT3,
+  },
+}
+local triangles_geom_plane = {
+  {
+    count = 20000, -- triangles
+    index_offset = 0, -- indices
+    inputs_index = 0, -- index into inputs_list
+  },
+}
+local geometry_geom_plane = {
+  mesh = {
+    triangles = triangles_geom_plane,
+    triangles_count = 1,
+
+    vertex_buffer_offset = 0,
+    vertex_buffer_size = 367236,
+
+    index_buffer_offset = 0,
+    index_buffer_size = 240000,
+  }
+}
+local triangles_geom_torus_knot23 = {
+  {
+    count = 4800, -- triangles
+    index_offset = 0, -- indices
+    inputs_index = 0, -- index into inputs_list
+  },
+}
+local geometry_geom_torus_knot23 = {
+  mesh = {
+    triangles = triangles_geom_torus_knot23,
+    triangles_count = 1,
+
+    vertex_buffer_offset = 367236,
+    vertex_buffer_size = 94068,
+
+    index_buffer_offset = 240000,
+    index_buffer_size = 57600,
+  }
+}
+local triangles_geom_torusknot25 = {
+  {
+    count = 2400, -- triangles
+    index_offset = 0, -- indices
+    inputs_index = 0, -- index into inputs_list
+  },
+}
+local geometry_geom_torusknot25 = {
+  mesh = {
+    triangles = triangles_geom_torusknot25,
+    triangles_count = 1,
+
+    vertex_buffer_offset = 461304,
+    vertex_buffer_size = 86832,
+
+    index_buffer_offset = 297600,
+    index_buffer_size = 28800,
+  }
+}
+local geometries = {
+  geometry_geom_plane,
+  geometry_geom_torus_knot23,
+  geometry_geom_torusknot25,
+}
+local transforms_node_environmentambientlight = {
+}
+local instance_geometries_node_environmentambientlight = {
+}
+local instance_controllers_node_environmentambientlight = {
+}
+local instance_lights_node_environmentambientlight = {
+  {
+    light = light_environmentambientlight,
+  }
+}
+local node_channels_node_environmentambientlight = {
+}
+local node_node_environmentambientlight = {
+  parent_index = -1,
+
+  type = collada_types.node_type.NODE,
+
+  transforms = transforms_node_environmentambientlight,
+  transforms_count = 0,
+
+  instance_geometries = instance_geometries_node_environmentambientlight,
+  instance_geometries_count = 0,
+
+  instance_controllers = instance_controllers_node_environmentambientlight,
+  instance_controllers_count = 0,
+
+  instance_lights = instance_lights_node_environmentambientlight,
+  instance_lights_count = 1,
+
+  channels = node_channels_node_environmentambientlight,
+  channels_count = 0,
+}
+local transforms_node_plane = {
+}
+local instance_geometry_instance_materials_node_plane_0 = {
+  {
+    element_index = 0, -- an index into mesh.triangles
+    material = material_coloreffectr228g184b153_material,
+
+    emission = { input_set = -1 },
+    ambient = { input_set = -1 },
+    diffuse = { input_set = -1 },
+    specular = { input_set = -1 },
+  },
+}
+local instance_geometries_node_plane = {
+  {
+    geometry = geometry_geom_plane,
+
+    instance_materials = instance_geometry_instance_materials_node_plane_0,
+    instance_materials_count = 1,
+  },
+}
+local instance_controllers_node_plane = {
+}
+local instance_lights_node_plane = {
+}
+local node_channels_node_plane = {
+}
+local node_node_plane = {
+  parent_index = -1,
+
+  type = collada_types.node_type.NODE,
+
+  transforms = transforms_node_plane,
+  transforms_count = 0,
+
+  instance_geometries = instance_geometries_node_plane,
+  instance_geometries_count = 1,
+
+  instance_controllers = instance_controllers_node_plane,
+  instance_controllers_count = 0,
+
+  instance_lights = instance_lights_node_plane,
+  instance_lights_count = 0,
+
+  channels = node_channels_node_plane,
+  channels_count = 0,
+}
+local transforms_node_torus_knot23 = {
+  {
+    type = collada_types.transform_type.TRANSLATE,
+    translate = {-21.94384, -1.68812e-14, 45.45129},
+  },
+  {
+    type = collada_types.transform_type.ROTATE,
+    rotate = {-1.0, -2.22051e-16, -2.22051e-16, -90.0},
+  },
+  {
+    type = collada_types.transform_type.SCALE,
+    scale = {0.5458366, 0.5458366, 0.5458366},
+  },
+}
+local instance_geometry_instance_materials_node_torus_knot23_0 = {
+  {
+    element_index = 0, -- an index into mesh.triangles
+    material = material_coloreffectr153g228b184_material,
+
+    emission = { input_set = -1 },
+    ambient = { input_set = -1 },
+    diffuse = { input_set = -1 },
+    specular = { input_set = -1 },
+  },
+}
+local instance_geometries_node_torus_knot23 = {
+  {
+    geometry = geometry_geom_torus_knot23,
+
+    instance_materials = instance_geometry_instance_materials_node_torus_knot23_0,
+    instance_materials_count = 1,
+  },
+}
+local instance_controllers_node_torus_knot23 = {
+}
+local instance_lights_node_torus_knot23 = {
+}
+local node_channels_node_torus_knot23 = {
+}
+local node_node_torus_knot23 = {
+  parent_index = -1,
+
+  type = collada_types.node_type.NODE,
+
+  transforms = transforms_node_torus_knot23,
+  transforms_count = 3,
+
+  instance_geometries = instance_geometries_node_torus_knot23,
+  instance_geometries_count = 1,
+
+  instance_controllers = instance_controllers_node_torus_knot23,
+  instance_controllers_count = 0,
+
+  instance_lights = instance_lights_node_torus_knot23,
+  instance_lights_count = 0,
+
+  channels = node_channels_node_torus_knot23,
+  channels_count = 0,
+}
+local transforms_node_torusknot25 = {
+  {
+    type = collada_types.transform_type.TRANSLATE,
+    translate = {3.281013, -28.30101, 45.45129},
+  },
+  {
+    type = collada_types.transform_type.ROTATE,
+    rotate = {0.9075136, -0.007434183, 0.4199569, -178.1592},
+  },
+  {
+    type = collada_types.transform_type.ROTATE,
+    rotate = {0.9893375, 0.0, 0.1456411, -1.382112},
+  },
+  {
+    type = collada_types.transform_type.SCALE,
+    scale = {0.5458366, 0.5458367, 0.5458366},
+  },
+  {
+    type = collada_types.transform_type.ROTATE,
+    rotate = {0.9893375, 0.0, 0.1456411, 1.382112},
+  },
+}
+local instance_geometry_instance_materials_node_torusknot25_0 = {
+  {
+    element_index = 0, -- an index into mesh.triangles
+    material = material_coloreffectr177g26b88_material,
+
+    emission = { input_set = -1 },
+    ambient = { input_set = -1 },
+    diffuse = { input_set = -1 },
+    specular = { input_set = -1 },
+  },
+}
+local instance_geometries_node_torusknot25 = {
+  {
+    geometry = geometry_geom_torusknot25,
+
+    instance_materials = instance_geometry_instance_materials_node_torusknot25_0,
+    instance_materials_count = 1,
+  },
+}
+local instance_controllers_node_torusknot25 = {
+}
+local instance_lights_node_torusknot25 = {
+}
+local node_channels_node_torusknot25 = {
+}
+local node_node_torusknot25 = {
+  parent_index = -1,
+
+  type = collada_types.node_type.NODE,
+
+  transforms = transforms_node_torusknot25,
+  transforms_count = 5,
+
+  instance_geometries = instance_geometries_node_torusknot25,
+  instance_geometries_count = 1,
+
+  instance_controllers = instance_controllers_node_torusknot25,
+  instance_controllers_count = 0,
+
+  instance_lights = instance_lights_node_torusknot25,
+  instance_lights_count = 0,
+
+  channels = node_channels_node_torusknot25,
+  channels_count = 0,
+}
+local transforms_node_camerahelper = {
+  {
+    type = collada_types.transform_type.TRANSLATE,
+    translate = {-88.57101, -71.71298, 104.5738},
+  },
+}
+local instance_geometries_node_camerahelper = {
+}
+local instance_controllers_node_camerahelper = {
+}
+local instance_lights_node_camerahelper = {
+}
+local node_channels_node_camerahelper = {
+}
+local node_node_camerahelper = {
+  parent_index = -1,
+
+  type = collada_types.node_type.NODE,
+
+  transforms = transforms_node_camerahelper,
+  transforms_count = 1,
+
+  instance_geometries = instance_geometries_node_camerahelper,
+  instance_geometries_count = 0,
+
+  instance_controllers = instance_controllers_node_camerahelper,
+  instance_controllers_count = 0,
+
+  instance_lights = instance_lights_node_camerahelper,
+  instance_lights_count = 0,
+
+  channels = node_channels_node_camerahelper,
+  channels_count = 0,
+}
+local transforms_node_camera = {
+  {
+    type = collada_types.transform_type.MATRIX,
+    matrix = {0.5124585, -0.8587118, -3.72529e-08, 0.0, 0.4546754, 0.2713395, 0.848319, 0.0, -0.7284616, -0.4347285, 0.5294855, 0.0, -5.03627, 0.0, 3.688698, 1.0},
+  },
+}
+local instance_geometries_node_camera = {
+}
+local instance_controllers_node_camera = {
+}
+local instance_lights_node_camera = {
+}
+local node_channels_node_camera = {
+}
+local node_node_camera = {
+  parent_index = 4,
+
+  type = collada_types.node_type.NODE,
+
+  transforms = transforms_node_camera,
+  transforms_count = 1,
+
+  instance_geometries = instance_geometries_node_camera,
+  instance_geometries_count = 0,
+
+  instance_controllers = instance_controllers_node_camera,
+  instance_controllers_count = 0,
+
+  instance_lights = instance_lights_node_camera,
+  instance_lights_count = 0,
+
+  channels = node_channels_node_camera,
+  channels_count = 0,
+}
+local transforms_node_cameratargethelper = {
+  {
+    type = collada_types.transform_type.TRANSLATE,
+    translate = {-19.90239, -27.72767, 54.6898},
+  },
+}
+local instance_geometries_node_cameratargethelper = {
+}
+local instance_controllers_node_cameratargethelper = {
+}
+local instance_lights_node_cameratargethelper = {
+}
+local node_channels_node_cameratargethelper = {
+}
+local node_node_cameratargethelper = {
+  parent_index = -1,
+
+  type = collada_types.node_type.NODE,
+
+  transforms = transforms_node_cameratargethelper,
+  transforms_count = 1,
+
+  instance_geometries = instance_geometries_node_cameratargethelper,
+  instance_geometries_count = 0,
+
+  instance_controllers = instance_controllers_node_cameratargethelper,
+  instance_controllers_count = 0,
+
+  instance_lights = instance_lights_node_cameratargethelper,
+  instance_lights_count = 0,
+
+  channels = node_channels_node_cameratargethelper,
+  channels_count = 0,
+}
+local transforms_node_camera_target = {
+}
+local instance_geometries_node_camera_target = {
+}
+local instance_controllers_node_camera_target = {
+}
+local instance_lights_node_camera_target = {
+}
+local node_channels_node_camera_target = {
+}
+local node_node_camera_target = {
+  parent_index = 6,
+
+  type = collada_types.node_type.NODE,
+
+  transforms = transforms_node_camera_target,
+  transforms_count = 0,
+
+  instance_geometries = instance_geometries_node_camera_target,
+  instance_geometries_count = 0,
+
+  instance_controllers = instance_controllers_node_camera_target,
+  instance_controllers_count = 0,
+
+  instance_lights = instance_lights_node_camera_target,
+  instance_lights_count = 0,
+
+  channels = node_channels_node_camera_target,
+  channels_count = 0,
+}
+local nodes = {
+  node_node_environmentambientlight, -- 0
+  node_node_plane, -- 1
+  node_node_torus_knot23, -- 2
+  node_node_torusknot25, -- 3
+  node_node_camerahelper, -- 4
+  node_node_camera, -- 5
+  node_node_cameratargethelper, -- 6
+  node_node_camera_target, -- 7
+}
+local inputs_list = {
+  {
+    elements = input_elements_position_0_3_normal_0_3_texcoord_0_3,
+    elements_count = 3,
+  },
+}
+local descriptor = {
+  nodes = nodes,
+  nodes_count = #nodes,
+
+  geometries = geometries,
+  nodes_count = #geometries,
+
+  inputs_list = inputs_list,
+  inputs_list_count = #inputs_list,
+
+  images = images,
+  images_count = #images,
+
+}
+
+return {
+  descriptor = descriptor
+}

scene/test/test.rc

@@ -0,0 +1,4 @@
+RES_SCENES_TEST_VTX RCDATA "test.vtx"
+RES_SCENES_TEST_VJW RCDATA "test.vjw"
+RES_SCENES_TEST_IDX RCDATA "test.idx"
+