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Again I am comparing to Maya's Hypershade, where you have all these nodes for adjusting a texture's HSV (Hue Saturation and Value), levels, gamma, curves, brightness and contrast etc. Does Houdini have any equivalents in the /mat context? I see all the nodes in /img, but does that mean I will have to leave /mat and adjust my textures in /img or is there a way to keep things inside the /mat context? ----- Or is the correct/intended workflow that you work with your textures over in /img and then bring them into your shader via op:img/img1/null1"?