renderMonkey之简单的纹理处理实例（10.2）

来源：互联网发布：fm调频广播软件编辑：程序博客网时间：2024/05/22 04:54

效果图：

贴图：

顶点着色器：

uniform vec3 LightPosition;varying float LightIntensity;const float specularContribution=0.4;//<span style="color:#ff0000;">值越大高光越大</span>const float diffuseContribution=1.0-specularContribution;void main(void){   vec3 ecPosition=vec3(gl_ModelViewMatrix*gl_Vertex);   vec3 tnorm=normalize(gl_NormalMatrix*gl_Normal);   vec3 lightVec=normalize(LightPosition-ecPosition);   vec3 reflectVec=reflect(-lightVec,tnorm);   vec3 viewVec=normalize(-ecPosition);   float spec=clamp(dot(reflectVec,viewVec),0.0,1.0);   spec=pow(spec,16.0);   LightIntensity=diffuseContribution*max(dot(lightVec,tnorm),0.0)+specularContribution*spec;   gl_TexCoord[0]=gl_MultiTexCoord0;   gl_Position = ftransform();}

片元着色器：

uniform sampler2D EarthDay;varying float LightIntensity;void main(void){   vec3 lightColor=vec3(texture2D(EarthDay,gl_TexCoord[0].st));   gl_FragColor = vec4(lightColor*LightIntensity, 1.0 );//<span style="color:#ff0000;">整体参数传递</span>}

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