PCTuning fórum

sheriff.wiggum píše:vzhledem k tve professional edition kontaktuj technickou podporu

stifmajster píše:

sheriff.wiggum píše:vzhledem k tve professional edition kontaktuj technickou podporu

hmm dik......ale tuhle chybu mi to delalo i u 2005!

sheriff.wiggum píše:

stifmajster píše: hmm dik......ale tuhle chybu mi to delalo i u 2005!

kterou take legalne drzis a tudiz opet muzes kontaktovat technickou podporu ohledne runtime erroru

stifmajster píše:hmm ty si myslis ze ji mam legalne???

Luks píše:btw co máš za grafiku?

rodier píše:ja hlavne nechapu.. proc je to tak narocne? dyt takovehle sceny se daj udelat uplne v poho...

cim to je?

Jawed píše:Here Nick kindly identified a 3DMk06 shader that uses dynamic branching.

Additionally, sections of the code use partial precision (_PP at the end of the instruction name).

What's interesting, in my view, is:

• clearly this is an optimisation for NVidia hardware - and who knows whether the driver will even respect this and instead just change every instruction to _PP
• the complexity in identifying the portions of shader code that can withstand _PP

To be honest, if you're a half-decent programmer, then an awareness of precision is right there at the time the algorithm is cast and the data structures formed, so I don't think it's actually that difficult to say these "variables are _PP". It's not much different from choosing texture formats, I guess.

I can imagine the lead graphics engine developer will have laid-down the parameters for _PP, too - so the code monkeys can get on without having to think too much.

I suppose where it might get interesting is in artist-configured shaders - but again I imagine the lead dev will have identified the conditions under which precision is at risk.

Arguably, I suppose, it would be nice as a dev to be able to think "FP32 all the way, no need to worry about the precision of my variables" - like when I used to program finance stuff I knew my money fields were always 15.4 and life was simple, I just had to be careful about when I rounded, etc. etc.

Jawed

Neeyik píše:Although I've not sat through the several hundred pixel shader dumps, the longer ones from the HDR test look something like this:

ps_3_0


def c6 , -0.018729299306869507000000, 0.074261002242565155000000, 1.570728778839111300000000, 10000.000000000000000000000000

def c7 , 0.000000000000000000000000, 1.000000000000000000000000, 0.031250000000000000000000, 0.062500000000000000000000

def c8 , 2.000000000000000000000000, -1.000000000000000000000000, 1.000000000000000000000000, -0.212114393711090090000000

def c9 , 0.416087001562118530000000, -0.303380995988845830000000, 0.135195001959800720000000, 0.220419004559516910000000

def c10 , -0.183682993054389950000000, 0.077253997325897217000000, -0.252817988395690920000000, -0.237764000892639160000000

def c11 , -0.054127000272274017000000, 0.662913024425506590000000, -0.031250000000000000000000, 0.318309873342514040000000

def c12 , -0.486135989427566530000000, 0.397747993469238280000000, -0.397747993469238280000000, 3.000000000000000000000000

def c13 , 0.574523985385894780000000, -0.062500000000000000000000, -0.574523985385894780000000, 0.108253002166748050000000

def c14 , -0.625000000000000000000000, -0.750000000000000000000000, 0.875000000000000000000000, 0.187500000000000000000000

def c15 , 1.000000000000000000000000, 1.001000046730041500000000, -0.797193884849548340000000, 0.014567226171493530000000

def c16 , 0.636619746685028080000000, -1.009999990463256800000000, -1.120000004768371600000000, 0.000100009805464651440000

def c17 , 0.500000000000000000000000, 1.000000000000000000000000, 0.159154936671257020000000, 16.000000000000000000000000

dcl_texcoord0 v0.xy
dcl_texcoord1 v1.xy
dcl_texcoord2 v2.xyz
dcl_texcoord3 v3.xyz
dcl_texcoord4 v4.xyz
dcl_texcoord5 v5.xyz
dcl_texcoord6 v6.xyz
dcl_texcoord7 v7.xyz
dcl v4096.xy
dcl_2d s0
dcl_2d s1
dcl_2d s2
dcl_2d s3
dcl_2d s4
dcl_cube s5
dcl_cube s6
texld r0 , v0.xyxx , s3
mad_pp r1.xyz , c8.xxxx , r0.wyzw , c8.yyyy
nrm_pp r2.xyz , v2
dp3_pp r4.x , r1 , v3
dp3_pp r4.y , r1 , v4
dp3_pp r4.z , r1 , v5
dp3_pp r0.x , r2 , v3
dp3_pp r0.y , r2 , v4
dp3_pp r0.z , r2 , v5
dp3_pp r0.w , -r0 , r4
add_pp r0.w , r0.wwww , r0.wwww
dp3_sat_pp r2.w , r1 , r2
mad_pp r0.xyz , r4 , -r0.wwww , -r0
texld_pp r1 , r0 , s6
mad_pp r0.w , r2.wwww , c6.xxxx , c6.yyyy
add_pp r0.z , -r2.wwww , c8.zzzz
mad_pp r0.w , r0.wwww , r2.wwww , c8.wwww
rsq_pp r0.z , r0.zzzz
mad_pp r0.w , r0.wwww , r2.wwww , c6.zzzz
rcp_pp r0.z , r0.zzzz
mul_pp r0.w , r0.wwww , r0.zzzz
mad r0.xy , r0.wwww , c16.xxxx , c16.yzzw
mul r0.xy , r0 , r0
rcp r0.x , r0.xxxx
rcp r0.y , r0.yyyy
add r0.w , -r0.xxxx , c6.wwww
mul r1.w , r0.wwww , c16.wwww
add r2.w , r0.yyyy , c15.zzzz
texld r0 , v0.xyxx , s2
mov r6.z , c4.xxxx
add r2.z , -r6.zzzz , c5.xxxx
mad r2.w , r2.wwww , -c15.wwww , c15.xxxx
mad_pp r5.w , r0.wwww , r2.zzzz , c4.xxxx
mul_pp r3 , r0.xyzz , c3.xyzz
mul_pp r2.z , r5.wwww , r5.wwww
add_pp r0 , r3 , c8.yyyy
mad_pp r4.w , r5.wwww , -r2.zzzz , c8.zzzz
mad r2 , r2.wwww , r0 , c8.zzzz
add_pp r0.xy , -r4.wwww , c15
mad_sat_pp r1.w , r0.yyyy , r1.wwww , r0.xxxx
add_pp r5.w , -r5.wwww , c8.zzzz
texld_pp r0 , r4 , s5
mul_pp r0 , r3 , r0.xyzz
mul_pp r1 , r1.xyzz , r1.wwww
mul_pp r0 , r5.wwww , r0
mul r2 , r2 , r1
mul_pp r0 , r4.wwww , r0
texld r1 , v1.xyxx , s4
mul r2 , r2 , r1.wwww
mad_pp r0 , r0 , r1.xxxx , r2

cmp r2.w , -v6.zzzz , c7.xxxx , c7.yyyy
mul r1.xy , v4096 , c7.zzzz
texld_pp r1 , r1 , s1
if_ne r2 , -r2.wwww ******* NOTE ******
dsx r2 , v7.xyxy
dsy r3 , v7.xyxy
add r2 , abs r2 , abs r3
mov r3.w , c2.xxxx
mad_pp r2 , r2 , r3.wwww , c1.xyxy
mul_pp r4 , r1.zwxy , r2
mad r2 , r4 , c14.zzww , v7.xyxy
texldl r1 , r2.xyxy , s0
texldl r5 , r2.zwzw , s0
mad r2 , r4.zwzw , c17.xxyy , v7.xyxy
texldl r3 , r2.xyxy , s0
texldl r2 , r2.zwzw , s0
mov r1.y , r5.xxxx
mov r1.z , r3.xxxx
mov r1.w , r2.xxxx
mul_pp r2 , r4 , c9.xxyy
add r1 , r1 , -v7.zzzz
mad_pp r2 , r4.zwxy , c9.zzww , r2
cmp_pp r1 , r1 , c7.yyyy , c7.xxxx
add r3 , r2 , v7.xyxy
texldl r2 , r3.xyxy , s0
texldl r5 , r3.zwzw , s0
mul_pp r3 , r4 , c10.xxyy
mad_pp r3 , r4.zwxy , c10.zzww , r3
mov r2.y , r5.xxxx
add r3 , r3 , v7.xyxy
texldl r5 , r3.xyxy , s0
texldl r3 , r3.zwzw , s0
mov r2.z , r5.xxxx
mov r2.w , r3.xxxx
add r3 , r2 , -v7.zzzz
mul_pp r2 , r4 , c11.xxyy
cmp_pp r3 , r3 , c7.yyyy , c7.xxxx
mad_pp r2 , r4.zwxy , c11.zzyy , r2
dp4_pp r6.w , r3 , c7.wwww
add r2 , r2 , v7.xyxy
texldl r3 , r2.xyxy , s0
texldl r5 , r2.zwzw , s0
mul_pp r2 , r4 , c12.xxyy
mad_pp r2 , r4.zwxy , c12.xxzz , r2
mov r3.y , r5.xxxx
add r5 , r2 , v7.xyxy
texldl r2 , r5.xyxy , s0
texldl r5 , r5.zwzw , s0
mov r3.z , r2.xxxx
mul_pp r2 , r4 , c13.xxyy
mov r3.w , r5.xxxx
mad_pp r2 , r4.zwxy , c13.zzww , r2
add r3 , r3 , -v7.zzzz
add r5 , r2 , v7.xyxy
texldl r2 , r5.xyxy , s0
texldl r5 , r5.zwzw , s0
mov r2.y , r5.xxxx
mad r4 , r4 , c14.xxyy , v7.xyxy
texldl r5 , r4.xyxy , s0
texldl r4 , r4.zwzw , s0
mov r2.z , r5.xxxx
mov r2.w , r4.xxxx
cmp_pp r3 , r3 , c7.yyyy , c7.xxxx
add r2 , r2 , -v7.zzzz
dp4 r3.w , r3 , c7.wwww
cmp_pp r2 , r2 , c7.yyyy , c7.xxxx
add_pp r3.w , r6.wwww , r3.wwww
dp4 r2.w , r2 , c7.wwww
dp4 r1.z , r1 , c7.wwww
add_pp r1.w , r3.wwww , r2.wwww
add_pp r6.w , r1.zzzz , r1.wwww
texld r1 , v0.xyxx , s3
mad_pp r1.xyz , c8.xxxx , r1.wyzw , c8.yyyy
nrm_pp r5.xyz , v6
dp3_sat_pp r5.w , r1 , r5
nrm_pp r2.xyz , v2
add_pp r2.w , -r5.wwww , c8.zzzz
mad_pp r1.w , r5.wwww , c6.xxxx , c6.yyyy
rsq_pp r2.w , r2.wwww
mad_pp r1.w , r1.wwww , r5.wwww , c8.wwww
rcp_pp r2.w , r2.wwww
mad_pp r1.w , r1.wwww , r5.wwww , c6.zzzz
add_pp r4.xyz , r5 , r2
mul_pp r1.w , r2.wwww , r1.wwww
nrm_pp r3.xyz , r4
mad r4.xy , r1.wwww , c16.xxxx , c16.zyzw
dp3_sat_pp r4.z , r1 , r3
mul r3.xy , r4 , r4
dp3_sat_pp r1.y , r1 , r2
rcp r2.x , r3.xxxx
rcp r2.y , r3.yyyy
mad_pp r1.w , r1.yyyy , c6.xxxx , c6.yyyy
add_pp r1.z , -r1.yyyy , c8.zzzz
mad_pp r1.w , r1.wwww , r1.yyyy , c8.wwww
rsq_pp r1.z , r1.zzzz
mad_pp r1.w , r1.wwww , r1.yyyy , c6.zzzz
rcp_pp r1.y , r1.zzzz
add r1.z , r2.xxxx , c15.zzzz
mul_pp r1.w , r1.wwww , r1.yyyy
mul r1.z , r1.zzzz , c15.wwww
mad r1.xy , r1.wwww , c16.xxxx , c16.yzzw
add r1.w , -r2.yyyy , c6.wwww
mul r1.xy , r1 , r1
mul r1.w , r1.zzzz , r1.wwww
rcp r1.x , r1.xxxx
rcp r1.y , r1.yyyy
mul r1.z , r1.wwww , c16.wwww
add r1.w , -r1.xxxx , c6.wwww
mul r1.w , r1.zzzz , r1.wwww
add r1.z , -r6.zzzz , c5.xxxx
texld r3 , v0.xyxx , s2
mad_pp r4.w , r3.wwww , r1.zzzz , c4.xxxx
mul r3.w , r1.wwww , c16.wwww
add_pp r6.z , -r4.wwww , c8.zzzz
add r1.z , r1.yyyy , c15.zzzz
rcp_pp r1.w , r6.zzzz
mad r6.y , r1.zzzz , -c15.wwww , c15.xxxx
mul_pp r1.w , r1.wwww , c12.wwww
pow r2.z , r4.zzzz , r1.wwww
add r2.w , r1.wwww , c8.zzzz
mul_pp r1 , r6.wwww , c0.xyzz
mul r2.w , r2.zzzz , r2.wwww
mul_sat r2.w , r2.wwww , c17.zzzz
mul_pp r4.z , r4.wwww , r4.wwww
mul r2 , r1 , r2.wwww
mad_pp r6.w , r4.wwww , -r4.zzzz , c8.zzzz
add_pp r5.xy , -r6.wwww , c15
mul_pp r4 , r3.xyzz , c3.xyzz
mad_sat r5.y , r5.yyyy , r3.wwww , r5.xxxx
add_pp r3 , r4 , c8.yyyy
mul r2 , r2 , r5.yyyy
mad r3 , r6.yyyy , r3 , c8.zzzz
mul_sat_pp r5.z , r5.zzzz , c17.wwww
mul r3 , r2 , r3
texld r2 , v1.xyxx , s4
mul_pp r1 , r1 , r4
mul_pp r1 , r6.zzzz , r1
mul_pp r1 , r6.wwww , r1
mul r3 , r3 , r2.wwww
mul_pp r1 , r1 , c11.wwww
mul_pp r2.w , r5.wwww , r5.zzzz
mad_pp r1 , r1 , r2.xxxx , r3
mad oC0 , r1 , r2.wwww , r0
else
mov oC0 , r0
endif

There are a few like this in the HDR tests.

STANIK#007 píše:mam na to takovaj nazor ze kdyz na tom makali celej rok tak se mohli trochu vic snazit