Initial Commit

2025-07-04 20:33:06 +03:00
commit 8f09347ae0
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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * Licensed under the Oculus SDK License Agreement (the "License");
+ * you may not use the Oculus SDK except in compliance with the License,
+ * which is provided at the time of installation or download, or which
+ * otherwise accompanies this software in either electronic or hard copy form.
+ *
+ * You may obtain a copy of the License at
+ *
+ * https://developer.oculus.com/licenses/oculussdk/
+ *
+ * Unless required by applicable law or agreed to in writing, the Oculus SDK
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using System;
+using System.Collections;
+using UnityEngine;
+
+namespace Oculus.Interaction.Demo
+{
+    [RequireComponent(typeof(MeshFilter))]
+    public class MeshBlit : MonoBehaviour
+    {
+        private static int MAIN_TEX = Shader.PropertyToID("_MainTex");
+
+        public Material material;
+        public RenderTexture renderTexture;
+
+        [SerializeField]
+        private float _blitsPerSecond = -1;
+        public float BlitsPerSecond
+        {
+            get
+            {
+                return _blitsPerSecond;
+            }
+            set
+            {
+                SetBlitsPerSecond(value);
+            }
+        }
+
+        private Mesh _mesh;
+        private WaitForSeconds _waitForSeconds;
+
+        private Mesh Mesh => _mesh ? _mesh : _mesh = GetComponent<MeshFilter>().sharedMesh;
+
+        private void OnEnable()
+        {
+            SetBlitsPerSecond(_blitsPerSecond);
+            StartCoroutine(BlitRoutine());
+
+            IEnumerator BlitRoutine()
+            {
+                while (true)
+                {
+                    yield return _waitForSeconds;
+                    Blit();
+                }
+            }
+        }
+
+        public void Blit()
+        {
+            if (renderTexture == null)
+            {
+                throw new NullReferenceException("MeshBlit.Blit must have a RenderTexture assigned");
+            }
+            if (material == null)
+            {
+                throw new NullReferenceException("MeshBlit.Blit must have a Material assigned");
+            }
+            if (Mesh == null)
+            {
+                throw new NullReferenceException("MeshBlit.Blit's MeshFilter has no mesh");
+            }
+
+            RenderTexture temp = RenderTexture.GetTemporary(renderTexture.descriptor);
+            Graphics.Blit(renderTexture, temp);
+
+            material.SetTexture(MAIN_TEX, temp);
+
+            var previous = RenderTexture.active;
+            RenderTexture.active = renderTexture;
+            material.SetPass(0);
+            Graphics.DrawMeshNow(Mesh, transform.localToWorldMatrix);
+            RenderTexture.active = previous;
+
+            material.SetTexture(MAIN_TEX, null);
+            RenderTexture.ReleaseTemporary(temp);
+        }
+
+        private void SetBlitsPerSecond(float value)
+        {
+            _blitsPerSecond = value;
+            _waitForSeconds = value > 0 ? new WaitForSeconds(1 / _blitsPerSecond) : null;
+        }
+    }
+}