You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
35 lines
1.2 KiB
35 lines
1.2 KiB
uniform sampler2D U_MainTexture;
|
|
varying vec3 V_Normal;
|
|
varying vec4 V_WorldPos;//当前的位置
|
|
varying vec2 V_Texcoord;
|
|
|
|
void main() {
|
|
|
|
vec3 lightPos = vec3(10.0, 10.0, 0.0);
|
|
vec3 L=lightPos;
|
|
L = normalize(L);
|
|
vec3 n = normalize(V_Normal);
|
|
|
|
|
|
//ambient
|
|
vec4 AmbientLightColor = vec4(0.2, 0.2, 0.2, 1.0);
|
|
vec4 AmbientMaterial = vec4(0.2, 0.2, 0.2, 1.0);
|
|
vec4 AmbientColor = AmbientLightColor*AmbientMaterial;
|
|
|
|
//diffuse
|
|
vec4 DiffuseLightColor = vec4(1.0,1.0,1.0,1.0);
|
|
vec4 DiffuseMaterial = vec4(0.8, 0.8, 0.8, 1.0);
|
|
vec4 diffuseColor = DiffuseLightColor*DiffuseMaterial*max(0.0, dot(L,n));
|
|
|
|
//specular
|
|
vec4 SpecularLightColor = vec4(1.0,1.0,1.0,1.0);
|
|
vec4 SpecularMaterial = vec4(0.9,0.9,0.9,1.0);
|
|
vec3 reflectDir = normalize(reflect(-L,n));//-L就是光线的入射方向向量，以法线为基础计算方式向量
|
|
vec3 viewDir = normalize(vec3(0.0) - V_WorldPos.xyz);//vec3(0.0)表示已中心为观察点，这里求的是眼睛到物体的视线向量
|
|
vec4 specularColor = SpecularLightColor*SpecularMaterial*pow(max(0.0,dot(viewDir,reflectDir)),128.0);
|
|
|
|
|
|
//gl_FragColor = texture2D(U_MainTexture, V_Texcoord) * (AmbientColor + diffuseColor + specularColor);
|
|
gl_FragData[0] = AmbientColor + texture2D(U_MainTexture, V_Texcoord) * diffuseColor + specularColor;
|
|
gl_FragData[1] = vec4(1.0);
|
|
}
|