我无法得到一个简单的索引数组呈现正确

Question

我将此sample（site）移植到jogl但我注意到图像中有些东西不完美，地面上的某些人造物和形状不完全平整，您可以看（不关于颜色护理，是不同的），也地板犯规好看：

因此，我试图呈现只有首先发言（如果你想尝试，很容易的，从100 - > 0开始SQRT_BUILDING_COUNT）在那里我已经有了第一个问题，它应该是基于两个三角形的正方形，但我只看到其中的一个。

My vertex structure：

public float[] position = new float[3]; 
public byte[] color = new byte[4]; 
public float[] attrib0 = new float[4]; 
public float[] attrib1 = new float[4]; 
public float[] attrib2 = new float[4]; 
public float[] attrib3 = new float[4]; 
public float[] attrib4 = new float[4]; 
public float[] attrib5 = new float[4]; 
public float[] attrib6 = new float[4]; 

attrib0-6未使用的那一刻

My VS inputs：

// Input attributes 
layout(location=0) in vec4 iPos; 
layout(location=1) in vec4 iColor; 
layout(location=2) in PerMeshUniforms* bindlessPerMeshUniformsPtr; 
layout(location=3) in vec4 iAttrib3; 
layout(location=4) in vec4 iAttrib4; 
layout(location=5) in vec4 iAttrib5; 
layout(location=6) in vec4 iAttrib6; 
layout(location=7) in vec4 iAttrib7; 

我声明IPOS为VEC3，所以我想它将在VS中填充为vec4（iPos，1）

I transfer data to gpu：

gl4.glNamedBufferData(vertexBuffer[0], Vertex.size() * vertices.size(), 
      GLBuffers.newDirectFloatBuffer(verticesArray), GL4.GL_STATIC_DRAW); 
    gl4.glNamedBufferData(indexBuffer[0], GLBuffers.SIZEOF_SHORT * indices.size(), 
      GLBuffers.newDirectShortBuffer(indicesArray), GL4.GL_STATIC_DRAW); 

然后我才呈现I call：

 gl4.glEnableVertexArrayAttrib(0, 0); 
     gl4.glEnableVertexArrayAttrib(0, 1); 

然后渲染，original code is：

// Set up attribute 0 for the position (3 floats) 
    glVertexArrayVertexAttribOffsetEXT(0, m_vertexBuffer, 0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), Vertex::PositionOffset); 

    // Set up attribute 1 for the color (4 unsigned bytes) 
    glVertexArrayVertexAttribOffsetEXT(0, m_vertexBuffer, 1, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(Vertex), Vertex::ColorOffset); 

I substituted it with：

 // Set up attribute 0 for the position (3 floats) 
     gl4.glVertexArrayVertexBuffer(0, 0, vertexBuffer[0], Vertex.positionOffset, 
       Vertex.size()); 
     gl4.glVertexArrayAttribFormat(0, 0, 3, GL4.GL_FLOAT, false, Vertex.size()); 

     // Set up attribute 1 for the color (4 unsigned bytes) 
     gl4.glVertexArrayVertexBuffer(0, 1, vertexBuffer[0], Vertex.colorOffset, 
       Vertex.size()); 
     gl4.glVertexArrayAttribFormat(0, 1, 4, GL4.GL_UNSIGNED_BYTE, true, Vertex.size()); 

And then I finish the render：

 // Reset state 
     gl4.glDisableVertexArrayAttrib(0, 0); 
     gl4.glDisableVertexArrayAttrib(0, 1); 

我承认我从来没有使用过DSA，我总是用GL3与正常VBO，VAO和IBO，绑定和解除绑定..

剔除处于关闭状态。

然后出现什么问题？

Answer 1

解决了，问题是我没有执行正确DSA

glEnableVertexAttribArray(vao, 0); 
glEnableVertexAttribArray(vao, 1); 

// Setup the formats 
glVertexArrayAttribFormat(vao, 0, 3, GL_FLOAT, GL_FALSE, 0); 
glVertexArrayAttribFormat(vao, 1, 2, GL_FLOAT, GL_FALSE, 0); 

// Setup the buffer sources 
glVertexArrayVertexBuffer(vao, 0, buffers[0], 0, 0); // Note the 2nd argument here is a 'binding index', not the attribute index 
glVertexArrayVertexBuffer(vao, 1, buffers[1], 0, 0); 

// Link them up 
glVertexArrayAttribBinding(vao, 0, 0); // Associate attrib 0 (first 0) with binding 0 (second 0). 
glVertexArrayAttribBinding(vao, 1, 1); 

加glVertexArrayElementBuffer如果你有索引的渲染