155 lines
6.2 KiB
Plaintext
155 lines
6.2 KiB
Plaintext
|
!!permu BUMP
|
||
|
|
!!permu SPECULAR
|
||
|
|
!!permu OFFSETMAPPING
|
||
|
|
!!permu SKELETAL
|
||
|
|
!!permu FOG
|
||
|
|
!!cvarf r_glsl_offsetmapping_scale
|
||
|
|
|
||
|
|
//this is the main shader responsible for realtime dlights.
|
||
|
|
|
||
|
|
//texture units:
|
||
|
|
//s0=diffuse, s1=normal, s2=specular, s3=shadowmap
|
||
|
|
//custom modifiers:
|
||
|
|
//PCF(shadowmap)
|
||
|
|
//CUBE(projected cubemap)
|
||
|
|
|
||
|
|
|
||
|
|
varying vec2 tcbase;
|
||
|
|
varying vec3 lightvector;
|
||
|
|
#if defined(SPECULAR) || defined(OFFSETMAPPING)
|
||
|
|
varying vec3 eyevector;
|
||
|
|
#endif
|
||
|
|
#if defined(PCF) || defined(CUBE)
|
||
|
|
varying vec4 vshadowcoord;
|
||
|
|
uniform mat4 l_projmatrix;
|
||
|
|
#endif
|
||
|
|
#ifdef VERTEX_SHADER
|
||
|
|
#include "sys/skeletal.h"
|
||
|
|
uniform vec3 l_lightposition;
|
||
|
|
attribute vec2 v_texcoord;
|
||
|
|
#if defined(SPECULAR) || defined(OFFSETMAPPING)
|
||
|
|
uniform vec3 e_eyepos;
|
||
|
|
#endif
|
||
|
|
void main ()
|
||
|
|
{
|
||
|
|
vec3 n, s, t, w;
|
||
|
|
gl_Position = skeletaltransform_wnst(w,n,s,t);
|
||
|
|
tcbase = v_texcoord; //pass the texture coords straight through
|
||
|
|
vec3 lightminusvertex = l_lightposition - w.xyz;
|
||
|
|
lightvector.x = dot(lightminusvertex, s.xyz);
|
||
|
|
lightvector.y = dot(lightminusvertex, t.xyz);
|
||
|
|
lightvector.z = dot(lightminusvertex, n.xyz);
|
||
|
|
#if defined(SPECULAR)||defined(OFFSETMAPPING)
|
||
|
|
vec3 eyeminusvertex = e_eyepos - w.xyz;
|
||
|
|
eyevector.x = dot(eyeminusvertex, s.xyz);
|
||
|
|
eyevector.y = -dot(eyeminusvertex, t.xyz);
|
||
|
|
eyevector.z = dot(eyeminusvertex, n.xyz);
|
||
|
|
#endif
|
||
|
|
#if defined(PCF) || defined(SPOT) || defined(PROJECTION) || defined(CUBE)
|
||
|
|
vshadowcoord = l_projmatrix*vec4(w.xyz, 1.0);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#ifdef FRAGMENT_SHADER
|
||
|
|
#include "sys/fog.h"
|
||
|
|
uniform sampler2D s_t0;
|
||
|
|
#if defined(BUMP) || defined(SPECULAR) || defined(OFFSETMAPPING)
|
||
|
|
uniform sampler2D s_t1;
|
||
|
|
#endif
|
||
|
|
#ifdef SPECULAR
|
||
|
|
uniform sampler2D s_t2;
|
||
|
|
#endif
|
||
|
|
#ifdef CUBE
|
||
|
|
uniform samplerCube s_t3;
|
||
|
|
#endif
|
||
|
|
#ifdef PCF
|
||
|
|
#ifdef CUBE
|
||
|
|
uniform samplerCubeShadow s_t7;
|
||
|
|
#else
|
||
|
|
uniform sampler2DShadow s_t7;
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
uniform float l_lightradius;
|
||
|
|
uniform vec3 l_lightcolour;
|
||
|
|
uniform vec3 l_lightcolourscale;
|
||
|
|
#ifdef OFFSETMAPPING
|
||
|
|
#include "sys/offsetmapping.h"
|
||
|
|
#endif
|
||
|
|
void main ()
|
||
|
|
{
|
||
|
|
#ifdef OFFSETMAPPING
|
||
|
|
vec2 tcoffsetmap = offsetmap(s_t1, tcbase, eyevector);
|
||
|
|
#define tcbase tcoffsetmap
|
||
|
|
#endif
|
||
|
|
vec3 bases = vec3(texture2D(s_t0, tcbase));
|
||
|
|
#if defined(BUMP) || defined(SPECULAR)
|
||
|
|
vec3 bumps = vec3(texture2D(s_t1, tcbase)) - 0.5;
|
||
|
|
#endif
|
||
|
|
#ifdef SPECULAR
|
||
|
|
vec4 specs = texture2D(s_t2, tcbase);
|
||
|
|
#endif
|
||
|
|
vec3 nl = normalize(lightvector);
|
||
|
|
float colorscale = max(1.0 - dot(lightvector, lightvector)/(l_lightradius*l_lightradius), 0.0);
|
||
|
|
vec3 diff;
|
||
|
|
#ifdef BUMP
|
||
|
|
diff = bases * (l_lightcolourscale.x + l_lightcolourscale.y * max(dot(2.0*bumps, nl), 0.0));
|
||
|
|
#else
|
||
|
|
diff = bases * (l_lightcolourscale.x + l_lightcolourscale.y * max(dot(vec3(0.0, 0.0, 1.0), nl), 0.0));
|
||
|
|
#endif
|
||
|
|
#ifdef SPECULAR
|
||
|
|
vec3 halfdir = normalize(lightvector - normalize(eyevector));
|
||
|
|
float spec = pow(max(dot(halfdir, bumps), 0.0), 1.0 + 32.0 * specs.a);
|
||
|
|
diff += spec * specs.rgb * l_lightcolourscale.z;
|
||
|
|
#endif
|
||
|
|
#ifdef CUBE
|
||
|
|
diff *= textureCube(s_t3, vshadowcoord.xyz).rgb;
|
||
|
|
#endif
|
||
|
|
#ifdef PCF
|
||
|
|
#if defined(SPOT)
|
||
|
|
const float texx = 512.0;
|
||
|
|
const float texy = 512.0;
|
||
|
|
vec4 shadowcoord = vshadowcoord;
|
||
|
|
#else
|
||
|
|
const float texx = 512.0;
|
||
|
|
const float texy = 512.0;
|
||
|
|
vec4 shadowcoord;
|
||
|
|
shadowcoord.zw = vshadowcoord.zw;
|
||
|
|
shadowcoord.xy = vshadowcoord.xy;
|
||
|
|
#endif
|
||
|
|
#ifdef CUBE
|
||
|
|
const float xPixelOffset = 1.0/texx; const float yPixelOffset = 1.0/texy; float s = 0.0;
|
||
|
|
s += shadowCubeProj(s_t7, shadowcoord + vec4(-1.0 * xPixelOffset * shadowcoord.w, -1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadowCubeProj(s_t7, shadowcoord + vec4(-1.0 * xPixelOffset * shadowcoord.w, 0.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadowCubeProj(s_t7, shadowcoord + vec4(-1.0 * xPixelOffset * shadowcoord.w, 1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadowCubeProj(s_t7, shadowcoord + vec4(0.0 * xPixelOffset * shadowcoord.w, -1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadowCubeProj(s_t7, shadowcoord + vec4(0.0 * xPixelOffset * shadowcoord.w, 0.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadowCubeProj(s_t7, shadowcoord + vec4(0.0 * xPixelOffset * shadowcoord.w, 1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadowCubeProj(s_t7, shadowcoord + vec4(1.0 * xPixelOffset * shadowcoord.w, -1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadowCubeProj(s_t7, shadowcoord + vec4(1.0 * xPixelOffset * shadowcoord.w, 0.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadowCubeProj(s_t7, shadowcoord + vec4(1.0 * xPixelOffset * shadowcoord.w, 1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
colorscale *= s/9.0;
|
||
|
|
#else
|
||
|
|
const float xPixelOffset = 1.0/texx; const float yPixelOffset = 1.0/texy; float s = 0.0;
|
||
|
|
s += shadow2DProj(s_t7, shadowcoord + vec4(-1.0 * xPixelOffset * shadowcoord.w, -1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadow2DProj(s_t7, shadowcoord + vec4(-1.0 * xPixelOffset * shadowcoord.w, 0.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadow2DProj(s_t7, shadowcoord + vec4(-1.0 * xPixelOffset * shadowcoord.w, 1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadow2DProj(s_t7, shadowcoord + vec4(0.0 * xPixelOffset * shadowcoord.w, -1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadow2DProj(s_t7, shadowcoord + vec4(0.0 * xPixelOffset * shadowcoord.w, 0.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadow2DProj(s_t7, shadowcoord + vec4(0.0 * xPixelOffset * shadowcoord.w, 1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadow2DProj(s_t7, shadowcoord + vec4(1.0 * xPixelOffset * shadowcoord.w, -1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadow2DProj(s_t7, shadowcoord + vec4(1.0 * xPixelOffset * shadowcoord.w, 0.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
s += shadow2DProj(s_t7, shadowcoord + vec4(1.0 * xPixelOffset * shadowcoord.w, 1.0 * yPixelOffset * shadowcoord.w, 0.05, 0.0)).r;
|
||
|
|
colorscale *= s/9.0;
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
#if defined(SPOT)
|
||
|
|
if (shadowcoord.w < 0.0) discard;
|
||
|
|
vec2 spot = ((shadowcoord.st)/shadowcoord.w - 0.5)*2.0;colorscale*=1.0-(dot(spot,spot));
|
||
|
|
#endif
|
||
|
|
#if defined(PROJECTION)
|
||
|
|
l_lightcolour *= texture2d(s_t3, shadowcoord);
|
||
|
|
#endif
|
||
|
|
gl_FragColor.rgb = fog3additive(diff*colorscale*l_lightcolour);
|
||
|
|
}
|
||
|
|
#endif
|