public void Update()
{
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, framebuffer);
Gl.Viewport(0, 0, screenWidth, screenHeight);
Color32 clrColor = sceneClear;
Gl.ClearColor(clrColor.r / 255.0f, clrColor.g / 255.0f, clrColor.b / 255.0f, 255.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
ObjRenderer.RenderQueue();
Debug.Label("obj render");
drawScreen.Render();
Debug.Label("soft render");
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
Gl.Viewport(0, 0, windowWidth, windowHeight);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Debug.Label("framebuffer swap");
Gl.UseProgram(shader);
Gl.BindBufferToShaderAttribute(vertices, shader, "pos");
Gl.BindBufferToShaderAttribute(uvs, shader, "uv");
Gl.BindBuffer(triangles);
Gl.BindTexture(TextureTarget.Texture2D, texture);
Gl.DrawElements(BeginMode.Triangles, 6, DrawElementsType.UnsignedInt, IntPtr.Zero);
Debug.Label("framebuffer render");
SDL.SDL_GL_SwapWindow(window);
Debug.Label("swap window");
}
private void _renderOneBuffer(bool isTransplate, int frameIdx = -1)
{
ParticleEditModel md = MainModel.ins.particleEditModel;
int w = md.width;
int h = md.height;
int size = w * h * pxChannel;
try {
initOutputBuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, glbufOutput);
if (isTransplate)
{
glClear(0);
}
//glClear(0x00808080);
renderGlToBuffer(frameIdx);
glClear(md.background, 1);
Gl.ReadPixels(0, 0, w, h, OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, mlBufferOutput.Address);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
} catch (Exception ex) {
Debug.WriteLine(ex.ToString());
}
}
/// <summary>
/// Bind this GraphicsSurface for drawing.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> to wich associate its rendering result to this GraphicsSurface.
/// </param>
public override void BindDraw(GraphicsContext ctx)
{
// Bind this framebuffer
Gl.BindFramebuffer(Gl.DRAW_FRAMEBUFFER, ObjectName);
List <int> drawBuffers = new List <int>();
for (uint i = 0; i < Gl.CurrentLimits.MaxColorAttachments; i++)
{
// Reset dirty binding points
if ((_ColorBuffers[i] != null) && _ColorBuffers[i].Dirty)
{
// Ensure created buffer
_ColorBuffers[i].Create(ctx);
// Ensure attached buffer
_ColorBuffers[i].Attach(Gl.DRAW_FRAMEBUFFER, Gl.COLOR_ATTACHMENT0 + (int)i);
_ColorBuffers[i].Dirty = false;
}
// Collect draw buffers
if (_ColorBuffers[i] != null)
{
drawBuffers.Add(Gl.COLOR_ATTACHMENT0 + (int)i);
}
}
// Validate completeness status
Validate(ctx);
// Update draw buffers
Gl.DrawBuffers(drawBuffers.ToArray());
}
/// <summary>
/// Set ShaderProgram state.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> which has defined the shader program <paramref name="sProgram"/>.
/// </param>
/// <param name="sProgram">
/// The <see cref="ShaderProgram"/> which has the state set.
/// </param>
public override void ApplyState(GraphicsContext ctx, ShaderProgram sProgram)
{
if (ctx == null)
{
throw new ArgumentNullException("ctx");
}
// Framebuffer object must be existing to apply state
if (mDrawFramebuffer != null && !mDrawFramebuffer.Exists(ctx))
{
throw new InvalidOperationException("RenderFramebuffer not existing");
}
// Setup binding
if (mDrawFramebuffer == null)
{
// The draw binding is stored in 'mDrawBinding': 0 indicates the default framebuffer
Gl.BindFramebuffer(Gl.DRAW_FRAMEBUFFER, mDrawBinding);
}
else
{
// Bind a framebuffer object instead of any framebuffer (including the default one)
// Here a default draw buffers configuration is setup
mDrawFramebuffer.BindDraw(ctx);
}
// Setup draw buffers
if (mDrawBuffers != null)
{
Gl.DrawBuffers(mDrawBuffers);
}
}
/// <inheritdoc />
public override void CopyRenderTarget(RenderTarget source, RenderTarget dest, Rectangle?sourceRect = null, Rectangle?destRect = null, bool smooth = false)
{
GLThread.ExecuteGLThread(() =>
{
RenderTarget srcTarget = source ?? Engine.Renderer.BaseTarget;
RenderTarget destTarget = dest ?? Engine.Renderer.BaseTarget;
Vector2 sourceSize = srcTarget.Size;
Vector2 destSize = destTarget.Size;
Rectangle srcRect = sourceRect ?? new Rectangle(0, 0, sourceSize);
Rectangle dstRect = destRect ?? new Rectangle(0, 0, destSize);
uint srcPointer = (uint)((GlRenderTarget)srcTarget)?.Pointer;
uint destPointer = (uint)((GlRenderTarget)destTarget)?.Pointer;
Gl.BindFramebuffer(FramebufferTarget.ReadFramebuffer, srcPointer);
Gl.BindFramebuffer(FramebufferTarget.DrawFramebuffer, destPointer);
Gl.BlitFramebuffer((int)srcRect.X, (int)srcRect.Y, (int)srcRect.Width, (int)srcRect.Height, (int)dstRect.X, (int)dstRect.Y, (int)dstRect.Width, (int)dstRect.Height,
ClearBufferMask.ColorBufferBit, smooth ? BlitFramebufferFilter.Linear : BlitFramebufferFilter.Nearest);
// Restore bindings and so on.
Engine.Renderer.EnsureRenderTarget();
});
}
public Framebuffer()
{
Fbo = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, Fbo);
ColorTexture = Gl.GenTexture();
Gl.BindTexture(TextureTarget.Texture2d, ColorTexture);
Gl.TexImage2D(TextureTarget.Texture2d, 0, InternalFormat.Srgb, Constants.renderWidth, Constants.renderHeight, 0, PixelFormat.Rgb, PixelType.Float, IntPtr.Zero);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2d, ColorTexture, 0);
DepthTexture = Gl.GenTexture();
Gl.BindTexture(TextureTarget.Texture2d, DepthTexture);
Gl.TexImage2D(TextureTarget.Texture2d, 0, InternalFormat.DepthComponent, Constants.renderWidth, Constants.renderHeight, 0, PixelFormat.DepthComponent, PixelType.Float, IntPtr.Zero);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthAttachment, TextureTarget.Texture2d, DepthTexture, 0);
Gl.BindTexture(TextureTarget.Texture2d, 0);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
}
public static uint CreateBrdfLut()
{
var shader = new Shader("Content/Shaders/BrdfLut/brdfLut.frag", "Content/Shaders/BrdfLut/brdfLut.vert");
var brdfLutTexture = Gl.GenTexture();
var plane = new Plane();
Gl.BindTexture(TextureTarget.Texture2d, brdfLutTexture);
Gl.TexImage2D(TextureTarget.Texture2d, 0, InternalFormat.Rg16f, 512, 512, 0, PixelFormat.Rg, PixelType.Float, IntPtr.Zero);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
var captureFbo = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, captureFbo);
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2d, brdfLutTexture, 0);
Gl.Viewport(0, 0, 512, 512);
shader.Use();
// Gl.ClearColor(1.0f, 1.0f, 1.0f, 1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Gl.Disable(EnableCap.DepthTest);
Gl.Disable(EnableCap.CullFace);
plane.DrawRaw();
Gl.Enable(EnableCap.DepthTest);
Gl.Enable(EnableCap.CullFace);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
return(brdfLutTexture);
}
public void BindFrameBuffer()
{
//Gl.BindTexture(TextureTarget.Texture2d, 0); //To make sure the texture isn't bound
Gl.Viewport(0, 0, SHADOW_WIDTH, SHADOW_HEIGHT);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, this.frameBuffer);
Gl.Clear(ClearBufferMask.DepthBufferBit);
}
public static uint RenderToCubemap(Shader shader, int resolution, Action preRender)
{
var cube = new Cube();
var captureFbo = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, captureFbo);
var colorTexture = Gl.GenTexture();
Gl.BindTexture(TextureTarget.Texture2d, colorTexture);
Gl.TexImage2D(TextureTarget.Texture2d, 0, InternalFormat.Srgb, Constants.renderWidth, Constants.renderHeight, 0, PixelFormat.Rgb, PixelType.Float, IntPtr.Zero);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.NearestMipmapNearest);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Nearest);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2d, colorTexture, 0);
var envCubemap = Gl.GenTexture();
Gl.BindTexture(TextureTarget.TextureCubeMap, envCubemap);
for (int i = 0; i < 6; ++i)
{
Gl.TexImage2D(TextureTarget.TextureCubeMapPositiveX + i, 0, InternalFormat.Srgb, resolution, resolution, 0, PixelFormat.Rgb, PixelType.Float, IntPtr.Zero);
}
Gl.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
Gl.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
Gl.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
Gl.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
Gl.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureWrapR, (int)TextureWrapMode.ClampToEdge);
var projMatrix = Matrix4x4f.Perspective(90f, 1.0f, 0.1f, 10.0f);
var viewMatrices = new Matrix4x4f[]
{
Matrix4x4f.LookAt(new Vertex3f(0f, 0f, 0f), new Vertex3f(1f, 0f, 0f), new Vertex3f(0f, -1f, 0f)),
Matrix4x4f.LookAt(new Vertex3f(0f, 0f, 0f), new Vertex3f(-1f, 0f, 0f), new Vertex3f(0f, -1f, 0f)),
Matrix4x4f.LookAt(new Vertex3f(0f, 0f, 0f), new Vertex3f(0f, 1f, 0f), new Vertex3f(0f, 0f, 1f)),
Matrix4x4f.LookAt(new Vertex3f(0f, 0f, 0f), new Vertex3f(0f, -1f, 0f), new Vertex3f(0f, 0f, -1f)),
Matrix4x4f.LookAt(new Vertex3f(0f, 0f, 0f), new Vertex3f(0f, 0f, 1f), new Vertex3f(0f, -1f, 0f)),
Matrix4x4f.LookAt(new Vertex3f(0f, 0f, 0f), new Vertex3f(0f, 0f, -1f), new Vertex3f(0f, -1f, 0f)),
};
shader.Use();
preRender.Invoke();
shader.SetMatrix("projectionMatrix", projMatrix);
Gl.Viewport(0, 0, resolution, resolution);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, captureFbo);
for (int i = 0; i < 6; ++i)
{
shader.SetMatrix("viewMatrix", viewMatrices[i]);
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.TextureCubeMapPositiveX + i, envCubemap, 0);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
cube.Draw();
}
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
return(envCubemap);
}
/// <inheritdoc />
public override RenderTarget CreateRenderTarget(Vector2 size, bool smooth = false, TextureInternalFormat internalFormat = TextureInternalFormat.Rgba,
TexturePixelFormat pixelFormat = TexturePixelFormat.Rgba, bool attachStencil = false)
{
RenderTarget resultTarget = null;
InternalFormat intFormat = (InternalFormat)Enum.Parse(typeof(InternalFormat), internalFormat.ToString());
PixelFormat glFormat = (PixelFormat)Enum.Parse(typeof(PixelFormat), pixelFormat.ToString());
GLThread.ExecuteGLThread(() =>
{
// Create the FBO which rendering will be done to.
uint newFbo = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, newFbo);
// Create the texture.
uint renderTexture = Gl.GenTexture();
Gl.BindTexture(TextureTarget.Texture2d, renderTexture);
Gl.TexImage2D(TextureTarget.Texture2d, 0, intFormat, (int)size.X, (int)size.Y, 0, glFormat,
PixelType.UnsignedByte, IntPtr.Zero);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMinFilter, smooth ? Gl.LINEAR : Gl.NEAREST);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMagFilter, smooth ? Gl.LINEAR : Gl.NEAREST);
// Attach the texture to the frame buffer.
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2d, renderTexture, 0);
// Attach color components.
int[] modes = { Gl.COLOR_ATTACHMENT0 };
Gl.DrawBuffers(modes);
// Create render buffer.
uint depthBuffer = Gl.GenRenderbuffer();
Gl.BindRenderbuffer(RenderbufferTarget.Renderbuffer, depthBuffer);
Gl.RenderbufferStorage(RenderbufferTarget.Renderbuffer, InternalFormat.Depth24Stencil8, (int)size.X,
(int)size.Y);
Gl.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, attachStencil ? FramebufferAttachment.DepthStencilAttachment : FramebufferAttachment.DepthAttachment, RenderbufferTarget.Renderbuffer, depthBuffer);
// Check status.
FramebufferStatus status = Gl.CheckFramebufferStatus(FramebufferTarget.Framebuffer);
if (status != FramebufferStatus.FramebufferComplete)
{
Engine.Log.Warning($"Framebuffer creation failed. Error code {status}.", MessageSource.GL);
}
// Create the texture object.
Texture targetTexture = new GLTexture(renderTexture, new Vector2(size.X, size.Y), null, $"FBO {newFbo} Texture");
// Create the render target object.
resultTarget = new GlRenderTarget(newFbo, size, targetTexture);
// Clear the target.
ClearScreen();
CheckError("creating scale fbo");
// Restore bindings and so on.
Engine.Renderer?.EnsureRenderTarget();
});
return(resultTarget);
}
/// <summary>
/// フレームバッファのサイズを変更する。
/// </summary>
/// <param name="width">幅</param>
/// <param name="height">高さ</param>
public void Resize(int width, int height)
{
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, FrameBufferId);
Gl.FramebufferTexture(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, 0, 0);
Texture.Dispose();
Texture = new CubismOpenGlNetTexture(width, height);
Gl.FramebufferTexture(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureId, 0);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
}
private void initOutputBuffer()
{
ParticleEditModel md = MainModel.ins.particleEditModel;
//if(md == null || md.width == 0 || md.height == 0) {
// return;
//}
if (bufWidth == md.width && bufHeight == md.height)
{
return;
}
int w = md.width;
int h = md.height;
bufWidth = w;
bufHeight = h;
bufferMVP = calcMVP(w, h);
//Gl.Enable(EnableCap.FramebufferSrgb);
if (mlBufferCache != null)
{
mlBufferCache.Dispose();
}
if (mlBufferOutput != null)
{
mlBufferOutput.Dispose();
}
int size = w * h * pxChannel;
bufferCache = new byte[size];
mlBufferCache = new MemoryLock(bufferCache);
bufferOutput = new byte[size];
mlBufferOutput = new MemoryLock(bufferOutput);
//Gl.BufferData(BufferTarget.PixelPackBuffer, (uint)size, mlImageData.Address, BufferUsage.DynamicRead);
Gl.BindTexture(TextureTarget.Texture2d, glbufTexCache);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToBorder);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToBorder);
//Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureWrapR, (int)TextureWrapMode.Repeat);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMagFilter, (int)TextureMinFilter.Linear);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
//Gl.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (int)LightEnvModeSGIX.Replace);
Gl.TexImage2D(TextureTarget.Texture2d, 0, InternalFormat.Rgba, w, h, 0, OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, mlBufferCache.Address);
Gl.BindTexture(TextureTarget.Texture2d, 0);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, glbufOutput);
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2d, glbufTexCache, 0);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
}
private uint CreateFrameBuffer()
{
uint frameBuffer = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, frameBuffer);
Gl.DrawBuffer(DrawBufferMode.None);
Gl.ReadBuffer(0);
return(frameBuffer);
}
private uint CreateFrameBuffer()
{
uint frameBuffer = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, frameBuffer);
Gl.DrawBuffer(DrawBufferMode.Aux0); //Gl.GL_COLOR_ATTACHMENT0
//indicate that we will always render to color attachment 0
return(frameBuffer);
}
/// <summary>
/// Unbind this GraphicsSurface for drawing.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> to wich disassociate its rendering result from this GraphicsSurface.
/// </param>
public override void UnbindDraw(GraphicsContext ctx)
{
// Switch to default framebuffer
Gl.BindFramebuffer(FramebufferTarget.DrawFramebuffer, InvalidObjectName);
#if !MONODROID
Gl.DrawBuffers(Gl.BACK_LEFT);
#endif
// Gl.DrawBuffer(DrawBufferMode.BackLeft);
}
private void RenderFramebufferToScreen()
{
Gl.Viewport(0, 0, Constants.windowWidth, Constants.windowHeight);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
Gl.ClearDepth(1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
framebufferRenderShader.SetFloat("exposure", Constants.exposure);
framebufferRenderPlane.Draw(framebufferRenderShader, mainFramebuffer.ColorTexture);
}
/// <summary>
/// Actually create this GraphicsResource resources.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for allocating resources.
/// </param>
protected override void CreateObject(GraphicsContext ctx)
{
int currentBinding;
Gl.Get(Gl.READ_FRAMEBUFFER_BINDING, out currentBinding);
Gl.BindFramebuffer(FramebufferTarget.ReadFramebuffer, ObjectName);
// Restore previous Framebuffer bound
Gl.BindFramebuffer(FramebufferTarget.ReadFramebuffer, (uint)currentBinding);
}
private static void RenderOsdFramebuffer(DeviceContext deviceContext)
{
IntPtr glContext = IntPtr.Zero;
uint framebuffer = 0;
uint renderbuffer = 0;
try {
// Create context and make current on this thread
if ((glContext = deviceContext.CreateContext(IntPtr.Zero)) == IntPtr.Zero)
{
throw new System.ComponentModel.Win32Exception(System.Runtime.InteropServices.Marshal.GetLastWin32Error()); // XXX
}
deviceContext.MakeCurrent(glContext);
// Create framebuffer resources
int w = Math.Min(800, Gl.CurrentLimits.MaxRenderbufferSize);
int h = Math.Min(600, Gl.CurrentLimits.MaxRenderbufferSize);
renderbuffer = Gl.GenRenderbuffer();
Gl.BindRenderbuffer(RenderbufferTarget.Renderbuffer, renderbuffer);
Gl.RenderbufferStorage(RenderbufferTarget.Renderbuffer, InternalFormat.Rgb8, w, h);
framebuffer = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.ReadFramebuffer, framebuffer);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, framebuffer);
Gl.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, RenderbufferTarget.Renderbuffer, renderbuffer);
FramebufferStatus framebufferStatus = Gl.CheckFramebufferStatus(FramebufferTarget.Framebuffer);
if (framebufferStatus != FramebufferStatus.FramebufferComplete)
{
throw new InvalidOperationException("framebuffer not complete");
}
Gl.DrawBuffers(Gl.COLOR_ATTACHMENT0);
RenderOsd(w, h);
Gl.ReadBuffer(ReadBufferMode.ColorAttachment0);
SnapshotOsd(w, h);
} finally {
if (renderbuffer != 0)
{
Gl.DeleteRenderbuffers(renderbuffer);
}
if (framebuffer != 0)
{
Gl.DeleteFramebuffers(framebuffer);
}
if (glContext != IntPtr.Zero)
{
deviceContext.DeleteContext(glContext);
}
}
}
/// <inheritdoc />
public override RenderTarget CreateMSAARenderTarget(int samples, Vector2 size, TextureInternalFormat internalFormat = TextureInternalFormat.Rgba, bool attachStencil = false)
{
RenderTarget resultTarget = null;
InternalFormat intFormat = (InternalFormat)Enum.Parse(typeof(InternalFormat), internalFormat.ToString());
GLThread.ExecuteGLThread(() =>
{
// Create the FBO.
uint newFbo = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, newFbo);
// Create the texture.
uint renderTexture = Gl.GenTexture();
Gl.BindTexture(TextureTarget.Texture2dMultisample, renderTexture);
Gl.TexImage2DMultisample(TextureTarget.Texture2dMultisample, samples, intFormat, (int)size.X, (int)size.Y, true);
// Attach the texture to the frame buffer.
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2dMultisample, renderTexture, 0);
// Attach color components.
int[] modes = { Gl.COLOR_ATTACHMENT0 };
Gl.DrawBuffers(modes);
// Create render buffer.
uint depthBuffer = Gl.GenRenderbuffer();
Gl.BindRenderbuffer(RenderbufferTarget.Renderbuffer, depthBuffer);
Gl.RenderbufferStorageMultisample(RenderbufferTarget.Renderbuffer, samples, InternalFormat.Depth24Stencil8, (int)size.X, (int)size.Y);
Gl.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, attachStencil ? FramebufferAttachment.DepthStencilAttachment : FramebufferAttachment.DepthAttachment, RenderbufferTarget.Renderbuffer, depthBuffer);
// Check status.
FramebufferStatus status = Gl.CheckFramebufferStatus(FramebufferTarget.Framebuffer);
if (status != FramebufferStatus.FramebufferComplete)
{
Engine.Log.Warning($"MSAA Framebuffer creation failed. Error code {status}.", MessageSource.GL);
}
// Construct a texture object for it.
Texture targetTexture = new GLTexture(renderTexture, new Vector2(size.X, size.Y), null, $"MSAA{samples} FBO Texture");
// Create the render target object.
resultTarget = new GlRenderTarget(newFbo, size, targetTexture);
// Clear the target.
ClearScreen();
CheckError("creating msaa fbo");
// Restore bindings and so on.
Engine.Renderer?.EnsureRenderTarget();
});
return(resultTarget);
}
/// <summary>
/// クリッピングマスクの描画のためのフレームバッファを作成する。
/// </summary>
/// <param name="width">幅</param>
/// <param name="height">高さ</param>
public CubismOpenGlNetClippingMask(int width, int height)
{
// テクスチャを生成する
Texture = new CubismOpenGlNetTexture(width, height);
// フレームバッファを生成し、テクスチャを割り当てる
uint[] fbos = new uint[1];
Gl.GenFramebuffers(fbos);
FrameBufferId = fbos[0];
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, FrameBufferId);
Gl.FramebufferTexture(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureId, 0);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
}
public void RenderFramebuffer()
{
var cameraComponent = MainCamera.GetComponent <CameraComponent>();
Gl.Viewport(0, 0, GameSettings.GameResolutionX, GameSettings.GameResolutionY);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
Gl.ClearDepth(1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
framebufferRenderShader.SetFloat("exposure", RenderManager.Instance.exposure);
framebufferRenderShader.SetInt("tonemapOperator", (int)RenderManager.Instance.tonemapOperator);
framebufferRenderPlane.Draw(framebufferRenderShader, cameraComponent.Framebuffer.ColorTexture);
}
void BindFramebuffer(FramebufferTarget Target)
{
#if DEBUG
FramebufferStatus S = Gl.CheckNamedFramebufferStatus(ID, Target);
if (S != FramebufferStatus.FramebufferComplete)
{
throw new InvalidOperationException("Incomplete framebuffer");
}
#endif
this.Target = Target;
Gl.BindFramebuffer(Target, ID);
}
public void RenderShadows()
{
Gl.Disable(EnableCap.CullFace);
Gl.Viewport(0, 0, (int)light.ShadowMap.Resolution.x, (int)light.ShadowMap.Resolution.y);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, light.ShadowMap.DepthMapFbo);
Gl.Clear(ClearBufferMask.DepthBufferBit);
light.Render();
testModel.DrawShadows(light, depthShader);
Gl.Enable(EnableCap.CullFace);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
}
public override void BeginScene(Camera camera)
{
currentCamera = camera;
MakeCurrent();
var renderTexture = camera.targetTexture;
if (renderTexture is null)
{
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
}
else
{
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, frameBufferCache.TryRegister(new FrameBuffer(renderTexture)).fbo);
}
}
private void RenderSceneToFramebuffer()
{
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, mainFramebuffer.Fbo);
Gl.Viewport(0, 0, Constants.renderWidth, Constants.renderHeight);
Gl.ClearDepth(0.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Gl.ClipControl(ClipControlOrigin.LowerLeft, ClipControlDepth.ZeroToOne);
Gl.DepthFunc(DepthFunction.Greater);
camera.Render();
DrawSkybox();
testModel.Draw(camera, shader, light, (skybox, convolutedSkybox, prefilteredSkybox), brdfLut);
Gl.DepthFunc(DepthFunction.Less);
Gl.ClipControl(ClipControlOrigin.LowerLeft, ClipControlDepth.NegativeOneToOne);
}
protected override FrameBufferData OnRegister(FrameBuffer key)
{
uint fbo = Gl.CreateFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, fbo);
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2d, (device as OpenGLDevice).textureCache.TryRegister(key.renderTexture), 0);
uint depthTexture = Gl.GenTexture();
Gl.BindTexture(TextureTarget.Texture2d, depthTexture);
Gl.TexImage2D(TextureTarget.Texture2d, 0, InternalFormat.DepthComponent32, (int)key.renderTexture.width, (int)key.renderTexture.height, 0, PixelFormat.DepthComponent, PixelType.Float, IntPtr.Zero);
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthAttachment, TextureTarget.Texture2d, depthTexture, 0);
return(new FrameBufferData()
{
fbo = fbo, depthTexture = depthTexture
});
}
private void ApplyRenderTarget()
{
uint target = _state.RenderTargetBase;
if (target != _actualRenderTarget)
{
if (target != 0)
{
// TODO set this uint antiAlias = _state.RenderTargetAntiAlias;
if (!_framebufferCache.TryGetValue(target, out var framebuffer))
{
uint[] fb = new uint[1];
Gl.GenFramebuffers(fb);
framebuffer = fb[0];
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, framebuffer);
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2d, target, 0);
if (Gl.CheckFramebufferStatus(FramebufferTarget.Framebuffer) != FramebufferStatus.FramebufferComplete)
{
Debug.WriteLine("Failed to create framebuffer for render texture");
}
_framebufferCache.Add(target, framebuffer);
}
else
{
if (framebuffer == 0)
{
throw new InvalidOperationException("Attempted to bind framebuffer ID 0");
}
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, framebuffer);
}
Gl.Viewport(0, 0, (int)_state.RenderTarget.NativeWidth, (int)_state.RenderTarget.NativeHeight);
}
else
{
// TODO: double check these on a device, the ifdef seems to be unneeded
#if __IOS__
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 1);
#else
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
#endif
Gl.Viewport(0, 0, (int)_backBufferWidth, (int)_backBufferHeight);
}
_actualRenderTarget = target;
}
}
private static void RenderOsdFramebuffer(DeviceContext deviceContext)
{
IntPtr glContext = IntPtr.Zero;
uint framebuffer = 0;
uint renderbuffer = 0;
try {
// Create context and make current on this thread
if ((glContext = deviceContext.CreateContext(IntPtr.Zero)) == IntPtr.Zero)
throw new System.ComponentModel.Win32Exception(System.Runtime.InteropServices.Marshal.GetLastWin32Error()); // XXX
deviceContext.MakeCurrent(glContext);
// Create framebuffer resources
int w = Math.Min(800, Gl.CurrentLimits.MaxRenderBufferSize);
int h = Math.Min(600, Gl.CurrentLimits.MaxRenderBufferSize);
renderbuffer = Gl.GenRenderbuffer();
Gl.BindRenderbuffer(Gl.RENDERBUFFER, renderbuffer);
Gl.RenderbufferStorage(Gl.RENDERBUFFER, Gl.RGB8, w, h);
framebuffer = Gl.GenFramebuffer();
Gl.BindFramebuffer(Gl.READ_FRAMEBUFFER, framebuffer);
Gl.BindFramebuffer(Gl.FRAMEBUFFER, framebuffer);
Gl.FramebufferRenderbuffer(Gl.FRAMEBUFFER, Gl.COLOR_ATTACHMENT0, Gl.RENDERBUFFER, renderbuffer);
int framebufferStatus = Gl.CheckFramebufferStatus(Gl.FRAMEBUFFER);
if (framebufferStatus != Gl.FRAMEBUFFER_COMPLETE)
throw new InvalidOperationException("framebuffer not complete");
Gl.DrawBuffers(Gl.COLOR_ATTACHMENT0);
RenderOsd(w, h);
Gl.ReadBuffer(ReadBufferMode.ColorAttachment0);
SnapshotOsd(w, h);
} finally {
if (renderbuffer != 0)
Gl.DeleteRenderbuffers(renderbuffer);
if (framebuffer != 0)
Gl.DeleteFramebuffers(framebuffer);
if (glContext != IntPtr.Zero)
deviceContext.DeleteContext(glContext);
}
}
/// <inheritdoc />
public override void BindRenderTarget(RenderTarget t)
{
GLThread.ExecuteGLThread(() =>
{
// Check if restoring the window target.
if (t == null)
{
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
Gl.Viewport((int)Viewport.X, (int)Viewport.Y, (int)Viewport.Width, (int)Viewport.Height);
return;
}
GlRenderTarget target = (GlRenderTarget)t;
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, target.Pointer);
Gl.Viewport((int)target.Viewport.X, (int)target.Viewport.Y, (int)target.Viewport.Width, (int)target.Viewport.Height);
});
}
private void RenderSceneToFramebuffer()
{
var cameraComponent = MainCamera.GetComponent <CameraComponent>();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, cameraComponent.Framebuffer.Fbo);
Gl.Viewport(0, 0, (int)cameraComponent.Resolution.X, (int)cameraComponent.Resolution.Y);
Gl.ClearDepth(0.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Gl.ClipControl(ClipControlOrigin.LowerLeft, ClipControlDepth.ZeroToOne);
Gl.DepthFunc(DepthFunction.Greater);
MainCamera.Render();
var skyboxComponent = skyboxEntity.GetComponent <SkyboxComponent>();
skyboxComponent.DrawSkybox(MainCamera);
var templateDrawInfo = new Mesh.DrawInfo()
{
Camera = MainCamera,
Light = Lights[0],
PbrCubemaps = (skyboxComponent.skybox, skyboxComponent.convolutedSkybox, skyboxComponent.prefilteredSkybox),
BrdfLut = brdfLut,
HoloTexture = holoTexture,
ProjMatrix = MainCamera.GetComponent <CameraComponent>().ProjMatrix,
ViewMatrix = MainCamera.GetComponent <CameraComponent>().ViewMatrix
};
foreach (var entity in Entities)
{
if (!entity.HasComponent <ModelComponent>())
{
continue;
}
var modelComponent = entity.GetComponent <ModelComponent>();
var newDrawInfo = new Mesh.DrawInfo(templateDrawInfo);
newDrawInfo.Shader = entity.GetComponent <ShaderComponent>();
newDrawInfo.ModelMatrix = entity.GetComponent <TransformComponent>().Matrix;
modelComponent.Draw(newDrawInfo);
}
Gl.DepthFunc(DepthFunction.Less);
Gl.ClipControl(ClipControlOrigin.LowerLeft, ClipControlDepth.NegativeOneToOne);
}
