48 lines
1.2 KiB
GLSL
48 lines
1.2 KiB
GLSL
// Copyright 2017 Mark Callow
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
#version 450
|
|
|
|
#extension GL_ARB_separate_shader_objects : enable
|
|
#extension GL_ARB_shading_language_420pack : enable
|
|
|
|
layout (binding = 0) uniform UBO
|
|
{
|
|
mat4 projection;
|
|
mat4 modelView;
|
|
mat4 invModelView;
|
|
mat4 uvwTransform;
|
|
float lodBias;
|
|
} ubo;
|
|
|
|
layout (binding = 1) uniform samplerCube samplerColor;
|
|
|
|
layout (location = 0) in vec3 inPos;
|
|
layout (location = 1) in vec3 inNormal;
|
|
layout (location = 2) in float inLodBias;
|
|
layout (location = 3) in vec3 inViewVec;
|
|
layout (location = 4) in vec3 inLightVec;
|
|
|
|
layout (location = 0) out vec4 outFragColor;
|
|
|
|
void main()
|
|
{
|
|
vec3 cI = normalize (inPos);
|
|
vec3 cR = reflect (cI, normalize(inNormal));
|
|
|
|
//cR = vec3(ubo.invModelView * vec4(cR, 0.0));
|
|
cR = vec3(ubo.uvwTransform * ubo.invModelView * vec4(cR, 0.0));
|
|
|
|
vec4 color = texture(samplerColor, cR, inLodBias);
|
|
|
|
vec3 N = normalize(inNormal);
|
|
vec3 L = normalize(inLightVec);
|
|
vec3 V = normalize(inViewVec);
|
|
vec3 R = reflect(-L, N);
|
|
vec3 ambient = vec3(0.5) * color.rgb;
|
|
vec3 diffuse = max(dot(N, L), 0.0) * vec3(1.0);
|
|
vec3 specular = pow(max(dot(R, V), 0.0), 16.0) * vec3(0.5);
|
|
outFragColor = vec4(ambient + diffuse * color.rgb + specular, 1.0);
|
|
|
|
}
|