s_H_A_D_O_W_s_
6 messages in this thread
G
I'm having a heck of a time understanding the shadow popup and some other
related things:
1. I don't understand the effect that Bias, Sample & Range have on my image's
shadows. Just experience and tutorials will help I'm sure but
why is shadow creation so complicated? Am I supposed to know these
attributes before the shadow comes up?
I probably can't see the creative potential that these concepts will give
me in other types of work.
2. Why couldn't there be a preview window in the shadows pop-up for shadow
optimizing.
3. The best possible shadow I can get from a smooth edged building is still
detatched and looks like the shadow cast by some gothic-spired cathedral!
(cool where appropriate like in the case of very plain bldgs) It's kind of
like
a model of a box casting the shadow of a bat wing.
This whole thing is casting a shadow over me..yuk, yuk, Gary
Tutorial #13 and the Shadow Parameters section in the Reference book
give you a detailed description of what the buttons do. Once you
understand that, you should make a simple scene with a single
shadow-casting light and experiment. A preview window wouldn't work
because the effects are all scene-dependant, and it would take just
as long to do that as to render a region of the screen. If you best
shadow you're getting is still heavily aliased, then your map res
isn't high enough, your light is too far from your scene, or the
light's falloff cone is too wide.
G
Thanks for the response. I can understand that the preview wdw is
not workable but couldn't the materials editor take part in shadow
creation? Shadow mapping could have as much color complexity as real
world shadows.
The reference bk and I will be as one, I will be tutorial 13!
Thanks, Gary
Hi, I have an intermittent problem with shadows. I have a very large
scene with 15 spotlights, all casting shadows. if I render a single
frame all shadows seem to be right, but if I render a sequence of
targas or an FLC then some shadows dissapear or show only on the las
frame, I have tried different resolutions, checked all the lights
etc. Since every frame takes at least 20 min on my Pentium 90 it is
very frustratin to see an animation after a long night without the
proper shadows. Any ideas?
Arturo,
<< . Any ideas? >>
Sure.. review pg 7-160- 7-163.
Note the use of MAP BIAS, MAP SIZE, MAP SAMPLE RANGE, etc.. Note especially the
default map size and how this relates to your scene.
jonas[adesk]
Are they all mapped shadows, raytraced or a mix?
– G