public GlVertexArray(GlVertexBuffer <TVertex> vertices, GlIndexBuffer <TIndex> indices, Layout layout)
{
GlVbo = vertices;
GlIbo = indices;
Layout = layout;
Handle = GL.GenVertexArray();
Bind();
Vbo.Bind();
Ibo.Bind();
int stride = 0;
for (int i = 0; i < layout.Count; i++)
{
stride += Layout.GetSizeOf(layout[i].Type) * layout[i].Count;
}
int offset = 0;
for (int i = 0; i < layout.Count; i++)
{
int location = layout.Shader.GetAttributeLocation(layout[i].AttributeName);
GL.EnableVertexAttribArray(location);
GL.VertexAttribPointer(location, layout[i].Count, GetAttribType(layout[i].Type), false, stride, offset);
offset += Layout.GetSizeOf(layout[i].Type) * layout[i].Count;
}
}
public Renderer2D()
{
lastEntityOffset = 0;
vao = new Vao();
vbo = new Vbo(BufferUsage.DynamicDraw, 100000);
ibo = new Ibo(100000 * 6);
// Set layouts for vbo
vbo.PushLayout(new BufferLayout(2, VertexAttribType.Float, false)); // x, y
vbo.PushLayout(new BufferLayout(4, VertexAttribType.Float, false)); // r, g, b, a
vbo.PushLayout(new BufferLayout(2, VertexAttribType.Float, false)); // tx, ty
vbo.PushLayout(new BufferLayout(1, VertexAttribType.Float, false)); // texture id
}