Commands/Shaders/Get-OBSVoronoiPixelationShader.ps1
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function Get-OBSVoronoiPixelationShader { [Alias('Set-OBSVoronoiPixelationShader','Add-OBSVoronoiPixelationShader')] param( # Set the pixH of OBSVoronoiPixelationShader [ComponentModel.DefaultBindingProperty('pixH')] [Single] $PixH, # Set the alternative of OBSVoronoiPixelationShader [ComponentModel.DefaultBindingProperty('alternative')] [Management.Automation.SwitchParameter] $Alternative, # 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 = 'voronoi-pixelation' $ShaderNoun = 'OBSVoronoiPixelationShader' if (-not $psBoundParameters['ShaderText']) { $psBoundParameters['ShaderText'] = $ShaderText = ' // https://www.shadertoy.com/view/sd3yzn adopted by Exeldro uniform float pixH< string label = "Size"; string widget_type = "slider"; float minimum = 4.0; float maximum = 500.0; float step = 0.01; > = 100.0; uniform bool alternative; float2 fract2(float2 v){ return float2(v.x - floor(v.x), v.y - floor(v.y)); } float2 random2( float2 p ) { return fract2(sin(float2(dot(p,float2(127.1,311.7)),dot(p,float2(269.5,183.3))))*43758.5453); } float2 randomSpin(float2 p, float f){ return 1.0 * float2( cos( f * elapsed_time * 3.14159 * sign(random2(p).y - 0.5) + random2(p).y * 3.14159), sin( f * elapsed_time * 3.14159 * sign(random2(p).x - 0.5) + random2(p).x * 3.14159)); } float4 VoronoiPixelation(float2 uv, float pixH ){ float2 pixInt = fract2(uv * pixH); float2 pixExt = floor(uv * pixH); float m_dist = 10.0; float2 relClos = float2(0.0, 0.0); float2 relRot = 0.5 * float2(cos(elapsed_time), sin(elapsed_time)); for (int y= -3; y <= 3; y++) { for (int x= -3; x <= 3; x++) { float2 neighbor = float2(float(x),float(y)); float2 point1 = random2(pixExt + neighbor); float2 relRot = randomSpin(pixExt + neighbor, 0.5); float2 diff = neighbor + relRot + point1 - pixInt; float dist = length(diff); if(dist < m_dist){ m_dist = dist; relClos = neighbor; } } } float2 nPoint = pixExt + relClos + randomSpin(pixExt + relClos, 0.5) + random2(pixExt + relClos); nPoint = nPoint / pixH; nPoint.x = nPoint.x * uv_scale.x ; return image.Sample(textureSampler, nPoint); } float4 VoronoiPixelation2(float2 uv, float pixH ){ float2 pixInt = fract2(uv * pixH); float2 pixExt = floor(uv * pixH); float m_dist = 10.0; float2 relClos = float2(0.0, 0.0); float2 relRot = 0.5 * float2(cos(elapsed_time), sin(elapsed_time)); for (int y= -3; y <= 3; y++) { for (int x= -3; x <= 3; x++) { float2 neighbor = float2(float(x),float(y)); float2 point2 = random2(pixExt + neighbor); float2 relRot = randomSpin(pixExt + neighbor, 0.5); float2 diff = neighbor + relRot + point2 - pixInt; float dist = length(diff); if(dist < m_dist){ m_dist = dist; relClos = neighbor; } } } float2 nPoint = pixExt + relClos + random2(pixExt + relClos); nPoint = nPoint / pixH; nPoint.x = nPoint.x * uv_scale.x; return image.Sample(textureSampler, nPoint); } float4 mainImage(VertData v_in) : TARGET { if (alternative) { return VoronoiPixelation2(v_in.uv, pixH); } else { return VoronoiPixelation(v_in.uv, pixH); } } ' } $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 } } } } } |