diff options
Diffstat (limited to 'doc/classes/VisualShaderNodeColorFunc.xml')
| -rw-r--r-- | doc/classes/VisualShaderNodeColorFunc.xml | 27 |
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> |