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G400 still only card with true Bump Mapping?

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  • G400 still only card with true Bump Mapping?

    I've been on pre-order for a G400 Max since June and I'm probably going to keep the thing if I ever get it since it's still the only one with Duel Head.

    However, I've been waiting so long now that this Geforce and the S3 2000 is coming out and the Napalm or whatever will be.

    My question to all of you is this...

    When these cards come out will they be able to do Environmentally mapped bump mapping as well or will the G400 still be alone and unequalled?

  • #2
    Permida 3 - Dot3
    G256 -Dot3
    G400 -EMBM
    Glaze3D -EMBM vapour

    Don't know what true bump mapping is.

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    • #3
      permedia 3 = dot3 product
      powerVR series 2 = dot3 product
      Savage2000 = embm
      G400 = embm
      Geforce = dot3 product
      Glaze3d = does anyone really care?
      V4 = who the hell knows what 3dfx is doing.

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      • #4
        I guess you're right in saying there's no such thing as "true" bump-mapping.

        I guess what I'm asking is whether anyone in here thinks that this Dot 3 mapping comes close to the quality and impact of matrox's
        environmentally mapped bump mapping.

        Has anyone seen any decent reviews or screens that illustrate the capabilities of dot 3 or even better.. a comparison between the two implementations?

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        • #5
          Yes, dot3 is good bump mapping. It is real perturbed bump mapping.

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          • #6
            dot3 is better than what they are using now, but it still doesn't do all that EMBM will. dot3 cannot do lighting effects, reflections, or vapor effects like EMBM does.
            Core2 Duo E7500 2.93, Asus P5Q Pro Turbo, 4gig 1066 DDR2, 1gig Asus ENGTS250, SB X-Fi Gamer ,WD Caviar Black 1tb, Plextor PX-880SA, Dual Samsung 2494s

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            • #7
              and EMBM doesnt do dynamic lightsources. Each has its strenghts and weaknesses. EMBM is first out getting the support, thanks to Matrox.

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              • #8
                rickn,

                Tell me, where did you read this???

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                • #9
                  EMBM certainly does do dynamic lighting. And without having to add an extra layer, like dot3 does.
                  Core2 Duo E7500 2.93, Asus P5Q Pro Turbo, 4gig 1066 DDR2, 1gig Asus ENGTS250, SB X-Fi Gamer ,WD Caviar Black 1tb, Plextor PX-880SA, Dual Samsung 2494s

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                  • #10
                    <IMG SRC="http://xplorenet.com/~hti/reflective bump.gif" ALT="bump map this" BORDER="0"></A>
                    Hey look!
                    Dynamic lighting

                    The shadow and reflections move in accordance with the light source. Shadowing even appears correctly in the bumps while the source is moved. Pretty slick, if you ask me.


                    [This message has been edited by Kruzin (edited 09-22-1999).]

                    [This message has been edited by Kruzin (edited 09-22-1999).]
                    Core2 Duo E7500 2.93, Asus P5Q Pro Turbo, 4gig 1066 DDR2, 1gig Asus ENGTS250, SB X-Fi Gamer ,WD Caviar Black 1tb, Plextor PX-880SA, Dual Samsung 2494s

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                    • #11
                      And... the DOT3 can't handle coloured lights or multiple lightsources

                      This is with two color lights

                      This is with one chronomous light

                      [This message has been edited by tish beta2 (edited 09-23-1999).]

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                      • #12
                        rick,

                        You have a link to where it says what S2000 is using? I might buy one if it does EMBM and doesn't suck in general.

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                        • #13
                          EMBM is a feature which is useless for a card with T&L. EMBM needs a lightmap TEXTURE for its light reflection effect. However Transform & Lighting calculates the light strength and color for each vertex and uses gouroud shading for the resulting polygon. Since nog lightmap texture is involved, EMBM is useless.

                          A polygon with DOT3 uses some parameters to specify the light strength and color and the angle of impact. With those parameters it calculates the bumpmapped effect. This feature is usable for T&L.

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                          • #14
                            Does this also mean that the games developed to take advantage of EMBM will see similar effects with the Dot 3 process?

                            Or will software have to be developed specifically for Dot 3 bump mapping for the effects to be realized?

                            BTW; Thanks for all the input on this

                            Comment


                            • #15
                              The Savage2K only has the emboss bump technique AFAIK. Where did you see that it has EMBM?
                              The only other EMBM in the pipeline is the Glaze3D which won't be until next summer if ever :-)

                              DOT3 is closer to "true" bump mapping than EMBM is, but EMBM has nifty effects that would be a lot more difficult to impossible in DOT3.

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