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extends Spatial
#This script loops through all the nodes in the scene, finds their materials,
#then adds them to a generated quad mesh to force all shaders to be compiled.
#Once they are all compiled, the node emits a signal saying it's done and frees itself.
#This is to prevent frame stutter when compiling shaders mid-game.
#If you need to compile a material that is not present
#when the scene loads (i.e. instanced nodes) add a copy of their .tscn as a child of
#this node in the scene window.
#This spatial node must be placed somewhere within the camera's frustum. It does not have
#to be directly visible, it can be under a floor or behind a wall, as long as it stays
#within the camera frustum bounds for the amount of frames specified below.
signal all_shaders_compiled
const num_frames = 10 #How many frames the script runs for.
var found_materials = []
var found_particles = []
var counter = 0
func _ready():
compile_shaders(get_tree().root)
func _process(_delta):
counter += 1
if counter >= num_frames:
emit_signal("all_shaders_compiled")
queue_free()
func compile_shaders(scene):
for child in scene.get_children():
if child is MeshInstance:
for i in range(child.get_surface_material_count()):
var mat = child.get_surface_material(i)
if mat == null:
mat = child.mesh.surface_get_material(i)
if mat == null:
print("Error: No material assigned to " + str(child.name) + ". Could not compile.")
if is_instance_valid(mat):
if not mat in found_materials:
generate_quad(mat)
found_materials.append(mat)
if child is Particles:
var particle = child as Particles
var particle_mat = particle.get_process_material()
if particle_mat == null:
print("Error: No process material assigned to " + str(child.name) + ". Could not compile.")
if is_instance_valid(particle_mat):
if not particle_mat in found_particles:
var particles_to_compile = particle.duplicate()
duplicate_particles(particles_to_compile)
found_particles.append(particle_mat)
compile_shaders(child)
func generate_quad(material):
var quad = QuadMesh.new()
var mesh = MeshInstance.new()
mesh.mesh = quad
mesh.set_surface_material(0, material)
add_child(mesh)
mesh.global_transform.origin.x += randf() * 0.5
mesh.global_transform.origin.y += randf() * 0.5
mesh.global_transform.origin.z += randf() * 0.5
func duplicate_particles(particle_node):
particle_node.translation = self.translation
particle_node.rotation = Vector3.ZERO
add_child(particle_node)
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