Indigo 1.1.10
take calculusZomB wrote:Does anybody know some lecture/tutorial that would help to understand and use Indigos Shader Language better? The main Problem is about the understanding of some basic 3D stuff that the language is referring to :/
the possted ones in the forms are a good place to start, change some of teh paramaters and watch what happens.
Yes i know, my spelling sucks
euhm actually the first port of call is linear algebra: vectors, dot product, cross product, etc. there isn't really any calculus involved in the shading language i think.eman7613 wrote:take calculus :twisted:ZomB wrote:Does anybody know some lecture/tutorial that would help to understand and use Indigos Shader Language better? The main Problem is about the understanding of some basic 3D stuff that the language is referring to :/
Ono,
I have been bug fixing to get the primitives of 'plane' and 'sphere' working properly in my script and I read in a tiny corner of the forum from smartden that 'plane' is now deprecated.
this seems to be born out by Indigo rejecting my 'plane' code and the ground plane as 'unknown element type'
if this dep is so please confirm it here and remove reference to plane in the latest manual, there's a good fellow
I have been bug fixing to get the primitives of 'plane' and 'sphere' working properly in my script and I read in a tiny corner of the forum from smartden that 'plane' is now deprecated.
this seems to be born out by Indigo rejecting my 'plane' code and the ground plane as 'unknown element type'
if this dep is so please confirm it here and remove reference to plane in the latest manual, there's a good fellow
Re: Indigo 1.1.10
oh yeah! thank you so muchOnoSendai wrote:* added comparison functions to shader language:
eq, neq, lt, lte, gt, gte
* added boolean functions to shader language:
and, not, or
* added length function for vectors to shader language
Re: Indigo 1.1.10
Thanks a bunch! I guess the confusing part for me is that I still don't see anything about efficacy. Is emission scale the same as efficacy scale? What happened to power (watts) and overall luminous efficacy? (lm/W) These are familar terms to many users. All of my emitter presets were based on these values.OnoSendai wrote: EDIT: attached latest manual, which contains documentation for new shader language functions, and emission_scale.
How do I create a simple 100W incandescent bulb now?
Re: Indigo 1.1.10
The emission scaling functionality now is basically a superset of the old efficacy scale functionality.Whaat wrote:Thanks a bunch! I guess the confusing part for me is that I still don't see anything about efficacy. Is emission scale the same as efficacy scale? What happened to power (watts) and overall luminous efficacy? (lm/W) These are familar terms to many users. All of my emitter presets were based on these values.OnoSendai wrote: EDIT: attached latest manual, which contains documentation for new shader language functions, and emission_scale.
How do I create a simple 100W incandescent bulb now?
The old way of setting the power drawn (Watts), and overall luminous efficacy (lm/W) was basically a convoluted way of specifying the luminous flux (lm) of the light, which is just the product of the power drawn, and the overall luminous efficacy.
With the new emission scale system, you can just set the luminous flux directly. In addition, you can also scale the emission of the light according to other measures, such as luminance, luminous intensity, and luminous emittance.
To create a 100 W incandescent bulb, using a figure of 13.8 lm/W from wikipedia ( http://en.wikipedia.org/wiki/Luminous_efficacy ), and 100 W, the luminous flux of the bulb is 100 W * 13.8 lm/W = 1380 lm.
I think power/efficacy is specifically a meshlight thing.
I guess you could arrange it so the emission scale options mimic watts
I have to admit its a little confusing to me as well esp. the two multipliers, spectral radiance and flux together.
I am not sure why we have both - open to education on that
EDIT: ono beat me to it
I guess you could arrange it so the emission scale options mimic watts
I have to admit its a little confusing to me as well esp. the two multipliers, spectral radiance and flux together.
I am not sure why we have both - open to education on that
EDIT: ono beat me to it
Hey Ono
great work - I just came back to Indigo for one render project.
Out of curiosity - do you know when you might be able to introduce anisotropic reflections? I read about that you start having a new shader
language for Indigo.
Claas
great work - I just came back to Indigo for one render project.
Out of curiosity - do you know when you might be able to introduce anisotropic reflections? I read about that you start having a new shader
language for Indigo.
Claas
--
C l a a s E i c k e K u h n e n
Artist : Designer : Educator
Assistant Professor Industrial Design
Kendall College of Art and Design
of Ferris State University
C l a a s E i c k e K u h n e n
Artist : Designer : Educator
Assistant Professor Industrial Design
Kendall College of Art and Design
of Ferris State University
Who is online
Users browsing this forum: No registered users and 72 guests