public void UploadInGl()
{
var vertices = new Vertex[]
{
new Vertex(new Vector3(0, 0 + Size.Y, 0f), new Vector3(0, 0, 1), new Vector2(_uvStart.X, _uvStart.Y)),
new Vertex(new Vector3(0, 0, 0f), new Vector3(0, 0, 1), new Vector2(_uvStart.X, _uvEnd.Y)),
new Vertex(new Vector3(0 + Size.X, 0 + Size.Y, 0f), new Vector3(0, 0, 1), new Vector2(_uvEnd.X, _uvStart.Y)),
new Vertex(new Vector3(0 + Size.X, 0 + Size.Y, 0f), new Vector3(0, 0, 1), new Vector2(_uvEnd.X, _uvStart.Y)),
new Vertex(new Vector3(0, 0, 0f), new Vector3(0, 0, 1), new Vector2(_uvStart.X, _uvEnd.Y)),
new Vertex(new Vector3(0 + Size.X, 0, 0f), new Vector3(0, 0, 1), new Vector2(_uvEnd.X, _uvEnd.Y)),
};
if (_vbo == null)
{
_vbo = new Vbo();
}
_vbo.Bind();
_trianglesCount = vertices.Length;
_vbo.SetData(vertices);
_vbo.Unbind();
if (_vao == null)
{
_vao = new Vao <Vertex>();
}
_vao.BindVbo(_vbo, Shader, new[] {
new VertexAttribute("_pos", 3, VertexAttribPointerType.Float, Vector2.SizeInBytes + Vector3.SizeInBytes + Vector3.SizeInBytes + Vector4.SizeInBytes, 0),
new VertexAttribute("_uv", 2, VertexAttribPointerType.Float, Vector2.SizeInBytes + Vector3.SizeInBytes + Vector3.SizeInBytes + Vector4.SizeInBytes, Vector3.SizeInBytes * 2),
});
}
public void Dispose()
{
Loaded = false;
ClearVertices();
VerticesCount = 0;
_vao?.Dispose();
_vao = null;
_vbo?.Dispose();
_vbo = null;
}
public void Dispose()
{
Loaded = false;
Objects?.Clear();
Objects = null;
VerticesCount = 0;
_vao?.Dispose();
_vao = null;
_vbo?.Dispose();
_vbo = null;
}
public void BindVbo(Vbo vbo, Shader shader, VertexAttribute[] attributes)
{
Bind();
vbo.Bind();
foreach (var attrib in attributes)
{
attrib.Set(shader);
}
vbo.Unbind();
Unbind();
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
}
private void UpdateString()
{
var chars = new List <Vertex>(3 * _str.Length);
var split = _str.Split(new[] { '\n' }, StringSplitOptions.None);
var prevY = 0f;
for (int i = 0; i < split.Length; i++)
{
var prevX = 0f;
var leftPadding = TextAlignment == Alignment.LEFT ? 0 : (TextAlignment == Alignment.RIGHT ? -Font.GetStringWidth(split[i]) : -Font.GetStringWidth(split[i]) / 2);
prevY -= Font.CharHeight;
foreach (var c in split[i])
{
var u = Font.GetUFor(c);
chars.AddRange(new Vertex[]
{
new Vertex(new Vector3(prevX + leftPadding, prevY + Font.CharHeight, 0f), new Vector3(0, 0, 1), new Vector2(u, 0)),
new Vertex(new Vector3(prevX + leftPadding, prevY, 0f), new Vector3(0, 0, 1), new Vector2(u, Font.CharTextureHeight)),
new Vertex(new Vector3(prevX + leftPadding + Font.CharWidth, prevY + Font.CharHeight, 0f), new Vector3(0, 0, 1), new Vector2(u + Font.CharTextureLength, 0)),
new Vertex(new Vector3(prevX + leftPadding + Font.CharWidth, prevY + Font.CharHeight, 0f), new Vector3(0, 0, 1), new Vector2(u + Font.CharTextureLength, 0)),
new Vertex(new Vector3(prevX + leftPadding, prevY, 0f), new Vector3(0, 0, 1), new Vector2(u, Font.CharTextureHeight)),
new Vertex(new Vector3(prevX + leftPadding + Font.CharWidth, prevY, 0f), new Vector3(0, 0, 1), new Vector2(u + Font.CharTextureLength, Font.CharTextureHeight)),
});
prevX += Font.CharWidth;
}
}
if (_vbo == null)
{
_vbo = new Vbo();
}
_vbo.Bind();
var charsArray = chars.ToArray();
_trianglesCount = charsArray.Length;
_vbo.SetData(charsArray);
_vbo.Unbind();
if (_vao == null)
{
_vao = new Vao <Vertex>();
}
_vao.BindVbo(_vbo, Shader, new[] {
new VertexAttribute("_pos", 3, VertexAttribPointerType.Float, Vector2.SizeInBytes + Vector3.SizeInBytes + Vector3.SizeInBytes + Vector4.SizeInBytes, 0),
new VertexAttribute("_uv", 2, VertexAttribPointerType.Float, Vector2.SizeInBytes + Vector3.SizeInBytes + Vector3.SizeInBytes + Vector4.SizeInBytes, Vector3.SizeInBytes * 2),
});
}
public void LoadInGl()
{
if (Loaded)
{
return;
}
VerticesCount = Objects.Count;
if (Objects.Count == 0)
{
return;
}
var objs = Objects.ToArray();
_vbo = new Vbo();
_vbo.Bind();
_vbo.SetData(objs);
_vbo.Unbind();
Loaded = true;
Invalidated = false;
}
public void LoadInGl()
{
if (Loaded)
{
return;
}
VerticesCount = Vertices.Count;
if (Vertices.Count == 0)
{
return;
}
var vertices = Vertices.ToArray();
_vbo = new Vbo();
_vbo.Bind();
_vbo.SetData(vertices);
_vbo.Unbind();
ClearVertices();
Loaded = true;
}