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noar

is pure shader graphic engin useful?

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I want to design a graphic engine for an little game. But I only want to use shader for the graphic render. Is it realism? Thanks!

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Fixed function graphics are really an artifact of a dead age. Shaders-all-the-way is pretty much the only way to go from here on out.

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If it works for your game, then it is useful.

If it doesn't work for your game, then it is not useful.

You are the only one who can decide if it works for your game.

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its a toss up between work load and flexability. Fixed function would take alot less time to implement, especialy if you've never worked with DX or OGL. Shaders on the other hand would give you alot more flexability when it comes to how you want things to look.

What's your knowledge level with whatever API you're going to use?

What's your target platform?

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Target hardware plays a big role: many embedded devices (such as the iPhone), only support fixed function, and many cheap PCs/laptops have crappy integrated cards with poor/non-existent shader support. Thus if you are targetting mobile devices, or the 'casual' market, you are pretty much stuck with fixed function.

If those aren't your target markets, then you still have to decide how far you want to go: Shader Model 4.0 is incredibly powerful, and consequently easier to write for, but only gamers with cutting edge cards will be able to play. SM 3.0 might be a better target if you want to include less wealthy/dedicated gamers, and you might have to fallback to SM 2.0 if you are attempting to target a wide gaming and casual audience.

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