override public void PaintSegments(StrokeSegment[] segments, IOnPaint editContext)
{
for (int i = 0; i < segments.Length; i++)
{
StrokeSegment segment = segments[i];
Smudge(segment.currTerrain, editContext, segment.currUV, segment.prevUV);
}
}
override public void PaintSegments(StrokeSegment[] segments, IOnPaint editContext, BrushSettings brushSettings)
{
for (int i = 0; i < segments.Length; i++)
{
StrokeSegment segment = segments[i];
PaintTexture(segment.currTerrain, editContext, segment.currUV, brushSettings);
}
}
override public void PaintSegments(StrokeSegment[] segments, IOnPaint editContext)
{
for (int i = 0; i < segments.Length; i++)
{
StrokeSegment segment = segments[i];
Bridge(segment.currTerrain, editContext, segment.currUV, segment.pct, segment.stroke, segment.startPoint);
}
}
override public void PaintSegments(StrokeSegment[] segments, IOnPaint editContext)
{
for (int i = 0; i < segments.Length; i++)
{
// first item doesn't have prevUV
if (i == 0)
{
continue;
}
StrokeSegment segment = segments[i];
Smudge(segment.currTerrain, editContext, segment.currUV, segment.prevUV);
}
}
override public void Update(StrokeSegment[] segments)
{
#if VEGETATION_STUDIO_PRO
if (segments.Length > 0)
{
StrokeSegment segment = segments[0];
Bounds bounds = new Bounds(new Vector3(segment.currUV.x, 0, segment.currUV.y), Vector3.zero);;
for (int i = 1; i < segments.Length; i++)
{
segment = segments[i];
Vector2 boundsWS = TransformUtilities.transformToWorld(segment.currTerrain, segment.currUV);
bounds.Encapsulate(new Vector3(boundsWS.x, 0, boundsWS.y));
}
VegetationStudioManager.RefreshTerrainHeightMap(bounds);
}
#endif
}
private StrokeSegment[] GetStrokeSegments(Terrain terrain, IOnPaint editContext)
{
Vector2 uv = editContext.uv;
//get the target position & height
float targetHeight = terrain.terrainData.GetInterpolatedHeight(uv.x, uv.y) / terrain.terrainData.size.y;
Vector3 targetPos = new Vector3(uv.x, uv.y, targetHeight);
if (terrain != m_StartTerrain)
{
//figure out the stroke vector in uv,height space
Vector2 targetWorld = TransformUtilities.transformToWorld(terrain, uv);
Vector2 targetUVs = TransformUtilities.transformToUVSpace(m_StartTerrain, targetWorld);
targetPos.x = targetUVs.x;
targetPos.y = targetUVs.y;
}
Vector3 stroke = targetPos - m_StartPoint;
float strokeLength = stroke.magnitude;
int numSplats = 1; // (int)(strokeLength / (0.001f * m_Spacing)); <= TODO keeping numsplats at 1 for now, otherwise it would drain performance in paint mode; see also paintDirection.magnitude > 1
Terrain currTerrain = m_StartTerrain;
Vector2 posOffset = new Vector2(0.0f, 0.0f);
Vector2 currUV = new Vector2();
Vector2 jitterVec = new Vector2(-stroke.z, stroke.x); //perpendicular to stroke direction
jitterVec.Normalize();
Vector2 prevUV = Vector2.zero;
StrokeSegment[] segments = new StrokeSegment[numSplats];
for (int i = 0; i < numSplats; i++)
{
float pct = (float)i / (float)numSplats;
float jitterOffset = jitterProfile.Evaluate(pct) / Mathf.Max(currTerrain.terrainData.size.x, currTerrain.terrainData.size.z);
Vector3 currPos = m_StartPoint + pct * stroke;
//add in jitter offset (needs to happen before tile correction)
currPos.x += posOffset.x + jitterOffset * jitterVec.x;
currPos.y += posOffset.y + jitterOffset * jitterVec.y;
if (currPos.x >= 1.0f && (currTerrain.rightNeighbor != null))
{
currTerrain = currTerrain.rightNeighbor;
currPos.x -= 1.0f;
posOffset.x -= 1.0f;
}
if (currPos.x <= 0.0f && (currTerrain.leftNeighbor != null))
{
currTerrain = currTerrain.leftNeighbor;
currPos.x += 1.0f;
posOffset.x += 1.0f;
}
if (currPos.y >= 1.0f && (currTerrain.topNeighbor != null))
{
currTerrain = currTerrain.topNeighbor;
currPos.y -= 1.0f;
posOffset.y -= 1.0f;
}
if (currPos.y <= 0.0f && (currTerrain.bottomNeighbor != null))
{
currTerrain = currTerrain.bottomNeighbor;
currPos.y += 1.0f;
posOffset.y += 1.0f;
}
currUV.x = currPos.x;
currUV.y = currPos.y;
StrokeSegment ctx = new StrokeSegment();
ctx.pct = pct;
ctx.currTerrain = currTerrain;
ctx.currUV = currUV;
ctx.stroke = stroke;
ctx.prevUV = prevUV;
ctx.startPoint = m_StartPoint;
segments[i] = ctx;
prevUV = currUV;
}
return(segments);
}
