precision highp float;

#endif

​

uniform vec4       uMaterialColor;

uniform vec2       uResolution;

​

uniform sampler2D  u_shadowMap;

uniform sampler2D  u_matcap;

uniform vec2       u_mouse;

uniform float      u_time;

​

varying vec4       v_lightCoord;

varying vec3       v_camera;

​

varying vec4       vVertexPosition;

varying vec3       vVertexNormal;

varying vec2       vVertTexCoord;

​

#define PLATFORM_WEBGL

#define LIGHT_SHADOWMAP       u_shadowMap

#define LIGHT_COORD           v_lightCoord

#define LIGHT_SHADOWMAP_SIZE  512.0 

​

#include "lygia/lighting/sphereMap.glsl"

#include "lygia/lighting/shadow.glsl"

​

void main() {

  vec4 color = vec4(0.5, 0.5, 0.5, 1.0);

  vec2 pixel = 1.0 / uResolution;

  vec2 st = gl_FragCoord.xy * pixel;

  vec2 uv = vVertTexCoord;

  // Floor Pattern

  if (uMaterialColor.r != 0.0)

    color = sphereMap(u_matcap, normalize(vVertexNormal), -normalize(v_camera));

​

    color.rgb *= sampleShadowPCF(u_shadowMap, vec2(LIGHT_SHADOWMAP_SIZE), v_lightCoord.xy, v_lightCoord.z - 0.005) * 0.8 + 0.2;

  gl_FragColor = color;

}