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Re: Tutorial - Gradient Mapping & UDK
is anyone else having trouble viewing the 1st image of the tutorial? -
Tutorial - Gradient Mapping & UDK
This week on Idol Gives Back Part 1: Generating color textures from heightmaps in PS Part 2: Doing the same thing in a realtime shader in UDK Part 3: More crazy ideas. So, a bit rushed but I wanted to get this quick tut out there, I hope it atleast gets some of you guys' creative juices going. A quick runthrough of some of… -
Re: Tutorial - Gradient Mapping & UDK
Fixed the images in the OP, yay. -
Re: Tutorial - Gradient Mapping & UDK
Gradient maps can be used for more than just diffuse and emissive. Im Making a shader that can blend between rubber, plastic, metal, crystal, and emissive material properties, based on a gradient map. i just stack gradients that represent masks for each material property. i plan on using this to define spec, gloss,… -
Re: Tutorial - Gradient Mapping & UDK
Great stuff, guys! And ofcourse you make some great points as for what a true gradient node could do - in my mind though, it would need to offer unlimited colors on the gradient to compete with Photoshop for doing certain things, but to be sure, this is great work and a big step on the way. D1ver, I don't know how you do… -
Re: Tutorial - Gradient Mapping & UDK
D1ver: Thanks. I was about to write in commentary that the ordering issue could be solved with a simple bubble sort like you did. I didn't put it in though as the whole of that HLSL block gets evaluated for EVERY PIXEL of the material at EVERY draw call its visible. On a simple thing like this it doesn't add that much… -
Re: Tutorial - Gradient Mapping & UDK
This is the best thread ever. You are all awesome. My puny artist brain stands in awe. -
Re: Tutorial - Gradient Mapping & UDK
Vailias: That's interesting, but what would you say the benefit to this procedural method is? EDIT: As a start to a proper gradient node it's cool - you'd need an interface though! :) -
Re: Tutorial - Gradient Mapping & UDK
The only issue with procedurally gradient mapping in udk atm is the number of lerps you'd wind up putting in for more than a single color change. if you want a 2 color "gradient node" just make 2 color constants and lerp between them with the alpha being whatever your were gradienting over. You could do it in a custom node… -
Re: Tutorial - Gradient Mapping & UDK
HP: Thanks dude, knew it would tickle a certain slice of the population here :) d1ver: Thanks - you're right, and as I said, it lends itself best to tiling organic stuff for the PS texture creation, shader-wise the possibilities are endless. I don't have a problem with the texture lookup so far, it basically eliminates any…
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