Commands/Shaders/Get-OBSChromaUVDistortionShader.ps1
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function Get-OBSChromaUVDistortionShader { [Alias('Set-OBSChromaUVDistortionShader','Add-OBSChromaUVDistortionShader')] param( # Set the distortion of OBSChromaUVDistortionShader [ComponentModel.DefaultBindingProperty('distortion')] [Single] $Distortion, # Set the amplitude of OBSChromaUVDistortionShader [ComponentModel.DefaultBindingProperty('amplitude')] [Single] $Amplitude, # Set the chroma of OBSChromaUVDistortionShader [ComponentModel.DefaultBindingProperty('chroma')] [Single] $Chroma, # 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 = 'Chroma+UV-Distortion' $ShaderNoun = 'OBSChromaUVDistortionShader' if (-not $psBoundParameters['ShaderText']) { $psBoundParameters['ShaderText'] = $ShaderText = ' //based on https://www.shadertoy.com/view/WsdyRN //Higher values = less distortion uniform float distortion< string label = "Distortion"; string widget_type = "slider"; float minimum = 5.0; float maximum = 1000.0; float step = 0.01; > = 75.; //Higher values = tighter distortion uniform float amplitude< string label = "Amplitude"; string widget_type = "slider"; float minimum = 0.0; float maximum = 100.0; float step = 0.01; > = 10.; //Higher values = more color distortion uniform float chroma< string label = "Chroma"; string widget_type = "slider"; float minimum = 0.0; float maximum = 6.28318531; float step = 0.01; > = .5; float2 zoomUv(float2 uv, float zoom) { float2 uv1 = uv; uv1 += .5; uv1 += zoom/2.-1.; uv1 /= zoom; return uv1; } float4 mainImage(VertData v_in) : TARGET { float2 uvt = v_in.uv; float2 uvtR = uvt; float2 uvtG = uvt; float2 uvtB = uvt; //Uncomment the following line to get varying chroma distortion //chroma = sin(elapsed_time)/2.+.5; uvtR += float2(sin(uvt.y*amplitude+elapsed_time)/distortion, cos(uvt.x*amplitude+elapsed_time)/distortion); uvtG += float2(sin(uvt.y*amplitude+elapsed_time+chroma)/distortion, cos(uvt.x*amplitude+elapsed_time+chroma)/distortion); uvtB += float2(sin(uvt.y*amplitude+elapsed_time+(chroma*2.))/distortion, cos(uvt.x*amplitude+elapsed_time+(chroma*2.))/distortion); float2 uvR = zoomUv(uvtR, 1.1); float2 uvG = zoomUv(uvtG, 1.1); float2 uvB = zoomUv(uvtB, 1.1); float4 colR = image.Sample(textureSampler, uvR); float4 colG = image.Sample(textureSampler, uvG); float4 colB = image.Sample(textureSampler, uvB); return float4(colR.r, colG.g, colB.b, (colR.a + colG.a + colB.a) / 3.0); } ' } $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 } } } } } |