hi!
i’ve many many questions again! :
-
How to install both implementations and switch easely from the one to the other? (for testing purposes)
-
Despite of having a FPS rate of about 60-70, the animation is not smooth (OGL&DX), is it normal?
-
i’ve seen suprising things here, with both implementations: PointLights act differently! It’s hard to explain clearly the difference, maybe this sheme will help, where 0 is the point light source, and X the “camera” looking at the top:
OGL (1.3.1 beta):
0
.
.
.
X
DX (1.3.1):
0
.
.
.
X
In the OGL impl, a main light ray is directed // to the direction you’re looking at while in DX impl it’s directed on you. (EDIT: for specular reflection!)Strange huh?!
Are there many differences like this? -
also, there is drastical changes with framerates, i’ve nearly the double with DX! I’ve heard ATI cards support better DX than OGL, that could be the reason.
Is it possible for an app to test both and chose the best for running? -
How to see if hardware is used, and which grapic card is used?