Commands/Shaders/Get-OBSGlitchShader.ps1
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function Get-OBSGlitchShader { [Alias('Set-OBSGlitchShader','Add-OBSGlitchShader')] param( # Set the AMT of OBSGlitchShader [ComponentModel.DefaultBindingProperty('AMT')] [Single] $AMT, # Set the SPEED of OBSGlitchShader [ComponentModel.DefaultBindingProperty('SPEED')] [Single] $SPEED, # 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 = 'glitch' $ShaderNoun = 'OBSGlitchShader' if (-not $psBoundParameters['ShaderText']) { $psBoundParameters['ShaderText'] = $ShaderText = ' //based on https://www.shadertoy.com/view/MtXBDs //inputs uniform float AMT< string label = "AMT"; string widget_type = "slider"; float minimum = 0.0; float maximum = 1.0; float step = 0.01; > = 0.2; //0 - 1 glitch amount uniform float SPEED< string label = "Speed"; string widget_type = "slider"; float minimum = 0.0; float maximum = 1.0; float step = 0.01; > = 0.6; //0 - 1 speed //2D (returns 0 - 1) float random2d(float2 n) { return frac(sin(dot(n, float2(12.9898, 4.1414))) * 43758.5453); } float randomRange (in float2 seed, in float min, in float max) { return min + random2d(seed) * (max - min); } // return 1 if v inside 1d range float insideRange(float v, float bottom, float top) { return step(bottom, v) - step(top, v); } float4 mainImage(VertData v_in) : TARGET { float time = floor(elapsed_time * SPEED * 60.0); float2 uv = v_in.uv; //copy orig float4 outCol = image.Sample(textureSampler, uv); //randomly offset slices horizontally float maxOffset = AMT/2.0; for (float i = 0.0; i < 10.0 * AMT; i += 1.0) { float sliceY = random2d(float2(time , 2345.0 + float(i))); float sliceH = random2d(float2(time , 9035.0 + float(i))) * 0.25; float hOffset = randomRange(float2(time , 9625.0 + float(i)), -maxOffset, maxOffset); float2 uvOff = uv; uvOff.x += hOffset; if (insideRange(uv.y, sliceY, frac(sliceY+sliceH)) == 1.0 ){ outCol = image.Sample(textureSampler, uvOff); } } //do slight offset on one entire channel float maxColOffset = AMT/6.0; float rnd = random2d(float2(time , 9545.0)); float2 colOffset = float2(randomRange(float2(time , 9545.0),-maxColOffset,maxColOffset), randomRange(float2(time , 7205.0),-maxColOffset,maxColOffset)); if (rnd < 0.33){ outCol.r = image.Sample(textureSampler, uv + colOffset).r; }else if (rnd < 0.66){ outCol.g = image.Sample(textureSampler, uv + colOffset).g; } else{ outCol.b = image.Sample(textureSampler, uv + colOffset).b; } return outCol; } ' } $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 } } } } } |