private string GetCornerTexUniformName(TerrainDetailCorner corner)
{
if (corner == TerrainDetailCorner.BottomLeft)
{
return("BottomLeft");
}
else
if (corner == TerrainDetailCorner.BottomRight)
{
return("BottomRight");
}
else if (corner == TerrainDetailCorner.TopLeft)
{
return("TopLeft");
}
else if (corner == TerrainDetailCorner.TopRight)
{
return("TopRight");
}
else
{
Preconditions.Fail("Unsupported corner " + corner);
return(null);
}
}
private async Task MergeDetailObject(Dictionary <TerrainDetailCorner, TerrainDetailElement> sourceTextures,
TextureWithSize sourceTexture, TextureWithSize outTexture, TerrainDetailCorner activeCorner, TextureWithSize scratchTexture)
{
var uniforms = new UniformsPack();
var cornersPresent = new Vector4();
var cornersMerged = new Vector4();
int activeCornerIndex = 0;
var i = 0;
foreach (var corner in TerrainDetailCorner.OrderedDirections)
{
if (corner == activeCorner)
{
activeCornerIndex = i;
}
if (sourceTextures.ContainsKey(corner))
{
cornersPresent[i] = 10;
if (sourceTextures[corner].CornersMergeStatus == CornersMergeStatus.MERGED)
{
cornersMerged[i] = 10;
}
uniforms.SetTexture("_Corner" + GetCornerTexUniformName(corner) + "Tex", sourceTextures[corner].Texture.Texture);
}
i++;
}
uniforms.SetUniform("_ActiveCornerIndex", activeCornerIndex);
uniforms.SetUniform("_CornersMerged", cornersMerged);
uniforms.SetTexture("_ScratchTex", scratchTexture.Texture);
uniforms.SetUniform("_MergeMargin", _configuration.MergeMarginSize); // todo
await _renderer.AddOrder(new TextureRenderingTemplate()
{
CanMultistep = false,
CreateTexture2D = false,
RenderTextureToModify = scratchTexture.Texture as RenderTexture, // todo
ShaderName = "Custom/TerrainDetailMerger/MergeIntoScratch",
UniformPack = uniforms,
RenderingRectangle = new IntRectangle(0, 0, scratchTexture.Size.X, scratchTexture.Size.Y),
RenderTargetSize = new IntVector2(scratchTexture.Size.X, scratchTexture.Size.Y),
});
IntRectangle renderingRectangle;
if (activeCorner == TerrainDetailCorner.BottomLeft)
{
renderingRectangle = new IntRectangle(0, 0, 121, 121);
}
else if (activeCorner == TerrainDetailCorner.BottomRight)
{
renderingRectangle = new IntRectangle(120, 0, 121, 121);
}
else if (activeCorner == TerrainDetailCorner.TopLeft)
{
renderingRectangle = new IntRectangle(0, 120, 121, 121);
}
else if (activeCorner == TerrainDetailCorner.TopRight)
{
renderingRectangle = new IntRectangle(120, 120, 121, 121);
}
else
{
Preconditions.Fail("Unsupported activeCorner " + activeCorner);
renderingRectangle = new IntRectangle(0, 0, 1, 1);
}
await _renderer.AddOrder(new TextureRenderingTemplate()
{
CanMultistep = false,
CreateTexture2D = false,
RenderTextureToModify = (RenderTexture)outTexture.Texture,
ShaderName = "Custom/TerrainDetailMerger/ScratchToActive",
UniformPack = uniforms,
RenderingRectangle = renderingRectangle,
RenderTargetSize = new IntVector2(241, 241),
});
}
