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I am attempting to change a material color within a addsourcecode script and am having some trouble
getting the handle of a material. What follows is my test code.
fun TestColor(string)=
let (V3DgetSessionView c3dXsession) -> viewstr in
let V3DgetDefaultSession viewstr -> sessionstr in
let SO3SceneGetMaterial (V3DgetSession sessionstr) "V3DdefaultResources" "BaseWhite" -> mat in
if mat == nil then nil else
(
SO3MaterialSetAmbient mat (make_rgba 0 0 255 0);
SO3MaterialSetDiffuse mat (make_rgba 0 0 255 0);
SO3MaterialSetSelfIllumination mat (make_rgba 0 0 255 0);
);
0;;I have been trying to figure out the OS3D structure for this kind of access and have not made a lot of progress.
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I have modified the function:
fun TestColor(string)=
_showconsole;
let (V3DgetSessionView c3dXsession) -> viewstr in
let V3DgetDefaultSession viewstr -> sessionstr in
let SO3SceneGetMaterial (V3DgetSession sessionstr) "V3DdefaultResources" "BaseWhite" -> mat in
if mat == nil then
(
_fooS "material not found";
0;
)
else
(
_fooS "action";
SO3MaterialSetAmbient mat (make_rgba 0 0 255 0);
SO3MaterialSetDiffuse mat (make_rgba 0 0 255 0);
SO3MaterialSetSelfIllumination mat (make_rgba 0 0 255 0);
0;
);;The log shows
> Action : Scene.Test Color.Run with param : abc and reply param : Scene.Key_3
The console shows:
loading tmp/tmp3891288.pkg ...
typechecking
fun TestColor : fun [u0] I
Generating bytescodes for 'TestColor' ...
167 bytes generated (for a total of 15632)
Loading Complete
> exec: TestColor "abc"
material not foundOffline
loading tmp/tmp3891288.pkg ... typechecking fun TestColor : fun [u0] I Generating bytescodes for 'TestColor' ... 167 bytes generated (for a total of 15632) Loading Complete > exec: TestColor "abc" material not found
The material is not found ... So, the variable 'mat' is at nil when you execute this function.
A material named "BaseWhite" already exists in the loaded 3d scene at this moment ? It seems that not.
What is "abc" ? If it is the name of the material, you should put it in SO3SceneGetMaterial like that :
let SO3SceneGetMaterial (V3DgetSession sessionstr) "V3DdefaultResources" string -> mat inOffline
Hello,
first you can directly use (V3DgetSession c3dXsession)
then BaseWhite is not part of the "V3DdefaultResources" group.
and this material is not supposed to be changed.
try with a material from a scene, you can see how on material color plugIT
\os3dplugins\material\matcolor\cmatcolor.pkg
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I am not using the "abc" parameter at the moment.
As a test I changed the color of "BaseWhite" using a "material color inst" plugIt and have seen the expected color change
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I changed the group to "Scene" and that worked.
Thank You
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