ELSC (File Format): Difference between revisions

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ELSC (File Format) (view source)

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{{research|2|Parameter keys need reverse-engineering}}
{{research|1|Properties beyond MP1 need to be discovered and documented}}
The '''ELSC''' [[Effect Script|effect script]] format is used to build electric effects in the ''Metroid Prime'' series.
The '''ELSC''' [[Particle Script|particle script]] format is used to build electrical effects in the ''Metroid Prime'' series.
Electric effects are commonly used to dynamically-render lightning and electrical arcs.
Electrical effects are commonly used to dynamically draw lightning and electrical arcs.


== ELSC Keys ==
An electrical ''particle instance'' is a single line subdivided into ''segments''. Whenever a new instance is generated, its central
vertices are displaced using a [[wikipedia:Fractal|random fractal algorithm]]. The instance's color and line-width is updated
over its lifetime.


'''Scope''' is one of (''Constant'', ''System'')
== Properties ==


* ''Constant'' parameters are evaluated once initially and retained within the system.
Particle generator properties are assembled into a [[Particle Script|particle script]]
* ''System'' parameters are evaluated per-system, per-frame.
file tagged with <code>ELSM</code>. Any of the following properties are loaded into a
''description'' class for constructing an arbitrary number of ''particle generators''.


{| class="wikitable"
{| class="wikitable"
!FourCC
! FourCC
!Scope
! Type
!Data Type
! Description
!Description
! Scope
!Notes
! Notes
! MP1
! MP2
! MP3
! DKCR
! DKCTF
|-
|-
|<code>ZERY</code>
{{ParticlePropertyRow|LIFE|IntElement|Particle System Lifetime|System Init|Count of frames to emit new particle instances|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|
{{ParticlePropertyRow|SLIF|IntElement|Segment Lifetime|Particle Creation|Count of frames for newly generated instance to last|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|<code>bool</code>
{{ParticlePropertyRow|GRAT|RealElement|Generation Rate|System Update|Count of particles to generate per frame; remainder is accumulated across updates|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|
{{ParticlePropertyRow|SCNT|IntElement|Instance Count|System Init|Maximum count of particle instances and child generators for system|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|
{{ParticlePropertyRow|SSEG|IntElement|Segment Count|System Init|Maximum count of line segments per instance|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|-
{{ParticlePropertyRow|COLR|ColorElement|Swoosh Color|Particle Creation and Update|Modulation color evaluated for swoosh-based instances|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|<code>EPSM</code>
{{ParticlePropertyRow|IEMT|EmitterElement|Initial Emitter|Particle Creation|Position source for instance start-point; Velocity is used to form beziér points to curve instance|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|
{{ParticlePropertyRow|FEMT|EmitterElement|Final Emitter|Particle Creation|Position source for instance end-point; Velocity is used to form beziér points to curve instance|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|<code>int</code> ([[PART (File Format)|PART]] ref)
{{ParticlePropertyRow|AMPL|RealElement|Length Amplitude|Particle Creation|Randomized coefficient of fractal displacement as product of segment count|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|
{{ParticlePropertyRow|AMPD|RealElement|Direct Amplitude|Particle Creation|Separately randomized coefficient of fractal displacement|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|
{{ParticlePropertyRow|LWD1|RealElement|Line Width 1|Particle Creation and Update|Enables line 1 (overdrawn with same verts) and specifies its width in 480p pixels|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|-
{{ParticlePropertyRow|LWD2|RealElement|Line Width 2|Particle Creation and Update|Enables line 2 (overdrawn with same verts) and specifies its width in 480p pixels|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|<code>LCLn</code>
{{ParticlePropertyRow|LWD3|RealElement|Line Width 3|Particle Creation and Update|Enables line 3 (overdrawn with same verts) and specifies its width in 480p pixels|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|
{{ParticlePropertyRow|LCL1|ColorElement|Line Color 1|Particle Creation and Update|Specifies line 1's color|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|<code>float4</code>
{{ParticlePropertyRow|LCL2|ColorElement|Line Color 1|Particle Creation and Update|Specifies line 2's color|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|Something n:[1-3]
{{ParticlePropertyRow|LCL3|ColorElement|Line Color 1|Particle Creation and Update|Specifies line 3's color|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|
{{ParticlePropertyRow|SSWH|[[SWHC (File Format)|SWHC]]|Child Swoosh|System Init|Use swoosh system to draw effect; computed fractal points are set into swoosh's history; Omitting LWD* properties will only draw the swoosh|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|-
{{ParticlePropertyRow|GPSM|[[PART (File Format)|PART]]|Start Child Particle|System Init|Draw particle system positioned at instance's start-point|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|<code>LWDn</code>
{{ParticlePropertyRow|EPSM|[[PART (File Format)|PART]]|End Child Particle|System Init|Draw particle system positioned at instance's end-point|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|
{{ParticlePropertyRow|ZERY|bool|Zero Y|Particle Creation|Zero Y component of newly created particle vertices|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}}
|<code>float</code>
|}
|Something n:[1-3]
|
|-
|<code>GPSM</code>
|
|<code>int</code> ([[PART (File Format)|PART]] ref)
|
|
|-
|<code>SSWH</code>
|
|<code>int</code> ([[SWHC (File Format)|SWHC]] ref)
|
|
|-
|<code>AMPD</code>
|
|<code>float</code>
|
|
|-
|<code>AMPL</code>
|
|<code>float</code>
|
|
|-
|<code>FEMT</code>
|
|<code>SEMR</code>, <code>SPHE</code>
|
|
|-
|<code>IEMT</code>
|
|<code>SEMR</code>, <code>SPHE</code>
|
|
|-
|<code>COLR</code>
|
|<code>float4</code>
|
|
|-
|<code>SSEG</code>
|
|<code>int</code>
|
|
|-
|<code>SCNT</code>
|
|<code>int</code>
|
|
|-
|<code>GRAT</code>
|
|<code>float</code>
|
|
|-
|<code>SLIF</code>
|
|<code>int</code>
|
|
|-
|<code>LIFE</code>
|
|<code>int</code>
|
|


[[Category:File Formats]]
[[Category:File Formats]]
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