SDK - how to use list params?

[haggi]

Hi,

I try to create my first own texture node. For this node I need an array of textures as input. I had a look into the mtlMulti and tried to use the same parameters like this:

struct MegaTex_Params: VRayParameterListDesc {
	MegaTex_Params(void) {
		// Add the parameters
		addParamTexture("Col1");
		addParamColor("Col2",Color(1.0f,0.0f,0.0f));
		addParamPlugin("TextureList", EXT_TEXTURE, 0, "A list of textures.");
	}
};	

class MegaTex: VRayTexture {
	MegaTex(VRayPluginDesc *pluginDesc):VRayTexture(pluginDesc) {
		// Set parameter caches
		paramList->setParamCache("Col1", &col1);
		paramList->setParamCache("Col2", &col2);
		paramList->setParamCache("TextureList", &txtPlugins);
	}

	void renderBegin(VR::VRayRenderer *vray);
	void renderEnd(VR::VRayRenderer *vray);
	void frameBegin(VR::VRayRenderer *vray);
	void frameEnd(VR::VRayRenderer *vray);

	AColor getTexColor(const VRayContext &rc);
	void getTexColorBounds(AColor &cmin, AColor &cmax);
	Vector getColorBumpGradient(const VRayContext &rc);

	PluginBase* getPlugin(void) { return (PluginBase*) this; }
private:
	// Cached parameters
	TextureInterface *col1;
	TextureInterface *col2;
	VRayPluginList txtPlugins;
	ShadeCache<AColor, true, false> shadeCache;
};
.....
...

The "Color1" and "Color2" attributes appear in maya if I load the shader from the Create menu. But there is no sign of a list parameter.

Any idea whats wrong in this code?

[vlado]

There is nothing wrong with the code; the automatic UI generator does not support list parameters at the moment. One way to do it is to create a fixed number of parameters instead (tex0, tex1... etc). Or if you are prepared to wait for a few days, we can implement this...

Best regards,
Vlado

[haggi]

An implementation would be great, waiting some days is no problem.