Tutorials
Lightwave : Rendering and Compositing
Compositing
3D compositing can be extremely challenging but at the same time, very
rewarding. Unfortunely, one of the difficult parts of compositing is to
create a format that is usable in a variety of editing environments. Lightwave's
alpha channel is an exellent way to do this even if making a "perfect
alpha" is quite tricky. The problem with alpha channels is that when
an image is rendered using motion blur, DOF or even anti-alias, whatever
background information was used during the render, the edges will contain
color portions of that because of the way that render passes are mixed
together. Another difficulty is casting shadows onto a background image
without damaging the background. Here, we will explore the basics of compositing
and specifically look at how to create shadows and matte objects that
don't interfere with the composited image.
exposure hdri
the high dynamic range of hdris is truly the reason why we use them
but like so many things, there is a 'bad' side as well. even if we can
handle renderings with more than 8 bits internally, we still have to compress
the high dynamik range to normal ranges to use the pictures for web, print
and whatsoever. as you surely can imagine, this isn't a progress without
troubles. so i will explain some effects of hdr images and how to handle
them.
lightwave and dof
one of the most important feature for photorealistical renderings is
'imperfection'. this means, humans are thinking always in dimension which
are defined by things surounding them. we see photos, videos and magazines
each day and so we have a feeling for what is real and what not. if you
look and renderings on galleries or advertising you'll often see that
this isn't real. i wrote about some things like noise in another tutorial
(compositing) and so we will discuss another technique now.
Matte Filters Composite
WaveFilter Image Matte Filters
Roll Your Own
Many of you may be familiar with our Visual FX packages for Lightwave,
as well as Fly FX by Dimension Technologies or Hollywood FX. All these
programs take the work out of creating transitions in Lightwave. But what
if you wanted to create your own? That's what this article is about. We
will give you a stripped down scene file designed to show you how to roll
your own.
Sunset
This tutorial is aimed at beginners. This free first part will show
you how to make a sunset with LightWave's built-in Skytracer and how to
use SkyBaker to "bake" the resulting sky to a spherical image
that can be mapped on a sphere or skydome.
Compositing
3D compositing can be extremely challenging but at the same time, very
rewarding. Unfortunely, one of the difficult parts of compositing is to
create a format that is usable in a variety of editing environments. Lightwave's
alpha channel is an exellent way to do this even if making a "perfect
alpha" is quite tricky. The problem with alpha channels is that when
an image is rendered using motion blur, DOF or even anti-alias, whatever
background information was used during the render, the edges will contain
color portions of that because of the way that render passes are mixed
together. Another difficulty is casting shadows onto a background image
without damaging the background. Here, we will explore the basics of compositing
and specifically look at how to create shadows and matte objects that
don't interfere with the composited image.
exposure hdri
the high dynamic range of hdris is truly the reason why we use them
but like so many things, there is a 'bad' side as well. even if we can
handle renderings with more than 8 bits internally, we still have to compress
the high dynamik range to normal ranges to use the pictures for web, print
and whatsoever. as you surely can imagine, this isn't a progress without
troubles. so i will explain some effects of hdr images and how to handle
them.
lightwave and dof
one of the most important feature for photorealistical renderings is
'imperfection'. this means, humans are thinking always in dimension which
are defined by things surounding them. we see photos, videos and magazines
each day and so we have a feeling for what is real and what not. if you
look and renderings on galleries or advertising you'll often see that
this isn't real. i wrote about some things like noise in another tutorial
(compositing) and so we will discuss another technique now.
Matte Filters Composite
WaveFilter Image Matte Filters
Roll Your Own
Many of you may be familiar with our Visual FX packages for Lightwave,
as well as Fly FX by Dimension Technologies or Hollywood FX. All these
programs take the work out of creating transitions in Lightwave. But what
if you wanted to create your own? That's what this article is about. We
will give you a stripped down scene file designed to show you how to roll
your own.
Sunset
This tutorial is aimed at beginners. This free first part will show
you how to make a sunset with LightWave's built-in Skytracer and
how to use SkyBaker to "bake" the resulting sky to a spherical
image that can be mapped on a sphere or skydome.
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