public void TickRender()
{
if (Ready)
{
GL.Enable(EnableCap.Blend);
GL.Disable(EnableCap.DepthTest);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
GL.BindVertexArray(VAO);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo);
GUI.GetFontShader.Use();
font.AtlasTexture.Use();
GUI.GetFontShader.Setbool("HaveTexture", true);
GUI.GetFontShader.SetColor("MainColor", colour);
GUI.GetFontShader.SetMatrix4("projection", Matrix4.CreateOrthographicOffCenter(Window.Instance.ClientRectangle.Left, Window.Instance.ClientRectangle.Right, Window.Instance.ClientRectangle.Bottom, Window.Instance.ClientRectangle.Top, 0f, 5.0f));
GL.DrawArrays(PrimitiveType.Triangles, 0, textMeshData.getVertexLength());
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
GL.BindVertexArray(0);
GL.Enable(EnableCap.DepthTest);
GL.Disable(EnableCap.Blend);
}
}
public void UpdateText(string text)
{
GenRectangle();
textString = text;
Ready = false;
textMeshData = null;
textMeshData = createTextMesh();
GL.BindVertexArray(VAO);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo);
GL.BufferData(BufferTarget.ArrayBuffer, textMeshData.getVertexLength() * Vector2.SizeInBytes, textMeshData.getVertexPositions(), BufferUsageHint.DynamicDraw);
GL.VertexAttribPointer(0, 2, VertexAttribPointerType.Float, false, 0, 0);
GL.EnableVertexAttribArray(0);
GL.BindBuffer(BufferTarget.ArrayBuffer, ubo);
GL.BufferData(BufferTarget.ArrayBuffer, textMeshData.getTextureCoordsLength() * Vector2.SizeInBytes, textMeshData.getTextureCoords(), BufferUsageHint.DynamicDraw);
GL.VertexAttribPointer(1, 2, VertexAttribPointerType.Float, false, 0, 0);
GL.EnableVertexAttribArray(1);
Ready = true;
}