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Fix bug where images with width or height 1 are unable to be exported/affected by image effects

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For some reason, ShaderImageEffect does not like images with width/height of 1.
This commit is contained in:
Emmanouil Papadeas 2024-04-10 02:15:11 +03:00
parent 018f95158e
commit 97a1de6db2
1 changed files with 14 additions and 0 deletions
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14
src/Classes/ShaderImageEffect.gd
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@ -7,6 +7,16 @@ signal done
func generate_image(img: Image, shader: Shader, params: Dictionary, size: Vector2i) -> void:
# duplicate shader before modifying code to avoid affecting original resource
var resized_width := false
var resized_height := false
if size.x == 1:
size.x = 2
img.crop(2, img.get_height())
resized_width = true
if size.y == 1:
size.y = 2
img.crop(img.get_width(), 2)
resized_height = true
shader = shader.duplicate()
shader.code = shader.code.replace("unshaded", "unshaded, blend_premul_alpha")
var vp := RenderingServer.viewport_create()
@ -46,4 +56,8 @@ func generate_image(img: Image, shader: Shader, params: Dictionary, size: Vector
RenderingServer.free_rid(texture)
viewport_texture.convert(Image.FORMAT_RGBA8)
img.copy_from(viewport_texture)
if resized_width:
img.crop(img.get_width() - 1, img.get_height())
if resized_height:
img.crop(img.get_width(), img.get_height() - 1)
done.emit()