ramp based phenomenon

[ashretalalck]

Hi all I'm trying to make a phenomenon which uses a ramp (struct array) inside it. :

declare phenomenon  
	"ar_rampShader" (		
		integer		"interpolation", #:enum "0:1:2:3:4" default 1	
		array struct	"colorEntryList" {
			scalar		"position",
			color		"color"
			},
		color "diffuse" default .5 .5 .5,
		integer		"mode",
		array light	"lights"		
	)
	
	shader "diffuse"
		"ar_diffusePass" (
		"diffuse" = interface "diffuse",
		"opacity" 1. 1. 1. 1.,
		"mode" = interface "mode",
		"lights" = interface "lights"
		)


	shader "place2dTexture1"
		"maya_place2dtex" (
			"uvCoord" 0. 0. 0.,
			"uvFilterSize" 0. 0. 0.,
			"coverage" 1. 1. 0.,
			"translateFrame" 0. 0. 0.,
			"rotateFrame" 0.,
			"mirrorU" off,
			"mirrorV" off,
			"stagger" off,
			"wrapU" on,
			"wrapV" on,
			"repeatUV" 1. 1. 0.,
			"offset" 0. 0. 0.,
			"rotateUV" 0.,
			"noiseUV" 0. 0. 0.
			)

	shader "ramp"
		"maya_ramp" (
		"interpolation" = interface "interpolation",
		"colorEntryList" = interface "colorEntryList",
		"uvCoord" = "place2dTexture1.outUV",
		"uvFilterSize" = "place2dTexture1.outUvFilterSize"
			)
	
	shader "mix"
		"mib_color_mix" (
		"num" 2,
		"mode_0" 0,
		"mode_1" 2,
		"weight_0" 1.,
		"weight_1" 1.,
		"color_0" = "diffuse",
		"color_1" = "ramp.outColor",
		"color_base" 0. 0. 0. 1.
			)

	root= "mix"
	version 1
	apply material
	#:nodeid 1107711

end declare

It all loads fine how ever the ramp element doesn't seem to be affecting anything.

Is there anything other connections that need to be made between the interface and the ramp "colorEntryList" attribute, if so what is the syntax for this?

I'm using maya2008 to test the shader out.

Any help much appricated.

-- Ash

[bart]

Can you post the declaration for maya_ramp for comparison on how it uses the color entry list?

I could but I'm not in front of my Maya machine right now.

[ashretalalck]

Hi Bart, here you go:

# Ramp
#
declare shader
	struct {
		color		"outColor",
		scalar		"outAlpha"
	} "maya_ramp" (
		integer		"type",
		integer		"interpolation",
		array struct	"colorEntryList" {
			scalar		"position",
			color		"color"
			},
		scalar		"uWave",
		scalar		"vWave",
		scalar		"noise",
		scalar		"noiseFreq",
		scalar		"hueNoise",
		scalar		"satNoise",
		scalar		"valNoise",
		scalar		"hueNoiseFreq",
		scalar		"satNoiseFreq",
		scalar		"valNoiseFreq",
		# Inherited from Texture2d
		vector		"uvCoord",
		vector		"uvFilterSize",
		scalar		"filter",
		scalar		"filterOffset",
		boolean		"invert",
		boolean		"alphaIsLuminance",
		color		"colorGain",
		color		"colorOffset",
		scalar		"alphaGain",
		scalar		"alphaOffset",
		color		"defaultColor"
		)
	apply texture
	version	2
end declare

cheers for any help

-Ash

[bart]

Do you have standalone to test to see if it works without the ramp UI?

Next, are you really asking about how the UI is presented in Maya?

That is handled by mel scripts for special things like the ramp. I doubt the auto parsing mechanism in the Node Factory would know what to do with this input data type.

I'm no mel expert, but I see related stuff in scripts/AETemplates/AErampShaderTemplate.mel for example

[bart]

I stand corrected, Maya 2008 SP 1 knows how to parse array struct arguments from an mi declaration. Whoo hoo.

[ono]

I'm having the same trouble in Maya 2012 (mental ray 3.9.1.43).
Is there any way to fix this problem?