Commands/Shaders/Get-OBSRgbColorWheelShader.ps1

function Get-OBSRgbColorWheelShader {

[Alias('Set-OBSRgbColorWheelShader','Add-OBSRgbColorWheelShader')]
param(
# Set the speed of OBSRgbColorWheelShader
[ComponentModel.DefaultBindingProperty('speed')]
[Single]
$Speed,
# Set the color_depth of OBSRgbColorWheelShader
[Alias('color_depth')]
[ComponentModel.DefaultBindingProperty('color_depth')]
[Single]
$ColorDepth,
# Set the Apply_To_Image of OBSRgbColorWheelShader
[Alias('Apply_To_Image')]
[ComponentModel.DefaultBindingProperty('Apply_To_Image')]
[Management.Automation.SwitchParameter]
$ApplyToImage,
# Set the Replace_Image_Color of OBSRgbColorWheelShader
[Alias('Replace_Image_Color')]
[ComponentModel.DefaultBindingProperty('Replace_Image_Color')]
[Management.Automation.SwitchParameter]
$ReplaceImageColor,
# Set the Apply_To_Specific_Color of OBSRgbColorWheelShader
[Alias('Apply_To_Specific_Color')]
[ComponentModel.DefaultBindingProperty('Apply_To_Specific_Color')]
[Management.Automation.SwitchParameter]
$ApplyToSpecificColor,
# Set the Color_To_Replace of OBSRgbColorWheelShader
[Alias('Color_To_Replace')]
[ComponentModel.DefaultBindingProperty('Color_To_Replace')]
[String]
$ColorToReplace,
# Set the Alpha_Percentage of OBSRgbColorWheelShader
[Alias('Alpha_Percentage')]
[ComponentModel.DefaultBindingProperty('Alpha_Percentage')]
[Single]
$AlphaPercentage,
# Set the center_width_percentage of OBSRgbColorWheelShader
[Alias('center_width_percentage')]
[ComponentModel.DefaultBindingProperty('center_width_percentage')]
[Int32]
$CenterWidthPercentage,
# Set the center_height_percentage of OBSRgbColorWheelShader
[Alias('center_height_percentage')]
[ComponentModel.DefaultBindingProperty('center_height_percentage')]
[Int32]
$CenterHeightPercentage,
# The name of the source. This must be provided when adding an item for the first time
[Parameter(ValueFromPipelineByPropertyName)]
[Alias('SceneItemName')]
[String]
$SourceName,
# The name of the filter. If this is not provided, this will default to the shader name.
[Parameter(ValueFromPipelineByPropertyName)]
[String]
$FilterName,
# The inline value of the shader. This will normally be provided as a default parameter, based off of the name.
[Alias('ShaderContent')]
[String]
$ShaderText,
# If set, will force the recreation of a shader that already exists
[Management.Automation.SwitchParameter]
$Force,
# If set, will pass thru the commands that would be sent to OBS (these can be sent at any time with Send-OBS)
[Management.Automation.SwitchParameter]
$PassThru,
# If set, will not wait for a response from OBS (this will be faster, but will not return anything)
[Management.Automation.SwitchParameter]
$NoResponse,
# If set, use the shader elapsed time, instead of the OBS system elapsed time
[ComponentModel.DefaultBindingProperty('use_shader_elapsed_time')]
[Management.Automation.SwitchParameter]
$UseShaderTime
)


process {
$shaderName = 'rgb_color_wheel'
$ShaderNoun = 'OBSRgbColorWheelShader'
if (-not $psBoundParameters['ShaderText']) {    
    $psBoundParameters['ShaderText'] = $ShaderText = '
// RGB Color Wheel shader by Charles Fettinger for obs-shaderfilter plugin 5/2020
// https://github.com/Oncorporation/obs-shaderfilter
//Converted to OpenGl by Q-mii & Exeldro February 25, 2022
uniform float speed<
    string label = "Speed";
    string widget_type = "slider";
    float minimum = 0.0;
    float maximum = 15.0;
    float step = 0.1;
> = 2.0;
uniform float color_depth<
    string label = "Color Depth";
    string widget_type = "slider";
    float minimum = 0.0;
    float maximum = 10.0;
    float step = 0.1;
> = 2.10;
uniform bool Apply_To_Image;
uniform bool Replace_Image_Color;
uniform bool Apply_To_Specific_Color;
uniform float4 Color_To_Replace;
uniform float Alpha_Percentage<
    string label = "Alpha Percentage";
    string widget_type = "slider";
    float minimum = 0.0;
    float maximum = 100.0;
    float step = 0.1;
> = 100; //<Range(0.0,100.0)>
uniform int center_width_percentage<
    string label = "center width percentage";
    string widget_type = "slider";
    int minimum = 0;
    int maximum = 100;
    int step = 1;
> = 50;
uniform int center_height_percentage<
    string label = "center height percentage";
    string widget_type = "slider";
    int minimum = 0;
    int maximum = 100;
    int step = 1;
> = 50;

float3 hsv2rgb(float3 c)
{
    float4 K = float4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
    float3 p = abs(frac(c.xxx + K.xyz) * 6.0 - K.www);
    return c.z * lerp(K.xxx, saturate(p - K.xxx), c.y);
}

float mod(float x, float y)
{
    return x - y * floor(x / y);
}

float4 mainImage(VertData v_in) : TARGET
{
    const float PI = 3.14159265f;//acos(-1);
    float PI180th = 0.0174532925; //PI divided by 180
    float4 rgba = image.Sample(textureSampler, v_in.uv);
    float2 center_pixel_coordinates = float2((center_width_percentage * 0.01), (center_height_percentage * 0.01) );
    float2 st = v_in.uv* uv_scale;
    float2 toCenter = center_pixel_coordinates - st ;
    float r = length(toCenter) * color_depth;
    float angle = atan2(toCenter.y ,toCenter.x );
    float angleMod = (elapsed_time * mod(speed ,18)) / 18;

    rgba.rgb = hsv2rgb(float3((angle / PI*0.5) + angleMod,r,1.0));

    float4 color;
    float4 original_color;
    if (Apply_To_Image)
    {
        color = image.Sample(textureSampler, v_in.uv);
        original_color = color;
        float luma = color.r * 0.299 + color.g * 0.587 + color.b * 0.114;
        if (Replace_Image_Color)
            color = float4(luma, luma, luma, luma);
        rgba = lerp(original_color, rgba * color,clamp(Alpha_Percentage *.01 ,0,1.0));
        
    }
    if (Apply_To_Specific_Color)
    {
        color = image.Sample(textureSampler, v_in.uv);
        original_color = color;
        color = (distance(color.rgb, Color_To_Replace.rgb) <= 0.075) ? rgba : color;
        rgba = lerp(original_color, color, clamp(Alpha_Percentage * .01, 0, 1.0));
    }

    return rgba;
}
'

}
$MyVerb, $myNoun = $MyInvocation.InvocationName -split '-',2
if (-not $myNoun) {
    $myNoun = $myVerb
    $myVerb = 'Get'    
}
switch -regex ($myVerb) {
    Get {
        $FilterNamePattern = "(?>$(
            if ($FilterName) {
                [Regex]::Escape($FilterName)
            }
            else {
                [Regex]::Escape($ShaderNoun -replace '^OBS' -replace 'Shader$'),[Regex]::Escape($shaderName) -join '|'
            }
        ))"

        if ($SourceName) {
            Get-OBSInput | 
                Where-Object InputName -eq $SourceName |
                Get-OBSSourceFilterList |
                Where-Object FilterName -Match $FilterNamePattern
        } else {
            $obs.Inputs |
                Get-OBSSourceFilterList |
                Where-Object FilterName -Match $FilterNamePattern
        }        
    }
    'Remove' {
        if ($SourceName) {
            Get-OBSInput | 
                Where-Object InputName -eq $SourceName |
                Get-OBSSourceFilterList |
                Where-Object FilterName -Match $FilterNamePattern |
                Remove-OBSSourceFilter
        }
    }
    '(?>Add|Set)' {
        $ShaderSettings = [Ordered]@{}
        :nextParameter foreach ($parameterMetadata in $MyInvocation.MyCommand.Parameters[@($psBoundParameters.Keys)]) {
            foreach ($parameterAttribute in $parameterMetadata.Attributes) {
                if ($parameterAttribute -isnot [ComponentModel.DefaultBindingPropertyAttribute]) { continue }
                $ShaderSettings[$parameterAttribute.Name] = $PSBoundParameters[$parameterMetadata.Name]
                if ($ShaderSettings[$parameterAttribute.Name] -is [switch]) {
                    $ShaderSettings[$parameterAttribute.Name] = $ShaderSettings[$parameterAttribute.Name] -as [bool]
                }
                continue nextParameter
            }            
        }

        if (-not $PSBoundParameters['FilterName']) {
            $filterName = $PSBoundParameters['FilterName'] = $shaderName
        }

        $ShaderFilterSplat = [Ordered]@{
            ShaderSetting = $ShaderSettings
            FilterName = $FilterName
            SourceName = $SourceName
        }        

        foreach ($CarryOnParameter in "PassThru", "NoResponse","Force") {
            if ($PSBoundParameters.ContainsKey($CarryOnParameter)) {
                $ShaderFilterSplat[$CarryOnParameter] = $PSBoundParameters[$CarryOnParameter]
            }
        }

        if (-not $script:CachedShaderFilesFromCommand) {
            $script:CachedShaderFilesFromCommand = @{}
        }

        if ($Home -and -not $script:CachedShaderFilesFromCommand[$shaderName]) {
            $MyObsPowerShellPath = Join-Path $home ".obs-powershell"
            $ThisShaderPath = Join-Path $MyObsPowerShellPath "$shaderName.shader"
            $shaderText | Set-Content -LiteralPath $ThisShaderPath
            $script:CachedShaderFilesFromCommand[$shaderName] = Get-Item -LiteralPath $ThisShaderPath
        }
        if ($script:CachedShaderFilesFromCommand[$shaderName]) {
            $ShaderFilterSplat.ShaderFile = $script:CachedShaderFilesFromCommand[$shaderName].FullName
        } else {
            $ShaderFilterSplat.ShaderText = $shaderText
        }        

        if ($myVerb -eq 'Add') {                        
            Add-OBSShaderFilter @ShaderFilterSplat
        } else {
            Set-OBSShaderFilter @ShaderFilterSplat
        }
    }
}

}


}