Sembiance: samples

2025-05-14T15:01:28Z

samples

← Older revision		Revision as of 08:01, 14 May 2025
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			* Samples: {{DexvertSamples\|video/interspectiveAnimation}}

	This is a cutscene format used by Divide By Zero in two of its adventure games built on Interpective engine, namely [https://www.mobygames.com/game/innocent-until-caught Innocent Until Caught] and its sequel [https://www.mobygames.com/game/guilty Guilty]. The former has its cutscene files named <code>IUC_F0[1-7].DAT</code>, the latter names them <code>GBG_F[01][0-9].DAT</code>.		This is a cutscene format used by Divide By Zero in two of its adventure games built on Interpective engine, namely [https://www.mobygames.com/game/innocent-until-caught Innocent Until Caught] and its sequel [https://www.mobygames.com/game/guilty Guilty]. The former has its cutscene files named <code>IUC_F0[1-7].DAT</code>, the latter names them <code>GBG_F[01][0-9].DAT</code>.

Kostya: fill information from the source code for ScummVM implementation of Interspecive engine

2022-11-15T17:13:55Z

fill information from the source code for ScummVM implementation of Interspecive engine

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This is a cutscene format used by Divide By Zero in two of its adventure games built on Interpective engine, namely [https://www.mobygames.com/game/innocent-until-caught Innocent Until Caught] and its sequel [https://www.mobygames.com/game/guilty Guilty]. The former has its cutscene files named <code>IUC_F0[1-7].DAT</code>, the latter names them <code>GBG_F[01][0-9].DAT</code>.

Animation files contain one or more blocks consisting of I-frame and several P-frames. Each block starts with 32-bit little-endian block size and 16-bit number of frames in the block. Each frame starts with 16-bit frame data size.

I-frame starts with 16-bit width and height (which should always be 320 and 200) and image data compressed in the same way as in [[PCX]]. At the end of image data there should be <code>0xC0</code> byte signalling end of image followed by 768-byte palette.

P-frame starts with two bytes that should be used to signal short (one-byte) and long (16-bit) skips. So every byte but those two is a pixel value and after a signal byte a skip value should be read. In case skip value is zero, the original pixel value should be output. E.g. if <code>02</code> means long skip, <code>02 03 01</code> means "skip 0x103 (=259) pixels" and <code>02 00 00</code> means "output 02 pixel".

[[Category:Game Formats]]

Interspective animation - Revision history

Sembiance: samples

Kostya: fill information from the source code for ScummVM implementation of Interspecive engine