Simple glass

From GameStudio Wiki

technique SimpleGlass{
	pass p0{
		AlphaBlendEnable=True;
		Zenable = True;
		AlphaTestEnable=True;
		ZwriteEnable = False;
//		ZwriteEnable = True;
		CULLMODE = CCW;
		BlendOp=5;
		texture~[0]=<mtlSkin1>;
		vertexShaderConstant~[0]=<matWorldViewProj>;
		vertexShaderConstant~[4]=<matWorld>;
		vertexShaderConstant~[7]=<vecViewPos>;
		vertexShaderConstant~[9]= <vecFog>;//Lion
		vertexShaderConstant~[12]={0.5,1.0,2.0,0.0};
		vertexShaderConstant~[16]=<matWorldView>;

		vertexShader =
		asm{
			vs.1.1
			dcl_position v0
			dcl_normal v3
			dp3 r0.x, v3, c4
			dp3 r0.y, v3, c5
			dp3 r0.z, v3, c6
			dp3 r1.x, r0, r0
			rsq r0.w, r1.x
			dp4 r1.x, v0, c4
			dp4 r1.y, v0, c5
			dp4 r1.z, v0, c6
			mul r0.xyz, r0, r0.w
			add r1.xyz, r1, -c7
			dp3 r2.x, r1, r0
			add r0.w, r2.x, r2.x
			mad oT0.xyz, r0, -r0.w, r1
			// Fog calculations
			mov r1.w,c9.w
			dp4 r0,v0,c18 // distance to camera position
			add r0,r0,-c9.x // distance-fog_start
			mad r0.x,-r0.x,c9.z,r1.w // 1-(distance-fog_start)*(1/(fog_end-fog_start))
			max oFog,r0.x,c12.w // clamp with custom max value
			// Pass the texture coordinates through
			dp4 oPos.x, v0, c0
			dp4 oPos.y, v0, c1
			dp4 oPos.z, v0, c2
			dp4 oPos.w, v0, c3
		};
	pixelShader=
		asm{
			ps.1.1
			tex t0
			mov r0, t0
		};
	}
}