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Newcomers DBPro Corner / fx shaders ? how do you write in the colours?

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Cliff Mellangard 3DEGS
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18
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Joined: 20th Feb 2006
Location: Sweden
Posted: 28th May 2008 21:58 Edited at: 28th May 2008 21:58
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i have yust got some time again to fool around with dbp and started to look in to shaders and are a bit confused about how you write colours there as it aint rgb nr its float type of nr?
it where so long time ago i coded anything so that i feel like an newbi again
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dark coder
22
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Joined: 6th Oct 2002
Location: Japan
Posted: 29th May 2008 16:33
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"type of nr"? Colours and generally everything are stored in floats because the values are scaled to a 0.0 to 1.0 range, this is because textures aren't always 32bit ARGB so using a scale of 0-255 would make no sense if you used a 64bit image. However it does make things far easier to work with. To 'write' a colour look at the return value from the fragment/pixel stage, that will be a 4 component float(ARGB).

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