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@ -3,16 +3,12 @@ using System.Collections.Generic;
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using ConformalDecals.Util;
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using TMPro;
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using UnityEngine;
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using UnityEngine.Events;
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using UnityEngine.Rendering;
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using Object = UnityEngine.Object;
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namespace ConformalDecals.Text {
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// TODO: Testing shows the job system is unnecessary, so remove job system code.
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/// Class handing text rendering.
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/// Is a singleton referencing a single gameobject in the scene which contains the TextMeshPro component
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[KSPAddon(KSPAddon.Startup.Instantly, true)]
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public class TextRenderer : MonoBehaviour {
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public static class TextRenderer {
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/// Texture format used for returned textures.
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/// Unfortunately due to how Unity textures work, this cannot be R8 or Alpha8,
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/// so theres always a superfluous green channel using memory
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@ -22,163 +18,73 @@ namespace ConformalDecals.Text {
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/// Overriden below to be ARGB32 on DirectX because DirectX is dumb
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public static RenderTextureFormat textRenderTextureFormat = RenderTextureFormat.R8;
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/// The text renderer object within the scene which contains the TextMeshPro component used for rendering.
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public static TextRenderer Instance {
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get {
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if (!_instance._isSetup) {
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_instance.Setup();
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}
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return _instance;
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}
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}
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/// Text Render unityevent, used with the job system to signal render completion
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[Serializable]
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public class TextRenderEvent : UnityEvent<TextRenderOutput> { }
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private const string ShaderName = "ConformalDecals/Text Blit";
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private const int MaxTextureSize = 4096;
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private const float FontSize = 100;
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private const float PixelDensity = 5;
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private static TextRenderer _instance;
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private bool _isSetup;
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private TextMeshPro _tmp;
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private Shader _blitShader;
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private static Shader _blitShader;
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private static Texture2D _blankTexture;
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private static readonly Dictionary<DecalText, TextRenderOutput> RenderCache = new Dictionary<DecalText, TextRenderOutput>();
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private static readonly Queue<TextRenderJob> RenderJobs = new Queue<TextRenderJob>();
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/// Update text using the job queue
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public static TextRenderJob UpdateText(DecalText oldText, DecalText newText, UnityAction<TextRenderOutput> renderFinishedCallback) {
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/// Update text immediately without using job queue
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public static TextRenderOutput UpdateText(DecalText oldText, DecalText newText) {
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if (newText == null) throw new ArgumentNullException(nameof(newText));
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var job = new TextRenderJob(oldText, newText, renderFinishedCallback);
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RenderJobs.Enqueue(job);
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return job;
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}
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if (!(oldText is null)) UnregisterText(oldText);
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/// Update text immediately without using job queue
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public static TextRenderOutput UpdateTextNow(DecalText oldText, DecalText newText) {
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if (newText == null) throw new ArgumentNullException(nameof(newText));
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// now that all old references are handled, begin rendering the new output
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if (!RenderCache.TryGetValue(newText, out var renderOutput)) {
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renderOutput = RenderText(newText);
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RenderCache.Add(newText, renderOutput);
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}
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return Instance.RunJob(new TextRenderJob(oldText, newText, null), out _);
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renderOutput.UserCount++;
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return renderOutput;
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}
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/// Unregister a user of a piece of text
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public static void UnregisterText(DecalText text) {
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if (text == null) throw new ArgumentNullException(nameof(text));
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if (RenderCache.TryGetValue(text, out var renderedText)) {
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renderedText.UserCount--;
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if (renderedText.UserCount <= 0) {
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RenderCache.Remove(text);
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Destroy(renderedText.Texture);
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var texture = renderedText.Texture;
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if (texture != _blankTexture) Object.Destroy(texture);
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}
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}
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}
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private void Start() {
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if (_instance != null) {
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Logging.LogError("Duplicate TextRenderer created???");
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}
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Logging.Log("Creating TextRenderer Object");
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_instance = this;
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DontDestroyOnLoad(gameObject);
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if (SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D11 || SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D12) {
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textRenderTextureFormat = RenderTextureFormat.ARGB32; // DirectX is dumb
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}
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if (!SystemInfo.SupportsTextureFormat(textTextureFormat)) {
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Logging.LogError($"Text texture format {textTextureFormat} not supported on this platform.");
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}
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if (!SystemInfo.SupportsRenderTextureFormat(textRenderTextureFormat)) {
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Logging.LogError($"Text texture format {textRenderTextureFormat} not supported on this platform.");
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}
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}
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/// Setup this text renderer instance for rendering
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private void Setup() {
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if (_isSetup) return;
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Logging.Log("Setting Up TextRenderer Object");
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_tmp = gameObject.AddComponent<TextMeshPro>();
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_tmp.renderer.enabled = false; // dont automatically render
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_blitShader = Shabby.Shabby.FindShader(ShaderName);
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if (_blitShader == null) Logging.LogError($"Could not find text blit shader named '{ShaderName}'");
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_isSetup = true;
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}
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/// Run a text render job
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private TextRenderOutput RunJob(TextRenderJob job, out bool renderNeeded) {
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if (!job.Needed) {
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renderNeeded = false;
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return null;
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}
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job.Start();
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Texture2D texture = null;
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if (job.OldText != null && RenderCache.TryGetValue(job.OldText, out var oldRender)) {
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// old output still exists
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oldRender.UserCount--;
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if (oldRender.UserCount <= 0) {
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// this is the only usage of this output, so we are free to re-render into the texture
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texture = oldRender.Texture;
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RenderCache.Remove(job.OldText);
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}
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}
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// now that all old references are handled, begin rendering the new output
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if (RenderCache.TryGetValue(job.NewText, out var renderOutput)) {
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renderNeeded = false;
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}
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else {
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renderNeeded = true;
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renderOutput = RenderText(job.NewText, texture);
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RenderCache.Add(job.NewText, renderOutput);
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}
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renderOutput.UserCount++;
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job.Finish(renderOutput);
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return renderOutput;
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}
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/// Render a piece of text to a given texture
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public TextRenderOutput RenderText(DecalText text, Texture2D texture) {
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public static TextRenderOutput RenderText(DecalText text) {
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if (text == null) throw new ArgumentNullException(nameof(text));
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if (_tmp == null) throw new InvalidOperationException("TextMeshPro object not yet created.");
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var tmpObject = new GameObject("Text Mesh Pro renderer");
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var tmp = tmpObject.AddComponent<TextMeshPro>();
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// SETUP TMP OBJECT FOR RENDERING
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_tmp.text = text.FormattedText;
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_tmp.font = text.Font.FontAsset;
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_tmp.fontStyle = text.Style | text.Font.FontStyle;
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_tmp.lineSpacing = text.LineSpacing;
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_tmp.characterSpacing = text.CharSpacing;
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_tmp.extraPadding = true;
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_tmp.enableKerning = true;
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_tmp.enableWordWrapping = false;
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_tmp.overflowMode = TextOverflowModes.Overflow;
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_tmp.alignment = TextAlignmentOptions.Center;
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_tmp.fontSize = FontSize;
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tmp.text = text.FormattedText;
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tmp.font = text.Font.FontAsset;
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tmp.fontStyle = text.Style | text.Font.FontStyle;
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tmp.lineSpacing = text.LineSpacing;
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tmp.characterSpacing = text.CharSpacing;
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tmp.extraPadding = true;
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tmp.enableKerning = true;
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tmp.enableWordWrapping = false;
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tmp.overflowMode = TextOverflowModes.Overflow;
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tmp.alignment = TextAlignmentOptions.Center;
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tmp.fontSize = FontSize;
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// GENERATE MESH
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_tmp.ClearMesh(false);
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_tmp.ForceMeshUpdate();
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tmp.ClearMesh(false);
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tmp.ForceMeshUpdate();
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var meshFilters = gameObject.GetComponentsInChildren<MeshFilter>();
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var meshFilters = tmpObject.GetComponentsInChildren<MeshFilter>();
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var meshes = new Mesh[meshFilters.Length];
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var materials = new Material[meshFilters.Length];
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@ -189,9 +95,9 @@ namespace ConformalDecals.Text {
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var renderer = meshFilters[i].gameObject.GetComponent<MeshRenderer>();
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meshes[i] = meshFilters[i].mesh;
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if (i == 0) meshes[i] = _tmp.mesh;
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if (i == 0) meshes[i] = tmp.mesh;
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materials[i] = Instantiate(renderer.material);
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materials[i] = Object.Instantiate(renderer.material);
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materials[i].shader = _blitShader;
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if (renderer == null) throw new FormatException($"Object {meshFilters[i].gameObject.name} has filter but no renderer");
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@ -209,15 +115,16 @@ namespace ConformalDecals.Text {
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var size = bounds.size * PixelDensity;
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size.x = Mathf.Max(size.x, 0.1f);
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size.y = Mathf.Max(size.y, 0.1f);
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var textureSize = new Vector2Int {
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x = Mathf.NextPowerOfTwo((int) size.x),
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y = Mathf.NextPowerOfTwo((int) size.y)
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};
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if (textureSize.x == 0 || textureSize.y == 0) {
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Logging.LogWarning("No text present or error in texture size calculation. Aborting.");
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return new TextRenderOutput(Texture2D.blackTexture, Rect.zero);
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Logging.LogError("No text present or error in texture size calculation. Aborting.");
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Object.Destroy(tmpObject);
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return new TextRenderOutput(_blankTexture, Rect.zero);
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}
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// make sure texture isnt too big, scale it down if it is
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@ -242,12 +149,7 @@ namespace ConformalDecals.Text {
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};
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// SETUP TEXTURE
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if (texture == null) {
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texture = new Texture2D(textureSize.x, textureSize.y, textTextureFormat, true);
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}
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else if (texture.width != textureSize.x || texture.height != textureSize.y || texture.format != textTextureFormat) {
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texture.Resize(textureSize.x, textureSize.y, textTextureFormat, true);
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}
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var texture = new Texture2D(textureSize.x, textureSize.y, textTextureFormat, false);
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// GENERATE PROJECTION MATRIX
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var halfSize = (Vector2) textureSize / PixelDensity / 2 / sizeRatio;
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@ -255,7 +157,7 @@ namespace ConformalDecals.Text {
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bounds.center.y - halfSize.y, bounds.center.y + halfSize.y, -1, 1);
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// GET RENDERTEX
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var renderTex = new RenderTexture(textureSize.x, textureSize.y, 0, textRenderTextureFormat, RenderTextureReadWrite.Linear) {autoGenerateMips = false};
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var renderTex = RenderTexture.GetTemporary(textureSize.x, textureSize.y, 0, textRenderTextureFormat, RenderTextureReadWrite.Linear);
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// RENDER
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Graphics.SetRenderTarget(renderTex);
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@ -271,28 +173,42 @@ namespace ConformalDecals.Text {
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}
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}
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// COPY TEXTURE BACK INTO RAM
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// COPY RENDERTEX INTO TEXTURE
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var prevRT = RenderTexture.active;
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RenderTexture.active = renderTex;
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texture.ReadPixels(new Rect(0, 0, textureSize.x, textureSize.y), 0, 0, true);
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texture.Apply();
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texture.ReadPixels(new Rect(0, 0, textureSize.x, textureSize.y), 0, 0, false);
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texture.Apply(false, true);
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RenderTexture.active = prevRT;
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GL.PopMatrix();
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// RELEASE RENDERTEX
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renderTex.Release();
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RenderTexture.Destroy(renderTex);
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RenderTexture.ReleaseTemporary(renderTex);
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// CLEAR SUBMESHES
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_tmp.text = "";
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// DESTROY THE RENDERER OBJECT
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Object.Destroy(tmpObject);
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for (int i = 0; i < transform.childCount; i++) {
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var child = transform.GetChild(i);
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Destroy(child.gameObject);
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return new TextRenderOutput(texture, window);
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}
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/// Setup shader and texture
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public static void ModuleManagerPostLoad() {
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if (SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D11 || SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D12) {
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textRenderTextureFormat = RenderTextureFormat.ARGB32; // DirectX is dumb
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}
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return new TextRenderOutput(texture, window);
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if (!SystemInfo.SupportsTextureFormat(textTextureFormat)) {
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Logging.LogError($"Text texture format {textTextureFormat} not supported on this platform.");
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}
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if (!SystemInfo.SupportsRenderTextureFormat(textRenderTextureFormat)) {
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Logging.LogError($"Text texture format {textRenderTextureFormat} not supported on this platform.");
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|
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}
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|
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_blankTexture = Texture2D.blackTexture;
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|
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_blitShader = Shabby.Shabby.FindShader(ShaderName);
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|
|
|
if (_blitShader == null) Logging.LogError($"Could not find text blit shader named '{ShaderName}'");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
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}
|
|
|
|
|
}
|
