528 lines
20 KiB
Java
528 lines
20 KiB
Java
|
package com.chuangzhou.vivid2D.render;
|
|||
|
|
|
|||
|
|
import com.chuangzhou.vivid2D.render.model.Model2D;
|
|||
|
|
import com.chuangzhou.vivid2D.render.model.ModelPart;
|
|||
|
|
import com.chuangzhou.vivid2D.render.model.util.Mesh2D;
|
|||
|
|
import com.chuangzhou.vivid2D.render.model.util.Texture;
|
|||
|
|
import org.joml.Matrix3f;
|
|||
|
|
import org.joml.Vector4f;
|
|||
|
|
import org.lwjgl.opengl.*;
|
|||
|
|
import org.lwjgl.system.MemoryUtil;
|
|||
|
|
|
|||
|
|
import java.nio.ByteBuffer;
|
|||
|
|
import java.nio.FloatBuffer;
|
|||
|
|
import java.nio.IntBuffer;
|
|||
|
|
import java.util.*;
|
|||
|
|
import java.util.concurrent.atomic.AtomicInteger;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 重构后的 ModelRender：更模块化、健壮的渲染子系统
|
|||
|
|
*/
|
|||
|
|
public final class ModelRender {
|
|||
|
|
|
|||
|
|
private ModelRender() { /* no instances */ }
|
|||
|
|
|
|||
|
|
// ================== 全局状态 ==================
|
|||
|
|
private static boolean initialized = false;
|
|||
|
|
private static int viewportWidth = 800;
|
|||
|
|
private static int viewportHeight = 600;
|
|||
|
|
private static final Vector4f CLEAR_COLOR = new Vector4f(0.0f, 0.0f, 0.0f, 1.0f);
|
|||
|
|
private static boolean enableDepthTest = false;
|
|||
|
|
private static boolean enableBlending = true;
|
|||
|
|
|
|||
|
|
// 着色器与资源
|
|||
|
|
private static final Map<String, ShaderProgram> shaderMap = new HashMap<>();
|
|||
|
|
private static ShaderProgram defaultProgram = null;
|
|||
|
|
|
|||
|
|
private static final Map<Mesh2D, MeshGLResources> meshResources = new HashMap<>();
|
|||
|
|
private static final AtomicInteger textureUnitAllocator = new AtomicInteger(0);
|
|||
|
|
|
|||
|
|
// 默认白色纹理
|
|||
|
|
private static int defaultTextureId = 0;
|
|||
|
|
|
|||
|
|
// ================== 内部类：ShaderProgram ==================
|
|||
|
|
private static class ShaderProgram {
|
|||
|
|
final int programId;
|
|||
|
|
final Map<String, Integer> uniformCache = new HashMap<>();
|
|||
|
|
|
|||
|
|
ShaderProgram(int programId) {
|
|||
|
|
this.programId = programId;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void use() {
|
|||
|
|
GL20.glUseProgram(programId);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void stop() {
|
|||
|
|
GL20.glUseProgram(0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
int getUniformLocation(String name) {
|
|||
|
|
return uniformCache.computeIfAbsent(name, k -> {
|
|||
|
|
int loc = GL20.glGetUniformLocation(programId, k);
|
|||
|
|
if (loc == -1) {
|
|||
|
|
// debug 时可以打开
|
|||
|
|
// System.err.println("Warning: uniform not found: " + k);
|
|||
|
|
}
|
|||
|
|
return loc;
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void delete() {
|
|||
|
|
if (GL20.glIsProgram(programId)) GL20.glDeleteProgram(programId);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ================== 内部类：MeshGLResources ==================
|
|||
|
|
private static class MeshGLResources {
|
|||
|
|
int vao = 0;
|
|||
|
|
int vbo = 0;
|
|||
|
|
int ebo = 0;
|
|||
|
|
int vertexCount = 0;
|
|||
|
|
boolean initialized = false;
|
|||
|
|
|
|||
|
|
void dispose() {
|
|||
|
|
if (ebo != 0) { GL15.glDeleteBuffers(ebo); ebo = 0; }
|
|||
|
|
if (vbo != 0) { GL15.glDeleteBuffers(vbo); vbo = 0; }
|
|||
|
|
if (vao != 0) { GL30.glDeleteVertexArrays(vao); vao = 0; }
|
|||
|
|
initialized = false;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ================== 着色器源 ==================
|
|||
|
|
private static final String VERTEX_SHADER_SRC =
|
|||
|
|
"#version 330 core\n" +
|
|||
|
|
"layout(location = 0) in vec2 aPosition;\n" +
|
|||
|
|
"layout(location = 1) in vec2 aTexCoord;\n" +
|
|||
|
|
"out vec2 vTexCoord;\n" +
|
|||
|
|
"uniform mat3 uModelMatrix;\n" +
|
|||
|
|
"uniform mat3 uViewMatrix;\n" +
|
|||
|
|
"uniform mat3 uProjectionMatrix;\n" +
|
|||
|
|
"void main() {\n" +
|
|||
|
|
" vec3 p = uProjectionMatrix * uViewMatrix * uModelMatrix * vec3(aPosition, 1.0);\n" +
|
|||
|
|
" gl_Position = vec4(p.xy, 0.0, 1.0);\n" +
|
|||
|
|
" vTexCoord = aTexCoord;\n" +
|
|||
|
|
"}";
|
|||
|
|
|
|||
|
|
private static final String FRAGMENT_SHADER_SRC =
|
|||
|
|
"#version 330 core\n" +
|
|||
|
|
"in vec2 vTexCoord;\n" +
|
|||
|
|
"out vec4 FragColor;\n" +
|
|||
|
|
"uniform sampler2D uTexture;\n" +
|
|||
|
|
"uniform vec4 uColor;\n" +
|
|||
|
|
"uniform float uOpacity;\n" +
|
|||
|
|
"uniform int uBlendMode;\n" +
|
|||
|
|
"void main() {\n" +
|
|||
|
|
" vec4 tex = texture(uTexture, vTexCoord);\n" +
|
|||
|
|
" vec4 finalColor = tex * uColor;\n" +
|
|||
|
|
" if (uBlendMode == 1) finalColor.rgb = tex.rgb + uColor.rgb;\n" +
|
|||
|
|
" else if (uBlendMode == 2) finalColor.rgb = tex.rgb * uColor.rgb;\n" +
|
|||
|
|
" else if (uBlendMode == 3) finalColor.rgb = 1.0 - (1.0 - tex.rgb) * (1.0 - uColor.rgb);\n" +
|
|||
|
|
" finalColor.a = tex.a * uOpacity;\n" +
|
|||
|
|
" if (finalColor.a <= 0.001) discard;\n" +
|
|||
|
|
" FragColor = finalColor;\n" +
|
|||
|
|
"}";
|
|||
|
|
|
|||
|
|
// ================== 初始化 / 清理 ==================
|
|||
|
|
public static synchronized void initialize() {
|
|||
|
|
if (initialized) return;
|
|||
|
|
|
|||
|
|
System.out.println("Initializing ModelRender...");
|
|||
|
|
|
|||
|
|
// 需要在外部创建 OpenGL 上下文并调用 GL.createCapabilities()
|
|||
|
|
logGLInfo();
|
|||
|
|
|
|||
|
|
// 初始 GL 状态
|
|||
|
|
setupGLState();
|
|||
|
|
|
|||
|
|
// 创建默认 shader
|
|||
|
|
try {
|
|||
|
|
compileDefaultShader();
|
|||
|
|
} catch (RuntimeException ex) {
|
|||
|
|
System.err.println("Failed to compile default shader: " + ex.getMessage());
|
|||
|
|
throw ex;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 创建默认纹理
|
|||
|
|
createDefaultTexture();
|
|||
|
|
|
|||
|
|
// 初始化视口
|
|||
|
|
GL11.glViewport(0, 0, viewportWidth, viewportHeight);
|
|||
|
|
|
|||
|
|
initialized = true;
|
|||
|
|
System.out.println("ModelRender initialized successfully");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void logGLInfo() {
|
|||
|
|
System.out.println("OpenGL Vendor: " + GL11.glGetString(GL11.GL_VENDOR));
|
|||
|
|
System.out.println("OpenGL Renderer: " + GL11.glGetString(GL11.GL_RENDERER));
|
|||
|
|
System.out.println("OpenGL Version: " + GL11.glGetString(GL11.GL_VERSION));
|
|||
|
|
System.out.println("GLSL Version: " + GL20.glGetString(GL20.GL_SHADING_LANGUAGE_VERSION));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void setupGLState() {
|
|||
|
|
GL11.glClearColor(CLEAR_COLOR.x, CLEAR_COLOR.y, CLEAR_COLOR.z, CLEAR_COLOR.w);
|
|||
|
|
|
|||
|
|
if (enableBlending) {
|
|||
|
|
GL11.glEnable(GL11.GL_BLEND);
|
|||
|
|
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
|
|||
|
|
} else {
|
|||
|
|
GL11.glDisable(GL11.GL_BLEND);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (enableDepthTest) {
|
|||
|
|
GL11.glEnable(GL11.GL_DEPTH_TEST);
|
|||
|
|
GL11.glDepthFunc(GL11.GL_LEQUAL);
|
|||
|
|
} else {
|
|||
|
|
GL11.glDisable(GL11.GL_DEPTH_TEST);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
GL11.glDisable(GL11.GL_CULL_FACE);
|
|||
|
|
|
|||
|
|
checkGLError("setupGLState");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void compileDefaultShader() {
|
|||
|
|
int vs = compileShader(GL20.GL_VERTEX_SHADER, VERTEX_SHADER_SRC);
|
|||
|
|
int fs = compileShader(GL20.GL_FRAGMENT_SHADER, FRAGMENT_SHADER_SRC);
|
|||
|
|
int prog = linkProgram(vs, fs);
|
|||
|
|
ShaderProgram sp = new ShaderProgram(prog);
|
|||
|
|
shaderMap.put("default", sp);
|
|||
|
|
defaultProgram = sp;
|
|||
|
|
|
|||
|
|
// 设置一些默认 uniform（需要先 use）
|
|||
|
|
sp.use();
|
|||
|
|
setUniformIntInternal(sp, "uTexture", 0);
|
|||
|
|
setUniformFloatInternal(sp, "uOpacity", 1.0f);
|
|||
|
|
setUniformVec4Internal(sp, "uColor", new Vector4f(1,1,1,1));
|
|||
|
|
setUniformIntInternal(sp, "uBlendMode", 0);
|
|||
|
|
sp.stop();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static int compileShader(int type, String src) {
|
|||
|
|
int shader = GL20.glCreateShader(type);
|
|||
|
|
GL20.glShaderSource(shader, src);
|
|||
|
|
GL20.glCompileShader(shader);
|
|||
|
|
int status = GL20.glGetShaderi(shader, GL20.GL_COMPILE_STATUS);
|
|||
|
|
if (status == GL11.GL_FALSE) {
|
|||
|
|
String log = GL20.glGetShaderInfoLog(shader);
|
|||
|
|
GL20.glDeleteShader(shader);
|
|||
|
|
throw new RuntimeException("Shader compilation failed: " + log);
|
|||
|
|
}
|
|||
|
|
return shader;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static int linkProgram(int vs, int fs) {
|
|||
|
|
int prog = GL20.glCreateProgram();
|
|||
|
|
GL20.glAttachShader(prog, vs);
|
|||
|
|
GL20.glAttachShader(prog, fs);
|
|||
|
|
GL20.glLinkProgram(prog);
|
|||
|
|
int status = GL20.glGetProgrami(prog, GL20.GL_LINK_STATUS);
|
|||
|
|
if (status == GL11.GL_FALSE) {
|
|||
|
|
String log = GL20.glGetProgramInfoLog(prog);
|
|||
|
|
GL20.glDeleteProgram(prog);
|
|||
|
|
throw new RuntimeException("Program link failed: " + log);
|
|||
|
|
}
|
|||
|
|
// shaders can be deleted after linking
|
|||
|
|
GL20.glDetachShader(prog, vs);
|
|||
|
|
GL20.glDetachShader(prog, fs);
|
|||
|
|
GL20.glDeleteShader(vs);
|
|||
|
|
GL20.glDeleteShader(fs);
|
|||
|
|
return prog;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void createDefaultTexture() {
|
|||
|
|
// 使用 GL11.glGenTextures() 获取单个 id（更直观，避免 IntBuffer 问题）
|
|||
|
|
defaultTextureId = GL11.glGenTextures();
|
|||
|
|
GL11.glBindTexture(GL11.GL_TEXTURE_2D, defaultTextureId);
|
|||
|
|
ByteBuffer white = MemoryUtil.memAlloc(4);
|
|||
|
|
white.put((byte)255).put((byte)255).put((byte)255).put((byte)255).flip();
|
|||
|
|
GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA8, 1, 1, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, white);
|
|||
|
|
MemoryUtil.memFree(white);
|
|||
|
|
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);
|
|||
|
|
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
|
|||
|
|
GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
|
|||
|
|
|
|||
|
|
checkGLError("createDefaultTexture");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public static synchronized void cleanup() {
|
|||
|
|
if (!initialized) return;
|
|||
|
|
|
|||
|
|
System.out.println("Cleaning up ModelRender...");
|
|||
|
|
|
|||
|
|
// mesh resources
|
|||
|
|
for (MeshGLResources r : meshResources.values()) r.dispose();
|
|||
|
|
meshResources.clear();
|
|||
|
|
|
|||
|
|
// shaders
|
|||
|
|
for (ShaderProgram sp : shaderMap.values()) sp.delete();
|
|||
|
|
shaderMap.clear();
|
|||
|
|
defaultProgram = null;
|
|||
|
|
|
|||
|
|
// textures
|
|||
|
|
if (defaultTextureId != 0) {
|
|||
|
|
GL11.glDeleteTextures(defaultTextureId);
|
|||
|
|
defaultTextureId = 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
initialized = false;
|
|||
|
|
System.out.println("ModelRender cleaned up");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ================== 渲染流程 ==================
|
|||
|
|
public static void render(float deltaTime, Model2D model) {
|
|||
|
|
if (!initialized) throw new IllegalStateException("ModelRender not initialized");
|
|||
|
|
if (model == null) return;
|
|||
|
|
|
|||
|
|
// 更新模型（确保 worldTransform 已经被计算）
|
|||
|
|
model.update(deltaTime);
|
|||
|
|
|
|||
|
|
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | (enableDepthTest ? GL11.GL_DEPTH_BUFFER_BIT : 0));
|
|||
|
|
|
|||
|
|
// 使用默认 shader（保持绑定直到完成渲染）
|
|||
|
|
defaultProgram.use();
|
|||
|
|
|
|||
|
|
// 设置投影与视图（3x3 正交投影用于 2D）
|
|||
|
|
Matrix3f proj = buildOrthoProjection(viewportWidth, viewportHeight);
|
|||
|
|
setUniformMatrix3(defaultProgram, "uProjectionMatrix", proj);
|
|||
|
|
setUniformMatrix3(defaultProgram, "uViewMatrix", new Matrix3f().identity());
|
|||
|
|
|
|||
|
|
// 递归渲染所有根部件（使用 3x3 矩阵）
|
|||
|
|
Matrix3f identity = new Matrix3f().identity();
|
|||
|
|
for (ModelPart p : model.getParts()) {
|
|||
|
|
if (p.getParent() != null) continue;
|
|||
|
|
renderPartRecursive(p, identity);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
defaultProgram.stop();
|
|||
|
|
|
|||
|
|
checkGLError("render");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void renderPartRecursive(ModelPart part, Matrix3f parentMat) {
|
|||
|
|
// 使用 part 内置的局部矩阵（localTransform），并与 parentMat 相乘得到 world 矩阵
|
|||
|
|
Matrix3f local = part.getLocalTransform(); // 返回 copy
|
|||
|
|
Matrix3f world = new Matrix3f(parentMat).mul(local); // world = parent * local
|
|||
|
|
|
|||
|
|
// 把 world 矩阵传入 shader（使用 3x3）
|
|||
|
|
setUniformMatrix3(defaultProgram, "uModelMatrix", world);
|
|||
|
|
|
|||
|
|
// 设置部件相关 uniform（opacity / blend / color）
|
|||
|
|
setPartUniforms(defaultProgram, part);
|
|||
|
|
|
|||
|
|
// 绘制该部件的所有网格（使用 ModelRender 的 renderMesh）
|
|||
|
|
for (Mesh2D mesh : part.getMeshes()) {
|
|||
|
|
renderMesh(mesh);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 递归绘制子节点（传入当前 world 矩阵）
|
|||
|
|
for (ModelPart child : part.getChildren()) {
|
|||
|
|
renderPartRecursive(child, world);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void renderMesh(Mesh2D mesh) {
|
|||
|
|
// 确保 mesh 的 GL 资源已上传（ModelRender 管理 upload）
|
|||
|
|
MeshGLResources res = meshResources.computeIfAbsent(mesh, k -> new MeshGLResources());
|
|||
|
|
if (!res.initialized) uploadMeshData(mesh, res);
|
|||
|
|
|
|||
|
|
// 绑定纹理到单元0（我们使用 0 固定）
|
|||
|
|
Texture tex = mesh.getTexture();
|
|||
|
|
int texId = (tex != null && !tex.isDisposed()) ? tex.getTextureId() : defaultTextureId;
|
|||
|
|
|
|||
|
|
// active unit & bind — 确保 shader 已被 use()（调用者保证）
|
|||
|
|
GL13.glActiveTexture(GL13.GL_TEXTURE0);
|
|||
|
|
GL11.glBindTexture(GL11.GL_TEXTURE_2D, texId);
|
|||
|
|
// 将 sampler 设为 0（内部函数保证 program 绑定）
|
|||
|
|
setUniformIntInternal(defaultProgram, "uTexture", 0);
|
|||
|
|
|
|||
|
|
// 绑定 VAO 并绘制
|
|||
|
|
GL30.glBindVertexArray(res.vao);
|
|||
|
|
int drawMode = getGLDrawMode(mesh.getDrawMode());
|
|||
|
|
if (mesh.getIndices().length > 0 &&
|
|||
|
|
(drawMode == GL11.GL_TRIANGLES || drawMode == GL11.GL_TRIANGLE_STRIP || drawMode == GL11.GL_TRIANGLE_FAN)) {
|
|||
|
|
GL11.glDrawElements(drawMode, mesh.getIndices().length, GL11.GL_UNSIGNED_INT, 0);
|
|||
|
|
} else {
|
|||
|
|
GL11.glDrawArrays(drawMode, 0, res.vertexCount);
|
|||
|
|
}
|
|||
|
|
GL30.glBindVertexArray(0);
|
|||
|
|
|
|||
|
|
// 解绑纹理（避免污染后续 state）
|
|||
|
|
GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
|
|||
|
|
|
|||
|
|
checkGLError("renderMesh");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static int getGLDrawMode(int meshDrawMode) {
|
|||
|
|
switch (meshDrawMode) {
|
|||
|
|
case Mesh2D.POINTS: return GL11.GL_POINTS;
|
|||
|
|
case Mesh2D.LINES: return GL11.GL_LINES;
|
|||
|
|
case Mesh2D.LINE_STRIP: return GL11.GL_LINE_STRIP;
|
|||
|
|
case Mesh2D.TRIANGLES: return GL11.GL_TRIANGLES;
|
|||
|
|
case Mesh2D.TRIANGLE_STRIP: return GL11.GL_TRIANGLE_STRIP;
|
|||
|
|
case Mesh2D.TRIANGLE_FAN: return GL11.GL_TRIANGLE_FAN;
|
|||
|
|
default: return GL11.GL_TRIANGLES;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ================== 上传数据 ==================
|
|||
|
|
private static void uploadMeshData(Mesh2D mesh, MeshGLResources res) {
|
|||
|
|
System.out.println("Uploading mesh data: " + mesh.getName());
|
|||
|
|
|
|||
|
|
res.vao = GL30.glGenVertexArrays();
|
|||
|
|
GL30.glBindVertexArray(res.vao);
|
|||
|
|
|
|||
|
|
res.vbo = GL15.glGenBuffers();
|
|||
|
|
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, res.vbo);
|
|||
|
|
|
|||
|
|
float[] verts = mesh.getVertices();
|
|||
|
|
float[] uvs = mesh.getUVs();
|
|||
|
|
int vertexCount = mesh.getVertexCount();
|
|||
|
|
if (verts == null || verts.length == 0) throw new IllegalStateException("Mesh has no vertices: " + mesh.getName());
|
|||
|
|
|
|||
|
|
FloatBuffer inter = MemoryUtil.memAllocFloat(vertexCount * 4);
|
|||
|
|
for (int i = 0; i < vertexCount; i++) {
|
|||
|
|
inter.put(verts[i*2]);
|
|||
|
|
inter.put(verts[i*2+1]);
|
|||
|
|
inter.put(uvs[i*2]);
|
|||
|
|
inter.put(uvs[i*2+1]);
|
|||
|
|
}
|
|||
|
|
inter.flip();
|
|||
|
|
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, inter, GL15.GL_STATIC_DRAW);
|
|||
|
|
MemoryUtil.memFree(inter);
|
|||
|
|
|
|||
|
|
// 设置 attribute（位置 / uv），layout 已在 shader 中固定
|
|||
|
|
int stride = 4 * Float.BYTES;
|
|||
|
|
GL20.glEnableVertexAttribArray(0);
|
|||
|
|
GL20.glVertexAttribPointer(0, 2, GL11.GL_FLOAT, false, stride, 0);
|
|||
|
|
GL20.glEnableVertexAttribArray(1);
|
|||
|
|
GL20.glVertexAttribPointer(1, 2, GL11.GL_FLOAT, false, stride, 2 * Float.BYTES);
|
|||
|
|
|
|||
|
|
int[] indices = mesh.getIndices();
|
|||
|
|
if (indices != null && indices.length > 0) {
|
|||
|
|
res.ebo = GL15.glGenBuffers();
|
|||
|
|
GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, res.ebo);
|
|||
|
|
IntBuffer ib = MemoryUtil.memAllocInt(indices.length);
|
|||
|
|
ib.put(indices).flip();
|
|||
|
|
GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, ib, GL15.GL_STATIC_DRAW);
|
|||
|
|
MemoryUtil.memFree(ib);
|
|||
|
|
res.vertexCount = indices.length; // drawElements 使用 count
|
|||
|
|
} else {
|
|||
|
|
res.vertexCount = vertexCount;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 不解绑 ELEMENT_ARRAY_BUFFER（它属于 VAO），解绑 ARRAY_BUFFER
|
|||
|
|
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
|
|||
|
|
GL30.glBindVertexArray(0);
|
|||
|
|
|
|||
|
|
res.initialized = true;
|
|||
|
|
checkGLError("uploadMeshData");
|
|||
|
|
System.out.println("Uploaded mesh: " + mesh.getName() + " (v=" + vertexCount + ")");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ================== uniform 设置辅助（内部使用，确保 program 已绑定） ==================
|
|||
|
|
private static void setUniformIntInternal(ShaderProgram sp, String name, int value) {
|
|||
|
|
int loc = sp.getUniformLocation(name);
|
|||
|
|
if (loc != -1) GL20.glUniform1i(loc, value);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void setUniformFloatInternal(ShaderProgram sp, String name, float value) {
|
|||
|
|
int loc = sp.getUniformLocation(name);
|
|||
|
|
if (loc != -1) GL20.glUniform1f(loc, value);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void setUniformVec4Internal(ShaderProgram sp, String name, Vector4f vec) {
|
|||
|
|
int loc = sp.getUniformLocation(name);
|
|||
|
|
if (loc != -1) GL20.glUniform4f(loc, vec.x, vec.y, vec.z, vec.w);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void setUniformMatrix3(ShaderProgram sp, String name, Matrix3f m) {
|
|||
|
|
int loc = sp.getUniformLocation(name);
|
|||
|
|
if (loc == -1) return;
|
|||
|
|
FloatBuffer fb = MemoryUtil.memAllocFloat(9);
|
|||
|
|
try {
|
|||
|
|
m.get(fb);
|
|||
|
|
GL20.glUniformMatrix3fv(loc, false, fb);
|
|||
|
|
} finally {
|
|||
|
|
MemoryUtil.memFree(fb);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
// 外部可用的统一设置（会自动切换到默认程序）
|
|||
|
|
private static void setUniformInt(String name, int value) {
|
|||
|
|
defaultProgram.use();
|
|||
|
|
setUniformIntInternal(defaultProgram, name, value);
|
|||
|
|
defaultProgram.stop();
|
|||
|
|
}
|
|||
|
|
private static void setUniformFloat(String name, float value) {
|
|||
|
|
defaultProgram.use();
|
|||
|
|
setUniformFloatInternal(defaultProgram, name, value);
|
|||
|
|
defaultProgram.stop();
|
|||
|
|
}
|
|||
|
|
private static void setUniformVec4(String name, Vector4f v) {
|
|||
|
|
defaultProgram.use();
|
|||
|
|
setUniformVec4Internal(defaultProgram, name, v);
|
|||
|
|
defaultProgram.stop();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ================== 部件属性 ==================
|
|||
|
|
private static void setPartUniforms(ShaderProgram sp, ModelPart part) {
|
|||
|
|
setUniformFloatInternal(sp, "uOpacity", part.getOpacity());
|
|||
|
|
int blend = 0;
|
|||
|
|
switch (part.getBlendMode()) {
|
|||
|
|
case ADDITIVE: blend = 1; break;
|
|||
|
|
case MULTIPLY: blend = 2; break;
|
|||
|
|
case SCREEN: blend = 3; break;
|
|||
|
|
case NORMAL: default: blend = 0;
|
|||
|
|
}
|
|||
|
|
setUniformIntInternal(sp, "uBlendMode", blend);
|
|||
|
|
// 这里保留为白色，若需要部件 tint 请替换为 part 的 color 属性
|
|||
|
|
setUniformVec4Internal(sp, "uColor", new Vector4f(1,1,1,1));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ================== 工具 ==================
|
|||
|
|
private static Matrix3f buildOrthoProjection(int width, int height) {
|
|||
|
|
Matrix3f m = new Matrix3f();
|
|||
|
|
m.set(
|
|||
|
|
2.0f / width, 0.0f, -1.0f,
|
|||
|
|
0.0f, -2.0f / height, 1.0f,
|
|||
|
|
0.0f, 0.0f, 1.0f
|
|||
|
|
);
|
|||
|
|
return m;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public static void setViewport(int width, int height) {
|
|||
|
|
viewportWidth = Math.max(1, width);
|
|||
|
|
viewportHeight = Math.max(1, height);
|
|||
|
|
GL11.glViewport(0, 0, viewportWidth, viewportHeight);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public static void setClearColor(float r, float g, float b, float a) {
|
|||
|
|
GL11.glClearColor(r,g,b,a);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void checkGLError(String op) {
|
|||
|
|
int e = GL11.glGetError();
|
|||
|
|
if (e != GL11.GL_NO_ERROR) {
|
|||
|
|
System.err.println("OpenGL error during " + op + ": " + getGLErrorString(e));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static String getGLErrorString(int err) {
|
|||
|
|
switch (err) {
|
|||
|
|
case GL11.GL_INVALID_ENUM: return "GL_INVALID_ENUM";
|
|||
|
|
case GL11.GL_INVALID_VALUE: return "GL_INVALID_VALUE";
|
|||
|
|
case GL11.GL_INVALID_OPERATION: return "GL_INVALID_OPERATION";
|
|||
|
|
case GL11.GL_OUT_OF_MEMORY: return "GL_OUT_OF_MEMORY";
|
|||
|
|
default: return "Unknown(0x" + Integer.toHexString(err) + ")";
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ================== 辅助：外部获取状态 ==================
|
|||
|
|
public static boolean isInitialized() { return initialized; }
|
|||
|
|
public static int getLoadedMeshCount() { return meshResources.size(); }
|
|||
|
|
|
|||
|
|
}
|