Merge pull request #885 from Spartan322/merge/d09d82d

Merge commit godotengine/godot@d09d82d

1 files changed, 26 insertions, 1 deletions

diff --git a/doc/classes/VisualShaderNodeColorFunc.xml b/doc/classes/VisualShaderNodeColorFunc.xml
index edb5238325..aa2dcca1d5 100644
--- a/doc/classes/VisualShaderNodeColorFunc.xml
+++ b/doc/classes/VisualShaderNodeColorFunc.xml
@@ -40,7 +40,32 @@
 			return vec3(r, g, b);
 			[/codeblock]
 		</constant>
-		<constant name="FUNC_MAX" value="4" enum="Function">
+		<constant name="FUNC_LINEAR_TO_SRGB" value="4" enum="Function">
+			Converts color from linear color space to sRGB color space using the following formula:
+			[codeblock]
+			vec3 c = clamp(c, vec3(0.0), vec3(1.0));
+			const vec3 a = vec3(0.055f);
+			return mix((vec3(1.0f) + a) * pow(c.rgb, vec3(1.0f / 2.4f)) - a, 12.92f * c.rgb, lessThan(c.rgb, vec3(0.0031308f)));
+			[/codeblock]
+			The Compatibility renderer uses a simpler formula:
+			[codeblock]
+			vec3 c = input;
+			return max(vec3(1.055) * pow(c, vec3(0.416666667)) - vec3(0.055), vec3(0.0));
+			[/codeblock]
+		</constant>
+		<constant name="FUNC_SRGB_TO_LINEAR" value="5" enum="Function">
+			Converts color from sRGB color space to linear color space using the following formula:
+			[codeblock]
+			vec3 c = input;
+			return mix(pow((c.rgb + vec3(0.055)) * (1.0 / (1.0 + 0.055)), vec3(2.4)), c.rgb * (1.0 / 12.92), lessThan(c.rgb, vec3(0.04045)));
+			[/codeblock]
+			The Compatibility renderer uses a simpler formula:
+			[codeblock]
+			vec3 c = input;
+			return c * (c * (c * 0.305306011 + 0.682171111) + 0.012522878);
+			[/codeblock]
+		</constant>
+		<constant name="FUNC_MAX" value="6" enum="Function">
 			Represents the size of the [enum Function] enum.
 		</constant>
 	</constants>