public void Render(stHeightData heightData, Vector3 vectorScale)
{
Profiler.BeginSample("CGeomipmappin.Render.Rebuild UV and Vertex");
for (int z = 0; z < mPatchSize; ++z)
{
for (int x = 0; x < mPatchSize; ++x)
{
//相对于Patch的偏移
int xOffsetFromPatchCentexX = x - CenterXInPatch;
int zOffsetFromPatchCentexZ = z - CenterZInPatch;
//顶点在Patch的位置
int inPatchIdx = z * mPatchSize + x;
//在高度图里面的位置
int indexX = PatchCenterXInHeight + xOffsetFromPatchCentexX;
int indexZ = PatchCenterZInHeight + zOffsetFromPatchCentexZ;
float height = heightData.GetRawHeightValue(indexX, indexZ) * vectorScale.y;
float xPos = indexX * vectorScale.x;
float zPos = indexZ * vectorScale.z;
mVertices[inPatchIdx] = new Vector3(xPos, height, zPos);
mUV[inPatchIdx] = new Vector2((float)indexX / (float)heightData.mSize, (float)indexZ / (float)heightData.mSize);
mNormals[inPatchIdx] = Vector3.zero;
}
}
Profiler.EndSample();
Profiler.BeginSample("CGeomipmappin.Render.Rebuild Triangles");
int nIdx = 0;
for (int z = 0; z < mPatchSize - 1; ++z)
{
for (int x = 0; x < mPatchSize - 1; ++x)
{
int bottomLeftIdx = z * mPatchSize + x;
int topLeftIdx = (z + 1) * mPatchSize + x;
int topRightIdx = topLeftIdx + 1;
int bottomRightIdx = bottomLeftIdx + 1;
mTriangles[nIdx++] = bottomLeftIdx;
mTriangles[nIdx++] = topLeftIdx;
mTriangles[nIdx++] = bottomRightIdx;
mTriangles[nIdx++] = topLeftIdx;
mTriangles[nIdx++] = topRightIdx;
mTriangles[nIdx++] = bottomRightIdx;
}
}
Profiler.EndSample();
}
}// Reset
public void DrawGizoms(stHeightData heightData, Vector3 vectorScale, float gizmosScale)
{
for (int z = 0; z < mPatchSize; ++z)
{
for (int x = 0; x < mPatchSize; ++x)
{
//相对于Patch的偏移
int xOffsetFromPatchCentexX = x - CenterXInPatch;
int zOffsetFromPatchCentexZ = z - CenterZInPatch;
//在高度图里面的位置
int indexX = PatchCenterXInHeight + xOffsetFromPatchCentexX;
int indexZ = PatchCenterZInHeight + zOffsetFromPatchCentexZ;
float height = heightData.GetRawHeightValue(indexX, indexZ) * vectorScale.y;
float xPos = indexX * vectorScale.x;
float zPos = indexZ * vectorScale.z;
Gizmos.DrawSphere(new Vector3(xPos, height, zPos), gizmosScale);
}
}
}