Houdini Redshift Material Rendering - Succulent Breakdown

Applied Material Examples

Process Shots

Geo Network

Breakdown

Plant

The Color (diffuse_color) group consists of laying two ramps on top of a base green color. RSColorConstant1 is the base green of the plant with RSColorConstant2 (orange) blending to match the orange hints of the leaves in the reference image in RSColorMix1. This ramp (RSRamp3) has noise for an organic splotchiness in the orange. RSColorMix2 ramps in the visible red points of the succulent’s leaves. ​ The Sheen consists of two noises, MaxonNoise2 and MaxonNoise3, which control sheen. MaxonNoise2 controls major sheen splotches. Areas without sheen are made reflective through this noise being plugged into the refl_roughness. MaxonNoise7 adds noise to the sheen itself, breaking up the texture of the major solid sheen sections with small organic splotches. To have this small noise show up in the sheen’s splotches MaxoinNoise7 is masked onto MaxonNoise2 in RSColorMix4. To display sheen without effecting reflectivity RSColorMix4 is plugged into sheen_roughness. ​ The Subsurface group creates Sub-Surface noise, as the area in which subsurface is generally distributed is not a constant mass.

Container

The Overall Pot Color group is made up of labeled color constant nodes identifying the sections of the pot that these nodes color. These nodes color specific portions of the container due to the mask consisting o a constant ramp. The creation of an the anled stripe is done through rotating the container's UVs through the uvproject1 node in the geo tree. From trial and error it was concluded that it is not possible to rotate a ramp a specific amount in the Redshift material builder, therefore the bottom stripe visible in the reference image has been omitted from the final product. The Pot Bump Map section composes the bump map (texture) on the pot.

Stones

The Cactus geometry line for the Stones category creates an attribute which allows for the application of a random color for every stone in the mesh. In the material RSUserDataColor1 imports these random colors into the rendered. RSColorCorrection1 removes the saturation of these stones. RSColorMix1 and RSColorMix 2 apply brown color to these stones. Both Color Mixes have different values of brown within them and one is masked onto the other via a noise in RSColorMix2 – creating an organic speckle.

Pot and Dirt

The composition of the Pot and Dirt material is the same. Hardly visible, the roughness is reasonably brought up on their reflections in order to not attract attention or look unnatural.

References

Renders

Render time: 3 min 48sec