Remove old branding.

shaders/glsl/LogoAnimated.fp

@@ -1,94 +0,0 @@
-// animated SWWM GZ logo
-
-#define overlay(a,b) (a<0.5)?(2.0*a*b):(1.0-(2.0*(1.0-a)*(1.0-b)))
-const float pi = 3.14159265358979323846;
-
-vec2 warpcoord( in vec2 uv )
-{
-	vec2 offset;
-	offset.y = sin(pi*2.*(uv.x*8.+timer*.25))*.005;
-	offset.x = cos(pi*2.*(uv.y*4.+timer*.25))*.005;
-	return uv+offset;
-}
-
-// based on gimp color to alpha, but simplified
-vec4 blacktoalpha( in vec4 src )
-{
-	vec4 dst = src;
-	float alpha = 0.;
-	float a;
-	a = clamp(dst.r,0.,1.);
-	if ( a > alpha ) alpha = a;
-	a = clamp(dst.g,0.,1.);
-	if ( a > alpha ) alpha = a;
-	a = clamp(dst.b,0.,1.);
-	if ( a > alpha ) alpha = a;
-	if ( alpha > 0. )
-	{
-		float ainv = 1./alpha;
-		dst.rgb *= ainv;
-	}
-	dst.a *= alpha;
-	return dst;
-}
-#ifdef NO_BILINEAR
-#define BilinearSample(x,y,z,w) texture(x,y)
-#else
-vec4 BilinearSample( in sampler2D tex, in vec2 pos, in vec2 size, in vec2 pxsize )
-{
-	vec2 f = fract(pos*size);
-	pos += (.5-f)*pxsize;
-	vec4 p0q0 = texture(tex,pos);
-	vec4 p1q0 = texture(tex,pos+vec2(pxsize.x,0));
-	vec4 p0q1 = texture(tex,pos+vec2(0,pxsize.y));
-	vec4 p1q1 = texture(tex,pos+vec2(pxsize.x,pxsize.y));
-	vec4 pInterp_q0 = mix(p0q0,p1q0,f.x);
-	vec4 pInterp_q1 = mix(p0q1,p1q1,f.x);
-	return mix(pInterp_q0,pInterp_q1,f.y);
-}
-#endif
-
-void SetupMaterial( inout Material mat )
-{
-	// store these to save some time
-	vec2 size = vec2(textureSize(Layer1,0));
-	vec2 pxsize = 1./size;
-	// y'all ready for this multilayered madness?
-	vec2 uv = vTexCoord.st;
-	// base blank layer
-	vec4 base = vec4(0.,0.,0.,1.);
-	// first layer, blend
-	vec4 tmp = BilinearSample(Layer1,uv,size,pxsize);
-	base.rgb = mix(base.rgb,tmp.rgb,tmp.a);
-	// second layer, warp then add
-	tmp = BilinearSample(Layer2,warpcoord(uv),size,pxsize);
-	base.rgb += tmp.rgb;
-	// third layer, multiply
-	tmp = BilinearSample(Layer3,uv,size,pxsize);
-	base.rgb *= tmp.rgb;
-	// fourth layer, add
-	tmp = BilinearSample(Layer4,uv,size,pxsize);
-	base.rgb += tmp.rgb;
-	// fifth layer, add
-	tmp = BilinearSample(Layer5,uv,size,pxsize);
-	base.rgb += tmp.rgb;
-	// first layer again, overlay (w/ alpha blend)
-	tmp = BilinearSample(Layer1,uv,size,pxsize);
-	vec4 tmp2;
-	tmp2.r = overlay(base.r,tmp.r);
-	tmp2.g = overlay(base.g,tmp.g);
-	tmp2.b = overlay(base.b,tmp.b);
-	base.rgb = mix(base.rgb,tmp2.rgb,tmp.a);
-	// black to alpha
-	base = blacktoalpha(base);
-	// add alpha of first layer
-	base.a += BilinearSample(Layer1,uv,size,pxsize).a;
-	// sixth layer, alpha blend
-	tmp = BilinearSample(Layer6,uv,size,pxsize);
-	tmp2.a = tmp.a+base.a*(1-tmp.a);
-	tmp2.rgb = (tmp.rgb*tmp.a+base.rgb*base.a*(1-tmp.a))/tmp2.a;
-	// clamp
-	tmp2 = clamp(tmp2,vec4(0.),vec4(1.));
-	// ding, logo's done
-	mat.Base = tmp2;
-}