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EvilMuffinHa 2020-05-30 16:12:29 -04:00
parent 11f3160846
commit 1219096138
1 changed files with 0 additions and 61 deletions
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src/org/hl/engine/graphics/ModelLoader.java
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package org.hl.engine.graphics;
import org.hl.engine.math.lalg.Vector2f;
import org.hl.engine.math.lalg.Vector3f;
import org.lwjgl.assimp.*;
public class ModelLoader {
public static Mesh loadModel(String path, String texture) throws Exception {
AIScene scene = Assimp.aiImportFile(path, Assimp.aiProcess_JoinIdenticalVertices | Assimp.aiProcess_Triangulate);
if (scene == null) {
throw new Exception("Couldn't load model at " + path);
}
AIMesh mesh = AIMesh.create(scene.mMeshes().get(0));
int vertexCount = mesh.mNumVertices();
AIVector3D.Buffer vertices = mesh.mVertices();
AIVector3D.Buffer normals = mesh.mNormals();
Vertex[] vertexList = new Vertex[vertexCount];
for (int i = 0; i < vertexCount; i ++) {
AIVector3D vertex = vertices.get(i);
Vector3f engineVertex = new Vector3f(vertex.x(), vertex.y(), vertex.z());
AIVector3D normal = normals.get(i);
Vector3f engineNormal = new Vector3f(normal.x(), normal.y(), normal.z());
Vector2f meshTextureCoord = new Vector2f(0, 0);
if (mesh.mNumUVComponents().get(0) != 0) {
AIVector3D tex = mesh.mTextureCoords(0).get(i);
meshTextureCoord.setX(tex.x());
meshTextureCoord.setY(tex.y());
}
vertexList[i] = new Vertex(engineVertex, meshTextureCoord, engineNormal);
}
int faceCount = mesh.mNumFaces();
AIFace.Buffer indices = mesh.mFaces();
int[] indicesList = new int[faceCount*3];
for (int i = 0; i < faceCount; i ++) {
AIFace face = indices.get(i);
indicesList[i * 3 + 0] = face.mIndices().get(0);
indicesList[i * 3 + 1] = face.mIndices().get(1);
indicesList[i * 3 + 2] = face.mIndices().get(2);
}
return new Mesh(vertexList, indicesList, new Material(new Texture(texture)), "texture");
}
}