您最多选择25个主题
主题必须以中文或者字母或数字开头,可以包含连字符 (-),并且长度不得超过35个字符
31 行
1023 B
31 行
1023 B
#if ETC1_EXTERNAL_ALPHA
|
|
TEXTURE2D(_AlphaTex); SAMPLER(sampler_AlphaTex);
|
|
float _EnableAlphaTexture;
|
|
#endif
|
|
|
|
PackedVaryings vert(Attributes input)
|
|
{
|
|
Varyings output = (Varyings)0;
|
|
output = BuildVaryings(input);
|
|
PackedVaryings packedOutput = PackVaryings(output);
|
|
return packedOutput;
|
|
}
|
|
|
|
half4 frag(PackedVaryings packedInput) : SV_TARGET
|
|
{
|
|
Varyings unpacked = UnpackVaryings(packedInput);
|
|
UNITY_SETUP_INSTANCE_ID(unpacked);
|
|
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(unpacked);
|
|
|
|
SurfaceDescriptionInputs surfaceDescriptionInputs = BuildSurfaceDescriptionInputs(unpacked);
|
|
SurfaceDescription surfaceDescription = SurfaceDescriptionFunction(surfaceDescriptionInputs);
|
|
|
|
#if ETC1_EXTERNAL_ALPHA
|
|
float4 alpha = SAMPLE_TEXTURE2D(_AlphaTex, sampler_AlphaTex, unpacked.texCoord0.xy);
|
|
surfaceDescription.Color.a = lerp (surfaceDescription.Color.a, alpha.r, _EnableAlphaTexture);
|
|
#endif
|
|
|
|
surfaceDescription.Color *= unpacked.color;
|
|
|
|
return surfaceDescription.Color;
|
|
}
|