ELSC (File Format): Difference between revisions
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{{research| | {{research|1|Properties beyond MP1 need to be discovered and documented}} | ||
The '''ELSC''' [[ | 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. | |||
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. | |||
== 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" | {| class="wikitable" | ||
!FourCC | ! FourCC | ||
!Scope | ! 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 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}}}} | ||
| | {{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}}}} | ||
| | {{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}}}} | ||
| | |} | ||
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[[Category:File Formats]] | [[Category:File Formats]] |