[chaoscope] Re: Solid Render and colors
- From: Chaoscope <chaoscope@xxxxxxxxxxxxxx>
- To: chaoscope@xxxxxxxxxxxxx
- Date: Thu, 08 Feb 2007 22:50:59 +0000
Hi Christian and Taylor, hello all,
the problem with Solid colors is you're missing one very important
parameter: the lights! You don't know their exact color or position so
it's very hard to tell what effect changing the colors will have. This
is why you have to press Ctrl+R alot until you're happy with the result,
then create your own view settings from that and edit them manually to
cope with the lack of light interface. Should I write a tutorial for it?
Anyway, to add to Christian and Taylor description, here is what the
colors do:
- Diffuse is the color of the attractor, therefore setting it to white
(FFFFFF) allows you to see the lights color as they are. You may darken
the color when the lights are too bright.
- Secondary should be close to the diffuse color. The surface color
blends from the diffuse color to the secondary color as its gets closer
to the "sides" of the attractor. Not sure it makes much sense said that
way! I think the two images in the manual explain it better than I ever
could with words. I usually set the secondary to a darker shade to add
depth the the render.
- Ambient is the color used when the attractor receives no light, i.e.
the darkest parts of the attractor will be set to the ambient color. It
is added to the diffusion, therefore it will tint the whole surface. You
can set it to saturated green or red to see what it does.
- Specular controls the tint, but most importantly the brightness of the
specular highlights. The brighter the color, the shinier the material
will look like, the darker the more dull.
- Roughness goes together with Specular and control the size of the
specular highlights. Higher roughness means bigger highlights.
You can obtain interesting effects playing with these colors and values,
I'm attaching a project to give you an example of coloring an attractor,
with just one gray light and gray diffuse color.
Development is slow as ever, still messing around with perspective and
broke a few things on the way. I've found a new and very promising
equation here:
http://www.davebollinger.com/works/magnattractor/
The original is 2D but was very easily converted to 3D.
Regards,
Nicolas Desprez
info {
version "0.3.1"
author "ndesprez"
date "08/02/2007"
}
attractor {
type lorenz_84
iterations 200000000
parameters <2.84507042253521, 9.46478873239437, 2.05633802816901,
8.73239436619718,
0.0136507042253521>
}
view {
mode solid
width 640
height 480
scale 0.701590116137368
model_scale 0.186435201464109
origin <-0.112199847225308, 0.323796962110629, -0.385864734458644>
translation <0.00542880553188561, 0.109158125459517, 0>
rotation <0.525838069262211, 0.752179548264455, 0.3971400912616,
1.88487230110864>
peak 51246.4765625
gamma 1
opacity 800
roughness 0.0508333333333333
light {
direction <-0.759664019200358, 0.196988436680284,
0.619762965775316>
color <0.720000028610229, 0.720000028610229, 0.720000028610229>
}
colors {
primary <0.800000011920929, 0.800000011920929,
0.800000011920929>
secondary <0.501960813999176, 0.125490203499794, 0>
specular <0.800000011920929, 0.376470595598221, 0>
ambient <0.00784313771873713, 0.00784313771873713,
0.00784313771873713>
background <0.200000002980232, 0.200000002980232,
0.200000002980232>
}
}
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