// converts a lat long texture to a cubemap
public TextureArray2D ConvertToCube(TextureArray2D latlong, int resolution)
{
Debug.Assert(latlong.NumLayers == 1);
var dst = new TextureArray2D(new LayerMipmapCount(6, 1), new Size3(resolution, resolution), Format.R32G32B32A32_Float, false);
var dev = Device.Get();
quad.Bind(false);
dev.Pixel.Set(toCube.Pixel);
dev.Pixel.SetShaderResource(0, latlong.GetSrView(LayerMipmapSlice.Mip0));
dev.Pixel.SetSampler(0, sampler);
dev.OutputMerger.SetRenderTargets(null,
dst.GetRtView(new LayerMipmapSlice(0, 0)),
dst.GetRtView(new LayerMipmapSlice(1, 0)),
dst.GetRtView(new LayerMipmapSlice(2, 0)),
dst.GetRtView(new LayerMipmapSlice(3, 0)),
dst.GetRtView(new LayerMipmapSlice(4, 0)),
dst.GetRtView(new LayerMipmapSlice(5, 0)));
dev.SetViewScissors(resolution, resolution);
dev.DrawQuad();
dev.Pixel.SetShaderResource(0, null);
dev.Pixel.SetSampler(0, null);
dev.OutputMerger.SetRenderTargets((RenderTargetView)null);
quad.Unbind();
return(dst);
}
private void Apply(TextureArray2D src, TextureArray2D dst, int dirX, int dirY)
{
quad.Bind(false);
var dev = Device.Get();
dev.Pixel.Set(shader.Pixel);
cbuffer.SetData(new DirSizeData
{
DirX = dirX,
DirY = dirY,
SizeX = src.Size.Width,
SizeY = src.Size.Height
});
dev.Pixel.SetConstantBuffer(0, cbuffer.Handle);
dev.SetViewScissors(dst.Size.Width, dst.Size.Height);
foreach (var lm in src.LayerMipmap.LayersOfMipmap(0))
{
dev.Pixel.SetShaderResource(0, src.GetSrView(lm));
dev.OutputMerger.SetRenderTargets(dst.GetRtView(lm));
dev.DrawQuad();
}
dev.Pixel.SetShaderResource(0, null);
dev.OutputMerger.SetRenderTargets((RenderTargetView)null);
quad.Unbind();
}
private async Task CreateGifAsync(TextureArray2D left, TextureArray2D right, Config cfg, IProgress progress)
{
// delay in milliseconds
var numFrames = cfg.FramesPerSecond * cfg.NumSeconds;
try
{
progressModel.EnableDllProgress = false;
var leftView = left.GetSrView(LayerMipmapSlice.Mip0);
var rightView = right.GetSrView(LayerMipmapSlice.Mip0);
var curProg = progress.CreateSubProgress(0.9f);
// create frames
using (var dst = IO.CreateImage(new ImageFormat(Format.R8G8B8A8_UNorm_SRgb), left.Size, LayerMipmapCount.One))
{
var dstMip = dst.GetMipmap(LayerMipmapSlice.Mip0);
var dstPtr = dstMip.Bytes;
var dstSize = dstMip.ByteSize;
// render frames into texture
using (var frame = new TextureArray2D(LayerMipmapCount.One, left.Size,
Format.R8G8B8A8_UNorm_SRgb, false))
{
var frameView = frame.GetRtView(LayerMipmapSlice.Mip0);
for (int i = 0; i < numFrames; ++i)
{
float t = (float)i / (numFrames);
int borderPos = (int)(t * frame.Size.Width);
// render frame
shader.Run(leftView, rightView, frameView, cfg.SliderWidth, borderPos,
frame.Size.Width, frame.Size.Height);
// save frame as png
frame.CopyPixels(LayerMipmapSlice.Mip0, dstPtr, dstSize);
var filename = $"{cfg.TmpFilename}{i:D4}";
await Task.Run(() => IO.SaveImage(dst, filename, "png", GliFormat.RGBA8_SRGB), progress.Token);
curProg.Progress = i / (float)numFrames;
curProg.What = "creating frames";
}
}
}
// convert video
await FFMpeg.ConvertAsync(cfg, progress.CreateSubProgress(1.0f));
}
finally
{
progressModel.EnableDllProgress = true;
}
}