Yuval Tassa
dca295dde2
PiperOrigin-RevId: 960554436 Change-Id: Ife6f5c760993ad185e9421cd7b3ce7fd06fffc90
64 lines
2.4 KiB
Plaintext
64 lines
2.4 KiB
Plaintext
// Copyright 2025 DeepMind Technologies Limited
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
material {
|
|
name : phong_2d_reflect,
|
|
shadingModel : specularGlossiness,
|
|
postLightingBlending : add,
|
|
flipUV : false,
|
|
parameters : [
|
|
{ type : float4, name : BaseColorFactor },
|
|
{ type : float, name : SpecularFactor },
|
|
{ type : float, name : GlossinessFactor },
|
|
{ type : float, name : EmissiveFactor },
|
|
{ type : float, name : Reflectance },
|
|
{ type : float3, name : UvScale },
|
|
{ type : float3, name : UvOffset },
|
|
{ type : sampler2d, name : BaseColor },
|
|
{ type : sampler2d, name : Reflection }
|
|
],
|
|
variables : [
|
|
vertex_pos
|
|
]
|
|
}
|
|
|
|
vertex {
|
|
void materialVertex(inout MaterialVertexInputs material) {
|
|
material.vertex_pos = getPosition();
|
|
}
|
|
}
|
|
|
|
fragment {
|
|
void material(inout MaterialInputs material) {
|
|
vec2 uv = variable_vertex_pos.xy * materialParams.UvScale.xy + materialParams.UvOffset.xy;
|
|
vec2 screen_uv = gl_FragCoord.xy * getResolution().zw;
|
|
|
|
prepareMaterial(material);
|
|
material.baseColor = materialParams.BaseColorFactor;
|
|
material.baseColor *= texture(materialParams_BaseColor, uv);
|
|
material.specularColor = vec3(materialParams.SpecularFactor);
|
|
material.glossiness = materialParams.GlossinessFactor;
|
|
material.emissive = vec4(
|
|
materialParams.BaseColorFactor.rgb * materialParams.EmissiveFactor, 0.0);
|
|
|
|
// The reflection is radiance arriving from the mirror direction, so it is
|
|
// weighted by the Fresnel term and added after lighting. Reflectance is
|
|
// the reflectivity at normal incidence; grazing angles approach a mirror.
|
|
vec4 reflection = texture(materialParams_Reflection, screen_uv);
|
|
float f0 = materialParams.Reflectance;
|
|
float fresnel = f0 + (1.0 - f0) * pow(1.0 - getNdotV(), 5.0);
|
|
material.postLightingColor = vec4(reflection.rgb * fresnel, 0.0);
|
|
}
|
|
}
|