fix #6341

spring · Jul 2, 2020 · f7b65ae · f7b65ae
1 parent aea3617
commit f7b65ae
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/rts/Map/HeightMapTexture.cpp b/rts/Map/HeightMapTexture.cpp
@@ -83,7 +83,7 @@ void HeightMapTexture::UnsyncedHeightMapUpdate(const SRectangle& rect)
 	pbo.New(sizeX * sizeZ * sizeof(float));
 
 	const float* heightMap = readMap->GetCornerHeightMapUnsynced();
-	      float* heightBuf = reinterpret_cast<float*>(pbo.MapBuffer());
+	      float* heightBuf = reinterpret_cast<float*>(pbo.MapBuffer(0, pbo.bufSize, GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT | pbo.mapUnsyncedBit));
 
 	if (heightBuf != nullptr) {
 		for (int z = 0; z < sizeZ; z++) {
@@ -99,5 +99,6 @@ void HeightMapTexture::UnsyncedHeightMapUpdate(const SRectangle& rect)
 	glBindTexture(GL_TEXTURE_2D, texID);
 	glTexSubImage2D(GL_TEXTURE_2D, 0,  rect.x1, rect.z1, sizeX, sizeZ,  GL_RED, GL_FLOAT, pbo.GetPtr());
 
+	pbo.Invalidate();
 	pbo.Unbind();
 }