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voxel-engine
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delete meshes relative to deleted chunks

fix-multithread
EmaMaker 2023-10-03 16:02:49 +02:00
parent bc3c5587f8
commit 4c46811a25
4 changed files with 36 additions and 23 deletions
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13
include/renderer.hpp
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@ -26,8 +26,20 @@ namespace renderer{
buffers_allocated=true;
}
void deallocateBuffers(){
// Allocate buffers
glDeleteBuffers(1, &VBO);
glDeleteBuffers(1, &extentsBuffer);
glDeleteBuffers(1, &texinfoBuffer);
glDeleteVertexArrays(1, &VAO);
buffers_allocated=false;
}
} RenderInfo;
typedef oneapi::tbb::concurrent_queue<int32_t> IndexQueue;
void init(GLFWwindow* window);
void send_chunk_to_gpu(ChunkMeshData* mesh_data, RenderInfo* render_info);
void render();
@ -39,6 +51,7 @@ namespace renderer{
Shader* getRenderShader();
ChunkMeshDataQueue& getMeshDataQueue();
IndexQueue& getDeleteIndexQueue();
};

15
src/chunkmanager.cpp
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@ -108,6 +108,7 @@ namespace chunkmanager
Chunk::Chunk* c = a->second;
if(chunks.erase(a)){
nUnloaded++;
renderer::getDeleteIndexQueue().push(index);
delete c;
} else std::cout << "failed to delete " << index << std::endl;
} else std::cout << "no such element found to delete\n";
@ -200,17 +201,9 @@ namespace chunkmanager
});
/*std::cout << "time: " << glfwGetTime() << "\ntotal: " << chunks.size() << "\ngenerated: " << nGenerated << "\nmeshed: "
<< nMeshed << "\nunloaded from prev loop: " << nUnloaded << "\nnew marked for
unload: " << nMarkUnload << std::endl;
debug::window::set_parameter("update_chunks_total", (int) chunks.size());
debug::window::set_parameter("update_chunks_buckets", (int) chunks.bucket_count());
debug::window::set_parameter("update_chunks_freed", nUnloaded);
debug::window::set_parameter("update_chunks_generated", nGenerated);
debug::window::set_parameter("update_chunks_meshed", nMeshed);
debug::window::set_parameter("update_chunks_explored", nExplored);
debug::window::set_parameter("update_chunks_tobedeleted", 0);*/
std::cout << "time: " << glfwGetTime() << "\ntotal: " << chunks.size() << "\ngenerated: " << nGenerated << "\nmeshed: "
<< nMeshed << "\nunloaded from prev loop: " << nUnloaded << "\nnew marked for unload: " << nMarkUnload << std::endl;
}
}

11
src/debugwindow.cpp
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@ -99,18 +99,15 @@ namespace debug{
}
if(ImGui::CollapsingHeader("Mesh")){
ImGui::Text("Total chunks updated: %d",
ImGui::Text("Total chunk meshed: %d",
std::any_cast<int>(parameters.at("render_chunks_total")));
ImGui::Text("Of which renderable (not empty): %d",
std::any_cast<int>(parameters.at("render_chunks_renderable")));
ImGui::Text("Chunks rendered: %d",
std::any_cast<int>(parameters.at("render_chunks_rendered")));
ImGui::Text("Frustum culled: %d",
std::any_cast<int>(parameters.at("render_chunks_culled")));
ImGui::Text("Chunks out of view: %d",
std::any_cast<int>(parameters.at("render_chunks_oof")));
if(parameters.find("render_chunks_deleted") != parameters.end())
ImGui::Text("Chunks deleted: %d",
std::any_cast<int>(parameters.at("render_chunks_deleted")));
ImGui::Text("Vertices in the scene: %d",
ImGui::Text("Total vertices in the scene: %d",
std::any_cast<int>(parameters.at("render_chunks_vertices")));
ImGui::Checkbox("Wireframe",
std::any_cast<bool*>(parameters.at("wireframe_return")));

20
src/renderer.cpp
View File

@ -18,6 +18,7 @@ namespace renderer{
RenderTable ChunksToRender;
ChunkMeshDataQueue MeshDataQueue;
IndexQueue MeshDataToDelete;
Shader* theShader, *quadShader;
GLuint chunkTexture;
@ -30,6 +31,7 @@ namespace renderer{
Shader* getRenderShader() { return theShader; }
ChunkMeshDataQueue& getMeshDataQueue(){ return MeshDataQueue; }
IndexQueue& getDeleteIndexQueue(){ return MeshDataToDelete; }
void init(GLFWwindow* window){
// Setup rendering
@ -140,8 +142,6 @@ namespace renderer{
theShader->use();
theShader->setVec3("viewPos", cameraPos);
// TODO: works but some stuff is rendered wrong (trees floating or inside the terrain,
// missing or malformed chunks)
ChunkMeshData* m;
while(MeshDataQueue.try_pop(m)){
RenderTable::accessor a;
@ -166,17 +166,26 @@ namespace renderer{
}
// TODO: implement removal of chunks from rendering
std::cout << "chunks to render: " << ChunksToRender.size();
int32_t queue_index;
while(MeshDataToDelete.try_pop(queue_index)){
RenderTable::accessor a;
if(ChunksToRender.find(a, queue_index)){
RenderInfo* render_info = a->second;
render_info->deallocateBuffers();
delete render_info;
ChunksToRender.erase(a);
}
}
// Render the chunks
// parallel_for cannot be used since all the rendering needs to happen in a single thread
for(RenderTable::iterator i = ChunksToRender.begin(); i != ChunksToRender.end(); i++){
RenderInfo* render_info = i->second;
total++;
if(render_info->num_vertices > 0)
{
total++;
// Increase total vertex count
vertices += render_info->num_vertices;
@ -217,8 +226,9 @@ namespace renderer{
}
}
debug::window::set_parameter("render_chunks_total", total);
debug::window::set_parameter("render_chunks_total", (int)(ChunksToRender.size()));
debug::window::set_parameter("render_chunks_rendered", toGpu);
debug::window::set_parameter("render_chunks_renderable", total);
debug::window::set_parameter("render_chunks_culled", total-toGpu);
debug::window::set_parameter("render_chunks_vertices", vertices);