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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 vec2 vtexcoord0;
uniform mat4 modelmatrix;
uniform mat3 modelworld;
uniform vec3 modelcamera;
uniform vec2 texscroll;
varying mat3 world;
varying vec3 camvec;
varying vec2 texcoord0;
void main(void)
{
#define mpos vvertex
#define mquat vtangent
vec4 qxyz = mquat.xxyy*mquat.yzyz, qxzw = vec4(mquat.xzw, -mquat.w);
vec3 mtangent = (qxzw.yzw*mquat.zzy + qxyz.zxy)*vec3(-2.0, 2.0, 2.0) + vec3(1.0, 0.0, 0.0);
vec3 mnormal = (qxzw.zwx*mquat.yxx + qxyz.ywz)*vec3(2.0, 2.0, -2.0) + vec3(0.0, 0.0, 1.0);
gl_Position = modelmatrix * mpos;
texcoord0 = vtexcoord0 + texscroll;
camvec = modelworld * normalize(modelcamera - mpos.xyz);
vec3 wnormal = modelworld * mnormal;
vec3 wtangent = modelworld * mtangent;
vec3 wbitangent = cross(wnormal, wtangent) * (vtangent.w < 0.0 ? -1.0 : 1.0);
world = mat3(wtangent, wbitangent, wnormal);
}
[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]
varying mat3 world;
uniform vec2 envmapscale;
varying vec3 camvec;
uniform vec4 colorscale;
uniform vec2 fullbright;
uniform vec2 maskscale;
uniform sampler2D tex0;
uniform sampler2D tex1;
uniform samplerCube tex2;
uniform sampler2D tex3;
uniform sampler2D tex4;
fragdata(0, gcolor, vec4)
fragdata(1, gnormal, vec4)
fragdata(2, gglow, vec4)
varying vec2 texcoord0;
uniform float aamask;
void main(void)
{
vec4 diffuse = texture2D(tex0, texcoord0);
gcolor.rgb = diffuse.rgb*colorscale.rgb;
vec4 decal = texture2D(tex4, texcoord0);
gcolor.rgb = mix(gcolor.rgb, decal.rgb, decal.a);
vec3 normal = texture2D(tex3, texcoord0).rgb - 0.5;
normal = normalize(world * normal);
float spec = maskscale.x;
vec3 masks = texture2D(tex1, texcoord0).rgb;
spec *= masks.r;
vec3 camn = normalize(camvec);
float invfresnel = dot(camn, normal);
vec3 rvec = 2.0*invfresnel*normal - camn;
float rmod = envmapscale.x*clamp(invfresnel, 0.0, 1.0) + envmapscale.y;
vec3 reflect = textureCube(tex2, rvec).rgb;
gcolor.rgb = mix(gcolor.rgb, reflect, rmod*masks.b);
gcolor.a = 0.5*spec;
float glowk = max(maskscale.y*masks.g, fullbright.y), colork = max(fullbright.x-glowk, 0.0);
glowk /= glowk + colork + 1.0e-3;
gcolor.rgb = gcolor.rgb * (1.0 - 2.0*glowk*(glowk - 1.0));
#define packnorm 1.0-glowk
gnormal.rgb = normal*0.5 + 0.5;
#ifdef packnorm
gnormal.a = (packnorm);
#else
gnormal.a = 1.0;
#endif
}
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