// do gaussian blur
public void blur()
{
// blur selected layer or all
tex = Gaussian.FilterProcessImage(blurStrength, tex);
pixels = tex.GetPixels(); // update pixels array also
Selection.activeGameObject.GetComponent <Renderer>().sharedMaterial.SetTexture("_Mask", tex);
isDirty = true;
saveToDisk();
}
private Color[] brushPixels; // array of brush pixels
// *** main splatmask creation function ***
public void createSplatMask(int texResolution)
{
// take current game object (must be better way..), maybe this.gameObject
GameObject go = Selection.activeGameObject;
// check: we have selection?
// check: has collider?
// create texture
/*
* if (realTimePreviewEnabled)
* {
* maskResolution = maskPreviewResolution;
* }
*/
tex = new Texture2D(texResolution, texResolution, TextureFormat.ARGB32, true);
tex.hideFlags = HideFlags.DontSave;
Bounds area = Selection.activeGameObject.GetComponent <Renderer>().bounds;
// Debug.Log("bounds:"+area.min+" to "+area.max+" , size:"+area.size.x);
faceAngles = new float[texResolution, texResolution];
pixels = new Color[texResolution * texResolution];
// float pixelStep = area.size.x/maskResolution;
float pixelStepX = area.size.x / texResolution;
float pixelStepZ = area.size.z / texResolution;
Mesh mesh = Selection.activeGameObject.GetComponent <MeshFilter>().sharedMesh;
Vector3[] normals = mesh.normals;
int[] triangles = mesh.triangles;
RaycastHit hit;
int xx = 0;
int yy = 0;
for (float z = area.min.z + pixelStepZ / 2; z < area.max.z; z += pixelStepZ)
{
xx = 0;
for (float x = area.min.x + pixelStepX / 2; x < area.max.x; x += pixelStepX)
{
float r = 0;
float g = 0;
float b = 0;
float a = 0;
//Debug.DrawLine(new Vector3(x,100,y), new Vector3(x,0,y), Color.red, 5);
//if (Physics.Raycast(new Vector3(x,200,y), -Vector3.up, out hit, 9999.0F))
Ray ray = new Ray(new Vector3(x, area.max.y + 1, z), -Vector3.up); // FIXME: 9999 could be taken from maxheight
if (Selection.activeGameObject.GetComponent <Collider>().Raycast(ray, out hit, 19999.0F)) // FIXME: 19999 could be taken from maxheight
{
// Debug.DrawRay(new Vector3(x,100,y), transform.TransformPoint(hit.point), Color.red, 5);
//Debug.DrawLine(new Vector3(x,100,y), hit.point, Color.blue, 5);
//Debug.DrawLine(new Vector3(x,100,y), new Vector3(x,0,y), Color.green, 5);
Vector3 n0 = normals[triangles[hit.triangleIndex * 3 + 0]];
Vector3 n1 = normals[triangles[hit.triangleIndex * 3 + 1]];
Vector3 n2 = normals[triangles[hit.triangleIndex * 3 + 2]];
Vector3 baryCenter = hit.barycentricCoordinate;
Vector3 interpolatedNormal = n0 * baryCenter.x + n1 * baryCenter.y + n2 * baryCenter.z;
interpolatedNormal = interpolatedNormal.normalized;
Transform hitTransform = hit.collider.transform;
interpolatedNormal = hitTransform.TransformDirection(interpolatedNormal);
//Debug.DrawRay(hit.point, interpolatedNormal*5, Color.yellow, 5);
//float distanceToGround = hit.distance;
//float a = Vector3.Angle(hit.normal, transform.forward);
float angle = Vector3.Angle(interpolatedNormal, Selection.activeGameObject.transform.forward);
//InverseLerp
faceAngles[xx, yy] = angle;
// get colors
if (angle <= flatRangeMax)
{
r = 1;
}
if (angle > flatRangeMax & angle <= mediumRangeMax)
{
g = 1;
}
if (angle > mediumRangeMax)
{
b = 1;
}
// a = road mask
//float p = Mathf.PerlinNoise(xx*0.01f,yy*0.01f);
//a = p>0.5f&&p<0.6f?a=1:a=0;
// check for obstacles around hitpoint
if (checkColliderObjects)
{
LayerMask layerMask = 1 << objCollidersLayer; //LayerMask.LayerToName(objCollidersLayer);
Collider[] hitColliders = Physics.OverlapSphere(hit.point, obstacleRadius, layerMask);
if (hitColliders.Length > 0)
{
a = 1;
}
}
pixels[xx + yy * texResolution] = new Color(r, g, b, a);
}
else
{
// set a default color anyway to suport holes in the surface and to avoid black seams
pixels[xx + yy * texResolution] = new Color(1, 0, 0, 0);
//r=1;
//b=1;
//Debug.DrawLine(new Vector3(x,100,y), new Vector3(x,0,y), Color.yellow, 5);
}
// always increment, to support not rectangular surfaces
xx++;
//tex.SetPixel((int)x,(int)y,new Color(r,g,b,1));
//Debug.Log((int)x+(int)y*(int)resolution);
//Debug.Log("xx"+xx+" | "+xx+yy*(int)resolution);
}
yy++;
}
// ROAD , houses? mask
tex.SetPixels(pixels);
tex.Apply();
// blurring
if (doBlur)
{
// TODO: blur alpha?
tex = Gaussian.FilterProcessImage(blurStrength, tex);
}
// apply to object?
// check if has _mask?
// if(m.HasProperty("_MainTex"))
Selection.activeGameObject.GetComponent <Renderer>().sharedMaterial.SetTexture("_Mask", tex);
//Selection.activeGameObject.renderer.material.SetTexture("_Mask", tex);
// 0 - 90
//Debug.Log("minmax:"+mina+"/"+maxa);
// save texture
if (saveFile)
{
isDirty = true;
saveToDisk();
}
// assign texture?
// renderer.material.SetTexture("_Mask", tex);
//DestroyImmediate(tex);
}