为什么这个属性数据没有正确加载到顶点着色器？
Why doesn't this attribute data get loaded to the vertex shader correctly?
我想向我的顶点数组对象添加一个整数数组，以定义应该将哪个图像用于该特定顶点，但不知何故，数据在途中被损坏或未正确加载。
我已经尝试加载预设数组并使用 gl_VertexID 选择正确的索引，这很有效，但我更希望将所有数据都放在顶点数组中，而不必加载统一的每帧整数数组。
顶点着色器
#version 330 core
layout (location = 0) in vec4 position;
layout (location = 1) in vec2 textureCoordinate;
//layout (location = 2) in vec3 normals;
layout (location = 3) in int textureIndex;
//layout (location = 4) in mat4 modelMatrix;
// ---------------Temporary--------------
uniform mat4 view;
uniform mat4 model;
// ---------------Temporary end----------
flat out int textureIndexOut;
out DATA {
vec2 tc;
} vs_out;
void main() {
mat4 mvp = view * model;
gl_Position = mvp * position;
vs_out.tc = textureCoordinate;
textureIndexOut = textureIndex;
}
片段着色器
#version 330 core
layout (location = 0) out vec4 color;
flat in int textureIndexOut;
in DATA {
vec2 tc;
} fs_in;
uniform sampler2D textureSamplers[32];
void main() {
color = texture(textureSamplers[1], fs_in.tc);
}
创建顶点数组`
public static VertexArray createVAO(float[] vertices, int[] indices, float[] textureCoordinates,
float[] normals, int[]textureIndices) {
int count = indices.length;
int indexBufferObject = createIndexBuffer(indices);
int vertexArrayObject = laodVertexArrayObject();
storeDataInAttributeList(ShaderProgram.VERTEX_ATTRIB, vertices, 3);
storeDataInAttributeList(ShaderProgram.TEXTURECOORDINATE_ATTRIB, textureCoordinates, 2);
storeDataInAttributeList(ShaderProgram.TEXTURE_INDEX_ATTRIB, textureIndices, 1);
return new VertexArray(count, vertexArrayObject, indexBufferObject, indices, vertices, normals, textureCoordinates);
}
创建 VAO
private static int laodVertexArrayObject() {
int vertexArrayObjectID = glGenVertexArrays();
vaos.add(vertexArrayObjectID); //Adding the VAO to the list of all VAOs
glBindVertexArray(vertexArrayObjectID);
return vertexArrayObjectID;
}
创建 VBO
private static int createIndexBuffer(int[] indices) {
int indexBufferObjectID = glGenBuffers();
ibos.add(indexBufferObjectID); //Adding the IBO to the list of all IBOs
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBufferObjectID);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, BufferUtils.createIntBuffer(indices), GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
return indexBufferObjectID;
}
storeDataInAttributeList 函数
private static void storeDataInAttributeList(int attributeNumber, float[] data, int coordinateSize) {
int vertexBufferObjectID = glGenBuffers();
vbos.add(vertexBufferObjectID); //Adding the VBO to the list of all VBOs
glBindBuffer(GL_ARRAY_BUFFER, vertexBufferObjectID);
glBufferData(GL_ARRAY_BUFFER, BufferUtils.createFloatBuffer(data), GL_STATIC_DRAW);
glVertexAttribPointer(attributeNumber, coordinateSize, GL_FLOAT, false, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
private static void storeDataInAttributeList(int attributeNumber, int[] data, int coordinateSize) {
int vertexBufferObjectID = glGenBuffers();
vbos.add(vertexBufferObjectID); //Adding the VBO to the list of all VBOs
glBindBuffer(GL_ARRAY_BUFFER, vertexBufferObjectID);
glBufferData(GL_ARRAY_BUFFER, BufferUtils.createIntBuffer(data), GL_STATIC_DRAW);
glVertexAttribPointer(attributeNumber, coordinateSize, GL_INT, false, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
渲染批次
public void render() {
// Final arrays
float[] vertices = null;
float[] textureCoordinates = null;
float[] normals = null;
int[] indices = null;
int[] textureIndices = null;
// The temporary array list of data
ArrayList<Float> rawVertices = new ArrayList<Float>();
ArrayList<Float> rawTextureCoordinates = new ArrayList<Float>();
ArrayList<Float> rawNormals = new ArrayList<Float>();
ArrayList<Integer> rawIndices = new ArrayList<Integer>();
ArrayList<Integer> rawTextureIndices = new ArrayList<Integer>();
// Adding all the data of all the vaos into the temporary array lists
for(int j = 0; j < rawVAOs.size(); j++) {
for(int i = 0; i < rawVAOs.get(j).getVertices().length; i++) {
rawVertices.add(rawVAOs.get(j).getVertices()[i]);
}
for(int i = 0; i < rawVAOs.get(j).getIndices().length; i++) {
if(j == 0) {
rawIndices.add(rawVAOs.get(j).getIndices()[i]);
} else {
rawIndices.add(j*rawVAOs.get(j-1).getIndices().length + rawVAOs.get(j).getIndices()[i]);
}
}
for(int i = 0; i < rawVAOs.get(j).getNormals().length; i++) {
rawNormals.add(rawVAOs.get(j).getNormals()[i]);
}
for(int i = 0; i < rawVAOs.get(j).getTextureCoordinates().length; i++) {
rawTextureCoordinates.add(rawVAOs.get(j).getTextureCoordinates()[i]);
}
for(int i = 0; i < rawVAOs.get(j).getTextureIndices().length; i++) {
rawTextureIndices.add(rawVAOs.get(j).getTextureIndices()[i]);
}
}
// Adding all the data from the temporaray array lists into the final arrays
vertices = new float[rawVertices.size()];
for(int i = 0; i < rawVertices.size(); i++) {
vertices[i] = rawVertices.get(i);
}
indices = new int[rawIndices.size()];
for(int i = 0; i < rawIndices.size(); i++) {
indices[i] = rawIndices.get(i);
}
normals = new float[rawNormals.size()];
for(int i = 0; i < rawNormals.size(); i++) {
normals[i] = rawNormals.get(i);
}
textureCoordinates = new float[rawTextureCoordinates.size()];
for(int i = 0; i < rawTextureCoordinates.size(); i++) {
textureCoordinates[i] = rawTextureCoordinates.get(i);
}
textureIndices = new int[rawTextureIndices.size()];
for(int i = 0; i < rawTextureIndices.size(); i++) {
textureIndices[i] = rawTextureIndices.get(i);
}
// Creating the final vao and rendering it
this.finalVAO = Loader.createVAO(vertices, indices, textureCoordinates, normals, textureIndices);
Main.ShaderList.get(shaderIndex).prepare();
//load transformation matrices
for(int i = 0; i < texturePointers.size(); i++) {
glActiveTexture(GL_TEXTURE0+i);
Main.TextureBufferPointerList.get(texturePointers.get(i)).bind();
}
this.finalVAO.render();
Main.ShaderList.get(shaderIndex).finish();
}
如果我加载一个整数数组，其中包含第一个对象的所有顶点的 0 和第二个对象的所有顶点的 1，我希望第一个对象使用第一个纹理进行着色，并且使用第二个纹理着色的第二个对象。如果我为两个对象都添加 0 它会起作用，但是一旦我为任何对象添加 1，我就会收到这个巨大的错误消息：
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffee7914d6e, pid=5992, tid=0x00000000000006bc
#
# JRE version: Java(TM) SE Runtime Environment (8.0_211-b12) (build 1.8.0_211-b12)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.211-b12 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C [ig9icd64.dll+0x24d6e]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
--------------- T H R E A D ---------------
Current thread (0x000000001f03c800): JavaThread "renderer" [_thread_in_native, id=1724, stack(0x0000000020990000,0x0000000020a90000)]
siginfo: ExceptionCode=0xc0000005, reading address 0x0000000000000220
Registers:
RAX=0x0000000024f20080, RBX=0x00000000013ae000, RCX=0x00000000013ae000, RDX=0x000000002d611b10
RSP=0x0000000020a8ebb0, RBP=0x000000002d611a50, RSI=0x0000000000000000, RDI=0x0000000024f20080
R8 =0x0000000001221bc0, R9 =0x0000000000008000, R10=0x00000000ffffffff, R11=0x0000000000000000
R12=0x0000000000000000, R13=0x000000001ca43bd0, R14=0x0000000025042310, R15=0x0000000000000000
RIP=0x00007ffee7914d6e, EFLAGS=0x0000000000010246
Top of Stack: (sp=0x0000000020a8ebb0)
0x0000000020a8ebb0: 0000000000000001 0000000001387e50
0x0000000020a8ebc0: 00000000228e5360 00007ffee7a6171f
0x0000000020a8ebd0: fffffffffffffffe 000000001ca43bd0
0x0000000020a8ebe0: 000000000137ff20 00007ffee79145cf
0x0000000020a8ebf0: 0000000001394720 0000000000000000
0x0000000020a8ec00: 00000000013ae000 000000002d611a50
0x0000000020a8ec10: 000000000000000e 00007ffee7e35300
0x0000000020a8ec20: 0000000000000000 0000000025042310
0x0000000020a8ec30: 0000000024f20080 00007ffee790b731
0x0000000020a8ec40: 0000000001394720 00000000ffffffff
0x0000000020a8ec50: 0000000000000000 00000000ffffffff
0x0000000020a8ec60: 000000000137ff20 00007ffee7b0f4e2
0x0000000020a8ec70: 0000000000000000 00000000ffffffff
0x0000000020a8ec80: 0000000024f20080 000000000137ff20
0x0000000020a8ec90: fffffffffffffffe 0000000025042310
0x0000000020a8eca0: 0000000000000000 0000000025042310
Instructions: (pc=0x00007ffee7914d6e)
0x00007ffee7914d4e: 02 00 00 83 e6 01 0f 1f 40 00 0f 1f 84 00 00 00
0x00007ffee7914d5e: 00 00 4c 8b 9f 70 42 03 00 48 8d 95 c0 00 00 00
0x00007ffee7914d6e: 41 8b 8b 20 02 00 00 85 f6 0f 84 81 00 00 00 83
0x00007ffee7914d7e: f9 10 73 06 48 6b c1 38 eb 5b 44 8d 41 f0 41 8b
Register to memory mapping:
RAX=0x0000000024f20080 is an unknown value
RBX=0x00000000013ae000 is an unknown value
RCX=0x00000000013ae000 is an unknown value
RDX=0x000000002d611b10 is an unknown value
RSP=0x0000000020a8ebb0 is pointing into the stack for thread: 0x000000001f03c800
RBP=0x000000002d611a50 is an unknown value
RSI=0x0000000000000000 is an unknown value
RDI=0x0000000024f20080 is an unknown value
R8 =0x0000000001221bc0 is an unknown value
R9 =0x0000000000008000 is an unknown value
R10=0x00000000ffffffff is an unknown value
R11=0x0000000000000000 is an unknown value
R12=0x0000000000000000 is an unknown value
R13={method} {0x000000001ca43bd8} 'invokeV' '(J)V' in 'org/lwjgl/system/JNI'
R14=0x0000000025042310 is an unknown value
R15=0x0000000000000000 is an unknown value
Stack: [0x0000000020990000,0x0000000020a90000], sp=0x0000000020a8ebb0, free space=1018k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [ig9icd64.dll+0x24d6e]
C [ig9icd64.dll+0x245cf]
C
积分属性必须由 glVertexAttribIPointer 指定 - 关注 I:
glVertexAttribIPointer(attributeNumber, coordinateSize, GL_INT, 0, 0);
参见 OpenGL 4.6 API 核心配置文件规范； 10.2.1 当前通用属性
，第 349 页：
When values for a vertex shader attribute variable are sourced from an enabled generic vertex attribute array,
the array must be specified by a command compatible with the data type of the variable.
The values loaded into a shader attribute variable bound to generic attribute index are undefined if the array for index was not specified by:
VertexAttribFormat, for floating-point base type attributes;VertexAttribIFormat with type BYTE, SHORT, or INT for signed integer base type attributes; orVertexAttribIFormat with type UNSIGNED_BYTE, UNSIGNED_SHORT, or UNSIGNED_INT for unsigned integer base type attributes.
进一步注意Index buffer is stated in the Vertex Array Object。如果没有绑定顶点数组对象，则不能绑定索引缓冲区。 （在兼容性配置文件上下文中，有默认的顶点数组对象 0）。
因此必须在索引缓冲区之前创建和绑定顶点数组对象。
int vertexArrayObject = laodVertexArrayObject();
int count = indices.length;
int indexBufferObject = createIndexBuffer(indices);
当然，与 VAO 的关联不能被 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 打破：
private static int createIndexBuffer(int[] indices) {
int indexBufferObjectID = glGenBuffers();
ibos.add(indexBufferObjectID);
//Adding the IBO to the list of all IBOs
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBufferObjectID);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, BufferUtils.createIntBuffer(indices), GL_STATIC_DRAW);
// glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); <----- delete
return indexBufferObjectID;
}
我想向我的顶点数组对象添加一个整数数组，以定义应该将哪个图像用于该特定顶点，但不知何故，数据在途中被损坏或未正确加载。
我已经尝试加载预设数组并使用 gl_VertexID 选择正确的索引，这很有效，但我更希望将所有数据都放在顶点数组中，而不必加载统一的每帧整数数组。
顶点着色器
#version 330 core
layout (location = 0) in vec4 position;
layout (location = 1) in vec2 textureCoordinate;
//layout (location = 2) in vec3 normals;
layout (location = 3) in int textureIndex;
//layout (location = 4) in mat4 modelMatrix;
// ---------------Temporary--------------
uniform mat4 view;
uniform mat4 model;
// ---------------Temporary end----------
flat out int textureIndexOut;
out DATA {
vec2 tc;
} vs_out;
void main() {
mat4 mvp = view * model;
gl_Position = mvp * position;
vs_out.tc = textureCoordinate;
textureIndexOut = textureIndex;
}
片段着色器
#version 330 core
layout (location = 0) out vec4 color;
flat in int textureIndexOut;
in DATA {
vec2 tc;
} fs_in;
uniform sampler2D textureSamplers[32];
void main() {
color = texture(textureSamplers[1], fs_in.tc);
}
创建顶点数组`
public static VertexArray createVAO(float[] vertices, int[] indices, float[] textureCoordinates,
float[] normals, int[]textureIndices) {
int count = indices.length;
int indexBufferObject = createIndexBuffer(indices);
int vertexArrayObject = laodVertexArrayObject();
storeDataInAttributeList(ShaderProgram.VERTEX_ATTRIB, vertices, 3);
storeDataInAttributeList(ShaderProgram.TEXTURECOORDINATE_ATTRIB, textureCoordinates, 2);
storeDataInAttributeList(ShaderProgram.TEXTURE_INDEX_ATTRIB, textureIndices, 1);
return new VertexArray(count, vertexArrayObject, indexBufferObject, indices, vertices, normals, textureCoordinates);
}
创建 VAO
private static int laodVertexArrayObject() {
int vertexArrayObjectID = glGenVertexArrays();
vaos.add(vertexArrayObjectID); //Adding the VAO to the list of all VAOs
glBindVertexArray(vertexArrayObjectID);
return vertexArrayObjectID;
}
创建 VBO
private static int createIndexBuffer(int[] indices) {
int indexBufferObjectID = glGenBuffers();
ibos.add(indexBufferObjectID); //Adding the IBO to the list of all IBOs
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBufferObjectID);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, BufferUtils.createIntBuffer(indices), GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
return indexBufferObjectID;
}
storeDataInAttributeList 函数
private static void storeDataInAttributeList(int attributeNumber, float[] data, int coordinateSize) {
int vertexBufferObjectID = glGenBuffers();
vbos.add(vertexBufferObjectID); //Adding the VBO to the list of all VBOs
glBindBuffer(GL_ARRAY_BUFFER, vertexBufferObjectID);
glBufferData(GL_ARRAY_BUFFER, BufferUtils.createFloatBuffer(data), GL_STATIC_DRAW);
glVertexAttribPointer(attributeNumber, coordinateSize, GL_FLOAT, false, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
private static void storeDataInAttributeList(int attributeNumber, int[] data, int coordinateSize) {
int vertexBufferObjectID = glGenBuffers();
vbos.add(vertexBufferObjectID); //Adding the VBO to the list of all VBOs
glBindBuffer(GL_ARRAY_BUFFER, vertexBufferObjectID);
glBufferData(GL_ARRAY_BUFFER, BufferUtils.createIntBuffer(data), GL_STATIC_DRAW);
glVertexAttribPointer(attributeNumber, coordinateSize, GL_INT, false, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
渲染批次
public void render() {
// Final arrays
float[] vertices = null;
float[] textureCoordinates = null;
float[] normals = null;
int[] indices = null;
int[] textureIndices = null;
// The temporary array list of data
ArrayList<Float> rawVertices = new ArrayList<Float>();
ArrayList<Float> rawTextureCoordinates = new ArrayList<Float>();
ArrayList<Float> rawNormals = new ArrayList<Float>();
ArrayList<Integer> rawIndices = new ArrayList<Integer>();
ArrayList<Integer> rawTextureIndices = new ArrayList<Integer>();
// Adding all the data of all the vaos into the temporary array lists
for(int j = 0; j < rawVAOs.size(); j++) {
for(int i = 0; i < rawVAOs.get(j).getVertices().length; i++) {
rawVertices.add(rawVAOs.get(j).getVertices()[i]);
}
for(int i = 0; i < rawVAOs.get(j).getIndices().length; i++) {
if(j == 0) {
rawIndices.add(rawVAOs.get(j).getIndices()[i]);
} else {
rawIndices.add(j*rawVAOs.get(j-1).getIndices().length + rawVAOs.get(j).getIndices()[i]);
}
}
for(int i = 0; i < rawVAOs.get(j).getNormals().length; i++) {
rawNormals.add(rawVAOs.get(j).getNormals()[i]);
}
for(int i = 0; i < rawVAOs.get(j).getTextureCoordinates().length; i++) {
rawTextureCoordinates.add(rawVAOs.get(j).getTextureCoordinates()[i]);
}
for(int i = 0; i < rawVAOs.get(j).getTextureIndices().length; i++) {
rawTextureIndices.add(rawVAOs.get(j).getTextureIndices()[i]);
}
}
// Adding all the data from the temporaray array lists into the final arrays
vertices = new float[rawVertices.size()];
for(int i = 0; i < rawVertices.size(); i++) {
vertices[i] = rawVertices.get(i);
}
indices = new int[rawIndices.size()];
for(int i = 0; i < rawIndices.size(); i++) {
indices[i] = rawIndices.get(i);
}
normals = new float[rawNormals.size()];
for(int i = 0; i < rawNormals.size(); i++) {
normals[i] = rawNormals.get(i);
}
textureCoordinates = new float[rawTextureCoordinates.size()];
for(int i = 0; i < rawTextureCoordinates.size(); i++) {
textureCoordinates[i] = rawTextureCoordinates.get(i);
}
textureIndices = new int[rawTextureIndices.size()];
for(int i = 0; i < rawTextureIndices.size(); i++) {
textureIndices[i] = rawTextureIndices.get(i);
}
// Creating the final vao and rendering it
this.finalVAO = Loader.createVAO(vertices, indices, textureCoordinates, normals, textureIndices);
Main.ShaderList.get(shaderIndex).prepare();
//load transformation matrices
for(int i = 0; i < texturePointers.size(); i++) {
glActiveTexture(GL_TEXTURE0+i);
Main.TextureBufferPointerList.get(texturePointers.get(i)).bind();
}
this.finalVAO.render();
Main.ShaderList.get(shaderIndex).finish();
}
如果我加载一个整数数组，其中包含第一个对象的所有顶点的 0 和第二个对象的所有顶点的 1，我希望第一个对象使用第一个纹理进行着色，并且使用第二个纹理着色的第二个对象。如果我为两个对象都添加 0 它会起作用，但是一旦我为任何对象添加 1，我就会收到这个巨大的错误消息：
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffee7914d6e, pid=5992, tid=0x00000000000006bc
#
# JRE version: Java(TM) SE Runtime Environment (8.0_211-b12) (build 1.8.0_211-b12)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.211-b12 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C [ig9icd64.dll+0x24d6e]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
--------------- T H R E A D ---------------
Current thread (0x000000001f03c800): JavaThread "renderer" [_thread_in_native, id=1724, stack(0x0000000020990000,0x0000000020a90000)]
siginfo: ExceptionCode=0xc0000005, reading address 0x0000000000000220
Registers:
RAX=0x0000000024f20080, RBX=0x00000000013ae000, RCX=0x00000000013ae000, RDX=0x000000002d611b10
RSP=0x0000000020a8ebb0, RBP=0x000000002d611a50, RSI=0x0000000000000000, RDI=0x0000000024f20080
R8 =0x0000000001221bc0, R9 =0x0000000000008000, R10=0x00000000ffffffff, R11=0x0000000000000000
R12=0x0000000000000000, R13=0x000000001ca43bd0, R14=0x0000000025042310, R15=0x0000000000000000
RIP=0x00007ffee7914d6e, EFLAGS=0x0000000000010246
Top of Stack: (sp=0x0000000020a8ebb0)
0x0000000020a8ebb0: 0000000000000001 0000000001387e50
0x0000000020a8ebc0: 00000000228e5360 00007ffee7a6171f
0x0000000020a8ebd0: fffffffffffffffe 000000001ca43bd0
0x0000000020a8ebe0: 000000000137ff20 00007ffee79145cf
0x0000000020a8ebf0: 0000000001394720 0000000000000000
0x0000000020a8ec00: 00000000013ae000 000000002d611a50
0x0000000020a8ec10: 000000000000000e 00007ffee7e35300
0x0000000020a8ec20: 0000000000000000 0000000025042310
0x0000000020a8ec30: 0000000024f20080 00007ffee790b731
0x0000000020a8ec40: 0000000001394720 00000000ffffffff
0x0000000020a8ec50: 0000000000000000 00000000ffffffff
0x0000000020a8ec60: 000000000137ff20 00007ffee7b0f4e2
0x0000000020a8ec70: 0000000000000000 00000000ffffffff
0x0000000020a8ec80: 0000000024f20080 000000000137ff20
0x0000000020a8ec90: fffffffffffffffe 0000000025042310
0x0000000020a8eca0: 0000000000000000 0000000025042310
Instructions: (pc=0x00007ffee7914d6e)
0x00007ffee7914d4e: 02 00 00 83 e6 01 0f 1f 40 00 0f 1f 84 00 00 00
0x00007ffee7914d5e: 00 00 4c 8b 9f 70 42 03 00 48 8d 95 c0 00 00 00
0x00007ffee7914d6e: 41 8b 8b 20 02 00 00 85 f6 0f 84 81 00 00 00 83
0x00007ffee7914d7e: f9 10 73 06 48 6b c1 38 eb 5b 44 8d 41 f0 41 8b
Register to memory mapping:
RAX=0x0000000024f20080 is an unknown value
RBX=0x00000000013ae000 is an unknown value
RCX=0x00000000013ae000 is an unknown value
RDX=0x000000002d611b10 is an unknown value
RSP=0x0000000020a8ebb0 is pointing into the stack for thread: 0x000000001f03c800
RBP=0x000000002d611a50 is an unknown value
RSI=0x0000000000000000 is an unknown value
RDI=0x0000000024f20080 is an unknown value
R8 =0x0000000001221bc0 is an unknown value
R9 =0x0000000000008000 is an unknown value
R10=0x00000000ffffffff is an unknown value
R11=0x0000000000000000 is an unknown value
R12=0x0000000000000000 is an unknown value
R13={method} {0x000000001ca43bd8} 'invokeV' '(J)V' in 'org/lwjgl/system/JNI'
R14=0x0000000025042310 is an unknown value
R15=0x0000000000000000 is an unknown value
Stack: [0x0000000020990000,0x0000000020a90000], sp=0x0000000020a8ebb0, free space=1018k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [ig9icd64.dll+0x24d6e]
C [ig9icd64.dll+0x245cf]
C
积分属性必须由 glVertexAttribIPointer 指定 - 关注 I:
glVertexAttribIPointer(attributeNumber, coordinateSize, GL_INT, 0, 0);
参见 OpenGL 4.6 API 核心配置文件规范； 10.2.1 当前通用属性 ，第 349 页：
When values for a vertex shader attribute variable are sourced from an enabled generic vertex attribute array, the array must be specified by a command compatible with the data type of the variable. The values loaded into a shader attribute variable bound to generic attribute index are undefined if the array for index was not specified by:
VertexAttribFormat, for floating-point base type attributes;VertexAttribIFormatwith typeBYTE,SHORT, orINTfor signed integer base type attributes; orVertexAttribIFormatwith typeUNSIGNED_BYTE,UNSIGNED_SHORT, orUNSIGNED_INTfor unsigned integer base type attributes.
进一步注意Index buffer is stated in the Vertex Array Object。如果没有绑定顶点数组对象，则不能绑定索引缓冲区。 （在兼容性配置文件上下文中，有默认的顶点数组对象 0）。
因此必须在索引缓冲区之前创建和绑定顶点数组对象。
int vertexArrayObject = laodVertexArrayObject();
int count = indices.length;
int indexBufferObject = createIndexBuffer(indices);
当然，与 VAO 的关联不能被 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 打破：
private static int createIndexBuffer(int[] indices) {
int indexBufferObjectID = glGenBuffers();
ibos.add(indexBufferObjectID);
//Adding the IBO to the list of all IBOs
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBufferObjectID);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, BufferUtils.createIntBuffer(indices), GL_STATIC_DRAW);
// glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); <----- delete
return indexBufferObjectID;
}