84 lines
2.2 KiB
C#
84 lines
2.2 KiB
C#
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using Godot;
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using System.Reflection;
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using System.Collections.Generic;
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using System.Linq;
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namespace Rokojori
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{
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[Tool]
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[GlobalClass]
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public partial class CameraDistanceFading:FadingModifier
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{
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public enum Mode
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{
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Near_Camera,
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Far_Camera
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}
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[Export]
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public Mode mode;
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public override bool IsSameType( FadingModifier modifier )
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{
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if ( modifier is CameraDistanceFading cdf )
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{
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return cdf.mode == mode;
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}
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return false;
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}
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public override List<ShaderCode> GetFadingCode( ShaderGenerationContext context, int offsetIndex, AlphaFadeMode parentFadeMode )
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{
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bool isNear = mode == Mode.Near_Camera;
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var alphaFadeMode = GetFadeMode( parentFadeMode );
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var suffix = GetSuffix( offsetIndex );
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if ( context.isIncludesPhase )
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{
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return IncludeNoiseLibrary().Concat( IncludeCamerasLibrary() );
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}
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var fadeOutVariable = isNear ? "nearCameraFadeOutDistance" : "farCameraFadeOutDistance";
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var fadeInVariable = isNear ? "nearCameraFadeInDistance" : "farCameraFadeInDistance";
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fadeOutVariable += suffix;
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fadeInVariable += suffix;
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if ( context.isVariablesPhase )
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{
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if ( isNear )
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{
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var nearFadeOutDistance = Uniform( fadeOutVariable, 0.0f, 0.1f, 5000 ).LineBreak();
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var nearFadeInDistance = Uniform( fadeInVariable, 0.0f, 0.5f, 5000 ).LineBreak();
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return ToCode( nearFadeOutDistance, nearFadeInDistance );
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}
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else
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{
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var farFadeInDistance = Uniform( fadeInVariable, 0.0f, 0.1f, 5000 ).LineBreak();
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var farFadeOutDistance = Uniform( fadeOutVariable, 0.0f, 0.5f, 5000 ).LineBreak();
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return ToCode( farFadeInDistance, farFadeOutDistance );
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}
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}
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if ( context.isFragmentPhase )
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{
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var prefix = isNear ? "near" : "far";
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var variable = $"{prefix}CameraDistanceFadeAlpha{suffix}";
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var code = $"float {variable} = cameraDistanceFade( VERTEX, {fadeOutVariable}, {fadeInVariable});\n";
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return ToCode( code.Indent( " ") ).Concat( ToCode( AlphaFade.Fragment( variable, alphaFadeMode ) ) );
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}
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return [];
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}
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}
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}
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