Update scene.frag.glsl

scene.frag.glsl

@@ -17,6 +17,13 @@ struct Material {
   Side  _pad[2];
 };
 
+// NOTE
+// When material data becomes larger, and the ratio of draws/materials is higher
+// it is recommended to not use INDEXING for material data, but use a regular
+// ubo as usual.
+// Likewise SSBO indexing are even less recommended for this purpose, as SSBOs 
+// are slower to access.
+
 layout(std140,binding=UBO_MATERIAL) uniform materialBuffer {
 #if USE_INDEXING
   Material  materials[256];
@@ -100,4 +107,4 @@ void main()
   OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------------------------------------------------------------*/
+-----------------------------------------------------------------------*/