[Closed] MR renderer Properties

Sep 30, 2006 7:10 pm

Hi I am writing a lil script to help import in zbrush displacement maps and I ran into a small prob.

I am trying to access the the edge length and the max displacement properties but everytime I evaluate mental_ray_renderer.Edge_length or mental_ray_renderer.Max_displace I get

– Unknown property: “Edge_Length” in mental_ray_renderer
– Unknown property: “Max_Displace” in mental_ray_renderer

I cant quite figure out what I am doing wrong. I have been able to get the other properties but I cant seem to get this figured out. If somebody could point me in the right direction I would be very thankfull.

7 Replies

HalfVector

Sep 30, 2006 7:10 pm

Probably you are trying to access to those properties directly through the mental_ray_renderer structure. The correct way shoud be:

renderers.current.Edge_Length
renderers.current.Max_Displace

This should work if the current renderer is Mental Ray:

if classOf renderers.current == mental_ray_renderer do (
	-- Yeah, the current renderer is Mental Ray!
)

Greets.

sethwolford

Sep 30, 2006 7:10 pm

Thanks that was the fix !

I appreciate the quick response.

sethwolford

Sep 30, 2006 7:10 pm

I almost have this script done but I have run into a small prob. I am trying to change the “.coord.V-tiling” value for the a mental ray custom attribute. This is the line the macro recorder gives me when I change it.

meditMaterials[1].mental_ray__material_custom_attribute[#Displacement][#map].coords.V_Tiling = -1.0

When I try to change the value by evaluating this line I get

“– Unknown property: “coords” in undefined”.

I cant find the property name for this. I was able to find it on the regular displacement but not for the mentalray custom attribute. I was looking in the maxscript help but I cant find it for the life of me.

I appreciate any help that anybody could give me on this.

HalfVector

Sep 30, 2006 7:10 pm

Try this:

mEditMaterials[1].displacement.coords.v_tiling = -1.0

sethwolford

Sep 30, 2006 7:10 pm

yeah I tried that one and I got

– Unknown property: “coords” in Map #1:3D Displacement (3dsmax)

I am not sure if I can change coords on mental_ray_custom_attributes.displacement

I had no probs with regular displacement but this one is not working.

HalfVector

Sep 30, 2006 7:10 pm

Ok, you applied a “3D Displacement” to the displacement map. And this kind of map doesn’t have a property called “coords”. That property is for 2D maps.

So what if you want is access to the coords property for the “Extrusion Map” (being this a 2D map), it should be:

mEditMaterials[1].displacement.map.coords.v_tiling

Anyway, you can use the function show to list the properties for MAX objects. For example:

show mEditMaterials[1].displacement

will output:

.objectIndependent ((null)) : boolean
.fullDisplaceLength ((null)) : worldUnits
.mapAmount ((null)) : float
.map ((null)) : texturemap
.directionStrength ((null)) : float
.direction ((null)) : texturemap
.mapAmount.connected ((null)) : boolean
.mapAmount.shader ((null)) : texturemap
.mapAmount.paramName ((null)) : string
.directionStrength.connected ((null)) : boolean
.directionStrength.shader ((null)) : texturemap
.directionStrength.paramName ((null)) : string
.TheList ((null)) : maxObject array
.Shader Version ((null)) : integer

and then:

show mEditMaterials[1].displacement.map

will output:

.soften : float
.color1 (Color_1) : RGB color
.color2 (Color_2) : RGB color
.map1 (Map_1) : texturemap
.map2 (Map_2) : texturemap
.map1Enabled (Map_1_Enable) : boolean
.map2Enabled (Map_2_Enable) : boolean
.coords (Coordinates) : maxObject

and so on…

The show function is very valuable.

Hope that helps.