1 // 2 // ShaderPlain.vsh 3 // 4 5 #define USE_PHONG (1) 6 7 attribute highp vec3 myVertex; 8 attribute highp vec3 myNormal; 9 attribute mediump vec2 myUV; 10 attribute mediump vec4 myBone; 11 12 varying mediump vec2 texCoord; 13 varying lowp vec4 colorDiffuse; 14 15 #if USE_PHONG 16 varying mediump vec3 position; 17 varying mediump vec3 normal; 18 #else 19 varying lowp vec4 colorSpecular; 20 #endif 21 22 uniform highp mat4 uMVMatrix; 23 uniform highp mat4 uPMatrix; 24 25 uniform highp vec3 vLight0; 26 27 uniform lowp vec4 vMaterialDiffuse; 28 uniform lowp vec3 vMaterialAmbient; 29 uniform lowp vec4 vMaterialSpecular; 30 31 void main(void) 32 { 33 highp vec4 p = vec4(myVertex,1); 34 gl_Position = uPMatrix * p; 35 36 texCoord = myUV; 37 38 highp vec3 worldNormal = vec3(mat3(uMVMatrix[0].xyz, uMVMatrix[1].xyz, uMVMatrix[2].xyz) * myNormal); 39 highp vec3 ecPosition = p.xyz; 40 41 colorDiffuse = dot( worldNormal, normalize(-vLight0+ecPosition) ) * vMaterialDiffuse + vec4( vMaterialAmbient, 1 ); 42 43 #if USE_PHONG 44 normal = worldNormal; 45 position = ecPosition; 46 #else 47 highp vec3 halfVector = normalize(ecPosition - vLight0); 48 49 highp float NdotH = max(-dot(worldNormal, halfVector), 0.0); 50 float fPower = vMaterialSpecular.w; 51 highp float specular = min( pow(NdotH, fPower), 1.0); 52 colorSpecular = vec4( vMaterialSpecular.xyz * specular, 1 ); 53 #endif 54 } 55
