public override void OnImportAsset(AssetImportContext ctx)
{
// We're using a hardcoded window size of 100x100. This way, using a pixels per point value of 100
// results in a sprite of size 1 when the SVG file has a viewbox specified.
SVGParser.SceneInfo sceneInfo;
using (StreamReader stream = new StreamReader(ctx.assetPath))
{
sceneInfo = SVGParser.ImportSVG(stream, 0, 1, 100, 100, PreserveViewport);
}
if (sceneInfo.Scene == null || sceneInfo.Scene.Root == null)
{
throw new Exception("Wowzers!");
}
float stepDist = StepDistance;
float samplingStepDist = SamplingStepDistance;
float maxCord = MaxCordDeviationEnabled ? MaxCordDeviation : float.MaxValue;
float maxTangent = MaxTangentAngleEnabled ? MaxTangentAngle : Mathf.PI * 0.5f;
if (!AdvancedMode)
{
// Automatically compute sensible tessellation options from the
// vector scene's bouding box and target resolution
ComputeTessellationOptions(sceneInfo, TargetResolution, ResolutionMultiplier, out stepDist, out maxCord, out maxTangent);
}
var tessOptions = new ShapeUtils.TessellationOptions();
tessOptions.MaxCordDeviation = maxCord;
tessOptions.MaxTanAngleDeviation = maxTangent;
tessOptions.SamplingStepSize = 1.0f / (float)samplingStepDist;
tessOptions.StepDistance = stepDist;
var rect = Rect.zero;
if (PreserveViewport)
{
rect = sceneInfo.SceneViewport;
}
var geometry = ShapeUtils.TessellateScene(sceneInfo.Scene, tessOptions, sceneInfo.NodeOpacity);
string name = System.IO.Path.GetFileNameWithoutExtension(ctx.assetPath);
var gameObject = new GameObject("Shape" + name, typeof(MeshFilter), typeof(MeshRenderer));
var mesh = new Mesh();
mesh.name = "Mesh" + name;
CalculateSideExtrusion(mesh, geometry);
mesh.RecalculateBounds();
mesh.RecalculateNormals();
var mat = new Material(Shader.Find("Standard"));
mat.name = "Material" + name;
gameObject.GetComponent <MeshFilter>().mesh = mesh;
gameObject.GetComponent <MeshRenderer>().material = mat;
ctx.AddObjectToAsset("shape", gameObject);
ctx.AddObjectToAsset("mesh", mesh);
ctx.AddObjectToAsset("material", mat);
ctx.SetMainObject(gameObject);
}
