HLSL shader -> Max .. tiling?

TSM · May 2008

Hey guys,

I'm learning HLSL using Ben's DVD series (great stuff!) and I am using a shader I wrote for normal maps, diffuse, and specular and brought it into Max. It would great but I would love to use this for terrain so it needs to tile. Is there a MAX function that I can just type into my shader to allow for that?

Or maybe there is a document that Autodesk provides has this - but I couldn't find it.

I tried to try to use the standard max material (since it can tile) to affect the shader but to no avail - I just ran out of ideas.

Thanks!

TSM

CrazyButcher · May 2008

multiply the texcoords before sampling (tex2D(..)), performance wise it's often more optimally to multiply in the vertexshader.

// create a float variable outside the main function of vertexshader
// it will get a ui spinner widget in which you can adjust tiling

float tileScale
<
	string UIType = "FloatSpinner";
	float UIMin = 0.01;
	float UIMax = 100.0;
	float UIStep = 0.01;
	string UIName = "tile scale";
> = 1.0;

...

// somewhere in vertexshader you would do
// of course might look different depending on the
// naming of structs for input/output and so on.

OUT.texcoordTiled = IN.texcoord * tilescale;

TSM · May 2008

Works pefectly! Thanks!!

HLSL shader -> Max .. tiling?

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