shabaviz55

9th October 2003 15:28 UTC

Set render mode
I have a question:
How can I work with Set render mode?

I don't know this option how to work?
Please tell me
Thanks.

Deamon

9th October 2003 22:02 UTC

From the primer:

Global Effects: Render Blends
Render blends affect how two effect lists blend with each other, or
how a signle effect renders or changes everything else.

Ignore
Disables the effect's blending entirely

Replace
Replaces the picture entirely with the new frame

50/50 Blend
Takes the average of the two frames.

Maximum Blend
Uses the greatest amount of color between the two frames.

Additive Blend
Adds the color values of the render to the previous frame.

Subtractive Blend 1
Subtracts the previous frame from the new one

Subtractive Blend 2
Subtracts the new frame from the previous

Every Other Line
Renders every other line of the previous frame and the rest of the
lines from the new one.

Every Other Pixel
Same as Every Other Line, but in pixels

XOR
Don't know anything about what this is, but it's trippy.

Adjustable Blend
The bar is how much of the previous frame should be used in
relation to the new one (i.e., one quarter of the way down takes
25% of the previous and 75% of the new)

Multiply Blend
The end product is the new pixel's values multiplied by the previous
pixel's values divided by 256 (i.e., the percentage of the previous
pixel's values relative to white)

Buffer Blend
Blends with the specified buffer (I don't know how)
Invert
Uses the negative of the buffer

Minimum Blend
Uses the least amount of color between the two frames. I can't
remember where this is used, but it's not usable in effect lists.

So, using a previous pixel of the color
red = 62
green = 64
blue = 63
and an edited pixel of the color
red = 30
green = 32
blue = 31
this is the end product of each blend:

Ignore
red = 62
green = 64
blue = 63

Replace
red = 30
green = 32
blue = 31

50/50
red = (62 + 30) / 2 = 92 / 2 = 46
green = (64 + 32) / 2 = 96 / 2 = 48
blue = (63 + 31) / 2 = 94 / 2 = 47

Maximum
red = 62
green = 64
blue = 63

Additive
red = 62 + 30 = 92
green = 64 + 32 = 96
blue = 63 + 31 = 94

Subtractive 1
red = 30 - 62 = 0*
green = 32 - 64 = 0*
blue = 31 - 63 = 0*

Subtractive 2
red = 62 - 30 = 32
green = 64 - 32 = 32
blue = 63 - 31 = 32

XOR
Don't know

Adjustable (one quarter)
red = 30 x 0.25 + 62 x 0.75 = 7.5 + 46.5 = 54
green = 32 x 0.25 + 64 x 0.75 = 8 + 48 = 58
blue = 31 x 0.25 + 63 x 0.75 = 7.75 + 47.25 = 55

Adjustable (three quarters)
red = 30 x 0.75 + 62 x 0.25 = 22.5 + 15.5 = 38
green = 32 x 0.75 + 64 x 0.25 = 24 + 16 = 40
blue = 31 x 0.75 + 63 x 0.25 = 23.25 + 15.75 = 39

Multiply
red = 62 x (30 / 256) = 62 x 0.1171875 = 7**
green = 64 x (32 / 256) = 64 x 0.125 = 8
blue = 63 x (31 / 256) = 63 x 0.13109375 = 7**

Minimum
red = 30
green = 32
blue = 31

I left out Every Other Line/Pixel and Buffer Blend because they can't
be explained this way.



Any help is appreciated; if I'm wrong about anything (or if you know
something I don't know), e-mail me at therealatero@hotmail.com


*No negative numbers
**No fractions/decimals (truncation)

Nic01

9th October 2003 22:49 UTC

For XOR :

32/96/32

XOR ---->>> Change the values into binary, XOR the values, change them back. Very useful for special inversing using SSC...
(XOR : Exclusive OR. One but not both.)

I think.

dirkdeftly

10th October 2003 23:25 UTC

ups? did i not put that in the recent version?

Deamon

11th October 2003 08:48 UTC

I still have the oldie ;) I'm going to reinstall all my avs again (including the new primer) when I get wa5 final with the final avs version.