71 lines
1.7 KiB
C#
71 lines
1.7 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 DissolveFading:FadingModifier
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{
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[Export]
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public string UV = "UV";
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[Export]
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public bool srgb = true;
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[Export]
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public bool repeat = true;
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[Export]
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public TextureModule.TextureFilter filter;
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[Export]
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public TextureModule.TextureDefault textureDefault = TextureModule.TextureDefault.White;
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public override List<ShaderCode> GetFadingCode( ShaderGenerationContext context, int offsetIndex, AlphaFadeMode parentFadeMode )
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{
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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 IncludeMathLibrary();
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}
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if ( context.isVariablesPhase )
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{
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var hints = TextureModule.GetTextureHints( srgb, false, repeat, filter, textureDefault );
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var code =
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$@"
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uniform float dissolveState{suffix}:hint_range(0,1) = 1.0f;
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uniform sampler2D dissolveTexture{suffix}:{hints.Join()};
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";
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return ToCode( code.Indent( " " ) );
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}
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if ( context.isFragmentPhase )
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{
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var code =
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$@"
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float sampledDissolveTexture{suffix} = texture( dissolveTexture{suffix}, {UV} ).r;
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float dissolveAlpha{suffix} = clamp01( sampledDissolveTexture + ( dissolveState{suffix} * 2.0 - 1.0 ) );
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";
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return ToCode( code.Indent( " " ) ).Concat( ToCode( AlphaFade.Fragment( "dissolveAlpha" + suffix, 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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