How to modify texture coordinates in a ShaderFeature?
by 7nMs23fF · in Torque 3D Professional · 04/13/2011 (9:22 am) · 3 replies
I struggled to find documentation on this subject, but only found Pat Wilson's articles at gameclay.com. They were pretty straight-forward, but left me clueless as they only covered how to change the color of the material.
So my question is - how would I grab the texture coordinates, modify them, and feed them back to the shader? My goal is to scale the texture per axis.
Thanks in advance.
So my question is - how would I grab the texture coordinates, modify them, and feed them back to the shader? My goal is to scale the texture per axis.
Thanks in advance.
#2
04/15/2011 (10:00 am)
Cheers. Didn't get it to work yet, but I probably will after some experimenting. 
Torque Owner Ivan Mandzhukov
Liman3D
http://www.garagegames.com/community/resources/view/19161
Now,as I understand,you want to implement a scale on each axis.
Well, your processVert() should look like:
Var *inTex = getVertTexCoord( "texCoord" ); ShaderConnector *connectComp = dynamic_cast<ShaderConnector *>( componentList[C_CONNECTOR] ); Var *outTex = connectComp->getElement( RT_TEXCOORD ); outTex->setName( "texCoord" ); outTex->setStructName( "OUT" ); outTex->setType( "float2" ); outTex->mapsToSampler = true; Var *texScale= (Var *)( LangElement::find("texScale") ); if( !texScale) { texScale= new Var; texScale->setType( "float2" ); texScale->setName( "texScale" ); texScale->constSortPos = cspPotentialPrimitive; texScale->uniform = true; } meta->addStatement( new GenOp( "@ = @ * @;", outTex, inTex , texScale ) );Now your new multipliers are texScale.x and texScale.y