Opengl program not recognizing second vertex input - opengl

Question

I was reading about shaders and colors, how can they be defined as a vertex input. So i folowed the tutorial and came with a mess because the program was just reading forward and not going into next rows:
GLfloat vertecies[] = {
//vertices colors
0.5f, -0.5f, 0.0f, 1.0f, 0.0f, 0.0f,// Bottom Right
-0.5f, -0.5f, 0.0f, 0.0f, 1.0f, 0.0f,// Bottom Left
0.0f, 0.5f, 0.0f, 0.0f, 0.0f, 1.0f,// Top
};
And here's the following code, that should be setting the second vertex input as colors:
glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertecies), vertecies, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(index), index, GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (GLvoid*)0);
glEnableVertexAttribArray(0);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), (GLvoid*)(3 * sizeof(GLfloat)));
glEnableVertexAttribArray(1);
glBindVertexArray(0);
And here's my vertex shader code:
const char* VertexShaderCode =
"#version 330 core\r\n"
""
"layout(location=0) in vec3 position;"
"layout(location=1) in vec3 color;"
""
"out vec3 theColor;"
""
"void main()"
"{"
" gl_Position = vec4(position, 1.0);"
" theColor = color;"
"}";
And here's the fragment shader code:
const char* FragmentShaderCode =
"#version 330 core\r\n"
""
"in vec3 theColor;"
""
"out vec4 color;"
""
"void main()"
"{"
" color = theColor;"
"}";
Tell me, if I'm doing anything wrong.

Answer 1

Your stride multiplier is wrong for attribute index 0. It should be 6 because one vertex contains 3 position elements and 3 color elements. Replace
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (GLvoid*)0);
with
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), (GLvoid*)0);