我正在尝试使用一个数组来创建5个顶点数组对象(VAO)并用于init()函数。
然而,glGenVertexArrays(5, &vao) 报错了,我不知道为什么会这样。
我猜我没有完全理解该函数的行为。
有人可以告诉我这是怎么回事吗?
以下是我的原始代码:
然而,glGenVertexArrays(5, &vao) 报错了,我不知道为什么会这样。
我猜我没有完全理解该函数的行为。
有人可以告诉我这是怎么回事吗?
以下是我的原始代码:
void
init(){
// Subdivide a tetrahedron into a sphere
Index = 0; tetrahedron( 1, 0, NumTimesToSubdivide-4 );
Index = 0; tetrahedron( 0, 1, NumTimesToSubdivide-3 );
Index = 0; tetrahedron( 0, 2, NumTimesToSubdivide-2 );
Index = 0; tetrahedron( 0, 3, NumTimesToSubdivide-1);
Index = 0; tetrahedron( 0, 4, NumTimesToSubdivide );
// Create a vertex array object
**glGenVertexArrays( 5, &vao ); // Error occurs on this line**
for ( int i=0; i<5; i++ )
{
glBindVertexArray( vao[i] );
GLuint buffer;
glGenBuffers( 1, &buffer );
glBindBuffer( GL_ARRAY_BUFFER, buffer );
glBufferData( GL_ARRAY_BUFFER, sizeof(points[i]) + sizeof(normals[i]),NULL, GL_STATIC_DRAW );
glBufferSubData( GL_ARRAY_BUFFER, 0, sizeof(points[i]), &(points[i]) );
glBufferSubData( GL_ARRAY_BUFFER, sizeof(points[i]),sizeof(normals[i]), &(normals[i]) );
}
// Load shaders and use the resulting shader program
GLuint program = InitShader( "vshader.glsl", "fshader.glsl" );
glUseProgram( program );
// set up vertex arrays
GLuint vPosition = glGetAttribLocation( program, "vPosition" );
glEnableVertexAttribArray( vPosition );
glVertexAttribPointer( vPosition, 4, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0) );
GLuint vNormal = glGetAttribLocation( program, "vNormal" );
glEnableVertexAttribArray( vNormal );
glVertexAttribPointer( vNormal, 3, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(sizeof(points)) );
AmbientProduct = glGetUniformLocation(program, "AmbientProduct");
DiffuseProduct = glGetUniformLocation(program, "DiffuseProduct");
SpecularProduct = glGetUniformLocation(program, "SpecularProduct");
LightPosition = glGetUniformLocation(program, "LightPosition");
Shininess = glGetUniformLocation(program, "Shininess");
Transformation = glGetUniformLocation( program, "Transformation" );
View = glGetUniformLocation( program, "View" );
Projection = glGetUniformLocation( program, "Projection" );
glEnable( GL_DEPTH_TEST );
glClearColor(0.0, 0.0, 0.0, 0.0 ); /* Black background */
}
以下是错误信息:
error C2664: 'void (GLsizei,GLuint *)' : cannot convert parameter 2 from 'GLuint (*)[5]' to 'GLuint *'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
error C2664: 'void (GLsizei,GLuint *)' : cannot convert parameter 1 from 'GLuint (*)[5]' to 'GLsizei'
1> There is no context in which this conversion is possible