mirror of
https://github.com/DrBeef/Doom3Quest.git
synced 2024-12-03 01:02:29 +00:00
71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
|
|
* This file is part of the D3wasm project (http://www.continuation-labs.com/projects/d3wasm)
|
|
* Copyright (c) 2019 Gabriel Cuvillier.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, version 3.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "glsl_shaders.h"
|
|
|
|
const char * const interactionPhongShaderFP = R"(
|
|
#version 100
|
|
precision highp float;
|
|
|
|
// In
|
|
varying vec2 var_TexDiffuse;
|
|
varying vec2 var_TexNormal;
|
|
varying vec2 var_TexSpecular;
|
|
varying vec4 var_TexLight;
|
|
varying lowp vec4 var_Color;
|
|
varying vec3 var_L;
|
|
varying vec3 var_V;
|
|
|
|
// Uniforms
|
|
uniform lowp vec4 u_diffuseColor;
|
|
uniform lowp vec4 u_specularColor;
|
|
uniform float u_specularExponent;
|
|
uniform sampler2D u_fragmentMap0; // u_bumpTexture
|
|
uniform sampler2D u_fragmentMap1; // u_lightFalloffTexture
|
|
uniform sampler2D u_fragmentMap2; // u_lightProjectionTexture
|
|
uniform sampler2D u_fragmentMap3; // u_diffuseTexture
|
|
uniform sampler2D u_fragmentMap4; // u_specularTexture
|
|
|
|
// Out
|
|
// gl_FragCoord
|
|
|
|
void main(void)
|
|
{
|
|
vec3 L = normalize(var_L);
|
|
vec3 V = normalize(var_V);
|
|
vec3 N = normalize(2.0 * texture2D(u_fragmentMap0, var_TexNormal.st).agb - 1.0);
|
|
|
|
float NdotL = clamp(dot(N, L), 0.0, 1.0);
|
|
|
|
vec3 lightProjection = texture2DProj(u_fragmentMap2, var_TexLight.xyw).rgb;
|
|
vec3 lightFalloff = texture2D(u_fragmentMap1, vec2(var_TexLight.z, 0.5)).rgb;
|
|
vec3 diffuseColor = texture2D(u_fragmentMap3, var_TexDiffuse).rgb * u_diffuseColor.rgb;
|
|
vec3 specularColor = 2.0 * texture2D(u_fragmentMap4, var_TexSpecular).rgb * u_specularColor.rgb;
|
|
|
|
vec3 R = -reflect(L, N);
|
|
float RdotV = clamp(dot(R, V), 0.0, 1.0);
|
|
float specularFalloff = pow(RdotV, u_specularExponent);
|
|
|
|
vec3 color;
|
|
color = diffuseColor;
|
|
color += specularFalloff * specularColor;
|
|
color *= NdotL * lightProjection;
|
|
color *= lightFalloff;
|
|
|
|
gl_FragColor = vec4(color, 1.0) * var_Color;
|
|
}
|
|
)";
|