Commands/Shaders/Get-OBSFireworks2Shader.ps1
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function Get-OBSFireworks2Shader { [Alias('Set-OBSFireworks2Shader','Add-OBSFireworks2Shader')] param( # Set the Speed of OBSFireworks2Shader [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 = 'fireworks2' $ShaderNoun = 'OBSFireworks2Shader' if (-not $psBoundParameters['ShaderText']) { $psBoundParameters['ShaderText'] = $ShaderText = ' // based on https://www.shadertoy.com/view/4dBGRw uniform float Speed< string label = "Speed"; string widget_type = "slider"; float minimum = 0.0; float maximum = 200.0; float step = 1.0; > = 100.0; #ifndef OPENGL #define mat2 float2x2 #define mix lerp float mod(float x, float y) { return x - y * floor(x / y); } #endif //Creates a diagonal red-and-white striped pattern. float3 barberpole(float2 pos, float2 rocketpos){ float d = (pos.x-rocketpos.x)+(pos.y-rocketpos.y); float3 col=float3(1.0,1.0,1.0); d = mod(d*20.,2.0); if(d>1.0){ col=float3(1.0,0.0,0.0); } return col; } float4 rocket(float2 pos, float2 rocketpos){ float4 col = float4(0.0,0.0,0.0,0.0); float f = 0.; float absx= abs(rocketpos.x - pos.x); float absy = abs(rocketpos.y-pos.y); //wooden stick if(absx<0.01&&absy<0.22){ col=float4(1.0,0.5,0.5,1.0); } //Barberpole if(absx<0.05&&absy<0.15){ col=float4(barberpole(pos, rocketpos),1.0); } //Rocket Point float pointw=(rocketpos.y-pos.y-0.25)*-0.7; if((rocketpos.y-pos.y)>0.1){ f=smoothstep(pointw-0.001,pointw+0.001,absx); col=mix(float4(1.0,0.0,0.0,1.0),col, f); } //Shadow f =-.5 + smoothstep(-0.05, 0.05, (rocketpos.x-pos.x)); col.rgb *= 0.7+f; return col; } float rand(float val, float seed){ return cos(val*sin(val*seed)*seed); } float distance2( in float2 a, in float2 b ) { return dot(a-b,a-b); } float4 drawParticles(float2 pos, float3 particolor, float time, float2 cpos, float gravity, float seed, float timelength){ float4 col= float4(0.0,0.0,0.0,0.0); float2 pp = float2(1.0,0.0); mat2 rr = mat2( cos(1.0), -sin(1.0), sin(1.0), cos(1.0) ); for(float i=1.0;i<=128.0;i++){ float d=rand(i, seed); float fade=(i/128.0)*time; float2 particpos = cpos + time*pp*d; pp = mul(rr,pp); col.rgb = mix(particolor/fade, col, smoothstep(0.0, 0.0001, distance2(particpos, pos))); } col.rgb*=smoothstep(0.0,1.0,(timelength-time)/timelength); col.a = col.r+col.g+col.b; return col; } float4 drawFireworks(float time, float2 uv, float3 particolor, float seed){ float timeoffset = 2.0; float4 col=float4(0.0,0.0,0.0,0.0); if(time<=0.){ return col; } time *= Speed /100.0; if(mod(time, 6.0)>timeoffset){ col= drawParticles(uv, particolor, mod(time, 6.0)-timeoffset, float2(rand(ceil(time/6.0),seed),-0.5), 0.5, ceil(time/6.0), seed); }else{ col= rocket(uv*3., float2(3.*rand(ceil(time/6.0),seed),3.*(-0.5+(timeoffset-mod(time, 6.0))))); } return col; } float4 mainImage(VertData v_in) : TARGET { float2 uv =float2(1.0,1.0) - 2.0* v_in.uv; uv.y = -uv.y; uv.x *= uv_size.x/uv_size.y; float4 col = image.Sample(textureSampler, v_in.uv); //col.rgb += 0.1*uv.y; float4 c; c = drawFireworks(elapsed_time , uv,float3(1.0,0.1,0.1), 1.); col = mix(col, c, c.a); c = drawFireworks(elapsed_time-2.0, uv,float3(0.0,1.0,0.5), 2.); col = mix(col, c, c.a); c = drawFireworks(elapsed_time-4.0, uv,float3(1.0,1.0,0.1), 3.); col = mix(col, c, c.a); 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 } } } } } |