Phobos and Deimos bump.Where?

[danielj]

I am looking for bumpmaps or normal maps from Phobos and Deimos.Johns retired them and I haven?t found anyone.I am using the original lo res bump map,but it appears that the textures are oscilating,rumbling

[Guest]

I am looking for bumpmaps or normal maps from Phobos and Deimos.Johns retired them and I haven?t found anyone.I am using the original lo res bump map,but it appears that the textures are oscilating,rumbling

Daniel, bumpmaps, normal maps, specular maps, nightlight and cloud maps does not work on a 3DS model in Celestia.

Bye Jens

[danielj]

I didn?t ask about bumpmaps to the Phobos and Deimos 3DS models.I was asking for a bump map for a texture like,for example,Phobos.dds

[selden]

DanielJ,

A bumpmap is used to color the surface of a smooth object (like a sphere) so it looks like it has bumps.

Phobos and Deimos shouldn't need bumpmaps. Their models are 3D and have real bumps. However, the models are relatively smooth and would look better if bumpmaps or normal maps could be used with them. As Jens wrote, applying bumpmaps to the surface texture images used for 3DS models is not (yet?) possible.

Also, Celestia does not yet implement "self shadowing". It does not draw shadows caused by the bumps in the surfaces of 3D objects.


The surface texture maps included in Celestia for Phobos and Deimos do have shadows drawn on them so you can see the craters. This is sometimes called a "static bumpmap".

I hope this clarifies things a little.

[danielj]

OK,I understand.But my Phobos textures are shaking or rumbling.
Look to my solarsys.ssc and see what could be wrong :


"Phobos" "Sol/Mars"
{
Mesh "phobos.3ds"
Texture "phobos.jpg"
BumpMap "phobosbump.jpg"
Radius 11

EllipticalOrbit
{
Period 0.318910
SemiMajorAxis 9377.2
Eccentricity 0.0151
Inclination 1.075
AscendingNode 128.694 # J2000
ArgOfPericenter 213.804 # J2000
MeanAnomaly 191.771 # J2000
}

Obliquity 0.0
RotationOffset 174.2

Albedo 0.07
}

[Star Lion]

Chang it to:

Code: Select all

"Phobos" "Sol/Mars"
{
Mesh "phobos.3ds"
Texture "phobos.jpg"
Radius 11

EllipticalOrbit
{
Period 0.318910
SemiMajorAxis 9377.2
Eccentricity 0.0151
Inclination 1.075
AscendingNode 128.694 # J2000
ArgOfPericenter 213.804 # J2000
MeanAnomaly 191.771 # J2000
}

Obliquity 0.0
RotationOffset 174.2

Albedo 0.07
}