80 lines
2.8 KiB
C#
80 lines
2.8 KiB
C#
using System;
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using System.Linq;
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using System.Runtime.CompilerServices;
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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 VFXExpressionTextureWidth : VFXExpression
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{
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public VFXExpressionTextureWidth() : this(VFXTexture2DValue.Default)
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{}
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public VFXExpressionTextureWidth(VFXExpression texture)
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: base(Flags.InvalidOnGPU, new VFXExpression[1] { texture })
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{}
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sealed public override VFXExpressionOperation operation { get { return VFXExpressionOperation.TextureWidth; } }
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sealed public override VFXValueType valueType { get { return VFXValueType.Uint32; } }
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sealed protected override VFXExpression Evaluate(VFXExpression[] constParents)
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{
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var tex = constParents[0].Get<Texture>();
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return VFXValue.Constant<uint>(tex ? (uint)tex.width : 0u);
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}
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}
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class VFXExpressionTextureHeight : VFXExpression
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{
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public VFXExpressionTextureHeight() : this(VFXTexture2DValue.Default)
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{}
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public VFXExpressionTextureHeight(VFXExpression texture)
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: base(Flags.InvalidOnGPU, new VFXExpression[1] { texture })
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{}
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sealed public override VFXExpressionOperation operation { get { return VFXExpressionOperation.TextureHeight; } }
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sealed public override VFXValueType valueType { get { return VFXValueType.Uint32; } }
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sealed protected override VFXExpression Evaluate(VFXExpression[] constParents)
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{
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var tex = constParents[0].Get<Texture>();
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return VFXValue.Constant<uint>(tex ? (uint)tex.height : 0u);
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}
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}
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class VFXExpressionTextureDepth : VFXExpression
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{
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public VFXExpressionTextureDepth() : this(VFXTexture2DValue.Default)
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{}
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public VFXExpressionTextureDepth(VFXExpression texture)
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: base(Flags.InvalidOnGPU, new VFXExpression[1] { texture })
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{}
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sealed public override VFXExpressionOperation operation { get { return VFXExpressionOperation.TextureDepth; } }
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sealed public override VFXValueType valueType { get { return VFXValueType.Uint32; } }
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sealed protected override VFXExpression Evaluate(VFXExpression[] constParents)
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{
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var tex = constParents[0].Get<Texture>();
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uint depth = 0u;
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if (tex != null)
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{
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if (tex is Texture3D)
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depth = (uint)((Texture3D)tex).depth;
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else if (tex is Texture2DArray)
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depth = (uint)((Texture2DArray)tex).depth;
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else if (tex is CubemapArray)
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depth = (uint)((CubemapArray)tex).cubemapCount;
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else
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depth = 1u;
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}
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return VFXValue.Constant<uint>(depth);
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}
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}
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}
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