public static ImageBuffer Generate(IObject3D loadedItem, RenderType renderType, int width, int height, bool allowMultiThreading = true)
{
// Skip generation for invalid items
if ((loadedItem.Children.Count == 0 && loadedItem.Mesh == null) ||
!loadedItem.VisibleMeshes().Any())
{
// check again in case it got loaded
if (!loadedItem.VisibleMeshes().Any())
{
return(null);
}
}
switch (renderType)
{
case RenderType.RAY_TRACE:
{
var tracer = new ThumbnailTracer(loadedItem, width, height)
{
MultiThreaded = allowMultiThreading
};
tracer.TraceScene();
tracer.destImage?.SetRecieveBlender(new BlenderPreMultBGRA());
return(tracer.destImage);
}
case RenderType.PERSPECTIVE:
{
var tracer = new ThumbnailTracer(loadedItem, width, height);
var thumbnail = new ImageBuffer(width, height);
var graphics2D = thumbnail.NewGraphics2D();
foreach (IObject3D item in loadedItem.Children)
{
double minZ = double.MaxValue;
double maxZ = double.MinValue;
tracer.GetMinMaxZ(item.Mesh, ref minZ, ref maxZ);
tracer.RenderPerspective(graphics2D, item.Mesh, Color.White, minZ, maxZ);
}
thumbnail.SetRecieveBlender(new BlenderPreMultBGRA());
return(thumbnail);
}
case RenderType.NONE:
case RenderType.ORTHOGROPHIC:
default:
{
var thumbnail = BuildImageFromMeshGroups(loadedItem, width, height);
// Force to all white and return
return(thumbnail.AllWhite());
}
}
}
private void CreateThumbnail()
{
string stlHashCode = this.ItemWrapper.FileHashCode.ToString();
ImageBuffer bigRender = new ImageBuffer();
if (!File.Exists(this.ItemWrapper.FileLocation))
{
return;
}
List<MeshGroup> loadedMeshGroups = MeshFileIo.Load(this.ItemWrapper.FileLocation);
RenderType renderType = GetRenderType(this.ItemWrapper.FileLocation);
switch (renderType)
{
case RenderType.RAY_TRACE:
{
ThumbnailTracer tracer = new ThumbnailTracer(loadedMeshGroups, BigRenderSize.x, BigRenderSize.y);
tracer.DoTrace();
bigRender = tracer.destImage;
}
break;
case RenderType.PERSPECTIVE:
{
ThumbnailTracer tracer = new ThumbnailTracer(loadedMeshGroups, BigRenderSize.x, BigRenderSize.y);
this.thumbnailImage = new ImageBuffer(this.buildingThumbnailImage);
this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));
bigRender = new ImageBuffer(BigRenderSize.x, BigRenderSize.y);
foreach (MeshGroup meshGroup in loadedMeshGroups)
{
double minZ = double.MaxValue;
double maxZ = double.MinValue;
foreach (Mesh loadedMesh in meshGroup.Meshes)
{
tracer.GetMinMaxZ(loadedMesh, ref minZ, ref maxZ);
}
foreach (Mesh loadedMesh in meshGroup.Meshes)
{
tracer.DrawTo(bigRender.NewGraphics2D(), loadedMesh, RGBA_Bytes.White, minZ, maxZ);
}
}
if (bigRender == null)
{
bigRender = new ImageBuffer(this.noThumbnailImage);
}
}
break;
case RenderType.NONE:
case RenderType.ORTHOGROPHIC:
this.thumbnailImage = new ImageBuffer(this.buildingThumbnailImage);
this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));
bigRender = BuildImageFromMeshGroups(loadedMeshGroups, stlHashCode, BigRenderSize);
if (bigRender == null)
{
bigRender = new ImageBuffer(this.noThumbnailImage);
}
break;
}
// and save it to disk
string imageFileName = GetImageFileName(stlHashCode);
if (partExtension == ".png")
{
ImageIO.SaveImageData(imageFileName, bigRender);
}
else
{
ImageTgaIO.SaveImageData(imageFileName, bigRender);
}
bigRender.SetRecieveBlender(new BlenderPreMultBGRA());
this.thumbnailImage = ImageBuffer.CreateScaledImage(bigRender, (int)Width, (int)Height);
UiThread.RunOnIdle(this.EnsureImageUpdated);
OnDoneRendering();
}
private void CreateThumbnail()
{
string stlHashCode = this.ItemWrapper.FileHashCode.ToString();
ImageBuffer bigRender = new ImageBuffer();
if (!File.Exists(this.ItemWrapper.FileLocation))
{
return;
}
List<MeshGroup> loadedMeshGroups = MeshFileIo.Load(this.ItemWrapper.FileLocation);
RenderType renderType = GetRenderType(this.ItemWrapper.FileLocation);
switch (renderType)
{
case RenderType.RAY_TRACE:
{
ThumbnailTracer tracer = new ThumbnailTracer(loadedMeshGroups, BigRenderSize.x, BigRenderSize.y);
tracer.DoTrace();
bigRender = tracer.destImage;
}
break;
case RenderType.PERSPECTIVE:
{
ThumbnailTracer tracer = new ThumbnailTracer(loadedMeshGroups, BigRenderSize.x, BigRenderSize.y);
this.thumbnailImage = new ImageBuffer(this.buildingThumbnailImage);
this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));
bigRender = new ImageBuffer(BigRenderSize.x, BigRenderSize.y, 32, new BlenderBGRA());
foreach (MeshGroup meshGroup in loadedMeshGroups)
{
double minZ = double.MaxValue;
double maxZ = double.MinValue;
foreach (Mesh loadedMesh in meshGroup.Meshes)
{
tracer.GetMinMaxZ(loadedMesh, ref minZ, ref maxZ);
}
foreach (Mesh loadedMesh in meshGroup.Meshes)
{
tracer.DrawTo(bigRender.NewGraphics2D(), loadedMesh, RGBA_Bytes.White, minZ, maxZ);
}
}
if (bigRender == null)
{
bigRender = new ImageBuffer(this.noThumbnailImage);
}
}
break;
case RenderType.NONE:
case RenderType.ORTHOGROPHIC:
this.thumbnailImage = new ImageBuffer(this.buildingThumbnailImage);
this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));
bigRender = BuildImageFromMeshGroups(loadedMeshGroups, stlHashCode, BigRenderSize);
if (bigRender == null)
{
bigRender = new ImageBuffer(this.noThumbnailImage);
}
break;
}
// and save it to disk
string imageFileName = GetImageFileName(stlHashCode);
if (partExtension == ".png")
{
ImageIO.SaveImageData(imageFileName, bigRender);
}
else
{
ImageTgaIO.SaveImageData(imageFileName, bigRender);
}
ImageBuffer unScaledImage = new ImageBuffer(bigRender.Width, bigRender.Height, 32, new BlenderBGRA());
unScaledImage.NewGraphics2D().Render(bigRender, 0, 0);
// If the source image (the one we downloaded) is more than twice as big as our dest image.
while (unScaledImage.Width > Width * 2)
{
// The image sampler we use is a 2x2 filter so we need to scale by a max of 1/2 if we want to get good results.
// So we scale as many times as we need to to get the Image to be the right size.
// If this were going to be a non-uniform scale we could do the x and y separatly to get better results.
ImageBuffer halfImage = new ImageBuffer(unScaledImage.Width / 2, unScaledImage.Height / 2, 32, new BlenderBGRA());
halfImage.NewGraphics2D().Render(unScaledImage, 0, 0, 0, halfImage.Width / (double)unScaledImage.Width, halfImage.Height / (double)unScaledImage.Height);
unScaledImage = halfImage;
}
this.thumbnailImage = new ImageBuffer((int)Width, (int)Height, 32, new BlenderBGRA());
this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));
this.thumbnailImage.NewGraphics2D().Render(unScaledImage, 0, 0, 0, (double)this.thumbnailImage.Width / unScaledImage.Width, (double)this.thumbnailImage.Height / unScaledImage.Height);
UiThread.RunOnIdle(this.EnsureImageUpdated);
OnDoneRendering();
}
