Adobe AGAL Reference Card
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2011-04-02
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AGAL Reference Card
The secret language for Flash 3D
by Marco Scabia
iFLash3D
http://iFLash3D.com! ! Copyright 2011 - All Rights Reserved
AGAL OpCodes 1
memory
mov
destination = source1
move data from source1 to destination
arithmetic
add
destination = source1 + source2
add two registers, component-wise
sub
destination = source1 - source2
subract two registers, component-wise
mul
destination = source1 * source2
multiply two registers, component-wise
div
destination = source1 / source2
division betwen two registers, component-wise
rcp
destination = 1 / source1
reciprocal of one register, component-wise
frc
destination = source1 - (float)floor(source1)
fractional part of one register, component-wise
neg
destination = - source1
negation of one register, component-wise
trigonometric
sin
destination = sin(source1)
sine function of one regsiter, component-wise
cos
destination = cos(source1)
cosine function of one register, component-wise
algebraic
min
destination = min(source1, source2)
minimum between two registers, component-
wise
max
destination = max(source1, source2)
maximum between two registers, component-
wise
sqt
destination = sqrt(source1)
square root of one register, component-wise
rsq
destination = 1 / sqrt(source1)
reciprocal of square root of one register,
component-wise
pow
destination = pow(source1, source2)
elevate source1 register to the power of
source2, component-wise
log
destination = log2(source1)
base 2 logarithm of one register, component-
wise
exp
destination = 2^source1
2-based exponentional function of one register,
component-wise
nrm
destination = normalize(source1)
normalize one register to length of 1
abs
destination = abs(source1)
absolute value of one register, component-wise
sat
destination = max(min(source1,1),0)
clamp one register in the range (0,1),
component-wise
AGAL Registers
Attribute Registers
VertexBuffer input to Vertex Shaders
syntax: va<n>
quantity: 8
Vertex Shader only
Constant Registers
Pass parameters from Actionscript to Shaders
syntax
Vertex Shaders: vc<n>
Pixel Shaders: fc<n>
quantity
Vertex Shaders: 128
Pixel Shaders: 28
Temporary Registers
For use by Shaders. Temporary data
syntax
Vertex Shaders: vt<n>
Pixel Shaders: ft<n>
quantity
Vertex Shaders: 8
Pixel Shaders: 8
Varying Registers
Pass data from Vertex Shader to Pixel Shader
syntax: v<n>
quantity: 8
Texture Samplers
pick texture color value at UV coordinates
syntax: ft<n> <flag1, flag2, ...>
quantity: 8
Pixel Shader only
flags
mip mapping
mipnone
nomip
mipnearest
miplinear
texture size
2d
3d
cube
filtering
nearest
linear
texture repeat
repeat
wrap
clamp
Output Registers
Output of Shaders
Vertex: clip space position
Pixel: pixel color
syntax
Vertex Shaders: op
Pixel Shaders: oc
quantity
Vertex Shaders: 1
Pixel Shaders: 1
AGAL Overview
AGAL related Actionscript
Create Shader
Context3D::createProgram
Upload to GPU
Program3D::upload
Program3D::dispose
Enable Shader
Context3D::setProgram
Write to Constant Registers
Context3D::setProgramConstantsFromVector
Context3D::setProgramConstantsFromMatrix
Enable Texture
Context3D::setTexture
AGAL OpCode Syntax
<opcode> <destination> <source 1> <source 2
or sampler>
资源评论
wangmeng89012012-10-08不错啊，找了好久，挺清晰的，初学agal很有用- macro7762013-03-07基本上整理了一遍，不过要注意毕竟不是完整参考
- latency0292012-06-25不是很详细，适合入门的时候看看……
