3ds Max :: How To Get Alpha Image From Vray Frame Buffer
Nov 28, 2012
I'm a beginner of 3ds max. I have trouble with getting alpha image from Vray frame buffer.
My scene is very simple
-2 Objects with Vray standard material
-Vray plane
-Vray dome light
Even when I render as Tiff data, I can not see alpha image. It is all white. How to get alpha image. And also is there anything else good way to get alpha image by the each object(without using matt/shadow material)? I used 'VrayWireColor' from 'Render Elements' but the image edge has slightly white frindge...
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Mar 1, 2011
Is there a way to prevent the render window from clearing to black before rendering a new frame when using the scanline renderer? Several versions ago Max used to leave the old image up while updating and its easier for me in some cases to see changes when the previous frame is still there and updates as the scanline renders down the frame.
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Oct 4, 2011
How to render different channels with custom framebuffer. But in order to get it working there has some node need to add into the render tree.
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Jun 6, 2011
In short, I have two images open in Gimp. I need to add one the images to the alpha channel of the other image. How do I go about doing this? I was able to add an alpha channel but beyond that I am lost.
This bit will only make sense to 3D modelers. I have 3D model that I'm importing into a the Unity 3D game engine. One of the material shaders makes use of specularity maps. Normally the specularity map would reside in the alpha channel of the RGBA diffuse image, but due to file sizes, all these are released as separate jpegs. The idea is to make some parts of the 3D model more glossy as far as I know. The only way to do this is to add this specular image to the alpha channel of the diffuse image, and then the game engine can work its magic, making the skin look realistic.
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Jan 7, 2008
im trying to add an alpha layer or alpha channel to a bitmap and save in BMP format.
I am using Photoshop 6.
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Aug 19, 2008
I have 2 x *.dds files. One is a default model texture (with no alpha channel) and the other is a lightmap, which has different visible graphics to that of the texture file. However, the alpha channel of the lightmap uses the texture file detail.
My question, as I need to recreate these from scratch, how do I import an existing image to another existing image and use it as a alpha channel. So far each time i have tried the original information is overwritten.
Here's a screengrab of what I'm trying to achieve. To recap, I'm trying to use image 1 as an alpha channel in image 2 (as shown)...
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Nov 20, 2005
i have an image which has an alpha channel which allows certain parts of the image to be more transparent than others.
When you de-select RGB channel and only leave the Alpha channel selected you'll notice that the image has now turned into a black and white alpha image, where black shows complete transparency, and white shows no transparency. Is it possible to save this black and white alpha image? Incase you dont understand what im trying to do heres a picture.
I just took that pic off the net as an example of what i want (incase your wondering), so basically, all i want to know is, how do you save an image (like above) which shows the levels of transparency.
At the moment, i have to use the printscreen key on the keyboard to capture the image, which is very annoying because its extra work and if the image is larger than the screen it requires alot of aligning.
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Apr 29, 2008
I cannot find much on the web about it, how to use an alpha channel. However, none of them address this issue.
I use photoshop cs3 extended.
I am using png and tga image formats
When using an alpha channel, you can set the alpha to absolutely transparent. However, when you do and save the image it removes the other channel information on the rgb channels. This is problematic because I have to use a 1 transparency value to retain my rgb channels. This causes issues as I need the full alpha but also the texture information.
This is for texture work on a game and the engine uses the alpha channel for a team color overlay on top of the rgb image. So I need all 4 channels rgb for texture, and the alpha is a team color overlay.
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Nov 6, 2012
I'm using Xfrog trees (first time, and quite new to 3ds max design 2011).
The leaves are images laid onto planes. The leaf has a white background and is precreated to be transparent etc.....
In theory i should be able to import the tree, render and everything should work. it's not working. The tree renders with the white background to the leaves
Is there a setting i'm missing, maybe in the render setup?
AutoCAD Certified Professional
Win 7 Pro 64bit, Dell Precision M6500
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Mar 21, 2012
I have a B&W images. It's actually in RGB but all shades are gray. I would like to create an alpha channel whose values equal the brightness of each pixel. How do I do that?
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Aug 5, 2013
My task is to do a batch processing over an folder with images. I want to add an alpha layer to every image (png). The alpha layer is from a static second image (bmp).
I can accomplish the task in the GIMP front end manually, but the exactly same steps in my script aren't working.
Here's the script:
(define (script-fu-batch-alpha-add globalpha globpics) (let* ((filelist (cadr (file-glob globpics 1))) (filealpha (car(cadr (file-glob globalpha 1)))) (imgalpha (car (gimp-file-load RUN-NONINTERACTIVE
filealpha filealpha))) (drawablealpha (car (gimp-image-get-active-layer imgalpha)))
[code].......
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Jul 24, 2011
Thought I'd try Gimp on my new laptop instead of Photoshop. I'm making graphics for a game.
I needed to add an alpha channel to an image and edit it, including pasting into the alpha channel from the clipboard. Easiest thing in the world on Photoshop, but seems utterly impossible on Gimp.
I've looked at a few threads that discuss editing the alpha channel, and they make it sound like rocket science. Notable, most seem to involve juggline multiple other images and then following convoluted pasting operations to get anything down. Or using layer "Masks" which, as best I can see, are impossible to paste into (and I couldn't find how to convert these masks to alpha channels either.)
As it stands, I've failed to get anything onto an alpha channel at all, except some scribble that showed up in the tiny side icon but couldn't be seen in the main image.
I'm new to Gimp, and I'm hoping I've just missed something. What is the straight forward way to edit the alpha channel (drawing on it, pasting into it from the clipboard), and seeing the results at the same time. I've tried everything intuitive and nothing works.
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Feb 12, 2013
How do I take say the black and white version of an image and use the final grey scale value as the alpha value for that pixel on the original? Is this possible to do easily?
If not, what's the hard way?
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Jul 23, 2005
can someone tell me the easiers way to make an alpha tga file? Photoshop 7 can done alpha when i save to tga 32 bits, but in CS we have to do it manually...
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Jul 27, 2011
I have an existing (grayscale) image that I want to make into the alpha channel for another image.
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Dec 27, 2006
I've burned like 9 DVDs without issue using ulead. I'm now burning another, but have wasted 4 DVDs since I am getting a dialog, right near the end of the actual burn for:
"Data buffer underrun. The computer may be too busy with other tasks or may not have enough power to keep the specified burning speed. [534:-2147216284:0]"
All movies are about the same length (120m) and all settings are the same. My computer is a 4.6Ghz dual core AMD with 2G RAM. I'm writing to a HD with 200G free; local disk has 120G free. No other apps open.
This is the first time I've received this error; I've totally recreated a vsp project and everything, but I still get this error. I've modified so that the burn is only at 4x, which is shows is the minimum? The option to enable buffer underrun is disabled and I can't select it. I'm doing a two-pass conversion just like all my other successful burns.
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Jan 13, 2008
"An internal error occurred when overlapped buffer is full."
That is the message I am receiving when I try to make my project into a video or audio file.
I have two audio tracks which have only two effects added to them.
What is wrong?
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May 3, 2012
I am familiar with GIS but I am new to AutoCAD Map 2012.
I have 140,000 lines and 20,000 points.
I would like to have all points closer than 1 meter to a line.
This is what I tried to do:
buffer the lines (_mapfdobuffercreate)overlay points and buffer (_MapGisOverLay) to get all points in the buffer area
This works well with a small amount of data.But in step 1 I have to select all lines (140,000) with the mouse. When I try to select all lines with the mouse AutoCAD Map freezes after some minutes. Is there a way with AutoCAD to work on a “layer basis” and not on a “selection set basis”. Other GIS (ESRI, Quantum, …) work with a complete layer.
In this analysis I work with FDO Data (shp,sqlite,sdf). I have geometries, but no attribute data.
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Oct 2, 2012
simple terms the following options in the JPEG2000 dialogue box :
-Wavelet Integers and Float. Explain wavelet in idot proof terms? What is the difference between the two types of wavelets?
-Tile size. What does it refer to when it says Tile? What's a tile in this instance?
-Region of Interest. What does "controls the quality within the image by using an alpha channel" mean?
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Mar 17, 2011
I have a few images that I have saved from online that have an alpha layer in them. When I open them in GIMP, the checkerboard pattern makes it far too difficult to edit the image. When I try any of the obvious options for removing the alpha layer, the result looks awful.
How do I remove an alpha layer without changing the way that an image looks when it's viewed in an image viewer (or GIMP)?
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May 17, 2011
I was simply wondering the best means in Paint.Net to use a black and white image and use it as the alpha channel of my image, with white being opaque and black being fully transparent. I looked through the plugins on the site and didn't see anything that seemed to resemble what I was after.
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Sep 21, 2013
First time using GIMP. Following the directions here: [URL] ......
Using, "Color to Alpha," I tried to select the background of my .jpg image. The background is white, the picture (logo) portion is silver. Because of the closeness in color, when I select white, the software selects the entire image to become alpha (transparent).
When I select the color of the picture, silver, I am able to select just the logo portion. How can I take the logo portion, which is now converted to transparent, and give it a black or transparent background, and then return the logo back to its former color silver. The logo is perfect, it is just that I recently switched my site from a white header to a black header and the image has a white background, so that does not look good.
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Nov 11, 2008
using Photoshop 5.0 or 7.0
I want to have a gif animation working on a web page - and I want to put a window frame around it so it seems like you are watching the animated image through a window looking into a house. (like a window peeper)
What I need to do is take out the four window pains (or all if I have to) to make the actual pains transparent to show the gif image working.
I am not sure how I can get to superimpose the window frame image OVER the gif image.
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Sep 5, 2013
any difference between alpha layer and alpha channel? I mean has to be right? I just don't know what exactly that would be if there is. I'm trying to figure out some more stable uses for computer graphics when building textures with alpha layer or alpha channels. So far I get a flicker from opengl bug when using alphas. So I'm wondering if I use Alpha layer and something with a solid color underneath the geometry if I could achieve a more stable result where alpha sorting. Possibly clearing it up where my alpha layered geometry stays on top vs bleeding through at times it seems.
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Apr 9, 2013
I would like AMAP to perform a BUFFER operation on a certain SHP, so the resulting buffer polygons would get the table attributes from that original shape, and also be exported as a SHP.
It is mandatory that a buffer polygon will have the same attributes from the original SHP line, including its FeatID.
Is it possible?
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Jan 28, 2011
I am trying to create a 150m buffer around points from a map features that I have attached from an SDF.
If I select any amount of points to buffer I get the following error:Unable to complete buffer operation
Using Civil 3D 2011 (come with Map 3D of course) 64 bit on a window 64 bit machine. Tried attaching sqlite db with no luck, then exported to SDF attached to dwg as datasource, themed, etc... tried feature buffer analysis again... same error.
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Jun 12, 2013
There is a touchscreen monitor in my car.It allows custom background wallpapers to be loaded via USB.The touchscreen automatically adds what would appear to be about a 25% alpha black layer in FRONT of the image so the touchscreen controls and icons are clearly visible.The problem is, I don't know what values I'm supposed to adjust on my image in order to get it to look the same way it does on my computer screen.Would you adjust the brightness? Contrast?Or is this simply not possible because the ~25% alpha black tint is placed OVER the wallpaper?
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May 27, 2008
I have a PNG image and like to edit the alpha mask. As there's no separate alpha layer inside the PNG image, but all pixels have a certain alpha value, I'd like to extract that with Photoshop. How can I do that?
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Jul 2, 2005
I have an image and i'd like to turn that into a transparent gif/png file for a website (has a changing bg color at random). The thing is i don't know how do this, and could use some help. What I tried so far is that I add to the original image an alpha channel which is the original image inverted, but that did not show me the checkered bg.
Anyway I added a faked impression of what i want to achieve. Thanks for any tips on how to make this work.
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Nov 28, 2012
I got single clip in desktop and it got an alpha embedded. If i drag that clip into the cfx , the clip will be interpreted correctly where alpha will be recognized. The problem in action is when i drag into action schematic, the alpha is ignored Smoke should know if there's alpha embedded then by default it should use it. ANother problem is when in media list , i add new media then click the clip twice (to grab F and M from the same clip), the result : i got blank alpha. Again it should load the alpha while there's alpha embedded . I think , this should become the dafault behaviour to deal with alpha. Although loading this clip in cfx schematic will solve the problem, i think the action still need to be fixed.
Also it should be cool feature if i can drag the clip from library and drop it in media list , and it will replace the media of the selected item in media list.
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Oct 21, 2012
Is there any way I can directly make a grayscale image into an alpha transparency channel?
I mean, NOT involving selection? Because selection by color to layer mask,is really difficult what I need to do the selection threshold.
Why is it easy to turn an alpha channel into a grayscale image but not the reverse?
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