51 lines
2.0 KiB
C#
51 lines
2.0 KiB
C#
using System;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using UnityEditor;
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using UnityEditor.VFX.Operator;
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using UnityEngine;
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using UnityEngine.VFX;
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namespace UnityEditor.VFX
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{
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class VFXExpressionSampleSDF : VFXExpression
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{
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public VFXExpressionSampleSDF() : this(VFXTexture3DValue.Default, VFXValue<Vector3>.Default, VFXValue<Vector3>.Default, VFXValue<float>.Default)
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{
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}
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public VFXExpressionSampleSDF(VFXExpression texture, VFXExpression uvw, VFXExpression scale, VFXExpression mipLevel)
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: base(Flags.InvalidOnCPU, new VFXExpression[4] { texture, uvw, scale, mipLevel })
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{ }
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sealed public override VFXExpressionOperation operation { get { return VFXExpressionOperation.None; } }
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sealed public override VFXValueType valueType { get { return VFXValueType.Float; } }
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public sealed override string GetCodeString(string[] parents)
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{
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return string.Format("GetDistanceFromSDF(VFX_SAMPLER({0}), {1}, {2}, {3}) ", parents[0], parents[1], parents[2], parents[3]);
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}
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}
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class VFXExpressionSampleSDFNormal : VFXExpression
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{
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public VFXExpressionSampleSDFNormal() : this(VFXTexture3DValue.Default, VFXValue<Matrix4x4>.Default, VFXValue<Vector3>.Default, VFXValue<float>.Default)
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{
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}
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public VFXExpressionSampleSDFNormal(VFXExpression texture, VFXExpression inverseTRS, VFXExpression uvw, VFXExpression mipLevel)
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: base(Flags.InvalidOnCPU, new VFXExpression[4] { texture, inverseTRS, uvw, mipLevel })
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{ }
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sealed public override VFXExpressionOperation operation { get { return VFXExpressionOperation.None; } }
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sealed public override VFXValueType valueType { get { return VFXValueType.Float3; } }
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public sealed override string GetCodeString(string[] parents)
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{
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return string.Format("VFXSafeNormalize(mul(float4(GetNormalFromSDF(VFX_SAMPLER({0}), {2}, {3}),0.0f), {1}).xyz )", parents[0], parents[1], parents[2], parents[3]);
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}
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}
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}
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