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[require]
GLSL >= 1.10
[vertex shader]
#version 120
#extension GL_ARB_texture_rectangle : enable
#define flat
#define texture2DRectOffset(sampler, coords, offset) texture2DRect(sampler, coords + vec2(offset))
#define shadow2DRectOffset(sampler, coords, offset) shadow2DRect(sampler, coords + vec2(offset))
attribute vec4 vvertex, vtangent;
attribute vec3 vnormal;
attribute vec2 vtexcoord0;
uniform mat4 camprojmatrix;
uniform vec2 texgenscroll;
varying vec2 texcoord0;
varying mat3 world;
uniform vec3 camera;
varying vec3 camvec;
uniform vec4 glowcolor;
uniform vec4 specscale;
uniform vec4 envscale;
void main(void)
{
gl_Position = camprojmatrix * vvertex;
texcoord0 = vtexcoord0 + texgenscroll;
vec3 bitangent = cross(vnormal, vtangent.xyz) * vtangent.w;
world = mat3(vtangent.xyz, bitangent, vnormal);
camvec = camera - vvertex.xyz;
}
[fragment shader]
#version 120
#extension GL_ARB_texture_rectangle : enable
#define flat
#define texture2DRectOffset(sampler, coords, offset) texture2DRect(sampler, coords + vec2(offset))
#define shadow2DRectOffset(sampler, coords, offset) shadow2DRect(sampler, coords + vec2(offset))
#define fragdata(loc, name, type)
#define gcolor gl_FragData[0]
#define gnormal gl_FragData[1]
#define gglow gl_FragData[2]
uniform vec4 colorparams;
uniform sampler2D diffusemap, normalmap;
varying mat3 world;
fragdata(0, gcolor, vec4)
fragdata(1, gnormal, vec4)
fragdata(2, gglow, vec4)
varying vec2 texcoord0;
varying vec3 camvec;
uniform sampler2D glowmap;
uniform samplerCube envmap;
uniform vec4 glowcolor;
uniform vec4 specscale;
uniform vec4 envscale;
void main(void)
{
vec3 camvecn = normalize(camvec);
#define dtc texcoord0
vec4 diffuse = texture2D(diffusemap, dtc);
vec3 bump = texture2D(normalmap, dtc).rgb*2.0 - 1.0;
vec3 bumpw = normalize(world * bump);
gcolor.rgb = diffuse.rgb*colorparams.rgb;
gcolor.a = diffuse.a*specscale.x * 0.5;
float invfresnel = dot(camvecn, bumpw);
vec3 rvec = 2.0*bumpw*invfresnel - camvecn;
vec3 reflect = textureCube(envmap, rvec).rgb;
vec3 rmod = envscale.xyz*diffuse.a;
gcolor.rgb = mix(gcolor.rgb, reflect, rmod*clamp(1.0 - invfresnel, 0.0, 1.0));
vec3 glow = texture2D(glowmap, dtc).rgb;
glow *= glowcolor.xyz;
float colork = max(gcolor.r, max(gcolor.g, gcolor.b)), glowk = max(glow.r, max(glow.g, glow.b));
glowk /= glowk + colork + 1.0e-3;
gcolor.rgb = mix(gcolor.rgb, glow, glowk) * (1.0 - 2.0*glowk*(glowk - 1.0));
#define packnorm 1.0-glowk
gnormal.rgb = bumpw*0.5 + 0.5;
#ifdef packnorm
gnormal.a = (packnorm);
#else
gnormal.a = 1.0;
#endif
}
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