Questions tagged [real-time]
For questions about computations subject to real-time constraints. The minimum framerate for a real-time illusion is usually considered to be around 24 frames per second. See also [interactive] for less strict constraints and [offline] for computations which will take significantly longer.
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What is "Object Space Lighting"?
Looking at Star Swarm, a demo for the Nitrous engine, I found this little line:
"Nitrous uses Object Space Lighting, the same techniques used in film, including real-time film-quality motion blur."
I ...
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How to improve on bilateral upsampling in real time scenarios
It is a well known "standard" to use bilateral upscaling when it comes to comes to combine a low resolution target and an higher res one.
I have personally noticed that using the basic algorithm (...
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Is there a way to achieve the look of a distant flock or shoal without full simulation?
Although simulation models like Boids give good results for bird flocks or fish shoals on a small scale, simulating every single member in real time becomes unrealistic for huge numbers. Is there a ...
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Why do multiple Gaussian Blurs?
Applying multiple Gaussian blurs can result in an effect that is equivalent to a stronger Gaussian blur.
For instance this question says that: Is doing multiple Gaussian blurs the same as doing one ...
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How to reduce the number of draw calls when rendering one object multiple times?
Especially when rendering particle effects, the same object needs to be rendered several times with slightly modified properties. But these changes are often limited to properties like pose or ...
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How is motion blur implemented in modern realtime renderers?
When realtime renderers (such as 3d games) have motion blur, how is it usually implemented?
I think I've heard something about needing to have motion vectors for each pixel but I'm not sure about ...
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How does directional Gaussian blurring work?
In image editing software, you often have the ability to do a directional blur where you can choose and angle and a magnitude of a blur.
How does this actually work in practice with Gaussian blurring?
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Is doing multiple Gaussian blurs the same as doing one larger blur?
To make Gaussian blurring a 2d image faster, I know that you can do one axis and then the other.
I'm wondering though, if I did two Gaussian blurs of size $N$, would that be the same mathematically ...
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Real-time translucency effect
While rendering my scene with OpenGL, I sometimes add an overlay which contains information, settings and a few draggable items. Currently, the overlay has a slightly transparent background to make ...
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How can I create a bounding volume hierarchy for constantly moving objects?
I'd like to be able to render a large population of small independently moving objects in real time. They may move in a swarm-like manner, but their relative positions will not be coherent - their ...
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How does state of the art real time hair rendering work?
It is common knowledge that hair simulation and rendering is particularly challenging and in fact rare are the examples in games that propose believable hairs. It is pretty easy to imagine how hard it ...
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