Add RGB bpp link
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@ -4,6 +4,8 @@ Standard bitmap images that can be transferred directly to the PSX VRAM.
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Can be 4bit or 8bit with a CLUT, 16bit or 24 bit in direct color.
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Can be 4bit or 8bit with a CLUT, 16bit or 24 bit in direct color.
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See [this page](https://www.fourcc.org/pixel-format/rgb-bi_rgb/) for further information on how information is stored in the different modes.
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You can access the TIM mode through TIM_IMAGE->mode.
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You can access the TIM mode through TIM_IMAGE->mode.
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Mode can be :
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Mode can be :
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@ -18,8 +20,11 @@ See [FileFormat47.pdf](http://psx.arthus.net/sdk/Psy-Q/DOCS/FileFormat47.pdf), p
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# Transparency
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# Transparency
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In 16bpp mode, only 15b are used for colors (R 5, G 5, B 5). The 15th bit is defined as the STP or Semi-Transparency flag.
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In 16bpp mode, only 15b are used for colors (R 5, G 5, B 5). The 15th bit is defined as the STP or Semi-Transparency flag.
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A primitive transparency is set with `SetSemiTrans()`. The only case where a primitive with unset (=0) STP is transparent is when all values are 0.
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i.e ; using STP 0, B 0, G 0, R 0 will result in a transparent pixel wether the primitive is set to semi-tranparent or not.
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A primitive transparency is set with `SetSemiTrans()`.
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The only case where a primitive with unset (=0) STP is transparent is when all values are 0. i.e ; using STP 0, B 0, G 0, R 0
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will result in a transparent pixel wether the primitive is set to semi-tranparent or not.
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Here are the transparency modes for various values on semi-transparent and opaque primitives :
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Here are the transparency modes for various values on semi-transparent and opaque primitives :
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@ -29,7 +34,7 @@ Here are the transparency modes for various values on semi-transparent and opaqu
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| Semi-transparent primitive | Transparent | Semi-transparent | Non-transparent black | Semi-transparent |
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| Semi-transparent primitive | Transparent | Semi-transparent | Non-transparent black | Semi-transparent |
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See [FileFormat47.pdf](http://psx.arthus.net/sdk/Psy-Q/DOCS/FileFormat47.pdf), p.56, p.192,
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See [FileFormat47.pdf](http://psx.arthus.net/sdk/Psy-Q/DOCS/FileFormat47.pdf), p.56, p.192,
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[FileFormat47.pdf](http://psx.arthus.net/sdk/Psy-Q/DOCS/LibOver47.pdf), p.107
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[LibOver47.pdf](http://psx.arthus.net/sdk/Psy-Q/DOCS/LibOver47.pdf), p.107
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## img2tim semi-transparency options
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## img2tim semi-transparency options
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