Strange multiply blend mode behavior.

Hi,
i am working on a project and i am surprised to find a strange multiply blend mode behavior.
When i open a new blank document to try again the multiply behavior, all seems to work well.
Is it possible that the document i am working on became corrupted ?
I work on a 2012 Macbook Pro Retina 15", Mac OS X 10.8.5 and Photoshop CC 14.1.2.
This is what i see :
- Normal blen mode.
- Multiply blend mode.
Thank you for the help
Regards.

Ok, i found the solution by chance but it raises new questions.
I stayed on the same document (because i thought that it could be corrupted) but made all the layers invisibles.
I created a first Color Fill layer filled with 50% grey (as background) and just above an other Color Fill layer filled with white (as white paint).
So i masked all the white color fill layer and just made 2 stokes.
In normal mode, i got this which is normal.
So, i chose the multiply blend mode and got this (which is again normal).
P.S. : i am writing the end of the post in a second post because i am having problem to post screenshot...

Similar Messages

Strange multiply blend behavior

Hello everyone,
i'm working in illustrator creating two red square shape. I put each shap in a different layer and they slightly overlap. When i put blending mode in multiply on the top layer i would expect that the intersection become darker (as it does in photoshop). Instead the intersction remains of the same square colors.
What am i doing wrong?
Thanks

Hi Jacob,
thanks for the answer: that helped me to sort it out.
Multiply works on the channel values of each pixels: the problem was, i took a perfectly RGB Red (so in float 1,0,0). the multiply multiplies 1 (first square) by 1 (second square) obtaining... 1! The same happens in CMYK if you took a perfect color like C or Y. When you mix up the color adding some of other channel the multiply begin to change.
Tested both in illustrator and photoshop.
Thanks!

Layered image with blending mode won't display properly in Indesign CS3

Hello,
I'm having trouble placing a layered psd and/or tiff with blending modes into my indesign cs3 document. Basically I have a flattened image with a shadow on a white background. I've had to doctor the image a bit in photoshop and I've used the multiply blending mode to remove the white background. (I'm trying to get around having to clip the image and having to recreate the shadow). Anyone know how I can drop my layered image into indesign and have it keep the blending modes I've applied in photoshop?
Any help would be much appreciated.

I'll try and do my best to describe what it is I'm doing.
I've started out with a “flat” image of a product on a white background with a shadow on it. I need to make the background transparent and so that all I’m left with is the product with the shadow on a transparent background.I want to be able to place this image over another image in indesign and have the background remain transparent.
On the first layer I have a clipped out version of the product with no background (All by itself with no background or shadow). On the second layer I have the original “flat” image with the shadow and white background. On this layer I’ve used the multiply blending mode to remove the white background.
Now that I have the product on one layer by itself and the product and shadow on layer two with the multiply blending mode I have an image of the product with a shadow with no background. When I place this into indesign, my image shows up with the white background as if the multiply blending mode isn’t applied.
I’ve tried this on other images. It doesn’t appear that it lets you bring an image over with that blending mode. It's like I'd have to bring over a clipped image and then place that on top of my original image with a blending mode placed on it "in" Indesign.
Hope that make sense?

How to Apply adjustment layers to multiple layers that have different blending modes ...

How to Apply adjustment layers to multiple layers that have different blending modes and keep the colours the same as the adjusment done?
I work in Animation painting Backgrounds. My files are sometimes upwards to 200+ layers.
I will use adjustment layers to quickly balance colours and constrast on top of those many many layers.
The only way that I know of how to apply adjustment layers it to every single layer ( by applying I mean I need to get rid of the adjustment layers because we cant use them in production but i need the new colours be applied to all layers underneath ) in a psd is to manually do it By duplicating the adjusment layer 200+ times and then merging each layer to one of those adjustment layers so that that layer can take the adjustment layers effect permanently.
The issue is that Within Those 200 layers I have some layers set to Multiply or OVERLAY.    IT obviously wont apply the adjustment layer properly to those layers because those layer blend mode affect the layers under them. The colour wont be the same anymore in the spots that had the multiply blended mode.
HEres an example of a simple File. to show what i mean.
https://dl.dropboxusercontent.com/u/3408266/ball%20layers.jpg
https://dl.dropboxusercontent.com/u/3408266/ball.psd
I have 2 adjustment layers up top. I need to get rid of them by applying them to each layer! I cannot merge any of the layers. We need all those layers for production.
I can apply the adjustment layers manually and this works GREAT for all Layers set to normal. THey take on the colour change just FINE.
However, The issue is that layer 6 and layer 4 are both set to mutiply and this screws up the colour once i apply the adjustment layers to each layer manually...
How can i apply my adjustment layers to a file like this with some layers being set to multiply while keeping the layers exactly the same configuration and The new colour taking efffect exactly how i looks before i apply the adjustment layers?
Now the simple solution is to merge the multiply layers to the layer that it affects HOWEVER I NEED those multiply layers to be seperate!
I'm assuming what I want to do is impossible? Hope this isnt confusing. As far as i know its impossible to do what I want it to do. but just wanted to ask and see.
I would REALLY REALLY love to talk to a adobe programmer/ technician/pro working at adobe about this. Theres just no way to get in touch with anyone... =(
any thoughts ?

Sure... if you want to put it that way. Either way its not the desirable outcome.
its just frustrating that theres no way to apply adjustment layers to hundreds of layers while keeping them in the same configuration ( blendmodes, layer order , without merging) while keeping the same end result.
works great if all your layers are set to normal though..    But I really need to keep shadow layers seperately and be able to adjust on the fly aswell as apply those adjusment to all my layers.
I suppose that just isnt possible.   I understand the math required for this would be tremendous/ complicated if something like this would ever be implemented. Would be nice if adobe could come up with some solution to this. Its really a huge issue in my work flow and theres no alternatives.    How else can I adjust colours to 100+ layers with a few clicks that lets me play around the the adjustment until im happy with the outcome.    Really wish i could adjust and the quickly apply that adjustment to all my layers regardless of blend mode.   LIke If the Layers with blendmode could somehow take the properties of the adjustment layer and keep adjusting those layers undereathe on top of that blended mode that its doing...

Pixel Bender custom multiply blend and other questions

I am creating photo editing application on iPad and i am using Pixel Bender to calculate effects. But ive got a problem with multiply blend mode.When i run it in CPU/GPU mode, it runs fine(result looks absolutly 1:1 as from photoshop). But when i switch to Flash Player mode, it dont want to render properly. I dont get any compilation errors. Ive got also some other questions:
1.How does PB performs on iOS ?
2.If my problem is becouse of incapability of FP, is there any other solution to this ? I cant afford AS3.0 computing, becouse it is really slow even on PC.
3. Can be Pixel Bender 3D sollution to this ? If yes, when will it come out to iOS ?
4. How are filters computed in FP ? CPU or GPU ?
here, you can see the difference : http://ponozka.php5.cz/gpuMode.jpg http://ponozka.php5.cz/flashMode.jpg
Thanks
source code :
<languageVersion : 1.0;>
kernel MultiplyLayer
<   namespace : "Your Namespace";
    vendor : "Richard Molnar";
    version : 1;
>
    input image4 src;
    input image4 layer;
    output pixel4 dst;
    parameter float4 param <
        minValue:float4(0.0,0.0,0.0,0.0);
        maxValue:float4(1.0,1.0,1.0,1.0);
        defaultValue:float4(1.0,1.0,1.0,1.0);
    >;
    void
    evaluatePixel()
        pixel4 pix;
        pixel4 pix2;
        pix = sampleNearest(src,outCoord());
        pix2 = sampleNearest(layer,outCoord());
        dst.r = pix.r - pix.r * (1.0-(pix2.r))*param.r*pix2.a*param.a;
        dst.g = pix.g- pix.g * (1.0-(pix2.g))*param.g*pix2.a*param.a;
        dst.b = pix.b -pix.b * (1.0-(pix2.b))*param.b*pix2.a*param.a;
        dst.a = 1.0;

Ok, so i already know, that CPU/GPU and flash are giving different results. So lets have a situation, where you need to display transparent image without transparency. On GPU/CPU, you will need only this :
dst.r = src.r;
dst.g = src.g;
dst.b = src.b;
dst.a = 1.0;
but for flash, you will need this :
dst.r = (1.0/src.a)*src.r;
dst.g = (1.0/src.a)*src.g;
dst.b = (1.0/src.a)*src.b;
dst.a = 1.0;
First kernel on GPU will show the exact same result as second kernel on flash. But the question remains : is it bug ?

{PC CC2014} Blending modes REFUSES to export

Hi there,
I'm not exactly the strongest when it comes to Illustrator, so hopefully this isn't some stupid preference issue on my part, but...
I'm having an issue with my blending modes. Basically I have 3 stars, larger to smaller, top to bottom. I have a simple shape with 67% gray in multiply mode to create a "Texas Star" effect. The issue, is that when I go to export this file to ANY format, or I copy and paste it out, that 67% gray shape just sits on top. It refuses to go anywhere. I've tried expanding, even rasterizing (though that gives the SAME error). Nothing seems to work.
I don't know what I'm doing wrong, but I know that I'm not extremely strong in illustrator (I can just hack my way through it). Perhaps someone else might know of how to fix this issue. Yes, I know I can copy and paste, then copy and paste the blend mode in PS and re export, even live trace if necessary, BUT I'm trying to figure this issue out. I REFUSE to do that for all my blend modes FOREVER. Something I wrong, I just don't know what.
Thank you very much,
-David A. Turner

https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-xfa1/t1.0-9/10563173_10152595627323524_5 65109011631487628_n.jpg
So it's VERY complicated, lots of crap all over. Like I said, I'm not very good at illustrator, just good enough to bludgeon my way through like two virgins on wedding night.
That said, I don't know if you can see it or not, but on the top and bottom row, are stars.
So I created a star with a layer atop it that had the multiply for the seen effect, duplicated it, made the duplicate a color variation, and did a blend. Expanded them, grouped them.
Now, whenever I try to export this in ANY way, it has problems. When I have a multiply blend mode, and I try ANY method to export it (other than screen capture), it comes out like this:
Notice how the stars just have that gray block in front of them. That's the problem. This does not seem to happen in other files, just on this one. What might I be missing?
PS, Just starting to work for the client, just making quick short changes, if anyone sees anything to change real quick, let me know, please. I'll gladly take other advice as well.
-David Turner

BUG: Channel-based blend modes in FW CS5 & CS6

I've observed problems with some of the blend modes in Fireworks CS5 and CS6. Several are definitely broken—most likely a by-product of changes introduced in CS5, which attempted to match some of Photoshop's blend mode behaviors (for Hue, Saturation, Color and Luminosity).
http://www.adobe.com/devnet/logged_in/bbowman_fwcs5.html
The broken blend modes are the channel-based blend modes: Red, Green, and Blue. These have no counterpart in Photoshop, and yet no longer function properly.
To illustrate the problem, I've created a simple test graphic: three white squares, three black squares, three bitmaps, and three colored squares (red, green, and blue).
Now I'll add a black background to the canvas and apply a different channel-based blend mode—Red, Green, and Blue—to each object in its respective group. Here's the correct result, in Fireworks 8:
As you can see, each object appears to be the same color as its applied blend mode. A white rectangle with a Red blend mode becomes red, with a Green blend mode becomes green, and with a Blue blend mode becomes blue.
The way it works is this: The composite image adopts the selected channel of the object and combines it with the remaining channels of the canvas (or objects) below. For example, consider the white rectangle with a Red blend mode. The rectangle's Red channel (R:255) should be combined with the remaining channels of the canvas below (G:0,B:0) to create a composite with the appearance of red (R:255,G:0,B:0).
Now here's the same graphic as it appears in both Fireworks CS5 and CS6:
As you can see, there's no sense to this result. The Red blend mode produces Green, the Green blend mode produces Red, and the Blue blend mode produces invisibility. I simply cannot explain the outcome. These blend modes have been rendered useless and unintelligible in CS5 and CS6.
The reason for my concern here is that, just over a year ago, I wrote a series of command scripts based on these blend modes as they existed Fireworks 8. Without these blend modes, my scripts cannot function.
Assuming there are updates forthcoming for Fireworks CS6, I'm hoping there's a chance that this might still be fixed (if not for CS5, as well). Here's the bug report I've submitted regarding this issue:
Product name: Fireworks
Product Version: 11.1.0.205 (CS5.1)/12.0.0.236 (CS6)
Product Language: English
Your operating system: OS 10.6.8
******BUG******
Concise problem statement: Channel-based blend modes (Red, Green, and Blue) are broken in Fireworks CS6 and CS5.
Steps to reproduce bug:
1. Set canvas to black.
2. Draw 3 white rectangles of any size.
3. Set blend mode of 1st rectangle to Red, 2nd rectangle to Green, 3rd rectangle to Blue.
Results: 1st rectangle appears Green (instead of Red). 2nd rectangle appears Red (instead of Green). 3rd rectangle becomes invisible (instead of Blue).
Expected results: Each rectangle should appear to be the same color as its applied blend mode, as the composite adopts the selected channel of the object and combines it with the remaining channels of the canvas (or objects) below.
In the preceding example, the black canvas contains no channel information (R:0,G:0,B:0) while the white rectangles contain information in all 3 channels (R:255,G:255,B:255). When a Red blend mode is applied to a white rectangle, the object's Red channel (R:255) should be combined with the remaining channels of the canvas below (G:0,B:0) to create a composite with the appearance of red (R:255,G:0,B:0).
Most likely, this bug was introduced in CS5, which included modifications to Hue, Saturation, Color and Luminosity blend modes (to match Photoshop). For comparison, proper RGB blend mode behavior was observed in Fireworks 8.
For more information about this bug, please see the following post: http://forums.adobe.com/thread/1209542

I haven't noticed changes in the way the blend modes work.
It's possible you have a specific problem on your system, or you have an image with a color space that uses a different gamma than you're used to working in. In the latter case, the math could be the same but if the representation of the colors is changed (which is what the color profile defines) you could get a radically different looking result.
Maybe it would be useful to post some screen grabs, and ideally it would be great if you could post a copy of a PSD file that demonstrates the problem (i.e., looks different when opened in an older version of Photoshop than in Photoshop CS6).
EDIT: Looks like I was too late in answering; I was distracted after typing and before posting.
-Noel

Combine by Blend Mode?

I have a tedious production task I'd love help automating.
I receive layouts with mutliple layers of product shots (with transparency) in Normal blend mode. Most of those layers also have separate shadow layers in Multiply blend mode. (Sometimes these layers have masks, othertimes not.) Depending on how the file was built, product layers might be in proximity of their shadow layers, or they may not, making organization and contraction challenging.
(In case it matters, sometimes all layers (products and shadows) are housed inside a single group, sometimes there are no groups at all.)
Ultimately, I'd like to merge all the Product layers into one Normal mode layer, and all the Shadow layers into one Multiply mode layer (with masks applied), with the two layers linked to each other.
Can layers be identified and merged according to blend modes?

This might work.
But this disregards possible masks on groups and just moves the Multiply artLayers into one group and all others into another.
// move all artlayers set to multiply and all other artlayers into two layersets and then merge those;
// 2011; use it at your own risk;
#target photoshop;
if (app.documents.length > 0) {
var myDocument = app.activeDocument;
var artLayers = collectLayers(myDocument);
var multiplyGroup = myDocument.layerSets.add();
multiplyGroup.name = "multiply";
multiplyGroup.blendMode = BlendMode.MULTIPLY;
var normalGroup = myDocument.layerSets.add();
normalGroup.name = "normal";
for (var m = 0; m < artLayers.length; m++) {
     var thisLayer = artLayers[m];
     if (thisLayer.blendMode == BlendMode.MULTIPLY) {
          thisLayer.move(multiplyGroup, ElementPlacement.PLACEATBEGINNING)
     else {
          thisLayer.move(normalGroup, ElementPlacement.PLACEATBEGINNING)
normalGroup.merge();
multiplyGroup.merge();
////// function collect all layers //////
function collectLayers (theParent) {
     if (!allLayers) {
          var allLayers = new Array}
     else {};
     for (var m = theParent.layers.length - 1; m >= 0;m--) {
          var theLayer = theParent.layers[m];
// apply the function to layersets;
          if (theLayer.typename == "ArtLayer") {
// exclude background layer;
               if (theLayer.isBackgroundLayer == false) {
                    allLayers.push(theLayer)
          else {
               allLayers = allLayers.concat(collectLayers(theLayer))
// this line includes the layer groups;
//               allLayers.push(theLayer);
     return allLayers

Layer blend mode doesn't show in export

Hi,
I am trying to export a composition from After Effects CC, I am using a Multiply blending mode in most of my layers to give it a better look.
When previewing in after effects it looks as I want it too look but when I add to AME and export it to youtube and vimeo the Multiply blending mode does not work and it shows the composition as if all the layers had NORMAL blending mode.
How can I fix this?
Thanks a lot!

Render a normal Image sequence or Quicktime clip directly from AE and convert it in AME, which would be smarter, anyway.
Mylenium

Layer Blend mode won't show in Export?

Hi there,
I'm trying to export a composition and one of the layers has the "Multiply" blend mode applied. It looks great in the composition, but when I export it and bring it into Premiere, the layer seems to revert to a "Normal" blend mode (Its a gray bar, so It looks drastically different when the multiply blend is active).
I am using RGB+ Alpha, Apple Prores 4444. Is there a setting I can change or some way to fix this? Thanks.

Are you rendering the entire shot including the layer below your gray bar? You may be having gamma issues with Prores. You haven't given enough details to know exactly what's going on, but my first guess is a gamma issue. Try exporting an image sequence or just render animation uncompressed or uncompressed with Alpha if you need the alpha channel in Premiere.
If you are expecting the multiply blend mode in the gray bar to multiply with a layer below your rendered footage in a Premier sequence, that's not going to happen.

Blending Modes in Photoshop CS2

I have 3 images all associated with each other. Image 'A' is made from images 'B' and 'C'. The three images were actually rendered in 3DS MAX as elements.
So in photoshop image 'B' multiply(blend mode) image 'C' = image 'A' then
image 'A' divide(blend mode) image 'B' = image 'C'.
Is blend mode 'multiply' actually multiply? Which blend mode represents dividie?
Thanks in advance.

Maybe overlay or screen would be closer to what you want.
If you would like to see how the blend modes work. Create a layer with black, 50% grey, and white on it. Duplicate the layer and invert it. This will flip the colors the opposite direction. Now with the top layer selected try the multiple, overlay and screen modes. While your at it go through the rest. On a PC when one blend mode has been selected you can use the up and down arrow keys to scroll through the modes.

Blending Mode Inside Composition

I have CS4 AE. I imported a layered PSD file which brought in all my layers, in addition to automatically making a composition out of all the layer groups. So far so good. However, why is my multiply blend mode on one of the many layers not honored when inside of these group layer compositions? When I open up the composition itself with all the individual layers, the multiply blend mode is indeed assigned.
If I put into the timeline just the individual layer with the multiply, it works. It doesn't when inside of those automatic group layer comps.
Can anyone shed some light?
Thanks!

>However, why is my multiply blend mode on one of the many layers not
>honored when inside of these group layer compositions?
Because AE is not Photoshop! Just like Andrew said, you need to tell AE to pass through blending modes. The principle is simply reversed - in AE you turn this off when you tweak the group blend properties, in AE you need to explicitly turn it on.
Mylenium

Has anyone ever encountered layer blend modes behaving strangely?

I use photoshop quite a bit for retouching and photo compositing. Tonight I encountered a strange problem. I was trying to create a vintage look on a photo and had a number of adjustment layers including a curves, levels, color fill and there were also a few texture/noise layers all set to varying opacities. Near the top of all this I had a vignette layer that was black around the edges and white in the center set to blend mode of multiply. Well, when I was clicking on and off I realize that that vignette layer was definitely lightening the center part of the overall image quite a bit (the part that is white on the vignette layer), almost like a screen. So I flipped the vignette layer through different opacity modes and saw that there was no change in its behavior, every mode was screening the white, even darker color and multiply. I thought maybe it was interacting in a weird way with one of the other layers so I turned all the others off except the back ground-- still no change. Then I dropped the layer down one at time until it was below the background. When I started to move it up again, it was behaving normally for a moment until I moved it up a couple levels in the stacking order and then it went back to the screen behavior. Anyway I shuffled it around a bit but there was no consitency to when it would display the correct opacity and when it wouldn't, so it did not seem to be an interaction with any specific layer. I don't know, but I can't really think of any case where white set to multiply should produce a lighter result even if it were interacting with another opacity. In any case it does seem to me that there is something going on with the overall computation of opacities. I tried creating a new black and white layer and it was also doing the same thing, behaving strange and not displaying the correct opacity.
I'm tired, so I'm going to bed. I'm going to shut off the computer and hope this goes away when I reboot, but if it does not, does this sound familiar to anyone? I'm not a regular visitor to this forum, but I thought I'd put it out there in case anyone else has experienced anything like this. I've only got 5 gigs of ram on this computer and I've been working away for a while... maybe photoshop just couldn't keep up(?) I'm using Photoshop CS5, RGB Adobe 1998 colorspace. I've never had anything like this happen in the last 11 years I've been using photoshop. Hmmm.... hope I don't have to reinstall or call support or worse. fingers crossed.

Nevermind. It is still having the problem. I have to think that this file is just corrupt somehow because I just opened another file and can't seem to cause the same problem. Basically, I can fill a layer with white, put it to a blend mode of multiply or darker color and it will block out everything of the image below, ie totally opaque. The opaqueness varies depending on the if there are other layers also on blend modes, but it does not seem to correspond to normal blend mode interaction. If I put it right on top of a regular layer with an image on it, it totally blocks it out on a blend mode of multiply... weird. I am going to scrap this file and see if the problem recurs in other files. My 2006 Mac Pro is getting some years on it and has been running pretty slow. I'm not a hardware expert but I've done everything I know how to do to maintain it. Was thinking of upping the ram to see if I can hold out a bit longer before I upgrade the computer. Wouldn't surprise me if this problem is related to the computer.

Blending Mode (Multiply) Not Working

Hello, I am working with CS6. I am attempting to add shadow to my text, which is a simple enough process. However, it doesn't appear as though my blending modes are working. Putting it on as a Multiply doesn't do anything to the solid shadow catcher. I have seen in the forum that some have had luck by changing the solid color, but this does not work for me. Any help would be greatly appreciated. Thanks!

Sorry if I am not clear.
It is in classic 3D. The solid plane has Material Options as such: Casts Shadows>off, Accepts Shadows>On, Accepts Lights>Off (and On, no difference). My text is set to cast shadows, Accept Lights>Off.
As far as layers, I have only my Shadow Catch plane, the text, my clip, one camera. Ordered from top: Light, Shadow Catcher, Text, Clip.
I am new to the forum, so if I can provide any more information that would be helpful to you, please let me know.

HELP: Script to find: blending mode: Multiply

Hi all,
Trying to find of write a script that searches an Indesign CS4 document for anything set to blending mode multiply.
Cant find anything on google..... Please help
Thank you in advance
Shot8

Hi.
try code below.
I think it is unnecessary to select the objects
var graphics = app.activeWindow.activePage.allGraphics;
app.select(graphics); //=> undefined. because select method return undefined
// apply filter to each graphic
var i = graphics.length;
while (i--) {
graphics[i].transparencySettings.blendingSettings.blendMode = BlendMode.MULTIPLY;
thank you
mg.

Strange multiply blend mode behavior.

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