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Correct scene making, merged the old raw into the new.

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added option to automatically write the raw obj file
Added scene colors to the obj
use proper scene colors from hf
This commit is contained in:
Aaron Kimbrell
2025-10-15 19:56:46 -05:00
parent 12fd9d0a21
commit accdb4f9a1
19 changed files with 720 additions and 314 deletions
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87
dZoneManager/Raw.cpp
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@@ -1,7 +1,9 @@
#include "Raw.h"
#include "BinaryIO.h"
#include "Logger.h"
#include "SceneColor.h"
#include <fstream>
#include <algorithm>
namespace Raw {
@@ -279,16 +281,22 @@ namespace Raw {
return; // No scene data available
}
LOG("GenerateTerrainMesh: Processing %u chunks", raw.chunks.size());
uint32_t vertexOffset = 0;
for (const auto& chunk : raw.chunks) {
// Skip chunks without scene maps
if (chunk.sceneMap.empty() || chunk.colorMapResolution == 0 || chunk.heightMap.empty()) {
LOG("Skipping chunk %u (sceneMap: %zu, colorMapRes: %u, heightMap: %zu)",
chunk.id, chunk.sceneMap.size(), chunk.colorMapResolution, chunk.heightMap.size());
continue;
}
LOG("Processing chunk %u: width=%u, height=%u, colorMapRes=%u, sceneMapSize=%zu",
chunk.id, chunk.width, chunk.height, chunk.colorMapResolution, chunk.sceneMap.size());
// Generate vertices for this chunk
// Similar to RawChunk::GenerateMesh() in dTerrain but with scene IDs
for (uint32_t i = 0; i < chunk.width; ++i) {
for (uint32_t j = 0; j < chunk.height; ++j) {
// Get height at this position
@@ -310,21 +318,23 @@ namespace Raw {
NiPoint3 worldPos(worldX, worldY, worldZ);
// Get scene ID at this position
// Map heightmap position to scene map position
const float sceneMapX = (static_cast<float>(i) / static_cast<float>(chunk.width - 1)) * static_cast<float>(chunk.colorMapResolution - 1);
const float sceneMapZ = (static_cast<float>(j) / static_cast<float>(chunk.height - 1)) * static_cast<float>(chunk.colorMapResolution - 1);
const uint32_t sceneX = std::min(static_cast<uint32_t>(sceneMapX), chunk.colorMapResolution - 1);
const uint32_t sceneZ = std::min(static_cast<uint32_t>(sceneMapZ), chunk.colorMapResolution - 1);
const uint32_t sceneIndex = sceneZ * chunk.colorMapResolution + sceneX;
// Get scene ID at this position
// Map heightmap position to scene map position
// The scene map is colorMapResolution x colorMapResolution
// We need to map from heightmap coordinates (i, j) to scene map coordinates
const float sceneMapI = (static_cast<float>(i) / static_cast<float>(chunk.width - 1)) * static_cast<float>(chunk.colorMapResolution - 1);
const float sceneMapJ = (static_cast<float>(j) / static_cast<float>(chunk.height - 1)) * static_cast<float>(chunk.colorMapResolution - 1);
const uint32_t sceneI = std::min(static_cast<uint32_t>(sceneMapI), chunk.colorMapResolution - 1);
const uint32_t sceneJ = std::min(static_cast<uint32_t>(sceneMapJ), chunk.colorMapResolution - 1);
// Scene map uses the same indexing pattern as heightmap: row * width + col
const uint32_t sceneIndex = sceneI * chunk.colorMapResolution + sceneJ;
uint8_t sceneID = 0;
if (sceneIndex < chunk.sceneMap.size()) {
sceneID = chunk.sceneMap[sceneIndex];
}
outMesh.vertices.emplace_back(worldPos, sceneID);
uint8_t sceneID = 0;
if (sceneIndex < chunk.sceneMap.size()) {
sceneID = chunk.sceneMap[sceneIndex];
}
outMesh.vertices.emplace_back(worldPos, sceneID);
// Generate triangles (same pattern as dTerrain)
if (i > 0 && j > 0) {
@@ -346,8 +356,49 @@ namespace Raw {
}
}
vertexOffset += chunk.width * chunk.height;
}
vertexOffset += chunk.width * chunk.height;
}
}
} // namespace Raw
bool WriteTerrainMeshToOBJ(const TerrainMesh& mesh, const std::string& path) {
try {
std::ofstream file(path);
if (!file.is_open()) {
LOG("Failed to open OBJ file for writing: %s", path.c_str());
return false;
}
// Create instance of SceneColor for color lookup
SceneColor sceneColor;
// Write vertices with colors
// OBJ format supports vertex colors as: v x y z r g b
for (const auto& v : mesh.vertices) {
file << "v " << v.position.x << ' ' << v.position.y << ' ' << v.position.z;
uint8_t sceneID = v.sceneID;
const NiColor& color = sceneColor.Get(sceneID);
file << ' ' << color.m_Red << ' ' << color.m_Green << ' ' << color.m_Blue;
file << '\n';
}
// Write faces (triangles)
for (size_t i = 0; i < mesh.triangles.size(); i += 3) {
// OBJ indices are 1-based
file << "f " << (mesh.triangles[i] + 1) << ' '
<< (mesh.triangles[i + 1] + 1) << ' '
<< (mesh.triangles[i + 2] + 1) << '\n';
}
file.close();
LOG("Successfully wrote terrain mesh to OBJ: %s (%zu vertices, %zu triangles)",
path.c_str(), mesh.vertices.size(), mesh.triangles.size() / 3);
return true;
} catch (const std::exception& e) {
LOG("Exception while writing OBJ file: %s", e.what());
return false;
}
}
} // namespace Raw