Simple Cornell box. No area light, just a point for now.

Cornell point light

Composer format 2.1 ascii
camera {
  position 0 0 -4
  viewDirection 0 0 1
  focalDistance 20
  orthoUp 0 1 0
  verticalFOV 0.7142857143
}
point_light {
  position 0 0.7 0
  color 1 1 1
}

sphere {
  name "near_right"
  numMaterials 1
  material {
    diffColor 0.56 0.35 0.14
    ambColor 0.2 0.2 0.2
    specColor 0 0 0
    emisColor 0 0 0
    shininess 0.2
    ktran 0
  }
  origin -0.4 -0.7 -0.40
  radius 0.3
  xaxis 1 0 0
  xlength 0.3
  yaxis 0 1 0
  ylength 0.3
  zaxis 0 0 1
  zlength 0.3
}
sphere {
  name "far_left"
  numMaterials 1
  material {
    diffColor 0.56 0.35 0.14
    ambColor 0.2 0.2 0.2
    specColor 0 0 0
    emisColor 0 0 0
    shininess 0.2
    ktran 0
  }
  origin 0.4 -0.7 0.40
  radius 0.3
  xaxis 1 0 0
  xlength 0.3
  yaxis 0 1 0
  ylength 0.3
  zaxis 0 0 1
  zlength 0.3
}

poly_set {
  name "Floor"
  numMaterials 1
  material {
    diffColor 1 1 1
    ambColor 0 0 0
    specColor 0 0 0
    emisColor 0 0 0
    shininess 0.0
    ktran 0
  }
  type POLYSET_TRI_MESH
  normType PER_FACE_NORMAL
  materialBinding PER_OBJECT_MATERIAL
  hasTextureCoords FALSE
  rowSize 0
  numPolys 2
  poly {
    numVertices 3
    pos -1 -1 -1
    pos -1 -1  1
    pos  1 -1 -1
  }
  poly {
  	numVertices 3
    pos -1 -1  1
  	pos  1 -1 -1
    pos  1 -1  1
  }
 }




poly_set {
  name "Ceiling"
  numMaterials 1
  material {
    diffColor 1 1 1
    ambColor 0 0 0
    specColor 0 0 0
    emisColor 0 0 0
    shininess 0.0
    ktran 0
  }
  type POLYSET_TRI_MESH
  normType PER_FACE_NORMAL
  materialBinding PER_OBJECT_MATERIAL
  hasTextureCoords FALSE
  rowSize 0
  numPolys 2
  poly {
    numVertices 3
    pos  1  1 -1
    pos  1  1  1
    pos -1  1  1
  }
  poly {
  	numVertices 3
    pos  1  1 -1
    pos -1  1  1
    pos -1  1 -1
  }

poly_set {
  name "Back_wall"
  numMaterials 1
  material {
    diffColor 1 1 1
    ambColor 0 0 0
    specColor 0 0 0
    emisColor 0 0 0
    shininess 0.0
    ktran 0
  }
  type POLYSET_TRI_MESH
  normType PER_FACE_NORMAL
  materialBinding PER_OBJECT_MATERIAL
  hasTextureCoords FALSE
  rowSize 0
  numPolys 2
  poly {
    numVertices 3
    pos 1 -1 1
    pos -1 -1 1
    pos -1 1 1
  }
  poly {
  	numVertices 3
    pos 1 -1 1
    pos -1 1 1
    pos 1 1 1
  }


  poly_set {
  name "Right_wall_green"
  numMaterials 1
  material {
    diffColor 0 1 0
    ambColor 0 0 0
    specColor 0 0 0
    emisColor 0 0 0
    shininess 0.0
    ktran 0
  }
  type POLYSET_TRI_MESH
  normType PER_FACE_NORMAL
  materialBinding PER_OBJECT_MATERIAL
  hasTextureCoords FALSE
  rowSize 0
  numPolys 2
  poly {
    numVertices 3
    pos -1 -1 1
    pos -1 -1 -1
    pos -1 1 -1
  }
  poly {
    numVertices 3
    pos -1 1 -1
    pos -1 -1 1
    pos -1 1 1
  }

  poly_set {
  name "Left_wall_red"
  numMaterials 1
  material {
    diffColor 1 0 0
    ambColor 0 0 0
    specColor 0 0 0
    emisColor 0 0 0
    shininess 0.0
    ktran 0
  }
  type POLYSET_TRI_MESH
  normType PER_FACE_NORMAL
  materialBinding PER_OBJECT_MATERIAL
  hasTextureCoords FALSE
  rowSize 0
  numPolys 2
  poly {
    numVertices 3
    pos 1 -1 1
    pos 1 -1 -1
    pos 1 1 -1
  }
  poly {
    numVertices 3
    pos 1 1 -1
    pos 1 -1 1
    pos 1 1 1
  }
}