MY80- Δημοσ. 18 Σεπτεμβρίου 2003 Δημοσ. 18 Σεπτεμβρίου 2003 http://english.bonusweb.cz/interviews/carmackgfx.html Hi John, No doubt you heard about GeForce FX fiasco in Half-Life 2. In your opinion, are these results representative for future DX9 games (including Doom III) or is it just a special case of HL2 code preferring ATI features, as NVIDIA suggests? Unfortunately' date=' it will probably be representative of most DX9 games. Doom has a custom back end that uses the lower precisions on the GF-FX, but when you run it with standard fragment programs just like ATI, it is a lot slower. The precision doesn't really matter to Doom, but that won't be a reasonable option in future games designed around DX9 level hardware as a minimum spec. [/quote']
pseira Δημοσ. 18 Σεπτεμβρίου 2003 Δημοσ. 18 Σεπτεμβρίου 2003 Diladi to doom III einai teleiws MADE FOR NV....... Skatoules
MY80- Δημοσ. 18 Σεπτεμβρίου 2003 Μέλος Δημοσ. 18 Σεπτεμβρίου 2003 Diladi to doom III einai teleiws MADE FOR NV.......Skatoules As eimaste antikeimenikoi, kanenas SOVAROS developer (bioware/eidos/ea kathws kai oi typoi pou etoimazoune to stalker are OFF my "serious devs" book ) den ftiaxnei kati apokleistika gia enan developer. Apla olh h nv3x seira einai MADE FOR DOOM3. ps2 isa isa gia na borei na trexei tous elaxistous shaders se signle-pass kai xamhlo precision gia na borei na tous trexei grhgora (Estw oti to fp16 kai to fp32 kollane kapws sto dx9, to fx12 ti douleia exei ? Dx9 is all about FLOATING POINT, oxi ints Gia thn akriveia to fx12 den einai exposed KATHOLOU sto spec, o monos tropos na xrhsimopoieithei (ektws otan ginetai forced apo ton driver) einai sthn opengl extension gia fragment programs ths nvidia ), tromero texel fillrate (450mhz sto nv35 kai 500 sto nv30 ), tromero bwidth (nv35), 2 stencil ops/pipeline, ultrashadow (a feature requested by carmack himself). Apo thn allh den ypostirizei 100% symfwna me to spec float buffers (vasika den ypostirizei float buffers me wrapping kai mip-mapping, anametai to sygekrimeno format na prostethei sto dx9 se mellontiko update), multiple render targets (ypostirizei mia "parallagh" tous, multiple texture elements opws thn onomazei h nvidia), exei tromera provlhmata me ps2 taxythta kai register usage...gia na mhn ta polylogw, den paei kala se otidhpote DEN XREIAZETAI to doom3. De lew, ws "doom3 accelerator", oi fx einai oti kalytero ginetai. Apo thn allh omws, yparxoune kai games mia genia brosta apo to doom3...
epote Δημοσ. 18 Σεπτεμβρίου 2003 Δημοσ. 18 Σεπτεμβρίου 2003 opsometha! prosopika akoma perimeno to doom 3 me ekseretikh anipomonisia mithe na se rotiso, ksereis poia einai h diaforetikotita sthn prosegish tou fotismou anamesa se HL2 kai doom 3? thelo na po, katanoo th methodo tou doom, stencil shadows, kai to geniko consept tou oclusion, shape extrusion, depth limits ktl to piano, meses akres omos to half life pos to paei? me photo textures pali h pos ta lene? me provolh 2sdiaston modelon opos mexri tora? pos?
MY80- Δημοσ. 19 Σεπτεμβρίου 2003 Μέλος Δημοσ. 19 Σεπτεμβρίου 2003 opsometha! prosopika akoma perimeno to doom 3 me ekseretikh anipomonisia mithe na se rotiso' date=' ksereis poia einai h diaforetikotita sthn prosegish tou fotismou anamesa se HL2 kai doom 3? thelo na po, katanoo th methodo tou doom, stencil shadows, kai to geniko consept tou oclusion, shape extrusion, depth limits ktl to piano, meses akres omos to half life pos to paei? me photo textures pali h pos ta lene? me provolh 2sdiaston modelon opos mexri tora? pos?[/quote'] Den exw idea...kati me ps2 paizei pantws. Eixa diavasei se ena presentation oti exei soft shadows, kati pou de ginetai me stencils alla mono me shadow buffers. Apo thn allh, oi radeon den ypostirizoun shadow buffers kai gia na to kanane showcase se radeon kai na eixe soft shadows, kati allo prepei na paizei...
epote Δημοσ. 19 Σεπτεμβρίου 2003 Δημοσ. 19 Σεπτεμβρίου 2003 MY80$ teleios texnika ginete soft shadow me stencils. px mporeis na kaneis cast dio shadow volumes, ena ligo megalitero apo to allo (apo den einai tipota diskolo, apla stous pinakes pou kratane tous ray cast h ti skata metasximatismous vazeis enan akoma pou tha kanei kapoio scaling) xromatizeis thn eksoterikh (megaliterh skia) leykh h thn ypologizeis sto alpha gia transaparency kai meta kane ena gradient apo mayro se transapernt anamesa stis dio skies:) vevaia "texnika" ginete giati meta thes DIO skies gia KATHE antikeimeno KAI thes kai tous ypologismous tou gradient, opote praktika yperdiplasiases tis apaitiseis kai o cray deixnei ameliteos:P PANTOS nai fantazomai me PS2 kati tha paizei sto HL2 alla oposdipote oute glabal ilumination tha einai oute pragmatikes skies e? opsometha, an matheis kati pesto, to idio kai ego:)
MY80- Δημοσ. 20 Σεπτεμβρίου 2003 Μέλος Δημοσ. 20 Σεπτεμβρίου 2003 MY80$ teleios texnika ginete soft shadow me stencils. px mporeis na kaneis cast dio shadow volumes' date=' ena ligo megalitero apo to allo (apo den einai tipota diskolo, apla stous pinakes pou kratane tous ray cast h ti skata metasximatismous vazeis enan akoma pou tha kanei kapoio scaling) xromatizeis thn eksoterikh (megaliterh skia) leykh h thn ypologizeis sto alpha gia transaparency kai meta kane ena gradient apo mayro se transapernt anamesa stis dio skies:) vevaia "texnika" ginete giati meta thes DIO skies gia KATHE antikeimeno KAI thes kai tous ypologismous tou gradient, opote praktika yperdiplasiases tis apaitiseis kai o cray deixnei ameliteos:P PANTOS nai fantazomai me PS2 kati tha paizei sto HL2 alla oposdipote oute glabal ilumination tha einai oute pragmatikes skies e? opsometha, an matheis kati pesto, to idio kai ego:)[/quote'] Hmmm, kapou eixa diavasei (De thymamai kai pou gmt) oti h lighting approach tou carmack den epitrepei soft shadows ektws ama ginei xrhsh allwn texnikwn (logika na kaneis project apo texture thn soft shadow) an kai "logika" ginetai ki auto pou les... Anyway, to hl2, oxi, de tha exei global illumination alla ta modela tha exoune "real" skies (o kosmos panta me static lighting, global illumination a-la doom3 se exwteriko perivallon tha skotone opoiadhpote karta grafikwn auths h ths epomenhs genias ) An mathw tipota parapanw I'll let you know
epote Δημοσ. 20 Σεπτεμβρίου 2003 Δημοσ. 20 Σεπτεμβρίου 2003 egine:) euxaristo kai ego to idio mpravo statikos fotismos den to eixa skeytei:P apotelesma tou statikou fotismou einai oti mporei px na xrhshmopoihsoun photo maps h pos ta lene gia skies sta akinita tmhmata tou paixnidiou (toixoun patomata whatnot) lol eksoteriko global ilumination:P hdh ta point lights einai DYSKOLA sto rendering, skepsou orismena omni me paralilo ray casting, to ligotero PANAGIA mou:P tha thelei 80 giga mnimh mono gia tous metasximatismous:P
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