64 lines
1.6 KiB
C#
64 lines
1.6 KiB
C#
|
using Godot;
|
||
|
|
using System.Reflection;
|
||
|
|
using System.Collections.Generic;
|
||
|
|
|
||
|
|
namespace Rokojori
|
||
|
|
{
|
||
|
|
[Tool]
|
||
|
|
[GlobalClass]
|
||
|
|
public partial class FresnelMask:SpatialMask
|
||
|
|
{
|
||
|
|
[Export]
|
||
|
|
public string name = "FresnelMask";
|
||
|
|
|
||
|
|
|
||
|
|
public override List<ShaderCode> GetMaskCode( ShaderGenerationContext context, string contextName, string maskName )
|
||
|
|
{
|
||
|
|
var prefix = contextName + name;
|
||
|
|
var uniformGroup = contextName + "FresnelMask";
|
||
|
|
|
||
|
|
if ( ShaderPhase.Includes == context.phase )
|
||
|
|
{
|
||
|
|
return IncludeLightLibrary();
|
||
|
|
}
|
||
|
|
else if ( ShaderPhase.Variables == context.phase )
|
||
|
|
{
|
||
|
|
var fresnelVariablesCode =
|
||
|
|
|
||
|
|
$@"
|
||
|
|
uniform float {prefix}FresnelZOffset = 0.0f;
|
||
|
|
uniform float {prefix}FresnelPower = 1.0f;
|
||
|
|
uniform float {prefix}FresnelPostScale = 1.0f;
|
||
|
|
uniform float {prefix}FresnelPostOffset = 0.0f;
|
||
|
|
uniform bool {prefix}FresnelInverse = false;
|
||
|
|
|
||
|
|
";
|
||
|
|
|
||
|
|
return AsUniformGroup( uniformGroup, ToCode( fresnelVariablesCode.Indent( "" ) ) );
|
||
|
|
}
|
||
|
|
else if ( context.isFragmentPhase )
|
||
|
|
{
|
||
|
|
var code =
|
||
|
|
@$"
|
||
|
|
|
||
|
|
{maskName} = clamp01( fresnelNormalizedFromViewAdvanced(
|
||
|
|
NORMAL,
|
||
|
|
{prefix}FresnelZOffset,
|
||
|
|
{prefix}FresnelPower,
|
||
|
|
{prefix}FresnelPostScale,
|
||
|
|
{prefix}FresnelPostOffset
|
||
|
|
) );
|
||
|
|
|
||
|
|
if ( ! {prefix}FresnelInverse )
|
||
|
|
{{ {maskName} = 1.0 - {maskName}; }}
|
||
|
|
|
||
|
|
|
||
|
|
;";
|
||
|
|
return ToCode( code.Indent( " " ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|