jyapayne/JFA_driven_motion_blur_demo
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improvement/fixes: blur quality, blur range, Mac support, performance

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- blur heuristics improved for reduced smearing
- velocity blur range fixed a bug
- fixed MacOs bug regarding doubles in shader
- lowered buffer accuracy and changed doubles to floats, improved performance
This commit is contained in:
sphynx-owner 2024-07-09 21:21:05 +03:00
commit a34ff7f25f
7 changed files with 52 additions and 35 deletions
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17
MyJumpFloodIteration/jump_flood_blur.gd
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@ -31,9 +31,15 @@ class_name MotionBlurSphynxJumpFlood
@export var perpen_error_threshold : float = 0.3
## an initial step size that can increase the dilation radius proportionally, at the
## sacrifice of some quality in the final resolution of the dilation
## sacrifice of some quality in the final resolution of the dilation.[br][br]
## the formula for the maximum radius of the dilation (in pixels) is: pow(2, JFA_pass_count) * sample_step_multiplier
@export var sample_step_multiplier : float = 8
## how many steps along a range of 2 velocities from the
## dilation target velocity space do we go along to find a better fitting velocity sample
## higher samples meaning higher detail getting captured and blurred
@export var backtracking_sample_count : int = 8
## how sensitive the backtracking for velocities be
@export var backtracking_velocity_match_threshold : float = 0.9
@ -50,7 +56,8 @@ class_name MotionBlurSphynxJumpFlood
@export var backtracbing_depth_match_threshold : float = 0.001
## the number of passes performed by the jump flood algorithm based dilation,
## each pass added doubles the maximum radius of dilation available
## each pass added doubles the maximum radius of dilation available.[br][br]
## the formula for the maximum radius of the dilation (in pixels) is: pow(2, JFA_pass_count) * sample_step_multiplier
@export var JFA_pass_count : int = 3
## wether this motion blur stays the same intensity below
@ -180,8 +187,8 @@ func _render_callback(p_effect_callback_type, p_render_data):
return
ensure_texture(texture, render_scene_buffers)
ensure_texture(buffer_a, render_scene_buffers, true)#, Vector2(0.25, 0.25))
ensure_texture(buffer_b, render_scene_buffers, true)#, Vector2(0.25, 0.25))
ensure_texture(buffer_a, render_scene_buffers)
ensure_texture(buffer_b, render_scene_buffers)
ensure_texture(past_color, render_scene_buffers)
rd.draw_command_begin_label("Motion Blur", Color(1.0, 1.0, 1.0, 1.0))
@ -229,7 +236,7 @@ func _render_callback(p_effect_callback_type, p_render_data):
var jf_push_constants : PackedInt32Array = [
i,
last_iteration_index,
16,
backtracking_sample_count,
16
]