战斗状态shader

[972579559]

拿qq录屏转的gif凑合看下 是有带一点呼吸的动态效果

//战斗状态特效

CCEffect %{
  techniques:
  - passes:
    - vert: vs
      frag: fs
      blendState:
        targets:
        - blend: true
      rasterizerState:
        cullMode: none
      properties:
        texture: { value: white, editor: { visible: false } }
}%

CCProgram vs %{

precision highp float;

#include <cc-global>
#include <cc-local>

in vec3 a_position;
in vec4 a_color;
in vec4 a_color0;

in vec2 a_uv0;
out vec2 v_uv0;

out vec4 v_light;
#if USE_TINT
  out vec4 v_dark;
#endif

void main () {
  mat4 mvp;

  #if CC_USE_MODEL
    mvp = cc_matViewProj * cc_matWorld;
  #else
    mvp = cc_matViewProj;
  #endif

  v_uv0 = a_uv0;

  v_light = a_color;
  #if USE_TINT
    v_dark = a_color0;
  #endif

  gl_Position = mvp * vec4(a_position, 1);
}

}%

CCProgram fs %{

precision highp float;

#include <cc-global>

uniform sampler2D texture;
in vec2 v_uv0;

in vec4 v_light;
#if USE_TINT
  in vec4 v_dark;
#endif

void main () {
  vec4 texColor = vec4(1.0);
  texColor *= texture(texture, v_uv0);
  vec4 o;
  #if USE_TINT
    o.a = v_light.a * texColor.a;
    o.rgb = ((texColor.a - 1.0) * v_dark.a + 1.0 - texColor.rgb) * v_dark.rgb + texColor.rgb * v_light.rgb;
  #else
    o = texColor * v_light;
  #endif

  #if frozen //冰冻
  float r = abs(o.r - o.g - o.b) * 1.5;
  float g = abs(o.g - o.b - o.r) * 1.5;
  float b = abs(o.b - o.r - o.g) * 1.5;
  o = vec4(r, g, b, o.a);
  #endif

  #if stone //石化
  float gray = (o.r + o.g + o.b) / 3.0;
  o = vec4(gray, gray, gray, o.a);
  #endif

  #if poison //中毒
  o.r *= 0.0;
  o.g *= 0.8 + sin(cc_time.x * 4.0) * 0.2;
  o.b *= 0.0;
  #endif

  #if burn //灼烧
  o.r += abs(sin(cc_time.x * 2.0)) * 0.2;
  o.g *= 0.5;
  o.b *= 0.5;
  #endif

  #if hidden //隐身
  o.rgb *= 0.9;
  o.a *= 0.5+ sin(cc_time.x * 4.0) * 0.1;
  #endif

  #if golden //金身
  o.r *= 1.5 + sin(cc_time.x * 2.0) * 0.2;
  o.g = o.r * 0.9;
  o.b *= 0.1;
  o.a *= 0.9;
  #endif

  #if virtual //虚化
  float edge = max(max(o.r, o.g), o.b) - min(min(o.r, o.g), o.b);
  o.rgb = vec3(edge * 2.0) * vec3(0.5, 1.0, 0.8);
  o.a *= 0.9+ sin(cc_time.x * 4.0) * 0.1;
  #endif

  #if slow //迟缓
  o.r *= 0.6 + sin(cc_time.x * 1.0) * 0.1;
  o.g *= 1.2 + sin(cc_time.x * 1.0) * 0.2;
  o.b *= 1.5;
  #endif

  gl_FragColor = o;
}

}%

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