Graphics program to display particles slowly drifting upwards

Introduced properties

init defaultinit

gamnit :: SmokeProgram :: defaultinit

Redefined properties

redef type SELF: SmokeProgram

gamnit $ SmokeProgram :: SELF

Type of this instance, automatically specialized in every class

redef fun vertex_shader_core: String

gamnit $ SmokeProgram :: vertex_shader_core

Core GLSL code for vertex_shader_source

All properties

fun !=(other: nullable Object): Bool

core :: Object :: !=

Have self and other different values?

fun ==(other: nullable Object): Bool

core :: Object :: ==

Have self and other the same value?

type CLASS: Class[SELF]

core :: Object :: CLASS

The type of the class of self.

type SELF: Object

core :: Object :: SELF

Type of this instance, automatically specialized in every class

fun attributes: AttributeMap

gamnit :: GamnitProgram :: attributes

Attributes of this program organized by name

protected fun attributes=(attributes: AttributeMap)

gamnit :: GamnitProgram :: attributes=

Attributes of this program organized by name

fun center: AttributeVec4

gamnit :: ParticleProgram :: center

Coordinates of particle effects

protected fun center=(center: AttributeVec4)

gamnit :: ParticleProgram :: center=

Coordinates of particle effects

protected fun class_factory(name: String): CLASS

core :: Object :: class_factory

Implementation used by get_class to create the specific class.

fun class_name: String

core :: Object :: class_name

The class name of the object.

fun color: AttributeVec4

gamnit :: ParticleProgram :: color

Color tint per vertex

protected fun color=(color: AttributeVec4)

gamnit :: ParticleProgram :: color=

Color tint per vertex

fun compile_and_link

gamnit :: GamnitProgram :: compile_and_link

Compile the shaders, and this program, then link and report any errors

init defaultinit

gamnit :: SmokeProgram :: defaultinit

init defaultinit

gamnit :: ParticleProgram :: defaultinit

init defaultinit

gamnit :: GamnitProgramFromSource :: defaultinit

init defaultinit

gamnit :: GamnitProgram :: defaultinit

init defaultinit

core :: Object :: defaultinit

fun delete

gamnit :: GamnitProgram :: delete

Delete this program if it has not already been deleted

fun deleted: Bool

gamnit :: GamnitProgram :: deleted

Has this program been deleted?

protected fun deleted=(deleted: Bool)

gamnit :: GamnitProgram :: deleted=

Has this program been deleted?

fun diagnose

gamnit :: GamnitProgram :: diagnose

Diagnose possible problems with the shaders of the program

fun error: nullable Error

gamnit :: GamnitProgram :: error

Last error raised by compile_and_link

protected fun error=(error: nullable Error)

gamnit :: GamnitProgram :: error=

Last error raised by compile_and_link

abstract fun fragment_shader: FragmentShader

gamnit :: GamnitProgram :: fragment_shader

Fragment shader to attach to this program

protected fun fragment_shader=(fragment_shader: FragmentShader)

gamnit :: GamnitProgramFromSource :: fragment_shader=

abstract fun fragment_shader_source: Text

gamnit :: GamnitProgramFromSource :: fragment_shader_source

Source code of the fragment shader

protected fun fragment_shader_source=(fragment_shader_source: Text)

gamnit :: ParticleProgram :: fragment_shader_source=

fun get_class: CLASS

core :: Object :: get_class

The meta-object representing the dynamic type of self.

fun hash: Int

core :: Object :: hash

The hash code of the object.

init init

core :: Object :: init

fun inspect: String

core :: Object :: inspect

Developer readable representation of self.

protected fun inspect_head: String

core :: Object :: inspect_head

Return "CLASSNAME:#OBJECTID".

intern fun is_same_instance(other: nullable Object): Bool

core :: Object :: is_same_instance

Return true if self and other are the same instance (i.e. same identity).

fun is_same_serialized(other: nullable Object): Bool

core :: Object :: is_same_serialized

Is self the same as other in a serialization context?

intern fun is_same_type(other: Object): Bool

core :: Object :: is_same_type

Return true if self and other have the same dynamic type.

fun mvp: UniformMat4

gamnit :: ParticleProgram :: mvp

Model view projection matrix

protected fun mvp=(mvp: UniformMat4)

gamnit :: ParticleProgram :: mvp=

Model view projection matrix

intern fun object_id: Int

core :: Object :: object_id

An internal hash code for the object based on its identity.

fun ot: AttributeFloat

gamnit :: ParticleProgram :: ot

Creation time of each particle

protected fun ot=(ot: AttributeFloat)

gamnit :: ParticleProgram :: ot=

Creation time of each particle

fun output

core :: Object :: output

Display self on stdout (debug only).

intern fun output_class_name

core :: Object :: output_class_name

Display class name on stdout (debug only).

fun scale: AttributeFloat

gamnit :: ParticleProgram :: scale

Scaling per vertex

protected fun scale=(scale: AttributeFloat)

gamnit :: ParticleProgram :: scale=

Scaling per vertex

fun serialization_hash: Int

core :: Object :: serialization_hash

Hash value use for serialization

intern fun sys: Sys

core :: Object :: sys

Return the global sys object, the only instance of the Sys class.

fun t: UniformFloat

gamnit :: ParticleProgram :: t

Current time

protected fun t=(t: UniformFloat)

gamnit :: ParticleProgram :: t=

Current time

fun texture: UniformSampler2D

gamnit :: ParticleProgram :: texture

Visible texture unit

protected fun texture=(texture: UniformSampler2D)

gamnit :: ParticleProgram :: texture=

Visible texture unit

abstract fun to_jvalue(env: JniEnv): JValue

core :: Object :: to_jvalue

fun to_s: String

core :: Object :: to_s

User readable representation of self.

fun ttl: AttributeFloat

gamnit :: ParticleProgram :: ttl

Time-to-live of each particle

protected fun ttl=(ttl: AttributeFloat)

gamnit :: ParticleProgram :: ttl=

Time-to-live of each particle

fun uniforms: UniformMap

gamnit :: GamnitProgram :: uniforms

Uniforms of this program organized by name

protected fun uniforms=(uniforms: UniformMap)

gamnit :: GamnitProgram :: uniforms=

Uniforms of this program organized by name

fun use

gamnit :: GamnitProgram :: use

Notify the GPU to use this program

fun use_texture: UniformBool

gamnit :: ParticleProgram :: use_texture

Should this program use the texture texture?

protected fun use_texture=(use_texture: UniformBool)

gamnit :: ParticleProgram :: use_texture=

Should this program use the texture texture?

abstract fun vertex_shader: VertexShader

gamnit :: GamnitProgram :: vertex_shader

Vertex shader to attach to this program

protected fun vertex_shader=(vertex_shader: VertexShader)

gamnit :: GamnitProgramFromSource :: vertex_shader=

fun vertex_shader_core: String

gamnit :: ParticleProgram :: vertex_shader_core

Core GLSL code for vertex_shader_source

abstract fun vertex_shader_source: Text

gamnit :: GamnitProgramFromSource :: vertex_shader_source

Source code of the vertex shader

protected fun vertex_shader_source=(vertex_shader_source: Text)

gamnit :: ParticleProgram :: vertex_shader_source=

Ancestors

abstract class GamnitProgram

gamnit :: GamnitProgram

Gamnit graphical program

class GamnitProgramFromSource

gamnit :: GamnitProgramFromSource

Gamnit graphical program from the shaders source code

interface Object

The root of the class hierarchy.

Parents

class ParticleProgram

gamnit :: ParticleProgram

Particle drawing program using gl_POINTS

Class definitions

gamnit $ SmokeProgram

# Graphics program to display particles slowly drifting upwards
class SmokeProgram
	super ParticleProgram

	redef fun vertex_shader_core do return """
		vec4 c = center;
		c.y += dt * 1.0;
		c.x += dt * 0.1;

		gl_Position = c * mvp;
		gl_PointSize = scale / gl_Position.z * (pt+0.1);

		if (pt < 0.1)
			v_color *= pt / 0.1;
		else
			v_color *= 1.0 - pt*0.9;
	"""
end

lib/gamnit/depth/particles.nit:317,1--334,3