C# CommandBuffer.Blit方法代码示例

	// Whenever any camera will render us, add a command buffer to do the work on it
	public void OnWillRenderObject()
	{
		var act = gameObject.activeInHierarchy && enabled;
		if (!act)
		{
			Cleanup();
			return;
		}

		var cam = Camera.current;
		if (!cam)
			return;

		CommandBuffer buf = null;
		// Did we already add the command buffer on this camera? Nothing to do then.
		if (m_Cameras.ContainsKey(cam))
			return;

		if (!m_Material)
		{
			m_Material = new Material(m_BlurShader);
			m_Material.hideFlags = HideFlags.HideAndDontSave;
		}

		buf = new CommandBuffer();
		buf.name = "Grab screen and blur";
		m_Cameras[cam] = buf;

		// copy screen into temporary RT
		int screenCopyID = Shader.PropertyToID("_ScreenCopyTexture");
		buf.GetTemporaryRT (screenCopyID, -1, -1, 0, FilterMode.Bilinear);
		buf.Blit (BuiltinRenderTextureType.CurrentActive, screenCopyID);

		// get two smaller RTs
		int blurredID = Shader.PropertyToID("_Temp1");
		int blurredID2 = Shader.PropertyToID("_Temp2");
		buf.GetTemporaryRT (blurredID, -2, -2, 0, FilterMode.Bilinear);
		buf.GetTemporaryRT (blurredID2, -2, -2, 0, FilterMode.Bilinear);

		// downsample screen copy into smaller RT, release screen RT
		buf.Blit (screenCopyID, blurredID);
		buf.ReleaseTemporaryRT (screenCopyID);

		// horizontal blur
		buf.SetGlobalVector("offsets", new Vector4(2.0f/Screen.width,0,0,0));
		buf.Blit (blurredID, blurredID2, m_Material);
		// vertical blur
		buf.SetGlobalVector("offsets", new Vector4(0,2.0f/Screen.height,0,0));
		buf.Blit (blurredID2, blurredID, m_Material);
		// horizontal blur
		buf.SetGlobalVector("offsets", new Vector4(4.0f/Screen.width,0,0,0));
		buf.Blit (blurredID, blurredID2, m_Material);
		// vertical blur
		buf.SetGlobalVector("offsets", new Vector4(0,4.0f/Screen.height,0,0));
		buf.Blit (blurredID2, blurredID, m_Material);

		buf.SetGlobalTexture("_GrabBlurTexture", blurredID);

		cam.AddCommandBuffer (CameraEvent.AfterSkybox, buf);
	}

    private void Awake() {
        int lowResRenderTarget = Shader.PropertyToID("_LowResRenderTarget");

        CommandBuffer cb = new CommandBuffer();

        cb.GetTemporaryRT(lowResRenderTarget, this.width, this.height, 0, FilterMode.Trilinear, RenderTextureFormat.ARGB32);

        // Blit the low-res texture into itself, to re-draw it with the current material
        cb.Blit(lowResRenderTarget, lowResRenderTarget, this.material);

        // Blit the low-res texture into the camera's target render texture, effectively rendering it to the entire screen
        cb.Blit(lowResRenderTarget, BuiltinRenderTextureType.CameraTarget);

        cb.ReleaseTemporaryRT(lowResRenderTarget);

        // Tell the camera to execute our CommandBuffer before the forward opaque pass - that is, just before normal geometry starts rendering
        this.GetComponent<Camera>().AddCommandBuffer(CameraEvent.BeforeForwardOpaque, cb);
    }

    void UpdateCommandBuffer()
    {
        var cam = GetComponent<Camera>();

        RenderSettings.fogColor = m_fog_color;

        if (m_quad == null)
        {
            m_quad = RaymarcherUtils.GenerateQuad();
        }

        bool reflesh_command_buffer = false;

        Vector2 reso = new Vector2(cam.pixelWidth, cam.pixelHeight);
        if(m_resolution_prev!=reso)
        {
            m_resolution_prev = reso;
            reflesh_command_buffer = true;
        }

        if (m_enable_adaptive_prev != m_enable_adaptive)
        {
            m_enable_adaptive_prev = m_enable_adaptive;
            reflesh_command_buffer = true;
        }
        if (m_dbg_show_steps_prev != m_dbg_show_steps)
        {
            m_dbg_show_steps_prev = m_dbg_show_steps;
            reflesh_command_buffer = true;
        }

        if (reflesh_command_buffer)
        {
            reflesh_command_buffer = false;
            ClearCommandBuffer();
        }

        if (m_cb_raymarch==null)
        {
            if (m_enable_adaptive)
            {
                RenderTargetIdentifier[] rt;

                m_cb_prepass = new CommandBuffer();
                m_cb_prepass.name = "Raymarcher Adaptive PrePass";

                int odepth      = Shader.PropertyToID("ODepth");
                int odepth_prev = Shader.PropertyToID("ODepthPrev");
                int ovelocity   = Shader.PropertyToID("OVelocity");
                int qdepth      = Shader.PropertyToID("QDepth");
                int qdepth_prev = Shader.PropertyToID("QDepthPrev");
                int hdepth      = Shader.PropertyToID("HDepth");
                int hdepth_prev = Shader.PropertyToID("HDepthPrev");
                int adepth      = Shader.PropertyToID("ADepth");
                int adepth_prev = Shader.PropertyToID("ADepthPrev");

                m_cb_prepass.GetTemporaryRT(odepth,     cam.pixelWidth / 8, cam.pixelHeight / 8, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(odepth_prev,cam.pixelWidth / 8, cam.pixelHeight / 8, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(ovelocity,  cam.pixelWidth / 8, cam.pixelHeight / 8, 0, FilterMode.Point, RenderTextureFormat.RHalf);
                m_cb_prepass.GetTemporaryRT(qdepth,     cam.pixelWidth / 4, cam.pixelHeight / 4, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(qdepth_prev,cam.pixelWidth / 4, cam.pixelHeight / 4, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(hdepth,     cam.pixelWidth / 2, cam.pixelHeight / 2, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(hdepth_prev,cam.pixelWidth / 2, cam.pixelHeight / 2, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(adepth,     cam.pixelWidth / 1, cam.pixelHeight / 1, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(adepth_prev,cam.pixelWidth / 1, cam.pixelHeight / 1, 0, FilterMode.Point, RenderTextureFormat.RFloat);

                rt = new RenderTargetIdentifier[2] { odepth, ovelocity };
                m_cb_prepass.SetGlobalTexture("g_depth_prev", odepth_prev);
                m_cb_prepass.SetRenderTarget(rt, odepth);
                m_cb_prepass.DrawMesh(m_quad, Matrix4x4.identity, m_internal_material, 0, 1);

                m_cb_prepass.Blit(odepth, odepth_prev);
                m_cb_prepass.SetGlobalTexture("g_velocity", ovelocity);

                m_cb_prepass.SetRenderTarget(qdepth);
                m_cb_prepass.SetGlobalTexture("g_depth", odepth);
                m_cb_prepass.SetGlobalTexture("g_depth_prev", qdepth_prev);
                m_cb_prepass.DrawMesh(m_quad, Matrix4x4.identity, m_internal_material, 0, 2);

                m_cb_prepass.Blit(qdepth, qdepth_prev);

                m_cb_prepass.SetRenderTarget(hdepth);
                m_cb_prepass.SetGlobalTexture("g_depth", qdepth);
                m_cb_prepass.SetGlobalTexture("g_depth_prev", hdepth_prev);
                m_cb_prepass.DrawMesh(m_quad, Matrix4x4.identity, m_internal_material, 0, 3);

                m_cb_prepass.Blit(hdepth, hdepth_prev);

                m_cb_prepass.SetRenderTarget(adepth);
                m_cb_prepass.SetGlobalTexture("g_depth", hdepth);
                m_cb_prepass.SetGlobalTexture("g_depth_prev", adepth_prev);
                m_cb_prepass.DrawMesh(m_quad, Matrix4x4.identity, m_internal_material, 0, 4);

                m_cb_prepass.Blit(adepth, adepth_prev);
                m_cb_prepass.SetGlobalTexture("g_depth", adepth);

                cam.AddCommandBuffer(CameraEvent.BeforeGBuffer, m_cb_prepass);
            }

            m_cb_raymarch = new CommandBuffer();
//.........这里部分代码省略.........

    void OnEnable()
    {
        System.IO.Directory.CreateDirectory(m_output_directory);
        m_cam = GetComponent<Camera>();
        m_quad = FrameCapturerUtils.CreateFullscreenQuad();
        m_mat_copy = new Material(m_sh_copy);
        if (m_cam.targetTexture != null)
        {
            m_mat_copy.EnableKeyword("OFFSCREEN");
        }

        if (m_capture_framebuffer)
        {
            int tid = Shader.PropertyToID("_TmpFrameBuffer");
            m_cb = new CommandBuffer();
            m_cb.name = "ExrCapturer: copy frame buffer";
            m_cb.GetTemporaryRT(tid, -1, -1, 0, FilterMode.Point);
            m_cb.Blit(BuiltinRenderTextureType.CurrentActive, tid);
            // tid は意図的に開放しない
            m_cam.AddCommandBuffer(CameraEvent.AfterEverything, m_cb);

            m_frame_buffer = new RenderTexture(m_cam.pixelWidth, m_cam.pixelHeight, 0, RenderTextureFormat.ARGBHalf);
            m_frame_buffer.wrapMode = TextureWrapMode.Repeat;
            m_frame_buffer.Create();
        }

        if (m_capture_gbuffer &&
            m_cam.renderingPath != RenderingPath.DeferredShading &&
            (m_cam.renderingPath == RenderingPath.UsePlayerSettings && PlayerSettings.renderingPath != RenderingPath.DeferredShading))
        {
            Debug.Log("ExrCapturer: Rendering path must be deferred to use capture_gbuffer mode.");
            m_capture_gbuffer = false;
        }
        if(m_capture_gbuffer)
        {
            m_gbuffer = new RenderTexture[4];
            m_rt_gbuffer = new RenderBuffer[4];
            for (int i = 0; i < m_gbuffer.Length; ++i)
            {
                m_gbuffer[i] = new RenderTexture(m_cam.pixelWidth, m_cam.pixelHeight, 0, RenderTextureFormat.ARGBHalf);
                m_gbuffer[i].filterMode = FilterMode.Point;
                m_gbuffer[i].Create();
                m_rt_gbuffer[i] = m_gbuffer[i].colorBuffer;
            }
            {
                RenderTextureFormat format = m_depth_format == DepthFormat.Half ? RenderTextureFormat.RHalf : RenderTextureFormat.RFloat;
                m_depth = new RenderTexture(m_cam.pixelWidth, m_cam.pixelHeight, 0, format);
                m_depth.filterMode = FilterMode.Point;
                m_depth.Create();
            }
        }

        FrameCapturer.fcExrConfig conf;
        conf.max_active_tasks = m_max_active_tasks;
        m_exr = FrameCapturer.fcExrCreateContext(ref conf);
    }

        void InitializeContext()
        {
            m_num_video_frames = 0;

            // initialize scratch buffer
            UpdateScratchBuffer();

            // initialize context and stream
            {
                fcAPI.fcGifConfig conf;
                conf.width = m_scratch_buffer.width;
                conf.height = m_scratch_buffer.height;
                conf.num_colors = Mathf.Clamp(m_numColors, 1, 256);
                conf.max_active_tasks = 0;
                m_ctx = fcAPI.fcGifCreateContext(ref conf);
            }

            // initialize command buffer
            {
                int tid = Shader.PropertyToID("_TmpFrameBuffer");
                m_cb = new CommandBuffer();
                m_cb.name = "GifRecorder: copy frame buffer";
                m_cb.GetTemporaryRT(tid, -1, -1, 0, FilterMode.Bilinear);
                m_cb.Blit(BuiltinRenderTextureType.CurrentActive, tid);
                m_cb.SetRenderTarget(m_scratch_buffer);
                m_cb.DrawMesh(m_quad, Matrix4x4.identity, m_mat_copy, 0, 0);
                m_cb.ReleaseTemporaryRT(tid);
            }
        }

    // Whenever any camera will render us, add a command buffer to do the work on it
    public void OnWillRenderObject() {   // REQUIRES THIS OBJ TO HAVE MESHRENDERER COMPONENT!!!!
        var act = gameObject.activeInHierarchy && enabled;
        if (!act) {
            Cleanup();
            return;
        }

        var cam = Camera.current;
        if (!cam)
            return;

        CommandBuffer buf = null;  // clear CommandBuffer... why does this have to be done every frame?
                                   // Did we already add the command buffer on this camera? Nothing to do then.
        if (m_Cameras.ContainsKey(cam))
            return;

        //if (!m_Material) {
        //    m_Material = new Material(m_BlurShader);
        //    m_Material.hideFlags = HideFlags.HideAndDontSave;  // not sure what this does -- prevents garbage collection??
        //}

        buf = new CommandBuffer();
        buf.name = "TestDrawProcedural";
        m_Cameras[cam] = buf;  // fill in dictionary entry for this Camera

        // START!!!
        // Canvas First:
        canvasMaterial.SetColor("_Color", Color.gray);  // initialize canvas        
        canvasMaterial.SetTexture("_DepthTex", canvasDepthTex);
        canvasMaterial.SetFloat("_MaxDepth", 1.0f);

        // Create RenderTargets:
        int colorReadID = Shader.PropertyToID("_ColorTextureRead");
        int colorWriteID = Shader.PropertyToID("_ColorTextureWrite");
        int depthReadID = Shader.PropertyToID("_DepthTextureRead");
        int depthWriteID = Shader.PropertyToID("_DepthTextureWrite");
        buf.GetTemporaryRT(colorReadID, -1, -1, 0, FilterMode.Bilinear);
        buf.GetTemporaryRT(colorWriteID, -1, -1, 0, FilterMode.Bilinear);
        buf.GetTemporaryRT(depthReadID, -1, -1, 0, FilterMode.Bilinear);
        buf.GetTemporaryRT(depthWriteID, -1, -1, 0, FilterMode.Bilinear);

        RenderTargetIdentifier[] mrt = { colorWriteID, depthWriteID };  // Define multipleRenderTarget so I can render to color AND depth
        buf.SetRenderTarget(mrt, BuiltinRenderTextureType.CameraTarget);  // Set render Targets
        buf.ClearRenderTarget(true, true, Color.white, 1.0f);  // clear -- needed???
        buf.DrawMesh(CreateFullscreenQuad(mainCam), Matrix4x4.identity, canvasMaterial);   // Write into canvas Color & Depth buffers
        
        // Copy results into Read buffers for next pass:
        buf.Blit(colorWriteID, colorReadID);
        buf.Blit(depthWriteID, depthReadID);

        // Gesso/Primer Pass:
        gessoMaterial.SetPass(0);
        gessoMaterial.SetColor("_Color", new Color(0.19f, 0.192f, 0.194f, 1.0f));
        buf.SetGlobalTexture("_ColorReadTex", colorReadID);
        buf.SetGlobalTexture("_DepthReadTex", depthReadID);
        buf.SetRenderTarget(mrt, BuiltinRenderTextureType.CameraTarget);  // Set render Targets
        buf.DrawMesh(CreateFullscreenQuad(mainCam), Matrix4x4.identity, gessoMaterial);
        // Copy results into Read buffers for next pass:
        buf.Blit(colorWriteID, colorReadID);
        buf.Blit(depthWriteID, depthReadID);

        // MAIN BRUSHSTROKE CONTENTS PASS!!!:
        strokeMaterial.SetPass(0);
        strokeMaterial.SetColor("_Color", brushStrokeColor);
        strokeMaterial.SetVector("_Size", size);
        strokeMaterial.SetBuffer("strokeDataBuffer", strokeBuffer);
        strokeMaterial.SetBuffer("quadPointsBuffer", quadPointsBuffer);
        buf.SetGlobalTexture("_ColorReadTex", colorReadID);
        buf.SetGlobalTexture("_DepthReadTex", depthReadID);
        buf.SetRenderTarget(colorWriteID);
        buf.SetGlobalTexture("_FrameBufferTexture", BuiltinRenderTextureType.CameraTarget); // Copy the Contents of FrameBuffer into brushstroke material so it knows what color it should be
        buf.DrawProcedural(Matrix4x4.identity, strokeMaterial, 0, MeshTopology.Triangles, 6, strokeBuffer.count);   // Apply brushstrokes

        // DISPLAY TO SCREEN:
        buf.Blit(colorWriteID, BuiltinRenderTextureType.CameraTarget);   // copy canvas target into main displayTarget so it is what the player sees

        // apply the commandBuffer
        cam.AddCommandBuffer(CameraEvent.AfterFinalPass, buf);  
        

        
        //buf.SetRenderTarget(canvasRT);
        //buf.ClearRenderTarget(true, true, Color.black, 1.0f);
        //int canvasID = Shader.PropertyToID("_CanvasTexture");
        //int tempID = Shader.PropertyToID("_TempTexture");
        //buf.GetTemporaryRT(canvasID, -1, -1, 0, FilterMode.Bilinear);  // Create a Temporary RenderTarget for the "canvas"
        //buf.GetTemporaryRT(tempID, -1, -1, 0, FilterMode.Bilinear);  // Create a Temporary RenderTarget for the "canvas"
        //buf.SetRenderTarget(canvasID);  // Set commandBuffer target to this "canvas" so the DrawProcedural will apply to this
        //buf.ClearRenderTarget(true, true, Color.white, 1.0f);  // Clear the target each frame and rebuild
        //buf.Blit(canvasID, tempID);  // copy into temporary buffer
        //buf.Blit(tempID, canvasID, gessoBlitMaterial);  // copy back into renderTarget, apply Gesso Primer
        //buf.SetGlobalTexture("_FrameBufferTexture", BuiltinRenderTextureType.CameraTarget);  // Copy the Contents of FrameBuffer into brushstroke material so it knows what color it should be
        //buf.DrawProcedural(Matrix4x4.identity, strokeMaterial, 0, MeshTopology.Triangles, 6, strokeBuffer.count);   // Apply brushstrokes

        // MRT example:
        //RenderTargetIdentifier[] mrt = { BuiltinRenderTextureType.GBuffer0, BuiltinRenderTextureType.GBuffer2 };
        //buf.SetRenderTarget(mrt, BuiltinRenderTextureType.CameraTarget);

        //buf.Blit(canvasID, BuiltinRenderTextureType.CameraTarget);   // copy canvas target into main displayTarget so it is what the player sees
//.........这里部分代码省略.........

    private void GenerateNormalBlurMaterialAndCommandBuffer(int blurredNormalBuffer, int blurredNormalsBufferIdTemp,
        out Material blurMaterial, out CommandBuffer blurCommandBuffer) {
        blurMaterial = new Material(DeferredBlurredNormals);
        blurMaterial.hideFlags = HideFlags.HideAndDontSave;

        blurCommandBuffer = new CommandBuffer();
        blurCommandBuffer.name = c_normalBufferName;
        blurCommandBuffer.GetTemporaryRT(blurredNormalsBufferIdTemp, -1, -1, 0, FilterMode.Point,
            RenderTextureFormat.ARGB2101010);
        blurCommandBuffer.GetTemporaryRT(blurredNormalBuffer, -1, -1, 0, FilterMode.Point, RenderTextureFormat.ARGB2101010);

        blurCommandBuffer.Blit(BuiltinRenderTextureType.GBuffer2, blurredNormalsBufferIdTemp, blurMaterial, 0);
        blurCommandBuffer.Blit(blurredNormalsBufferIdTemp, blurredNormalBuffer, blurMaterial, 1);

        blurCommandBuffer.Blit(blurredNormalBuffer, blurredNormalsBufferIdTemp, blurMaterial, 0);
        blurCommandBuffer.Blit(blurredNormalsBufferIdTemp, blurredNormalBuffer, blurMaterial, 1);
    }

    void OnEnable()
    {
        m_cam = GetComponent<Camera>();
        m_quad = FrameCapturerUtils.CreateFullscreenQuad();
        m_mat_copy = new Material(m_sh_copy);
        if (m_cam.targetTexture != null)
        {
            m_mat_copy.EnableKeyword("OFFSCREEN");
        }

        {
            int tid = Shader.PropertyToID("_TmpFrameBuffer");
            m_cb = new CommandBuffer();
            m_cb.name = "GifCapturer: copy frame buffer";
            m_cb.GetTemporaryRT(tid, -1, -1, 0, FilterMode.Point);
            m_cb.Blit(BuiltinRenderTextureType.CurrentActive, tid);
            // tid は意図的に開放しない
            m_cam.AddCommandBuffer(CameraEvent.AfterEverything, m_cb);
        }
        ResetRecordingState();
    }

	public void Initialize() {
		if (combufPreLight == null) {
			int propsBufferID = Shader.PropertyToID("_UBERPropsBuffer");

            // prepare material
            if (CopyPropsMat == null)
            {
                if (CopyPropsMat != null)
                {
                    DestroyImmediate(CopyPropsMat);
                }
                CopyPropsMat = new Material(Shader.Find("Hidden/UBER_CopyPropsTexture"));
                CopyPropsMat.hideFlags = HideFlags.DontSave;
            }

            // take a copy of emission buffer.a where UBER stores its props (translucency, self-shadowing, wetness)
            combufPreLight = new CommandBuffer();
			combufPreLight.name="UBERPropsPrelight";
            combufPreLight.GetTemporaryRT(propsBufferID, -1, -1, 0, FilterMode.Point, RenderTextureFormat.RHalf);
            combufPreLight.Blit(BuiltinRenderTextureType.CameraTarget, propsBufferID, CopyPropsMat);
            
			// release temp buffer
			combufPostLight = new CommandBuffer();
			combufPostLight.name="UBERPropsPostlight";
            combufPostLight.ReleaseTemporaryRT (propsBufferID);
		}
    }

	void RenderReprojectionVectors( CommandBuffer commandBuffer, RenderTexture destination, float scale )
	{
		commandBuffer.SetGlobalMatrix( "_AM_MATRIX_CURR_REPROJ", m_baseCamera.PrevViewProjMatrix * m_baseCamera.InvViewProjMatrix );
		commandBuffer.SetGlobalFloat( "_AM_MOTION_SCALE", scale );

		RenderTexture dummy = null;
		commandBuffer.Blit( new RenderTargetIdentifier( dummy ), destination, m_reprojectionMaterial );
	}

        void OnEnable()
        {
            m_outputDir.CreateDirectory();
            m_quad = FrameCapturerUtils.CreateFullscreenQuad();
            m_mat_copy = new Material(m_shCopy);

            var cam = GetComponent<Camera>();
            if (cam.targetTexture != null)
            {
                m_mat_copy.EnableKeyword("OFFSCREEN");
            }

            #if UNITY_EDITOR
            if (m_captureGBuffer && !FrameCapturerUtils.IsRenderingPathDeferred(cam))
            {
                Debug.LogWarning("PngRecorder: Rendering Path must be deferred to use Capture GBuffer mode.");
                m_captureGBuffer = false;
            }
            #endif // UNITY_EDITOR

            // initialize png context
            fcAPI.fcPngConfig conf = fcAPI.fcPngConfig.default_value;
            m_ctx = fcAPI.fcPngCreateContext(ref conf);

            // initialize render targets
            {
                m_frame_buffer = new RenderTexture(cam.pixelWidth, cam.pixelHeight, 0, RenderTextureFormat.ARGBHalf);
                m_frame_buffer.wrapMode = TextureWrapMode.Repeat;
                m_frame_buffer.Create();

                var formats = new RenderTextureFormat[7] {
                    RenderTextureFormat.ARGBHalf,   // albedo (RGB)
                    RenderTextureFormat.RHalf,      // occlusion (R)
                    RenderTextureFormat.ARGBHalf,   // specular (RGB)
                    RenderTextureFormat.RHalf,      // smoothness (R)
                    RenderTextureFormat.ARGBHalf,   // normal (RGB)
                    RenderTextureFormat.ARGBHalf,   // emission (RGB)
                    RenderTextureFormat.RHalf,      // depth (R)
                };
                m_gbuffer = new RenderTexture[7];
                for (int i = 0; i < m_gbuffer.Length; ++i)
                {
                    // last one is depth (1 channel)
                    m_gbuffer[i] = new RenderTexture(cam.pixelWidth, cam.pixelHeight, 0, formats[i]);
                    m_gbuffer[i].filterMode = FilterMode.Point;
                    m_gbuffer[i].Create();
                }
            }

            // initialize command buffers
            {
                int tid = Shader.PropertyToID("_TmpFrameBuffer");

                m_cb_copy_fb = new CommandBuffer();
                m_cb_copy_fb.name = "PngRecorder: Copy FrameBuffer";
                m_cb_copy_fb.GetTemporaryRT(tid, -1, -1, 0, FilterMode.Point);
                m_cb_copy_fb.Blit(BuiltinRenderTextureType.CurrentActive, tid);
                m_cb_copy_fb.SetRenderTarget(m_frame_buffer);
                m_cb_copy_fb.DrawMesh(m_quad, Matrix4x4.identity, m_mat_copy, 0, 0);
                m_cb_copy_fb.ReleaseTemporaryRT(tid);

                m_cb_copy_gb = new CommandBuffer();
                m_cb_copy_gb.name = "PngRecorder: Copy G-Buffer";
                m_cb_copy_gb.SetRenderTarget(
                    new RenderTargetIdentifier[] { m_gbuffer[0], m_gbuffer[1], m_gbuffer[2], m_gbuffer[3] }, m_gbuffer[0]);
                m_cb_copy_gb.DrawMesh(m_quad, Matrix4x4.identity, m_mat_copy, 0, 4);
                m_cb_copy_gb.SetRenderTarget(
                    new RenderTargetIdentifier[] { m_gbuffer[4], m_gbuffer[5], m_gbuffer[6], m_gbuffer[3] }, m_gbuffer[0]);
                m_cb_copy_gb.DrawMesh(m_quad, Matrix4x4.identity, m_mat_copy, 0, 5);
            }
        }

	private void UpdateVerticesGPU( CommandBuffer updateCB, bool starting )
	{
		if ( !starting && m_wasVisible )
		{
			AmplifyMotionEffectBase.DiscardContents( m_gpuPrevVertices );
			updateCB.Blit( new RenderTargetIdentifier( m_gpuCurrVertices ), m_gpuPrevVertices );
		}

		updateCB.SetGlobalMatrix( "_AM_WORLD_TO_LOCAL_MATRIX", m_worldToLocalMatrix );

		AmplifyMotionEffectBase.DiscardContents( m_gpuCurrVertices );
		RenderTexture dummy = null;
		updateCB.Blit( new RenderTargetIdentifier( dummy ), m_gpuCurrVertices, m_gpuSkinDeformMat, Mathf.Min( m_weightCount - 1, 2 ) );

		if ( starting || !m_wasVisible )
		{
			AmplifyMotionEffectBase.DiscardContents( m_gpuPrevVertices );
			updateCB.Blit( new RenderTargetIdentifier( m_gpuCurrVertices ), m_gpuPrevVertices );
		}
	}

//.........这里部分代码省略.........

            /** The height in pixels of a 1m object if viewed from 1m away. */
            float pixelsPerMeterAtOneMeter = sWidth / (-2.0f * (float)(Math.Tan(camera_.fieldOfView / 180.0 * Math.PI * 0.5)));

            material.SetFloat("_PixelsPerMeterAtOneMeter", pixelsPerMeterAtOneMeter);
            material.SetFloat("_ScreenEdgeFading", settings.screenEdgeMask.intensity);
            material.SetFloat("_ReflectionBlur", settings.reflectionSettings.reflectionBlur);
            material.SetFloat("_MaxRayTraceDistance", settings.reflectionSettings.maxDistance);
            material.SetFloat("_FadeDistance", settings.intensitySettings.fadeDistance);
            material.SetFloat("_LayerThickness", settings.reflectionSettings.widthModifier);
            material.SetFloat("_SSRMultiplier", settings.intensitySettings.reflectionMultiplier);
            material.SetFloat("_FresnelFade", settings.intensitySettings.fresnelFade);
            material.SetFloat("_FresnelFadePower", settings.intensitySettings.fresnelFadePower);

            Matrix4x4 P = camera_.projectionMatrix;
            Vector4 projInfo = new Vector4
                    ((-2.0f / (sWidth * P[0])),
                    (-2.0f / (sHeight * P[5])),
                    ((1.0f - P[2]) / P[0]),
                    ((1.0f + P[6]) / P[5]));

            Vector3 cameraClipInfo = (float.IsPositiveInfinity(camera_.farClipPlane)) ?
                new Vector3(camera_.nearClipPlane, -1.0f, 1.0f) :
                new Vector3(camera_.nearClipPlane * camera_.farClipPlane, camera_.nearClipPlane - camera_.farClipPlane, camera_.farClipPlane);

            material.SetVector("_ReflectionBufferSize", new Vector2(rtW, rtH));
            material.SetVector("_ScreenSize", new Vector2(sWidth, sHeight));
            material.SetVector("_InvScreenSize", new Vector2((float)(1.0f / sWidth), (float)(1.0f / sHeight)));
            material.SetVector("_ProjInfo", projInfo); // used for unprojection

            material.SetVector("_CameraClipInfo", cameraClipInfo);

            Matrix4x4 warpToScreenSpaceMatrix = new Matrix4x4();
            warpToScreenSpaceMatrix.SetRow(0, new Vector4(sx, 0.0f, 0.0f, sx));
            warpToScreenSpaceMatrix.SetRow(1, new Vector4(0.0f, sy, 0.0f, sy));
            warpToScreenSpaceMatrix.SetRow(2, new Vector4(0.0f, 0.0f, 1.0f, 0.0f));
            warpToScreenSpaceMatrix.SetRow(3, new Vector4(0.0f, 0.0f, 0.0f, 1.0f));

            Matrix4x4 projectToPixelMatrix = warpToScreenSpaceMatrix * P;

            material.SetMatrix("_ProjectToPixelMatrix", projectToPixelMatrix);
            material.SetMatrix("_WorldToCameraMatrix", camera_.worldToCameraMatrix);
            material.SetMatrix("_CameraToWorldMatrix", camera_.worldToCameraMatrix.inverse);

            if (m_CommandBuffer == null)
            {
                m_CommandBuffer = new CommandBuffer();
                m_CommandBuffer.name = "Screen Space Reflections";

                // RGB: Normals, A: Roughness.
                // Has the nice benefit of allowing us to control the filtering mode as well.
                m_CommandBuffer.GetTemporaryRT(kNormalAndRoughnessTexture, -1, -1, 0, FilterMode.Point, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Linear);

                m_CommandBuffer.GetTemporaryRT(kHitPointTexture, rtW, rtH, 0, FilterMode.Bilinear, RenderTextureFormat.ARGBHalf, RenderTextureReadWrite.Linear);

                for (int i = 0; i < maxMip; ++i)
                {
                    // We explicitly interpolate during bilateral upsampling.
                    m_CommandBuffer.GetTemporaryRT(kReflectionTextures[i], rtW >> i, rtH >> i, 0, FilterMode.Bilinear, intermediateFormat);
                }

                m_CommandBuffer.GetTemporaryRT(kFilteredReflections, rtW, rtH, 0, bilateralUpsample ? FilterMode.Point : FilterMode.Bilinear, intermediateFormat);
                m_CommandBuffer.GetTemporaryRT(kFinalReflectionTexture, rtW, rtH, 0, FilterMode.Point, intermediateFormat);

                m_CommandBuffer.Blit(BuiltinRenderTextureType.CameraTarget, kNormalAndRoughnessTexture, material, (int)PassIndex.BilateralKeyPack);
                m_CommandBuffer.Blit(BuiltinRenderTextureType.CameraTarget, kHitPointTexture, material, (int)PassIndex.RayTraceStep);
                m_CommandBuffer.Blit(BuiltinRenderTextureType.CameraTarget, kFilteredReflections, material, (int)PassIndex.HitPointToReflections);
                m_CommandBuffer.Blit(kFilteredReflections, kReflectionTextures[0], material, (int)PassIndex.PoissonBlur);

                for (int i = 1; i < maxMip; ++i)
                {
                    int inputTex = kReflectionTextures[i - 1];

                    int lowMip = i;

                    m_CommandBuffer.GetTemporaryRT(kBlurTexture, rtW >> lowMip, rtH >> lowMip, 0, FilterMode.Bilinear, intermediateFormat);
                    m_CommandBuffer.SetGlobalVector("_Axis", new Vector4(1.0f, 0.0f, 0.0f, 0.0f));
                    m_CommandBuffer.SetGlobalFloat("_CurrentMipLevel", i - 1.0f);

                    m_CommandBuffer.Blit(inputTex, kBlurTexture, material, (int)PassIndex.Blur);

                    m_CommandBuffer.SetGlobalVector("_Axis", new Vector4(0.0f, 1.0f, 0.0f, 0.0f));

                    inputTex = kReflectionTextures[i];
                    m_CommandBuffer.Blit(kBlurTexture, inputTex, material, (int)PassIndex.Blur);
                    m_CommandBuffer.ReleaseTemporaryRT(kBlurTexture);
                }

                m_CommandBuffer.Blit(kReflectionTextures[0], kFinalReflectionTexture, material, (int)PassIndex.CompositeSSR);

                m_CommandBuffer.GetTemporaryRT(kTempTexture, camera_.pixelWidth, camera_.pixelHeight, 0, FilterMode.Bilinear, intermediateFormat);

                m_CommandBuffer.Blit(BuiltinRenderTextureType.CameraTarget, kTempTexture, material, (int)PassIndex.CompositeFinal);
                m_CommandBuffer.Blit(kTempTexture, BuiltinRenderTextureType.CameraTarget);


                m_CommandBuffer.ReleaseTemporaryRT(kTempTexture);
                camera_.AddCommandBuffer(CameraEvent.AfterFinalPass, m_CommandBuffer);
            }
        }

    void OnPreRender()
    {
        m_material.SetInt("g_frame", Time.frameCount);
        m_material.SetInt("g_hdr", m_camera.hdr ? 1 : 0);
        m_material.SetInt("g_scene", m_scene);
        m_material.SetInt("g_enable_adaptive", m_enable_adaptive ? 1 : 0);
        m_material.SetInt("g_enable_temporal", m_enable_temporal ? 1 : 0);
        m_material.SetInt("g_enable_glowline", m_enable_glowline ? 1 : 0);

        RenderSettings.fogColor = m_fog_color;

        if (m_quad == null)
        {
            m_quad = RaymarcherUtils.GenerateQuad();
        }
        if (m_detailed_quad == null)
        {
            m_detailed_quad = RaymarcherUtils.GenerateDetailedQuad();
        }

        bool need_to_reflesh_command_buffer = false;

        Vector2 reso = new Vector2(m_camera.pixelWidth, m_camera.pixelHeight);
        if(m_resolution_prev!=reso)
        {
            m_resolution_prev = reso;
            need_to_reflesh_command_buffer = true;
        }

        if (m_enable_adaptive_prev != m_enable_adaptive)
        {
            m_enable_adaptive_prev = m_enable_adaptive;
            need_to_reflesh_command_buffer = true;
        }
        if (m_dbg_show_steps_prev != m_dbg_show_steps)
        {
            m_dbg_show_steps_prev = m_dbg_show_steps;
            need_to_reflesh_command_buffer = true;
        }

        if (need_to_reflesh_command_buffer)
        {
            need_to_reflesh_command_buffer = false;
            ClearCommandBuffer();
        }

        if (m_cb_raymarch==null)
        {
            if (m_enable_adaptive)
            {
                RenderTargetIdentifier[] rt;

                m_cb_prepass = new CommandBuffer();
                m_cb_prepass.name = "Raymarcher Adaptive PrePass";

                int odepth      = Shader.PropertyToID("ODepth");
                int odepth_prev = Shader.PropertyToID("ODepthPrev");
                int ovelocity   = Shader.PropertyToID("OVelocity");
                int qdepth      = Shader.PropertyToID("QDepth");
                int qdepth_prev = Shader.PropertyToID("QDepthPrev");
                int hdepth      = Shader.PropertyToID("HDepth");
                int hdepth_prev = Shader.PropertyToID("HDepthPrev");
                int adepth      = Shader.PropertyToID("ADepth");
                int adepth_prev = Shader.PropertyToID("ADepthPrev");

                m_cb_prepass.GetTemporaryRT(odepth,     m_camera.pixelWidth / 8, m_camera.pixelHeight / 8, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(odepth_prev,m_camera.pixelWidth / 8, m_camera.pixelHeight / 8, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(ovelocity,  m_camera.pixelWidth / 8, m_camera.pixelHeight / 8, 0, FilterMode.Point, RenderTextureFormat.RHalf);
                m_cb_prepass.GetTemporaryRT(qdepth,     m_camera.pixelWidth / 4, m_camera.pixelHeight / 4, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(qdepth_prev,m_camera.pixelWidth / 4, m_camera.pixelHeight / 4, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(hdepth,     m_camera.pixelWidth / 2, m_camera.pixelHeight / 2, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(hdepth_prev,m_camera.pixelWidth / 2, m_camera.pixelHeight / 2, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(adepth,     m_camera.pixelWidth / 1, m_camera.pixelHeight / 1, 0, FilterMode.Point, RenderTextureFormat.RFloat);
                m_cb_prepass.GetTemporaryRT(adepth_prev,m_camera.pixelWidth / 1, m_camera.pixelHeight / 1, 0, FilterMode.Point, RenderTextureFormat.RFloat);

                rt = new RenderTargetIdentifier[2] { odepth, ovelocity };
                m_cb_prepass.SetGlobalTexture("g_depth_prev", odepth_prev);
                m_cb_prepass.SetRenderTarget(rt, odepth);
                m_cb_prepass.DrawMesh(m_quad, Matrix4x4.identity, m_material, 0, 1);

                m_cb_prepass.Blit(odepth, odepth_prev);
                m_cb_prepass.SetGlobalTexture("g_velocity", ovelocity);

                m_cb_prepass.SetRenderTarget(qdepth);
                m_cb_prepass.SetGlobalTexture("g_depth", odepth);
                m_cb_prepass.SetGlobalTexture("g_depth_prev", qdepth_prev);
                m_cb_prepass.DrawMesh(m_quad, Matrix4x4.identity, m_material, 0, 2);

                m_cb_prepass.Blit(qdepth, qdepth_prev);

                m_cb_prepass.SetRenderTarget(hdepth);
                m_cb_prepass.SetGlobalTexture("g_depth", qdepth);
                m_cb_prepass.SetGlobalTexture("g_depth_prev", hdepth_prev);
                m_cb_prepass.DrawMesh(m_quad, Matrix4x4.identity, m_material, 0, 3);

                m_cb_prepass.Blit(hdepth, hdepth_prev);

                m_cb_prepass.SetRenderTarget(adepth);
                m_cb_prepass.SetGlobalTexture("g_depth", hdepth);
                m_cb_prepass.SetGlobalTexture("g_depth_prev", adepth_prev);
//.........这里部分代码省略.........

        /// <summary>
        /// Return a new command buffer.
        /// This will be called the first time
        /// the mesh is rendered for each camera 
        /// that renders the ocean.
        /// </summary>
        public override CommandBuffer Create(Camera cam)
        {
            CommandBuffer cmd = new CommandBuffer();
            cmd.name = "Ceto DepthGrab Cmd: " + cam.name;

            //int width = cam.pixelWidth;
            //int height = cam.pixelHeight;

            //int scale = ResolutionToNumber(Resolution);
            //width /= scale;
            //height /= scale;

            RenderTextureFormat format;

            //screen grab currently disabled.
            /*
            if (cam.hdr)
                format = RenderTextureFormat.ARGBHalf;
            else
                format = RenderTextureFormat.ARGB32;

            //Copy screen into temporary RT.
            int grabID = Shader.PropertyToID("Ceto_GrabCopyTexture");
            cmd.GetTemporaryRT(grabID, width, height, 0, FilterMode.Bilinear, format, RenderTextureReadWrite.Default);
            cmd.Blit(BuiltinRenderTextureType.CurrentActive, grabID);
            cmd.SetGlobalTexture(GrabName, grabID);

            */
            if (SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.RFloat))
                format = RenderTextureFormat.RFloat;
            else
                format = RenderTextureFormat.RHalf;

            //Copy depths into temporary RT.
            int depthID = Shader.PropertyToID("Ceto_DepthCopyTexture");
            cmd.GetTemporaryRT(depthID, cam.pixelWidth, cam.pixelHeight, 0, FilterMode.Point, format, RenderTextureReadWrite.Linear);
            cmd.Blit(BuiltinRenderTextureType.CurrentActive, depthID, m_copyDepthMat, 0);
            cmd.SetGlobalTexture(DepthName, depthID);

            cam.AddCommandBuffer(Event, cmd);

            CommandData data = new CommandData();

            data.command = cmd;
            data.width = cam.pixelWidth;
            data.height = cam.pixelHeight;

            if (m_data.ContainsKey(cam))
                m_data.Remove(cam);

            m_data.Add(cam, data);

            return cmd;
        }