/// <summary>
/// Create an image from an existing texture.
/// </summary>
/// <param name="rect">position and size</param>
/// <param name="texture">texture, call<see cref="CreateTexture"/>to create it.</param>
public static void Image(Rect rect, ITexture texture)
{
var window = GetCurrentWindow();
if (window.SkipItems)
{
return;
}
var id = window.GetID(texture.GetHashCode());
var container = window.AbsoluteVisualList;
var node = (Node)container.Find(visual => visual.Id == id);
if (node == null)
{
//create node
node = new Node(id, $"{nameof(Image)}<Native_{texture.GetNativeTextureId()}>");
node.UseBoxModel = true;
node.RuleSet.Replace(GUISkin.Current[GUIControlName.Image]);
container.Add(node);
}
node.ActiveSelf = true;
// rect
node.Rect = window.GetRect(rect);
// draw
using (var dc = node.RenderOpen())
{
dc.DrawBoxModel(texture, node.RuleSet, node.Rect);
}
}
public static void Image(ITexture texture)
{
var window = GetCurrentWindow();
if (window.SkipItems)
{
return;
}
var id = window.GetID(texture.GetHashCode());
var container = window.RenderTree.CurrentContainer;
var node = container.GetNodeById(id);
if (node == null)
{
//create node
node = new Node(id, $"{nameof(Image)}<Native_{texture.GetNativeTextureId()}>");
node.UseBoxModel = true;
node.RuleSet.Replace(GUISkin.Current[GUIControlName.Image]);
node.AttachLayoutEntry(texture.Size);
}
container.AppendChild(node);
node.ActiveSelf = true;
// rect
node.Rect = window.GetRect(id);
// draw
using (var dc = node.RenderOpen())
{
dc.DrawBoxModel(texture, node.RuleSet, node.Rect);
}
}
public void StartDrawMeshToImage(int width, int height)
{
//create texture
textureForDrawMesh = new OpenGLTexture();
textureForDrawMesh.LoadImage(new Rgba32[width * height], width, height);
//create frame buffer
GL.GenFramebuffers(1, frameBuffersForDrawMesh);
frameBufferForDrawMesh = frameBuffersForDrawMesh[0];
GL.BindFramebuffer(GL.GL_FRAMEBUFFER_EXT, frameBufferForDrawMesh);
GL.BindTexture(GL.GL_TEXTURE_2D, framebufferColorTexture);
GL.FramebufferTexture2D(GL.GL_FRAMEBUFFER_EXT, GL.GL_COLOR_ATTACHMENT0_EXT,
GL.GL_TEXTURE_2D, (uint) textureForDrawMesh.GetNativeTextureId(), 0);
if (GL.CheckFramebufferStatus(GL.GL_FRAMEBUFFER_EXT) != GL.GL_FRAMEBUFFER_COMPLETE_EXT)
{
throw new Exception("Framebuffer is not complete.");
}
}
