39 lines
1.5 KiB
C#
39 lines
1.5 KiB
C#
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using System;
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namespace UnityEngine.Experimental.Rendering
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{
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internal readonly struct XRView
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{
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internal readonly Matrix4x4 projMatrix;
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internal readonly Matrix4x4 viewMatrix;
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internal readonly Matrix4x4 prevViewMatrix;
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internal readonly Rect viewport;
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internal readonly Mesh occlusionMesh;
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internal readonly int textureArraySlice;
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internal readonly Vector2 eyeCenterUV;
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internal readonly bool isPrevViewMatrixValid;
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internal XRView(Matrix4x4 projMatrix, Matrix4x4 viewMatrix, Matrix4x4 prevViewMatrix, bool isPrevViewMatrixValid, Rect viewport, Mesh occlusionMesh, int textureArraySlice)
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{
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this.projMatrix = projMatrix;
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this.viewMatrix = viewMatrix;
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this.prevViewMatrix = prevViewMatrix;
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this.viewport = viewport;
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this.occlusionMesh = occlusionMesh;
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this.textureArraySlice = textureArraySlice;
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this.isPrevViewMatrixValid = isPrevViewMatrixValid;
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eyeCenterUV = ComputeEyeCenterUV(projMatrix);
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}
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private static Vector2 ComputeEyeCenterUV(Matrix4x4 proj)
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{
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var projectionParameters = proj.decomposeProjection;
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float left = Math.Abs(projectionParameters.left);
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float right = Math.Abs(projectionParameters.right);
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float top = Math.Abs(projectionParameters.top);
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float bottom = Math.Abs(projectionParameters.bottom);
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return new Vector2(left / (right + left), top / (top + bottom));
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}
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}
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}
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