cocos2dx 效果

发布时间：2020-12-14 19:50:43 所属栏目：百科来源：网络整理

导读：fragmenshader里面 vec4 texColor = texture2D(CC_Texture0,v_texCoord); float distance = abs(v_texCoord[0] + v_texCoord[1] - offset) / 1.414; distance = 1 - (1 / width)*distance; distance = max(distance,0); vec4 sample = vec4(0.0,0.0,0.0); sa

fragmenshader里面

vec4 texColor = texture2D(CC_Texture0,v_texCoord);

float distance = abs(v_texCoord[0] + v_texCoord[1] - offset) / 1.414;
distance = 1 - (1 / width)*distance;
distance = max(distance,0);
vec4 sample = vec4(0.0,0.0,0.0);
sample[0] = color[0] * distance;
sample[1] = color[1] * distance;
sample[2] = color[2] * distance;
sample[3] = distance;

float alpha = sample[3] * texColor[3];
texColor[0] = texColor[0] + sample[0] * alpha*factor;
texColor[1] = texColor[1] + sample[1] * alpha*factor;
texColor[2] = texColor[2] + sample[2] * alpha*factor;

gl_FragColor = v_fragmentColor * texColor;

offset是传入的参数0-2变化的控制的是光线位移 width就是线的宽度。factor是光线透明度。

（编辑：李大同）

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