Offset pivot to get correct impostor position

wojtekpil · Jun 3, 2021 · 706e9a5 · 706e9a5
1 parent 4c8a53c
commit 706e9a5
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Showing 4 changed files with 15 additions and 0 deletions.
diff --git a/addons/octahedral_impostors/scripts/baking/baker.gd b/addons/octahedral_impostors/scripts/baking/baker.gd
@@ -118,6 +118,8 @@ func bake():
 	yield(get_tree(), "idle_frame")
 	yield(get_tree(), "idle_frame")
 
+	exporter.position_offset = scene_baker.get_pivot_translation()
+
 	for mapbaker in profile.standard_map_bakers:
 		map_baker = mapbaker.new()
 		print("Baking: ", map_baker.get_name())

diff --git a/addons/octahedral_impostors/scripts/baking/exporter.gd b/addons/octahedral_impostors/scripts/baking/exporter.gd
@@ -9,6 +9,7 @@ var export_path := "res://"
 var frames_xy := 12
 var is_full_sphere := false
 var scale_instance := 1.0
+var position_offset := Vector3.ZERO
 var packedscene_filename := "impostor.tscn"
 
 var saved_maps := {}
@@ -96,13 +97,15 @@ func export_scene(mat: Material, texture_array: bool = false, shadow_mat: Materi
 	mat.set_shader_param("isFullSphere", is_full_sphere)
 	mat.set_shader_param("aabb_max", scale_instance/2.0)
 	mat.set_shader_param("scale", scale_instance)
+	mat.set_shader_param("positionOffset", position_offset)
 
 	if shadow_mat != null:
 		print("Creating shadow material...")
 		shadow_mat.set_shader_param("imposterFrames", Vector2(frames_xy, frames_xy))
 		shadow_mat.set_shader_param("isFullSphere", is_full_sphere)
 		shadow_mat.set_shader_param("aabb_max", -scale_instance/2.0)
 		shadow_mat.set_shader_param("scale", scale_instance)
+		shadow_mat.set_shader_param("positionOffset", position_offset)
 		mi_shadow.cast_shadow = GeometryInstance.SHADOW_CASTING_SETTING_SHADOWS_ONLY
 
 	print("Loading resources...")

diff --git a/addons/octahedral_impostors/scripts/baking/scene_baker.gd b/addons/octahedral_impostors/scripts/baking/scene_baker.gd
@@ -9,6 +9,11 @@ signal atlas_ready
 #baked atlas image will be read from here after signal
 var atlas_image: Image
 
+
+func get_pivot_translation() -> Vector3:
+    return Vector3.ZERO
+
+
 func set_atlas_image(img: Image) -> void:
     atlas_image = img
 

diff --git a/addons/octahedral_impostors/scripts/baking/scene_bakers/multi_bake_scene.gd b/addons/octahedral_impostors/scripts/baking/scene_bakers/multi_bake_scene.gd
@@ -20,6 +20,11 @@ var camera_distance_scaled: float
 
 onready var baking_camera: Camera = $Camera
 
+
+func get_pivot_translation() -> Vector3:
+    return scene_to_bake.translation * (-1.0) * frames_xy
+
+
 func get_scene_to_bake_aabb(node := scene_to_bake) -> AABB:
 	var aabb := AABB(Vector3.ONE * 65536.0, -Vector3.ONE * 65536.0 * 2.0)
 	if node is GeometryInstance and not node is CSGShape: