public virtual void Process(int width, int height, GLTextuer2D tex, GLTextuer2D output)
{
IGL.Primary.Enable((int)EnableCap.Dither);
Width = width;
Height = height;
CreateBuffersIfNeeded();
if (renderQuad == null)
{
renderQuad = new FullScreenQuad();
}
//these must be disabled
//otherwise image processing will not work properly
IGL.Primary.Disable((int)EnableCap.DepthTest);
//IGL.Primary.Disable((int)EnableCap.CullFace);
IGL.Primary.Disable((int)EnableCap.Blend);
frameBuff.Bind();
IGL.Primary.Viewport(0, 0, width, height);
IGL.Primary.ClearColor(0, 0, 0, 0);
IGL.Primary.Clear((int)ClearBufferMask.ColorBufferBit);
IGL.Primary.Clear((int)ClearBufferMask.DepthBufferBit);
}
protected void CreateBuffersIfNeeded()
{
if (resizeProcessor == null)
{
resizeProcessor = new PreviewProcessor();
}
if (renderBuff == null)
{
renderBuff = new GLRenderBuffer();
renderBuff.Bind();
renderBuff.SetBufferStorageAsDepth(4096, 4096);
Console.WriteLine("render buff id: " + renderBuff.Id);
GLRenderBuffer.Unbind();
}
if (colorBuff == null)
{
//colorbuff part of the framebuffer is always Rgba32f to support all texture formats
//that could be rendered into it
colorBuff = new GLTextuer2D(PixelInternalFormat.Rgba32f);
colorBuff.Bind();
colorBuff.SetData(new float[0], PixelFormat.Rgba, 4096, 4096);
colorBuff.SetFilter((int)TextureMinFilter.Linear, (int)TextureMagFilter.Linear);
Console.WriteLine("color buff id: " + colorBuff.Id);
GLTextuer2D.Unbind();
}
if (frameBuff == null)
{
frameBuff = new GLFrameBuffer();
Console.WriteLine("frame buff id: " + frameBuff.Id);
frameBuff.Bind();
frameBuff.AttachColor(colorBuff);
frameBuff.AttachDepth(renderBuff);
GL.DrawBuffer(DrawBufferMode.ColorAttachment0);
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
if (!frameBuff.IsValid)
{
var status = GL.CheckFramebufferStatus(FramebufferTarget.Framebuffer);
Console.WriteLine("Framebuffer not complete!!! with status: " + status);
GLFrameBuffer.Unbind();
return;
}
GLFrameBuffer.Unbind();
}
}
protected void CreateBuffersIfNeeded()
{
if (resizeProcessor == null)
{
resizeProcessor = new PreviewProcessor();
}
if (renderBuff == null)
{
renderBuff = new GLRenderBuffer();
renderBuff.Bind();
renderBuff.SetBufferStorageAsDepth(4096, 4096);
GLRenderBuffer.Unbind();
}
if (colorBuff == null)
{
//colorbuff part of the framebuffer is always Rgba32f to support all texture formats
//that could be rendered into it
colorBuff = new GLTextuer2D(PixelInternalFormat.Rgba32f);
colorBuff.Bind();
colorBuff.SetData(IntPtr.Zero, PixelFormat.Rgba, 4096, 4096);
colorBuff.Nearest();
colorBuff.Repeat();
GLTextuer2D.Unbind();
}
if (frameBuff == null)
{
frameBuff = new GLFrameBuffer();
frameBuff.Bind();
frameBuff.AttachColor(colorBuff);
frameBuff.AttachDepth(renderBuff);
IGL.Primary.DrawBuffers(new int[] { (int)DrawBufferMode.ColorAttachment0 });
IGL.Primary.ReadBuffer((int)ReadBufferMode.ColorAttachment0);
if (!frameBuff.IsValid)
{
var status = IGL.Primary.CheckFramebufferStatus((int)FramebufferTarget.Framebuffer);
GLFrameBuffer.Unbind();
return;
}
GLFrameBuffer.Unbind();
}
}
public override void Render(GLTextuer2D[] inputs, out GLTextuer2D[] outputs)
{
outputs = color;
if (Meshes == null)
{
return;
}
frame.Bind();
IGL.Primary.DrawBuffers(new int[] { (int)DrawBuffersEnum.ColorAttachment0, (int)DrawBuffersEnum.ColorAttachment1 });
IGL.Primary.Viewport(0, 0, width, height);
IGL.Primary.ClearColor(0, 0, 0, 0);
IGL.Primary.Clear((int)ClearBufferMask.ColorBufferBit);
IGL.Primary.Clear((int)ClearBufferMask.DepthBufferBit);
for (int i = 0; i < Meshes.Length; ++i)
{
Meshes[i].Draw();
}
GLFrameBuffer.Unbind();
}
protected void Blit(GLTextuer2D output, int width, int height)
{
if (temp == null)
{
temp = new GLFrameBuffer();
}
temp.Bind();
temp.BindRead();
temp.AttachColor(colorBuff, 0);
IGL.Primary.ReadBuffer((int)ReadBufferMode.ColorAttachment0);
temp.AttachColor(output, 1);
IGL.Primary.DrawBuffers(new int[] { (int)DrawBufferMode.ColorAttachment1 });
if (!temp.IsValid)
{
Log.Error("Frame buff is invalid on blit:\r\n" + Environment.StackTrace);
}
IGL.Primary.BlitFramebuffer(0, 0, width, height, 0, 0, width, height, (int)ClearBufferMask.ColorBufferBit, (int)BlitFramebufferFilter.Linear);
GLFrameBuffer.UnbindRead();
GLFrameBuffer.Unbind();
frameBuff.Bind();
}
public BasePass(MeshRenderer[] m, int w, int h)
{
Meshes = m;
color = new GLTextuer2D[2];
width = w;
height = h;
for (int i = 0; i < color.Length; i++)
{
color[i] = new GLTextuer2D(PixelInternalFormat.Rgba16f);
color[i].Bind();
color[i].SetData(IntPtr.Zero, PixelFormat.Rgba, w, h);
color[i].Linear();
color[i].ClampToEdge();
GLTextuer2D.Unbind();
}
depth = new GLRenderBuffer();
depth.Bind();
depth.SetBufferStorageAsDepth(w, h);
GLRenderBuffer.Unbind();
frame = new GLFrameBuffer();
frame.Bind();
frame.AttachColor(color[0], 0);
frame.AttachColor(color[1], 1);
frame.AttachDepth(depth);
if (!frame.IsValid)
{
Log.Error("Invalid frame buffer");
}
GLFrameBuffer.Unbind();
}