Commands/Shaders/Get-OBSTvCrtSubpixelShader.ps1
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function Get-OBSTvCrtSubpixelShader { [Alias('Set-OBSTvCrtSubpixelShader','Add-OBSTvCrtSubpixelShader')] param( # Set the channelWidth of OBSTvCrtSubpixelShader [ComponentModel.DefaultBindingProperty('channelWidth')] [Int32] $ChannelWidth, # Set the channelHeight of OBSTvCrtSubpixelShader [ComponentModel.DefaultBindingProperty('channelHeight')] [Int32] $ChannelHeight, # Set the hGap of OBSTvCrtSubpixelShader [ComponentModel.DefaultBindingProperty('hGap')] [Int32] $HGap, # Set the vGap of OBSTvCrtSubpixelShader [ComponentModel.DefaultBindingProperty('vGap')] [Int32] $VGap, # 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 = 'tv-crt-subpixel' $ShaderNoun = 'OBSTvCrtSubpixelShader' if (-not $psBoundParameters['ShaderText']) { $psBoundParameters['ShaderText'] = $ShaderText = ' // https://www.shadertoy.com/view/dlBBz1 adopted for OBS by Exeldro // width of a single color channel in pixels uniform int channelWidth< string label = "Channel Width"; string widget_type = "slider"; int minimum = 1; int maximum = 20; int step = 1; > = 1; // height of color channels in pixels uniform int channelHeight< string label = "Channel Height"; string widget_type = "slider"; int minimum = 1; int maximum = 20; int step = 1; > = 3; // horizontal distance between two neighboring pixels uniform int hGap< string label = "Horizontal Gap"; string widget_type = "slider"; int minimum = 1; int maximum = 20; int step = 1; > = 1; // vertical distance between two neighboring pixels uniform int vGap< string label = "Vertical Gap"; string widget_type = "slider"; int minimum = 1; int maximum = 20; int step = 1; > = 1; float4 mainImage(VertData v_in) : TARGET { float columns = float(channelWidth * 3 + hGap); float pixelHeight = float(channelHeight + vGap); float2 fragCoord = v_in.uv * uv_size; float2 sampleRes = float2(uv_size.x / columns, uv_size.y / pixelHeight); float2 pixel = float2(floor(fragCoord.x / columns), floor(fragCoord.y / pixelHeight)); float2 sampleUv = pixel / sampleRes; // color of sample point float4 col = image.Sample(textureSampler, sampleUv); int column = int(fragCoord.x) % (channelWidth * 3 + hGap); // set color based on which channel this fragment corresponds to if (column < channelWidth * 1) col = float4(col.r, 0.0, 0.0, col.a); else if (column < channelWidth * 2) col = float4(0.0, col.g, 0.0, col.a); else if (column < channelWidth * 3) col = float4(0.0, 0.0, col.b, col.a); else col = float4(0.0, 0.0, 0.0, col.a); // offset every other column of pixels int height = int(pixelHeight); if (int(pixel.x) % 2 == 0) { if (int(fragCoord.y) % height >= height - vGap) col = float4(0.0, 0.0, 0.0, col.a); } else { if (int(fragCoord.y) % height < vGap) col = float4(0.0, 0.0, 0.0, col.a); } // Output to screen return col; } ' } $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 } } } } } |