// Proxy shader for canvas textures

void SetupMaterial( inout Material mat )
{
	// canvas textures are upside-down when used by models
	// this is the default use-case here, so for other situations,
	// there's a macro for it™
#ifdef STRAIGHT_UVS
	mat.Base = texture(scrtex,vTexCoord.st);
#else
	mat.Base = texture(scrtex,vec2(vTexCoord.s,1.-vTexCoord.t));
#endif
	// drawing with render styles applied can alter the alpha of the
	// canvas itself, which may not be intended, so cap it to 100% here
	// unless explicitly disabled
#ifndef DONT_FIX_ALPHA
	mat.Base.a = 1.;
#endif
	// treat a color (usually pure black) as fully transparent
	// used by some special textures
#ifdef ALPHA_KEY
	if ( mat.Base.rgb == ALPHA_KEY )
		mat.Base.a = 0.;
#endif
	mat.Normal = ApplyNormalMap(vTexCoord.st);
	// by default, canvas textures are treated as fullbright
#ifndef NO_FULLBRIGHT
	mat.Bright = vec4(1.);
#endif
}