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82b5852625
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6e2f9688ed
@ -3,8 +3,6 @@ using System.Collections.Generic;
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using System.Diagnostics;
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using UnityEngine;
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using System.Runtime.InteropServices;
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using System.IO;
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@ -102,20 +100,18 @@ public class RT3script : MonoBehaviour
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}
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//encode into pixels this camera's coordinates
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var encodedTransform = new Color[32];
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var encodedTransform = new Color[256];
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var tr = cameraList[i].transform.localToWorldMatrix;
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uint floatbits = FloatToIntBits(tr[1,1]);
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for (int j = 0; j < 32; j++) {
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for (int j = 0; j < 256; j++) {
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//this logic does a bitwise check on the length value at bit j
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// use little-endian (ends with least significant bit on the right)
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if (((floatbits >> ((31)-j)) & 1)==1) {
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if ((((int)tr[0,0] >> j) & 1)==1) {
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encodedTransform[j] = Color.white;
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}
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else {
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encodedTransform[j] = Color.black;
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}
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}
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outputImage.SetPixels((256*i), outputImage.height-2,32,1, encodedTransform);
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outputImage.SetPixels((256*i),outputImage.height-2,256,1, encodedTransform);
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//encode into pixels transform matrix for this camera
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outputImage.Apply();
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@ -130,30 +126,6 @@ public class RT3script : MonoBehaviour
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frameCount += 1;
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}
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}
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// inverse in javascript of this:
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint32
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// // Create an ArrayBuffer with 32bits (4 bytes)
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// const buffer = new ArrayBuffer(4);
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// const view = new DataView(buffer);
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// view.setUint32(0, 1057279852); // Max unsigned 32-bit integer
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// console.log(view.getFloat32(0));
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// Based on this: https://stackoverflow.com/a/16822144
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[StructLayout(LayoutKind.Explicit)]
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private struct FloatAndUIntUnion {
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// The memort layout of this struct looks like this
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// but both pointers refer to the same memory address.
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// UInt32Bits: IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
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// FloatValue: SEEEEEEEEFFFFFFFFFFFFFFFFFFFFFFF
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[FieldOffset(0)] public uint UInt32Bits;
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[FieldOffset(0)] public float FloatValue;
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}
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public static uint FloatToIntBits(float value) {
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FloatAndUIntUnion f2i = default(FloatAndUIntUnion);
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f2i.FloatValue = value; // write as float
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return f2i.UInt32Bits; // read back as int
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}
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void OnDestroy()
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