Color: Rename `to_srgb`/`to_linear` to include base color space

This helps reduce confusion around sRGB <> Linear conversions by making
both input and output color spaces explicit.

3 files changed, 5 insertions, 5 deletions

diff --git a/core/io/image.cpp b/core/io/image.cpp
index fad9942017..4aed5a913a 100644
--- a/core/io/image.cpp
+++ b/core/io/image.cpp
@@ -3276,7 +3276,7 @@ Ref<Image> Image::rgbe_to_srgb() {
 
 	for (int row = 0; row < height; row++) {
 		for (int col = 0; col < width; col++) {
-			new_image->set_pixel(col, row, get_pixel(col, row).to_srgb());
+			new_image->set_pixel(col, row, get_pixel(col, row).linear_to_srgb());
 		}
 	}
 
diff --git a/core/math/color.h b/core/math/color.h
index b90a0f33a2..91e0bf5532 100644
--- a/core/math/color.h
+++ b/core/math/color.h
@@ -169,14 +169,14 @@ struct _NO_DISCARD_ Color {
 		return res;
 	}
 
-	_FORCE_INLINE_ Color to_linear() const {
+	_FORCE_INLINE_ Color srgb_to_linear() const {
 		return Color(
 				r < 0.04045f ? r * (1.0 / 12.92) : Math::pow((r + 0.055f) * (float)(1.0 / (1 + 0.055)), 2.4f),
 				g < 0.04045f ? g * (1.0 / 12.92) : Math::pow((g + 0.055f) * (float)(1.0 / (1 + 0.055)), 2.4f),
 				b < 0.04045f ? b * (1.0 / 12.92) : Math::pow((b + 0.055f) * (float)(1.0 / (1 + 0.055)), 2.4f),
 				a);
 	}
-	_FORCE_INLINE_ Color to_srgb() const {
+	_FORCE_INLINE_ Color linear_to_srgb() const {
 		return Color(
 				r < 0.0031308f ? 12.92f * r : (1.0f + 0.055f) * Math::pow(r, 1.0f / 2.4f) - 0.055f,
 				g < 0.0031308f ? 12.92f * g : (1.0f + 0.055f) * Math::pow(g, 1.0f / 2.4f) - 0.055f,
diff --git a/core/variant/variant_call.cpp b/core/variant/variant_call.cpp
index c11925fa8c..f1daf1de13 100644
--- a/core/variant/variant_call.cpp
+++ b/core/variant/variant_call.cpp
@@ -1656,8 +1656,8 @@ static void _register_variant_builtin_methods() {
 	bind_method(Color, darkened, sarray("amount"), varray());
 	bind_method(Color, blend, sarray("over"), varray());
 	bind_method(Color, get_luminance, sarray(), varray());
-	bind_method(Color, to_linear, sarray(), varray());
-	bind_method(Color, to_srgb, sarray(), varray());
+	bind_method(Color, srgb_to_linear, sarray(), varray());
+	bind_method(Color, linear_to_srgb, sarray(), varray());
 
 	bind_method(Color, is_equal_approx, sarray("to"), varray());