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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
44 lines
1.2 KiB
C#
44 lines
1.2 KiB
C#
using Sandbox.Rendering;
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namespace Sandbox;
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/// <summary>
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/// Applies a chromatic aberration effect to the camera
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/// </summary>
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[Title( "Chromatic Aberration" )]
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[Category( "Post Processing" )]
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[Icon( "zoom_out_map" )]
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public sealed class ChromaticAberration : BasePostProcess<ChromaticAberration>
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{
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/// <summary>
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/// Enable chromatic aberration
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/// </summary>
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[Property, Range( 0, 1 )] public float Scale { get; set; } = 0.33f;
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/// <summary>
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/// The pixel offset for each color channel. These values should
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/// be very small as it's in UV space. (0.004 for example)
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/// X = Red
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/// Y = Green
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/// Z = Blue
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/// </summary>
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[Property] public Vector3 Offset { get; set; } = new Vector3( 6f, 2f, 4.0f );
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private static readonly Material Shader = Material.FromShader( "shaders/postprocess/pp_chromaticaberration.shader" );
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public override void Render()
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{
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float scale = GetWeighted( x => x.Scale );
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Vector3 offset = GetWeighted( x => x.Offset );
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if ( scale <= 0f )
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return;
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Attributes.Set( "scale", scale );
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Attributes.Set( "amount", offset / 1000.0f );
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var blit = BlitMode.WithBackbuffer( Shader, Stage.AfterPostProcess, 1000, false );
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Blit( blit, "ChromaticAberration" );
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}
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}
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