ELSC (File Format): Difference between revisions
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The '''ELSC | {{research|1|Properties beyond MP1 need to be discovered and documented}} | ||
The '''ELSC''' [[Particle Script|particle script]] format is used to build electrical effects in the ''Metroid Prime'' series. | |||
Electrical effects are commonly used to dynamically draw lightning and electrical arcs. | |||
{{ | Whenever a new ''particle instance'' is generated, a [[wikipedia:Bézier curve|Bézier curve]] is subdivided into segments. | ||
The central vertices are then displaced using a [[wikipedia:Fractal|random fractal algorithm]]. | |||
The instance's color and line-width is updated over its lifetime. | |||
== Properties == | |||
Particle generator properties are assembled into a [[Particle Script|particle script]] | |||
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" | |||
! FourCC | |||
! Type | |||
! Description | |||
! Scope | |||
! Notes | |||
! MP1 | |||
! MP2 | |||
! MP3 | |||
! DKCR | |||
! DKCTF | |||
|- | |||
{{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}}}} | |||
{{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}}}} | |||
{{ParticlePropertyRow|IEMT|EmitterElement|Initial Emitter|Particle Creation|Position source for instance start-point; Velocity is used to form Bézier 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 Bézier points to curve instance|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}} | |||
{{ParticlePropertyRow|AMPL|RealElement|Length Amplitude|Particle Creation|Randomized coefficient of fractal displacement as product of recursive segment length|{{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}}}} | |||
{{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}}}} | |||
{{ParticlePropertyRow|LCL2|ColorElement|Line Color 1|Particle Creation and Update|Specifies line 2's color|{{check}}|{{nocheck}}|{{nocheck}}|{{nocheck}}|{{nocheck}}}} | |||
{{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}}}} | |||
{{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}}}} | |||
|} | |||
[[Category:File Formats]] | [[Category:File Formats]] |