public PaintContext AcquireHolesTexture(bool writable, Terrain terrain, Rect boundsInTerrainSpace, int extraBorderPixels = 0)
{
m_WriteToHoles = writable;
#if UNITY_2019_3_OR_NEWER
m_HolesContext = TerrainPaintUtility.BeginPaintHoles(terrain, boundsInTerrainSpace, extraBorderPixels);
#endif
return(m_HolesContext);
}
public PaintContext AcquireHolesTexture(bool writable, Terrain terrain, Rect boundsInTerrainSpace, int extraBorderPixels = 0)
{
m_WriteToHoles = writable;
#if UNITY_2019_3_OR_NEWER
m_HolesContext = TerrainPaintUtility.BeginPaintHoles(terrain, boundsInTerrainSpace, extraBorderPixels);
if (m_HolesContext == null)
{
return(null);
}
m_HolesContext.sourceRenderTexture.name = $"{m_Name}::HolesContext::SourceRT";
m_HolesContext.destinationRenderTexture.name = $"{m_Name}::HolesContext::DestRT";
#endif
return(m_HolesContext);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.uv, editContext.brushSize, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHoles(terrain, brushXform.GetBrushXYBounds());
Material mat = TerrainPaintUtility.GetBuiltinPaintMaterial();
float brushStrength = Event.current.shift ? editContext.brushStrength : -editContext.brushStrength;
Vector4 brushParams = new Vector4(brushStrength, 0.0f, 0.0f, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
TerrainPaintUtility.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, (int)TerrainPaintUtility.BuiltinPaintMaterialPasses.PaintHoles);
TerrainPaintUtility.EndPaintHoles(paintContext, "Terrain Paint - Paint Holes");
return(true);
}