I want to render to part of a texture in direct x 11.
Is there a simple way to just set the render target view to part of the texture?
If not, is there a better way. Thanks!
OMSetRenderTargets to the render target you want to use
RSSetViewports to the viewport on the RT you want to render to.
RSSetScissorRects to ensure things are properly clipped to your viewport.
Related
I am wondering how I would be able to use animated shapes inside a movieclip that would be acting as a mask?
In my Animate CC canvas file I have an instance (stripeMask) that should mask the below instance called mapAnim.
stripeMask contains shapes that are animating in.
So when the function maskIn is called, the playhead should move to the first frame inside the stripeMask clip (the one after frame 0) and animate the mask like so:
function maskIn(){
//maskAnimation to reveal image below
stripeMask.gotoAndPlay(1);
}
I love AnimateCC and it works great, but the need for creating more complex and animated masks is there and it's not easy to achieve unless I am missing something here.
Thanks!
Currently you can only use a Shape as a mask, not a Container or MovieClip.
If you want to do something more complex, you can use something like AlphaMaskFilter, but it has to be cached, and then updated every time the mask OR the content updates:
something.filters = [new createjs.AlphaMaskFilter(stripeMask)];
something cache(0,0,w,h);
// On Change
something.updateCache(); // Re-caches
The source of the AlphaMaskFilter must be an image, so you can either point to a Bitmap image, or a cacheCanvas of a mask clip you have also cached. Note that if the mask changes, the cache has to be updated as well.
This is admittedly not a fantastic solution, and we are working on other options.
I am using Unity 5 and I started to make a menu scene. When I made the canvas, all of values under the Rect Transform component are locked and it says "some values driven by Canvas." The only thing I can change is the z position when using the gizmo in the editor. I can't reset the position or anything. Why is this happening?
This means that the canvas's canvas component has it's render mode set to Screen space - overlay. This forces it to be the size of the screen. Change it to World Space and it will allow you to resize it and move it around.
Changing the Render mode is not an ideal solution; neither is Overlay mode the reason why this is happening at all. World Space is just a render mode that changes the way your whole UI behaves and would mean a whole different set up and a whole lot more work just to get a child UI object to move independently.
Here is the description of what World Space is for from the Unity site:
In this render mode, the Canvas will behave as any other object in the
scene. The size of the Canvas can be set manually using its Rect
Transform, and UI elements will render in front of or behind other
objects in the scene based on 3D placement. This is useful for UIs
that are meant to be a part of the world. This is also known as a
“diegetic interface”.
The Rect Transform usually gets locked because it is a child of another Canvas Object which controls its Transforms. The way to fix this is to overwrite it by adding a “Layout Element” component to it. From there you can configure it to work the way you like and it can have transforms independent of the Parent UI Object.
For full details, see this Unity support page: https://support.unity3d.com/hc/en-us/articles/115000179163-How-to-overwrite-Width-and-Height-values-that-are-driven-by-a-Layout-Group-in-runtime-
Canvas is depend on game tab in your window panel.
Adjust panel by use of close tab or resize panel or doc game panel.
It will help you make default 800 X 600 canvas.
Xcode 5
I'm trying to learn the auto-layout system. Thought I would start with something simple, but I'm already getting stumped :-)
Scene: Main View -> ImageView -> View
I want to support rotation such that the Image rotates and centers on the screen, using Aspect-Fit content.
I want the smaller view to maintain it's relative position to the top edge of the UIimage view. It does't seem to understand the aspect-fit, and it aligns the sub view along the top of the main view, not the fitted image.
I think it has something to do with the fact that the small view is a sibling of the Image, and not a sub-view. I can only seem to create constraints to the superview.
.
You haven't started with something simple!
An aspect fitted image view doesn't actually change its size under auto layout depending on the image, it fits the image into the bounds that the constraints have determined, leaving the rest of its frame blank. If you set a border or background colour on the image view you will see this.
To achieve the effect you're after you would need to do the aspect fitting calculation yourself and modify the sizing constraints on the image view appropriately.
I would like to make a reflection to an image - like this:
Is that possible in Monotouch?
Thanks!
Mojo
It is possible, considering that you have full access to CoreGraphics.
There are too many ways of skinning that cat though.
Say you have the top image in "image", I would do something like:
Create a graphics context
Draw the image
Create a bitmap context for the inverted image, with alpha transparency
Render the image invertd
Render a gradient that has been configured to go from 0.5 opaque to 0.2 opaque
Render that on the bottom of the image
Get an image out of the second context
Draw the extracted image into the first context, inverted.
I have a squared formed image. I need to add perspective view to it and then make an animation that will restore image back to square view. This actions must work at least in all newest versions of browsers and without Flash.
I have tried to do this as follows:
Using RaphaelJS I can only clip image (create path and set fill to image url), not add perspective.
Canvas works as svg and vml in RaphaelJS... I can't add perspective with it's help.
CSS3 3D animation method rotateX adds perspective, but it is supported only by Chrome and Safary.
There is no way to add perspective to image using built in tools.
The only possible solution, I have found is using SVG add clip path to image - it doesn't add perspective view, but it's the best possible solution.
As I understand - we can use Canvas to add perspective, but you must write your own javascript algorithm to transform plain image to perspective view.