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OBD talk:TXMP: Difference between revisions
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;[ | ;[[wp:Mipmap|MIP mapping]] (MIP stands for "multum in parvo") | ||
:A texture mapping technique that uses multiple texture maps, or MIP maps. Each MIP map is half the size of the first one, providing several texture maps for various levels of depth. | :A texture mapping technique that uses multiple texture maps, or MIP maps. Each MIP map is half the size of the first one, providing several texture maps for various levels of depth. | ||
;[ | ;[[wp:Alpha compositing|Alpha blending]] | ||
:In computer graphics, the combining of the alpha channel with other layers in an image in order to show translucency. | :In computer graphics, the combining of the alpha channel with other layers in an image in order to show translucency. | ||
:The alpha channel is an additional eight bits used with each pixel in a 32-bit graphics system that can represent 256 levels of translucency. | :The alpha channel is an additional eight bits used with each pixel in a 32-bit graphics system that can represent 256 levels of translucency. | ||
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:rgb555, rgb565, rgba5551, argb1555, argb4444, rgba4444, rgba8888, s3, compressed, i8, i1, i4a4 | :rgb555, rgb565, rgba5551, argb1555, argb4444, rgba4444, rgba8888, s3, compressed, i8, i1, i4a4 | ||
:(r=red, g=green, b=blue, a=alpha, i=intensity; see http://www.cg.tuwien.ac.at/~wimmer/view3dx/TEXUS.html too) | :(r=red, g=green, b=blue, a=alpha, i=intensity; see [https://web.archive.org/web/20130909194954/http://www.cg.tuwien.ac.at/~wimmer/view3dx/TEXUS.html HERE] too) | ||
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;9 | ;9 | ||
:compressed (four times) (algorithm detailed elsewhere) | :compressed (four times) (algorithm detailed elsewhere) | ||
::equivalent to [[ | ::equivalent to [[wikipedia:S3_Texture_Compression#DXT1|GL_COMPRESSED_RGB_S3TC_DXT1_EXT]] OpenGL compressed image format [[User:Neo|Neo]] | ||
:::(note: ARB stands for Architecture Review Board, not Alpha Red Blue ^^ [[User:Geyser|geyser]]) | :::(note: ARB stands for Architecture Review Board, not Alpha Red Blue ^^ [[User:Geyser|geyser]]) | ||
:Q: Aha, "dxt1". Any more ideas looking at '''BSL:PC vs. Mac Comparison (list)#Only_on_Mac_beta_4'''? [[User:Geyser|geyser]] | :Q: Aha, "dxt1". Any more ideas looking at '''BSL:PC vs. Mac Comparison (list)#Only_on_Mac_beta_4'''? [[User:Geyser|geyser]] | ||
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::Yes, "animated TXMP" is better because if you say TXAN, people like me will get the impression that you're doing something wrong, and will ask you stupid questions. Also, when you say it "doesn't seem to work" you should give some details. What does it mean that animated TXMP don't work in PSpc, or that reflectivity doesn't seem to work for animated TXMP? try to make the result of your experiment clear to others. --[[User:Geyser|geyser]] 00:13, 13 October 2008 (CEST) | ::Yes, "animated TXMP" is better because if you say TXAN, people like me will get the impression that you're doing something wrong, and will ask you stupid questions. Also, when you say it "doesn't seem to work" you should give some details. What does it mean that animated TXMP don't work in PSpc, or that reflectivity doesn't seem to work for animated TXMP? try to make the result of your experiment clear to others. --[[User:Geyser|geyser]] 00:13, 13 October 2008 (CEST) | ||
::* Ok, first case: I modified a Fury head texture (giving it alpha channel and a reflectivity map which was an animated TXMP). One images of the set was taken but no other more. | ::* Ok, first case: I modified a Fury head texture (giving it alpha channel and a reflectivity map which was an animated TXMP). One images of the set was taken but no other more. | ||
::* Second case: a striker got an animated TXMP for some body textures, every TXMP of a set should use a reflectivity map but these parts became transparent. [ | ::* Second case: a striker got an animated TXMP for some body textures, every TXMP of a set should use a reflectivity map but these parts became transparent. | ||
[[file:messed_up_Striker.jpg|thumb|Halloween Striker ^_^]] | |||
::* Third case: Part specification uses simple TXMP but I tried an animated on and it didn't work. It can take images out of the set but only one. --[[User:Paradox-01|Paradox-01]] 16:33, 13 October 2008 (CEST) | ::* Third case: Part specification uses simple TXMP but I tried an animated on and it didn't work. It can take images out of the set but only one. --[[User:Paradox-01|Paradox-01]] 16:33, 13 October 2008 (CEST) | ||
:::So you haven't kept the modded instances you used? Bad boy ^_^ I'm pretty sure the second case, at least, should work. Oh well, I guess I'll have to try all three by myself some other time. --[[User:Geyser|geyser]] 16:59, 13 October 2008 (CEST) | :::So you haven't kept the modded instances you used? Bad boy ^_^ I'm pretty sure the second case, at least, should work. Oh well, I guess I'll have to try all three by myself some other time. --[[User:Geyser|geyser]] 16:59, 13 October 2008 (CEST) | ||
::::Irony of life: case 2 is already deleted. But you can have a look onto the others: | ::::Irony of life: case 2 is already deleted. But you can have a look onto the others: <nowiki>http://www.paradox.oni2.net/temp/case1.zip</nowiki> (dead link) and <nowiki>http://www.paradox.oni2.net/temp/case3.zip</nowiki> (dead link). | ||
::::PS: Reflection means to me a mirrored image. I call ''our'' reflection a fake since it doesn't reflect (mirror) the environment but shows another image. Look at the fury's head closely: there's just the bomb_fire texture inside. --[[User:Paradox-01|Paradox-01]] 17:59, 13 October 2008 (CEST) | ::::PS: Reflection means to me a mirrored image. I call ''our'' reflection a fake since it doesn't reflect (mirror) the environment but shows another image. Look at the fury's head closely: there's just the bomb_fire texture inside. --[[User:Paradox-01|Paradox-01]] 17:59, 13 October 2008 (CEST) | ||
:::::If you consider non-convex objects (like two mirrors "seeing" each other), you can see that "real" reflections of the environment would be very heavy to compute (the multiple reflections can require a virtual infinity of rendering passes), so naturally games use more or less elaborate "fakes". Oni's fake is actually quite primitive and a reflective ball, for example, won't look realistic at all as you move around it (I hate that ^_^). But I digress; I was just confused by the word "inside" as you used it. Now... back to cases 1-3: cases 1 and 3 indeed "don't seem to work"; for 3, the engine ignores animations when setting up the envmap; for 1, it's a shame, but the engine ignores animations when setting up the windows, too; 2 ''does'' work, but since OniSplit doesn't allow you to create the right thing directly right now, both of us had to use a workaround and I have no idea where you messed up. Try again ^_^ --[[User:Geyser|geyser]] 02:33, 14 October 2008 (CEST) | :::::If you consider non-convex objects (like two mirrors "seeing" each other), you can see that "real" reflections of the environment would be very heavy to compute (the multiple reflections can require a virtual infinity of rendering passes), so naturally games use more or less elaborate "fakes". Oni's fake is actually quite primitive and a reflective ball, for example, won't look realistic at all as you move around it (I hate that ^_^). But I digress; I was just confused by the word "inside" as you used it. Now... back to cases 1-3: cases 1 and 3 indeed "don't seem to work"; for 3, the engine ignores animations when setting up the envmap; for 1, it's a shame, but the engine ignores animations when setting up the windows, too; 2 ''does'' work, but since OniSplit doesn't allow you to create the right thing directly right now, both of us had to use a workaround and I have no idea where you messed up. Try again ^_^ --[[User:Geyser|geyser]] 02:33, 14 October 2008 (CEST) | ||
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