Shaders

colorramp - A six-color ramp shader

This shader applies a color ramp to objects. Six color and opacity settings are available.

In this sample image, the discs demonstrate the five mapping modes. The top three discs show the x, y and z mapping modes for colorramp. These modes operate in world space. The bottom discs show s and t mapping modes. These modes wrap and scale to the surface space of the object.

If your browser has the Apple QuickTime Plug-In and MPEG extension, you can see the effect of animating the colorOffset parameter from 0.0 in the first frame to 1.0 in the last frame of this loop:

Parameter	Data Type	Usage	Example
colorScale	float	The scale of the six-color cycle	colorScale = 1
colorOffset	float	The offset of the six-color cycle	colorOffset = 1
mapType	integer 0 to 4	The mapping mode 0 = x (world space projection) 1 = y (world space projection) 2 = z (world space projection) 3 = s (surface wrap) 4 = t (surface wrap)	mapType = 3
shadingType	integer 0 to 5	The shading method code 0 = constant 1 = constant 2 = plastic 3 = matte 4 = glow (use on sphere) 5 = halo (use on sphere)	shadingType = 0
color1	RGB color	The first color	color1 = color(0, 0, 1)
color2	RGB color	The second color	color2 = color(0, 1, 1)
color3	RGB color	The third color	color3 = color(0, 1, 0)
color4	RGB color	The fourth color	color4 = color(1, 1, 0)
color5	RGB color	The fifth color	color5 = color(1, 0, 0)
color6	RGB color	The sixth color	color6 = color(1, 0, 1)
opacity1	RGB color	The opacity of the first color	opacity1 = color(1, 1, 1)
opacity2	RGB color	The opacity of the second color	opacity2 = color(1, 1, 1)
opacity3	RGB color	The opacity of the third color	opacity3 = color(1, 1, 1)
opacity4	RGB color	The opacity of the fourth color	opacity4 = color(1, 1, 1)
opacity5	RGB color	The opacity of the fifth color	opacity5 = color(1, 1, 1)
opacity6	RGB color	The opacity of the sixth color	opacity6 = color(1, 1, 1)
Ks	float	The specular value for plastic shading mode	Ks = 1.0
Kd	float	The diffuse value for plastic and matte shading modes	Kd = 0.5
Ka	float	The ambient value for plastic and matte shading modes	Ka = 0.5
roughness	float	The roughness value for plastic shading mode	roughness = 0.5
attenuation	float	The attenuation value for glow and halo shading modes	attenuation = 2
specularcolor	RGB color	Specular color for plastic shading mode	specularcolor = color(1, 1, 1)

View the colorramp.sl shader source

Download the colorramp package for Presenter 3D