void Cube::initWithScale(float scale)
{
float *vertex, *normal, *texCoord,*tangent;
_numberOfIndice = esGenCube(scale, &vertex, &normal, &texCoord,&tangent ,&_numberOfVertex);
//
glGenBuffers(1, &_vertexVBO);
glBindBuffer(GL_ARRAY_BUFFER, _vertexVBO);
glBufferData(GL_ARRAY_BUFFER, 3 * sizeof(float)*_numberOfVertex,vertex,GL_STATIC_DRAW);
//
glGenBuffers(1, &_normalVBO);
glBindBuffer(GL_ARRAY_BUFFER, _normalVBO);
glBufferData(GL_ARRAY_BUFFER, 3 * sizeof(float)*_numberOfVertex, normal,GL_STATIC_DRAW);
//
glGenBuffers(1, &_texCoordVBO);
glBindBuffer(GL_ARRAY_BUFFER, _texCoordVBO);
glBufferData(GL_ARRAY_BUFFER, 3 * sizeof(float)*_numberOfVertex, texCoord, GL_STATIC_DRAW);
//
glGenBuffers(1, &_tangentVBO);
glBindBuffer(GL_ARRAY_BUFFER, _tangentVBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(float) * 3 * _numberOfVertex, tangent, GL_STATIC_DRAW);
//
//free memory
delete vertex;
delete normal;
delete texCoord;
delete tangent;
vertex = NULL;
normal = NULL;
texCoord = NULL;
}
///
// Initialize the shader and program object
//
int Init ( ESContext *esContext )
{
esContext->userData = malloc(sizeof(UserData));
UserData *userData = esContext->userData;
GLbyte vShaderStr[] =
"uniform mat4 u_mvpMatrix; \n"
"attribute vec4 a_position; \n"
"void main() \n"
"{ \n"
" gl_Position = u_mvpMatrix * a_position; \n"
"} \n";
GLbyte fShaderStr[] =
"precision mediump float; \n"
"void main() \n"
"{ \n"
" gl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 ); \n"
"} \n";
// Load the shaders and get a linked program object
userData->programObject = esLoadProgram ( vShaderStr, fShaderStr );
// Get the attribute locations
userData->positionLoc = glGetAttribLocation ( userData->programObject, "a_position" );
// Get the uniform locations
userData->mvpLoc = glGetUniformLocation( userData->programObject, "u_mvpMatrix" );
// Generate the vertex data
userData->numIndices = esGenCube( 1.0, &userData->vertices,
NULL, NULL, &userData->indices );
// Starting rotation angle for the cube
userData->angle = 45.0f;
glClearColor ( 0.0f, 0.0f, 0.0f, 1.0f );
return GL_TRUE;
}
void Mesh::makeMeACube(float size) {
nbrOfIndices = esGenCube(size, positions, normals, texCoords, triangles);
}