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Code Issues Wiki Activity

Fix drop shadow (#690)

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* Fix drop shadow

* Connect signal

AffectOptionButton didn't work
This commit is contained in:
AlphinAlbukhari 2022-05-04 05:02:20 +07:00 committed by GitHub
parent 0232f95c84
commit 55b5cc3932
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 16 additions and 1 deletions
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16
src/Shaders/DropShadow.tres
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@ -2,6 +2,7 @@
[resource] [resource]
code = "shader_type canvas_item; code = "shader_type canvas_item;
render_mode unshaded;
uniform vec2 shadow_offset; // Offset, in pixel coordinate [0, 1, 2, and so on] uniform vec2 shadow_offset; // Offset, in pixel coordinate [0, 1, 2, and so on]
uniform vec4 shadow_color; uniform vec4 shadow_color;
@ -14,7 +15,20 @@ void fragment() {
float shadow = texture(TEXTURE, UV - offset).a; // Shadow, alpha only float shadow = texture(TEXTURE, UV - offset).a; // Shadow, alpha only
shadow *= shadow_color.a; // Multiply this mask by shadow alpha shadow *= shadow_color.a; // Multiply this mask by shadow alpha
shadow = mix(0.0, shadow, texture(selection, UV).a); // Clip shadow by selection mask shadow = mix(0.0, shadow, texture(selection, UV).a); // Clip shadow by selection mask
shadow = mix(shadow, 0.0, original.a); // Erase shadow alpha on original area
COLOR.rgb = mix(shadow_color.rgb, original.rgb, original.a); // Set background color // Make a border to prevent stretching pixels on the edge
vec2 border_uv = UV - offset;
border_uv -= 0.5;
border_uv *= 2.0;
border_uv = abs(border_uv);
float border = max(border_uv.x, border_uv.y);
border = floor(border);
border = 1.0 - clamp(border, 0.0, 1.0);
shadow *= border; // Clip shadow by border so no more stretching
COLOR.rgb = mix(original.rgb, shadow_color.rgb, shadow); // Set color on shadow area
COLOR.a = mix(original.a, 1.0, shadow); // Combine alpha COLOR.a = mix(original.a, 1.0, shadow); // Combine alpha
}" }"

1
src/UI/Dialogs/ImageEffects/DropShadowDialog.gd
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@ -31,6 +31,7 @@ func _confirmed() -> void:
func set_nodes() -> void: func set_nodes() -> void:
preview = $VBoxContainer/AspectRatioContainer/Preview preview = $VBoxContainer/AspectRatioContainer/Preview
selection_checkbox = $VBoxContainer/OptionsContainer/SelectionCheckBox selection_checkbox = $VBoxContainer/OptionsContainer/SelectionCheckBox
affect_option_button = $VBoxContainer/OptionsContainer/AffectOptionButton
func commit_action(cel: Image, project: Project = Global.current_project) -> void: func commit_action(cel: Image, project: Project = Global.current_project) -> void: