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DarkBASIC Professional Discussion / Set Blending Mapping On and DarkLights

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MateiSoft Romania
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Joined: 16th Oct 2013
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Posted: 13th Jan 2016 16:06
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Hello,

When i enable set blend mapping on and render some lights with darklights, when the process is finished, it gives me a graphic card crash and application crash, or sometimes, just application crash.

Here is the code for blending:

Alex Matei CEO
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WickedX
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Joined: 8th Feb 2009
Location: A Mile High
Posted: 14th Jan 2016 23:44
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I believe Darklights uses DirectX texture blending to blend the lightmap images with the base texture. Have you tried blending your image on a different stage index using the second variation of the function.


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MateiSoft Romania
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Posted: 19th Jan 2016 15:45
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Yes i tried, still no result
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James H
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Posted: 19th Jan 2016 21:00
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I don't have dark lights but I think I recall fpsc uses it, a lot of times I found it would crash when processing the lightmaps on high quality which I think was down to either too high a poly count in some cases(when not necessarily on high settings) or the texture sizes where to big, have you tried the whole process using just a few cubes and lights on a plane with low res textures? I would suggest getting it working on such a basic scene first if you already haven't done so.
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MateiSoft Romania
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Posted: 20th Jan 2016 12:15
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The problem is that darklights does not work with that specific command activated "Set Blend Mapping On". If that command is not activated, the whole system works just fine, i tweaked darklights pretty good to have low res and fast lightmapping but when the object has texture on it, the low res light not showing.
Alex Matei CEO
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Van B
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Posted: 20th Jan 2016 13:55
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I'd just use a shader instead... never been a fan of the blend mapping commands and a shader to show a lightmap is quite straightforward, and affords a lot more control... especially if you want normal mapping as well.
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