Commands/Shaders/Get-OBSPolarShader.ps1
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function Get-OBSPolarShader { [Alias('Set-OBSPolarShader','Add-OBSPolarShader')] param( # Set the center_x of OBSPolarShader [Alias('center_x')] [ComponentModel.DefaultBindingProperty('center_x')] [Single] $CenterX, # Set the center_y of OBSPolarShader [Alias('center_y')] [ComponentModel.DefaultBindingProperty('center_y')] [Single] $CenterY, # Set the point_y of OBSPolarShader [Alias('point_y')] [ComponentModel.DefaultBindingProperty('point_y')] [Single] $PointY, # Set the flip of OBSPolarShader [ComponentModel.DefaultBindingProperty('flip')] [Management.Automation.SwitchParameter] $Flip, # Set the rotate of OBSPolarShader [ComponentModel.DefaultBindingProperty('rotate')] [Single] $Rotate, # Set the repeat of OBSPolarShader [ComponentModel.DefaultBindingProperty('repeat')] [Single] $Repeat, # Set the scale of OBSPolarShader [ComponentModel.DefaultBindingProperty('scale')] [Single] $Scale, # 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 = 'polar' $ShaderNoun = 'OBSPolarShader' if (-not $psBoundParameters['ShaderText']) { $psBoundParameters['ShaderText'] = $ShaderText = ' #define PI 3.14159265359 #define PI_2 6.2831 #define mod(x,y) (x - y * floor(x / y)) uniform float center_x< string label = "Center x"; string widget_type = "slider"; float minimum = 0.0; float maximum = 1.0; float step = 0.001; > = 0.5; uniform float center_y< string label = "Center y"; string widget_type = "slider"; float minimum = 0.0; float maximum = 1.0; float step = 0.001; > = 0.5; uniform float point_y< string label = "Point y"; string widget_type = "slider"; float minimum = -1.0; float maximum = 1.0; float step = 0.001; > = 0.0; uniform bool flip; uniform float rotate< string label = "Rotate"; string widget_type = "slider"; float minimum = 0.0; float maximum = 1.0; float step = 0.001; > = 0.0; uniform float repeat< string label = "Repeat"; string widget_type = "slider"; float minimum = 0.0; float maximum = 20.0; float step = 0.001; > = 1.0; uniform float scale< string label = "Scale"; string widget_type = "slider"; float minimum = 0.0; float maximum = 2.0; float step = 0.001; > = 0.5; float4 mainImage(VertData v_in) : TARGET { float2 uv = v_in.uv; uv.x -= center_x ; uv.y -= center_y ; uv.x = uv.x * ( uv_size.x / uv_size.y); float pixel_angle = atan2(uv.x,uv.y)/PI_2+0.5; if(repeat < 1.0){ pixel_angle = mod(pixel_angle+rotate,1.0); if(pixel_angle > repeat) return float4(0,0,0,0); pixel_angle = mod(pixel_angle/repeat,1.0); } else { pixel_angle = mod(pixel_angle*repeat+rotate, 1.0); } float pixel_distance = length(uv)/ scale - point_y; float2 uv2 = float2(pixel_angle , pixel_distance); if(flip) uv2 = float2(1.0,1.0) - uv2; return image.Sample(textureSampler,uv2); } ' } $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 } } } } } |