#pragma profileoption directive

Unity Engine
1

From the manual:
“ARB_vertex_program with no instruction limit and ARB_fragment_program with 1024 instruction limit (512 texture + 512 arithmetic), 32 temporary registers and 4 texture indirections. It is possible to override these limits using #pragma profileoption directive. E.g. #pragma profileoption MaxTexIndirections=256 raises texture indirections limit to 256.”

The question is: what are the other keywords except for “MaxTexIndirections” to be used with this directive?

thanks

2

No, these are limits of the hardware and shader model specified.

raising the limit there won’t solve restrictions of the shader model, if you really run on a sm2 or sm3 hardware, especially ati, the raise there will only ensure it totally nuts out.

3

I understand that.

I just want to know the other keywords ).

4

me too, where is the list of words?

5

Googled into this thread…

Having problems with error:
“Program ‘frag’, Temporary register limit of 32 exceeded; 48 registers needed to compile program at line 15”

And if you use “#pragma target 3.0”

then this next line does nothing: (?)
#pragma profileoption NumTemps=64

–

Also founded some more options here (not sure if they all work in unity…)

Profile Options

NumTemps=n
NumInstructionSlots=n
NumTexInstructionSlots=n
NumMathInstructionSlots=n
MaxTexIndirections=n
ATI_draw_buffers
ARB_draw_buffers
MaxDrawBuffers=n
MaxLocalParams=n
pixel_center_integer=b
origin_upper_left=b

http://http.developer.nvidia.com/Cg/arbfp1.html