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12affe5ccb
* Make SpriteBatchSceneObject shaders static, so we don't create them per instance * Avoid per frame shader/material creation in PostProcessing * Avoid per frame shader/material creation in HudPainter * Move a few more compute shaders into static members * Reduce allocations in NormalizeFilename * Reduce string allocations in Material.FromShader
36 lines
935 B
C#
36 lines
935 B
C#
using Sandbox.Rendering;
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namespace Sandbox;
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/// <summary>
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/// Applies a film grain effect to the camera
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/// </summary>
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[Title( "FilmGrain" )]
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[Category( "Post Processing" )]
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[Icon( "grain" )]
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public sealed class FilmGrain : BasePostProcess<FilmGrain>
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{
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[Range( 0, 1 )]
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[Property] public float Intensity { get; set; } = 0.1f;
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[Range( 0, 1 )]
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[Property] public float Response { get; set; } = 0.5f;
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private static readonly Material Shader = Material.FromShader( "shaders/postprocess/pp_filmgrain.shader" );
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public override void Render()
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{
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float intensity = GetWeighted( x => x.Intensity );
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if ( intensity.AlmostEqual( 0.0f ) ) return;
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float response = GetWeighted( x => x.Response, 1 );
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Attributes.Set( "intensity", intensity );
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Attributes.Set( "response", GetWeighted( x => x.Response, 1 ) );
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var blit = BlitMode.WithBackbuffer( Shader, Stage.AfterPostProcess, 200, false );
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Blit( blit, "FilmGrain" );
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}
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}
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