#ifdef ENABLE_TEXTURE_2D
uniform sampler2D tex2D;
uniform float enableTex2D;
#endif

#ifdef ENABLE_TEXTURE_3D
uniform sampler3D tex3D;
uniform float enableTex3D;
#endif

#ifdef ENABLE_LIGHTING
varying vec4 ambient;
#endif

#ifdef SHADOW_RENDER
uniform sampler2DShadow shadowTex;
uniform vec4 shadowColor;

varying vec4 shadowCoord;
#endif

void main()
{
	vec4 color;

	color = gl_Color;
	
	vec4 white = vec4(1.0, 1.0, 1.0, 1.0);

	#ifdef ENABLE_TEXTURE_2D
    vec4 texColor2D;
	texColor2D = texture2D(tex2D, gl_TexCoord[0].xy);
	texColor2D = mix(white, texColor2D, enableTex2D);
	// modulate mode only
	color *= texColor2D;
	#endif

	#ifdef ENABLE_TEXTURE_3D
	vec4 texColor3D;	
	texColor3D = texture3D(tex3D, gl_TexCoord[0].xyz);
	texColor3D = mix(white, texColor3D, enableTex3D);
	color *= texColor3D;
	#endif

	#ifdef SHADOW_RENDER
	float notInShadow = textureProj(shadowTex, shadowCoord);
	vec4 mixedColor = vec4(mix(color.rgb, shadowColor.rgb, shadowColor.a), 1.0);
	color = mix(mixedColor, color, notInShadow);
	#endif

	// no need to set color when creating shadow
	#ifndef SHADOW_CREATE
	gl_FragColor = color;
	#endif
}