*luxball material preview scene competition*

[Radiance]

Hi all,

Since we've got our *cool* new logo,
here's an update of the material preview scene which you might have seen around.
The new lux logo is booleaned out of the main ball.

I'd like to propose a competition of some sorts to complete it.
I suggest you have a look around on other projects (the maxwell preview is pretty much the golden standard),
and figure out the features it needs to completeley demonstrate all aspects of a material.

i'd start with an environment, better lighting, uv mapping etc...

the object's size: the main ball with the logo cut out is 10cm wide. (diameter). the units in the blend file are 1cm for 1 blender unit.

Once we have a final scene we can start rendering materials for the documentation with it,
and after the material system overhaul planned for lux v0.2, an online material database.

Here is the .blend scene file as a zip archive:
http://www.luxrender2.org/downloads/luxball.zip

There's a copy of the latest luxblend alpha9 inside the texteditor (right view pane) in the scene file above.
i suggest you use that one to render with.

Just make sure 'background' is set to 'none' and set the sampler from 'lowdiscrepancy' to 'random' in the engine tab.
You can render it with MLT for good results, i've attached a latest CVS build for win32 to this post.
(linux users will have to compile from CVS...)

Please share your comments/ideas in this threads, aswell as any questions...

Good Luck!,
Radiance

[pafurijaz]

Thanks, now I try, some materials.
Ball with optimized mesh, modified by triangles in square.

luxball (2).zip

(1.86 MiB) Downloaded 298 times

[Radiance]

here's the 'debugged' glossy transmitter in action ('translucent' material) inherited from pbrt,
i'm adding it to the alpha9 exporter / RC3 release too...

good for making frosted glass etc, it also does diffuse transmission which is slightsly more sss like,
good for making cloth and curtains etc...

cooked for 24 minutes...

greetz,
radiance

geometry tag:

Code: Select all

Material  "translucent" "texture Kd" "Kd-material" "texture Ks" "Ks-material" "texture reflect" "reflect-material" "texture transmit" "transmit-material" "texture roughness" "roughness-material" "texture index" "index-material" "texture bumpmap" "bumpmap-material"

material tags:

Code: Select all

# Material 'material'
# Type: 'translucent'
Texture "Ks-material" "color" "constant" "color value" [.2 .2 .5]
Texture "Kd-material" "color" "constant" "color value" [0 0 0]
Texture "reflect-material" "float" "constant" "float value" [.0]
Texture "transmit-material" "float" "constant" "float value" [.5]
Texture "roughness-material" "float" "constant" "float value" [0.001]
Texture "bumpmap-material" "float" "constant" "float value" [0.000000]

[zcott]

Shouldn't the edges be smoothed out like here? Would look much cuter... :)

[pafurijaz]

Hi, I have modeled this sphere with "SolidEdge V19", I hope will be useful.
The model is parameterized.
Simple test with new setting gold.
Tonight, I try to replicate the model of radiance, trying to improve some parts.

LuxBall_SolidEdge_19.par.zip

SolidEdge v19 par model

(1.01 MiB) Downloaded 91 times

Simple test with new gold materials

NewLuxBall.jpg (61.38 KiB) Viewed 4784 times

[Abel]

I think the bevelled edges make the ball look better and they are useful in showing how the material behaves. But it would be good if there were also some sharp edges; I would suggest keeping the edges of the base as sharp as they are in Radiance's model.

[pafurijaz]

Hi guys, this is the new ball.
I followed the advice of both.
Are attached, different file formats.
Later, in the morning, I do the Blender's model.

New LuxBall

LuxBall_SolidEdgeV19.par.zip

Solid Edge V 19 par Model

(1.01 MiB) Downloaded 80 times

LuxBall_Parasolid.x_t.zip

Parasolid.x_t

(66.16 KiB) Downloaded 63 times

LuxBall_ACIS.sat.zip

ACIS.sat

(858.11 KiB) Downloaded 69 times

LuxBall_STEP.stp.zip

STEP.stp

(741.4 KiB) Downloaded 74 times

LuxBall_RhinocerosV3.zip

Rhinoceros V3.3dm

(1.11 MiB) Downloaded 97 times

[pafurijaz]

Hey, the ball, modelled with Solid Edge, can be changed, simply.
I tried to import it into Blender, but has too many polygons.
I hope someone can improve, the mesh.
I can attack the zip file is too big.

Gold material

LuxBall.jpg (68.18 KiB) Viewed 4541 times

[jendrzych]

FIrst sketch (reaaaalllly raw - due to lack of time) of my "Material Scene Preview" proposal.


and fast preview (with Blender'sinternal rend. engine so far ):


BTW - I made 3D ver. of the logo - it has quite usable topology (as the model mentioned above) so could be easy UV textured.
So if somebody wants it... it can be grabbed from here:
http://www.box.net/shared/kgbpu0dsnz

[mfoxdogg]

hi all here is my version of the luxball