LightBender | A multi-platform , GPU-accelerated , C | GPU library
kandi X-RAY | LightBender Summary
kandi X-RAY | LightBender Summary
Light Bender is a multi-platform, GPU-accelerated, C++ rendering application written around the [NVIDIA OptiX] Ray Tracing API. [Demo video] Key features: * Ray tracing and light propagation code is handled on the GPU via OptiX ray tracing functions and CUDA kernels allowing for a significant speed up over CPU-based renderers. * CMake build files are used to allow for cross platform compilation on Linux, OS X, and Windows. * Monte Carlo random sampling is utilized to accurately compute the lighting equation integral. * Importance sampling of BSDFs is used to reduce variance and decrease convergence times. * Russian roulette path selection is used to probabilistically select a single reflection, transmission, or absorption path on each render pass (also reducing convergence times). * Real-time user manipulation of materials and camera settings is available through an on screen UI.
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QUESTION
OK here's a challenging one! I really want to see if this can be accomplished with CSS only if possible.
I have a unique layout that requires images to be sized and positioned based on their parent container. If the image exceeds it's parent in height or width I need it to reduce size to fit. At the moment I'm using max-width and max-height together and it's working fine. The image resizes to fit and of course keeps it's aspect ratio.
Now here's the tricky part. I need to add a special shadow to this image that cannot be accomplished with CSS box shadows. The shadow uses PNG image. The shadow needs to be sized and positioned in relation to the image - meaning it falls at the bottom of the image and it equals the width of the image.
Normally I would achieve the shadow with ::after and size and position it relative to it's parent element, which works perfectly Except it's parent is the image and images do not allow ::before or ::after.
So as far as I can tell, the only way to achieve this is to wrap the image in another container so I can use that container as the parent elements and positioning reference for the shadow layer. But I cannot find a way to make that container div behave in the same way as the image in terms of the max-width and max-height sizing while still maintaining it's aspect ratio.
The best methods for maintaining aspect ratios use padding top, which works brilliantly when the width is the only important factor. But the padding-top technique doesn't allow for the container to have a max-height.
So I'm looking for a CSS technique that will allow a block element to maintain its aspect ratio, and have max-width and max-height at the same time. Similar to how an image would behave in this situation.
I've scoured the internets for a solution and haven't seen anyone describe this exact situation. Would be extremely grateful to anyone who can assist.
Added 1 Sept 2017:
I should mention that it's more than just the shadow I need to position relative to the image. There are some other elements as well that need to be positioned in this way, and those other elements are not simple background images. So while Lightbender's solution is great for the shadow, it doesn't solve the bigger issue at hand. I need a container around the image that I can use as reference to position other child elements.
...ANSWER
Answered 2017-Aug-30 at 19:35While before and after won't work (easily) but you can still use padding and a background image and it will work exactly the way your current setup works.
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