hey again i have finished my (very) basic particle engine and am now in the design stage of my full system i have a first draft of features but just want to double check that i have all the essentials so if you think something is missing or needs to be changed please let me know or if you want to suggest a cool feature not already on there ..thats good too • Particle Grouping o Group Sizes o Rotation around centre o Attraction and repulsion within the group • Alpha Blending o Variable blending types • Variable emission rates o Emission rates that change over time o Emission to max particles o Emission to time limit • Variable particle sizes o Particles sizes that change over time o Different particles sizes for each particle o Random particle sizes within a range • Variable particle colours o Colour Cycle o Colour Change while running(on function call) o Colour change over time • Emission Patches o Particles emitted from lines, line strips and points o Particles emitted randomly from within a polygon  Possibly point weighting o Transformation of patches  On the fly and set pre-calculated transformations o Morphing  Morphing of individual points within the patch • Emission control o Emit towards a point o Emit away from a point o Emit in a direction o Emission flight paths  Possibly variable flight paths  Possibly Flight path cycle  Possibly Flight path change on the fly  Possibly emission flight path equation plug-ins • Velocity inheritance o Adjustable Percentage of velocity inheritance • Variable velocity and inheritance rates • Burst emission • Particle ribbons • Positional adjustments o Set up areas around the system that change the properties of the particles when they pass through it o Multiple areas o Multiple changes per area • Particles textures o Texture animations o Texture transformation o Decals o Support for shaders(height maps mainly) • Particles types o Quads, triangles , custom etc… • Constant systems • Particle attributes o Individual attraction/repulsion o Inter-particle collision detection • Pluggable or overridable control of particle movement o example sinusoidal motion or even AI • Pluggable or overridable particle renderer o a classic renderer might render each particle as a sprite or a geometry instance, another renderer might draw lines between particles for a lightening or web effect, another renderer might distort a nice blue shaded geometry-grid based on particle positions for a water effect. • Super emission(particles emitting particles) Thank You a lot of there were suggested in a previous thread so credit to original sugesters and not to me

bump for double checking

Hehe I remember this [smile]

Just an idea but how about conceptually...

Particle Emitter
• Emission Patches
o Particles emitted from lines, line strips and points
o Particles emitted randomly from within a polygon
 Possibly point weighting
o Transformation of patches
 On the fly and set pre-calculated transformations
o Morphing
 Morphing of individual points within the patch

• Emission control
o Emit towards a point
o Emit away from a point
o Emit in a direction
o Emission flight paths
 Possibly variable flight paths
 Possibly Flight path cycle
 Possibly Flight path change on the fly
 Possibly emission flight path equation plug-ins

• Variable emission rates
o Emission rates that change over time
o Emission to max particles
o Emission to time limit

• Velocity inheritance
o Adjustable Percentage of velocity inheritance

• Variable velocity and inheritance rates

• Burst emission


Particle Controller
• Particle Grouping
o Group Sizes
o Rotation around centre
o Attraction and repulsion within the group

• Variable particle sizes
o Particles sizes that change over time
o Different particles sizes for each particle
o Random particle sizes within a range

• Variable particle colours
o Colour Cycle
o Colour Change while running(on function call)
o Colour change over time

• Positional adjustments
o Set up areas around the system that change the properties of the particles when they pass through it
o Multiple areas
o Multiple changes per area

• Constant systems

• Particle attributes
o Individual attraction/repulsion
o Inter-particle collision detection

• Pluggable or overridable control of particle movement
o example sinusoidal motion or even AI

• Super emission(particles emitting particles)


Particle Renderer
• Alpha Blending
o Variable blending types

• Particle ribbons

• Particles textures
o Texture animations
o Texture transformation
o Decals
o Support for shaders(height maps mainly)

• Particles types
o Quads, triangles , custom etc…

• Pluggable or overridable particle renderer
o a classic renderer might render each particle as a sprite or a geometry instance, another renderer might draw lines between particles for a lightening or web effect, another renderer might distort a nice blue shaded geometry-grid based on particle positions for a water effect.


Particle System
• References a ParticleEmitter, ParticleController and ParticleRenderer
• Could be responsible for storing the particles?
• Mediates particles between the above 3 classes.

aha...hello again

funnily enough i had just grouped them but looking at it yours makes more sense :)

thanks

Instead of drawing a pixel, draw a quad. In 2D its as simple as that, in 3D you probably want to transform each quad to face the camera.