Bumpmap effect

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  • So one of the under-discussed shader effects we have now is bumpmapping. It's a great effect, as shown in the Ghost Shooter demo, I just... have no idea how to utilize it. <img src="smileys/smiley36.gif" border="0" align="middle" />

    If anyone's taken a look at the capx for the demo, can you explain exactly what Ashley did to the bumpmapped sprite? It's all blue and pink and whatnot. I just don't get how the whole thing works really, I just know the end result looks good!

  • Ha, this is a very huge knowledge~

    This is one part of the 3D artist section~

    Here is the full information of normal map~


    You can ask me if need help~ =)

  • I know it's a pretty huge subject when dealing with 3D, but do I really need to know all that to do what Ashley did in the demo? <img src="smileys/smiley5.gif" border="0" align="middle" />

  • A simple tutorial on this would be amazing.

  • Sorry for misunderstanding~

    You mean how to apply normal map within C2?

    Actually is very simple~

    You made an diffuse map and bake a normal map for it~

    I will use the Photoshop NVIDIA plugin~

    Then put the normal map on top of the diffuse map within C2~

    Select the normal map, choose normal bump in the effect~

    It's on the most bottom, it's done~ =)

  • yeah, bumpmap in C2 is quite nice actually.

    Just be sure your normal map have proper coordinates - you'll need to invert it to look properly in some cases.

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  • A simple tutorial on this would be amazing.

    Yeah, I second this. To be honest I have no idea what you other guys are saying. <img src="smileys/smiley17.gif" border="0" align="middle" />

  • Bumpmap

    Move mouse, mouse scroll up/down

  • Sweet, sweet, thanks! Now I need to figure out how to bake a normal map... I don't have anything fancy like Photoshop -- can I do it with Blender? I'll see what I can find about that.

    Edit: Actually I think I'll go with Gimp. It has a clone of the NVIDIA plugin Akira mentioned earlier. Now for some serious trial and error!

  • SullyTheStrange

    Actually there have several ways to bake normal map~

    You can use xNormal, CrazyBump or ShaderMap to bake it~

    These software did a nice job on 2D and 3D maps baking~

    xNormal is a totally free software, you can try that~ =)

  • But how do you get it so that the bump map is dynamic with a light? What I mean is that bump maps are supposed to change depending on where the light is to make it look 3D

  • eRk, you have to edit the bump map effect's parameters during runtime to achieve that effect. You can write some events that check where the object with the effect is located on the screen and change the X parameter accordingly from 0 (meaning the object is at the left side of the screen) to 50 (at the middle) and then 100 (at the right).

  • Gotcha. Thanks!

  • shinkan

    Could you upload the .capx again please ?

    I'd like to see some magic !

  • Templar

    (don't work in IE)

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