Commands/Shaders/Get-OBSScanLineShader.ps1
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function Get-OBSScanLineShader { [Alias('Set-OBSScanLineShader','Add-OBSScanLineShader')] param( # Set the lengthwise of OBSScanLineShader [ComponentModel.DefaultBindingProperty('lengthwise')] [Management.Automation.SwitchParameter] $Lengthwise, # Set the animate of OBSScanLineShader [ComponentModel.DefaultBindingProperty('animate')] [Management.Automation.SwitchParameter] $Animate, # Set the speed of OBSScanLineShader [ComponentModel.DefaultBindingProperty('speed')] [Single] $Speed, # Set the angle of OBSScanLineShader [ComponentModel.DefaultBindingProperty('angle')] [Single] $Angle, # Set the shift of OBSScanLineShader [ComponentModel.DefaultBindingProperty('shift')] [Management.Automation.SwitchParameter] $Shift, # Set the boost of OBSScanLineShader [ComponentModel.DefaultBindingProperty('boost')] [Management.Automation.SwitchParameter] $Boost, # Set the floor of OBSScanLineShader [ComponentModel.DefaultBindingProperty('floor')] [Single] $Floor, # Set the period of OBSScanLineShader [ComponentModel.DefaultBindingProperty('period')] [Single] $Period, # Set the notes of OBSScanLineShader [ComponentModel.DefaultBindingProperty('notes')] [String] $Notes, # 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 = 'scan_line' $ShaderNoun = 'OBSScanLineShader' if (-not $psBoundParameters['ShaderText']) { $psBoundParameters['ShaderText'] = $ShaderText = ' // Scan Line Effect for OBS Studio // originally from Andersama (https://github.com/Andersama) // Modified and improved my Charles Fettinger (https://github.com/Oncorporation) 1/2019 //Converted to OpenGL by Q-mii & Exeldro February 21, 2022 //Count the number of scanlines we want via height or width, adjusts the sin wave period uniform bool lengthwise; //Do we want the scanlines to move? uniform bool animate; //How fast do we want those scanlines to move? uniform float speed< string label = "Speed"; string widget_type = "slider"; float minimum = 0.0; float maximum = 10000.0; float step = 1; > = 1000; //What angle should the scanlines come in at (based in degrees) uniform float angle< string label = "angle"; string widget_type = "slider"; float minimum = 0.0; float maximum = 360.0; float step = 0.1; > = 45; //Turns on adjustment of the results, sin returns -1 -> 1 these settings will change the results a bit //By default values for color range from 0 to 1 //Boost centers the result of the sin wave on 1*, to help maintain the brightness of the screen uniform bool shift = true; uniform bool boost = true; //Increases the minimum value of the sin wave uniform float floor< string label = "Floor"; string widget_type = "slider"; float minimum = 0.0; float maximum = 100.0; float step = 0.001; > = 0.0; //final adjustment to the period of the sin wave, we can''t / 0, need to be careful w/ user input uniform float period< string label = "Period"; string widget_type = "slider"; float minimum = 1.0; float maximum = 1000.0; float step = 1.0; > = 10.0; uniform string notes< string widget_type = "info"; > = "floor affects the minimum opacity of the scan line"; float4 mainImage(VertData v_in) : TARGET { //3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481 3.141592653589793238462643383279502884197169399375105820974944592307816406286 // float pix2 = 6.2831853071795864769252;//86766559005768394338798750211641949 float nfloor = clamp(floor, 0.0, 100.0) * 0.01; float nperiod = max(period, 1.0); float gap = 1 - nfloor; float pi = 3.1415926535897932384626; float2 direction = float2( cos(angle * pi / 180.0) , sin(angle * pi / 180.0) ); float nspeed = 0.0; if(animate){ nspeed = speed * 0.0001; } float4 color = image.Sample(textureSampler, v_in.uv); float t = elapsed_time * nspeed; if(!lengthwise){ float base_height = 1.0 / uv_pixel_interval.y; float h_interval = pi * base_height; float rh_sin = sin(((v_in.uv.y * direction.y + v_in.uv.x * direction.x) + t) * (h_interval / nperiod)); if(shift){ rh_sin = ((1.0 + rh_sin) * 0.5) * gap + nfloor; if(boost){ rh_sin += gap * 0.5; } } float4 s_mult = float4(rh_sin,rh_sin,rh_sin,1); return s_mult * color; } else{ float base_width = 1.0 / uv_pixel_interval.x; float w_interval = pi * base_width; float rh_sin = sin(((v_in.uv.y * direction.y + v_in.uv.x * direction.x) + t) * (w_interval / nperiod)); if(shift){ rh_sin = ((1.0 + rh_sin) * 0.5) * gap + nfloor; if(boost){ rh_sin += gap * 0.5; } } float4 s_mult = float4(rh_sin,rh_sin,rh_sin,1); return s_mult * color; } } ' } $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 } } } } } |