summaryrefslogtreecommitdiff
path: root/drivers/gles2/shaders/material.glsl
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gles2/shaders/material.glsl')
-rw-r--r--drivers/gles2/shaders/material.glsl875
1 files changed, 875 insertions, 0 deletions
diff --git a/drivers/gles2/shaders/material.glsl b/drivers/gles2/shaders/material.glsl
new file mode 100644
index 0000000000..9c2fbaee6c
--- /dev/null
+++ b/drivers/gles2/shaders/material.glsl
@@ -0,0 +1,875 @@
+[vertex]
+
+
+#ifdef USE_GLES_OVER_GL
+#define mediump
+#define highp
+#else
+precision mediump float;
+precision mediump int;
+#endif
+/*
+from VisualServer:
+
+ARRAY_VERTEX=0,
+ARRAY_NORMAL=1,
+ARRAY_TANGENT=2,
+ARRAY_COLOR=3,
+ARRAY_TEX_UV=4,
+ARRAY_TEX_UV2=5,
+ARRAY_BONES=6,
+ARRAY_WEIGHTS=7,
+ARRAY_INDEX=8,
+*/
+
+/* INPUT ATTRIBS */
+
+attribute highp vec4 vertex_attrib; // attrib:0
+attribute vec3 normal_attrib; // attrib:1
+attribute vec4 tangent_attrib; // attrib:2
+attribute vec4 color_attrib; // attrib:3
+attribute vec2 uv_attrib; // attrib:4
+attribute vec2 uv2_attrib; // attrib:5
+
+#ifdef USE_SKELETON
+attribute vec4 bone_indices; // attrib:6
+attribute vec4 bone_weights; // attrib:7
+uniform highp sampler2D skeleton_matrices; // texunit:6
+uniform highp float skeltex_pixel_size;
+#endif
+
+#ifdef USE_ATTRIBUTE_INSTANCING
+
+attribute highp vec4 instance_row0; // attrib:8
+attribute highp vec4 instance_row1; // attrib:9
+attribute highp vec4 instance_row2; // attrib:10
+attribute highp vec4 instance_row3; // attrib:11
+
+#endif
+
+#ifdef USE_TEXTURE_INSTANCING
+
+attribute highp vec3 instance_uv; // attrib:6
+uniform highp sampler2D instance_matrices; // texunit:6
+
+#endif
+
+uniform highp mat4 world_transform;
+uniform highp mat4 camera_inverse_transform;
+uniform highp mat4 projection_transform;
+
+#ifdef USE_UNIFORM_INSTANCING
+//shittiest form of instancing (but most compatible)
+uniform highp mat4 instance_transform;
+#endif
+
+/* Varyings */
+
+varying vec3 vertex_interp;
+varying vec3 normal_interp;
+
+#if defined(ENABLE_COLOR_INTERP)
+varying vec4 color_interp;
+#endif
+
+#if defined(ENABLE_UV_INTERP)
+varying vec2 uv_interp;
+#endif
+
+#if defined(ENABLE_UV2_INTERP)
+varying vec2 uv2_interp;
+#endif
+
+#if defined(ENABLE_VAR1_INTERP)
+varying vec4 var1_interp;
+#endif
+
+#if defined(ENABLE_VAR2_INTERP)
+varying vec4 var2_interp;
+#endif
+
+#if defined(ENABLE_TANGENT_INTERP)
+varying vec3 tangent_interp;
+varying vec3 binormal_interp;
+#endif
+
+#ifdef USE_FOG
+
+varying vec4 fog_interp;
+uniform highp vec3 fog_params;
+uniform vec3 fog_color_begin;
+uniform vec3 fog_color_end;
+
+#endif
+
+#ifdef USE_VERTEX_LIGHTING
+
+uniform vec3 light_pos;
+uniform vec3 light_direction;
+uniform vec3 light_attenuation;
+uniform vec3 light_spot_attenuation;
+uniform vec3 light_ambient;
+uniform vec3 light_diffuse;
+uniform vec3 light_specular;
+
+
+
+#endif
+
+varying vec4 diffuse_interp;
+varying vec3 specular_interp;
+//intended for static branching
+//pretty much all meaningful platforms support
+//static branching
+
+uniform float time;
+uniform float instance_id;
+
+
+#if !defined(USE_DEPTH_SHADOWS) && defined(USE_SHADOW_PASS)
+
+varying vec4 position_interp;
+
+#endif
+
+#ifdef LIGHT_USE_SHADOW
+
+uniform highp mat4 shadow_matrix;
+varying highp vec4 shadow_coord;
+#ifdef LIGHT_USE_PSSM
+uniform highp mat4 shadow_matrix2;
+varying highp vec4 shadow_coord2;
+#endif
+
+
+#endif
+
+#ifdef USE_SHADOW_PASS
+
+uniform highp float shadow_z_offset;
+uniform highp float shadow_z_slope_scale;
+
+#endif
+
+#ifdef USE_DUAL_PARABOLOID
+uniform highp vec2 dual_paraboloid;
+varying float dp_clip;
+#endif
+
+
+
+VERTEX_SHADER_GLOBALS
+
+
+
+
+void main() {
+#ifdef USE_UNIFORM_INSTANCING
+
+ highp mat4 modelview = (camera_inverse_transform * (world_transform * instance_transform));
+#else
+
+#ifdef USE_ATTRIBUTE_INSTANCING
+
+ highp mat4 minst=mat4(instance_row0,instance_row1,instance_row2,instance_row3);
+ highp mat4 modelview = (camera_inverse_transform * (world_transform * minst));
+
+#else
+
+#ifdef USE_TEXTURE_INSTANCING
+
+ highp vec2 ins_ofs=vec2(instance_uv.z,0.0);
+
+ highp mat4 minst=mat4(
+ texture2D(instance_matrices,instance_uv.xy),
+ texture2D(instance_matrices,instance_uv.xy+ins_ofs),
+ texture2D(instance_matrices,instance_uv.xy+ins_ofs*2.0),
+ texture2D(instance_matrices,instance_uv.xy+ins_ofs*3.0)
+ );
+
+ /*highp mat4 minst=mat4(
+ vec4(1.0,0.0,0.0,0.0),
+ vec4(0.0,1.0,0.0,0.0),
+ vec4(0.0,0.0,1.0,0.0),
+ vec4(0.0,0.0,0.0,1.0)
+ );*/
+
+ highp mat4 modelview = (camera_inverse_transform * (world_transform * minst));
+
+#else
+ highp mat4 modelview = (camera_inverse_transform * world_transform);
+#endif
+
+#endif
+
+#endif
+ highp vec4 vertex_in = vertex_attrib; // vec4(vertex_attrib.xyz * data_attrib.x,1.0);
+ vec3 normal_in = normal_attrib;
+#if defined(ENABLE_TANGENT_INTERP)
+ vec3 tangent_in = tangent_attrib.xyz;
+#endif
+
+#ifdef USE_SKELETON
+
+ {
+ //skeleton transform
+ highp mat4 m=mat4(texture2D(skeleton_matrices,vec2((bone_indices.x*3.0+0.0)*skeltex_pixel_size,0.0)),texture2D(skeleton_matrices,vec2((bone_indices.x*3.0+1.0)*skeltex_pixel_size,0.0)),texture2D(skeleton_matrices,vec2((bone_indices.x*3.0+2.0)*skeltex_pixel_size,0.0)),vec4(0.0,0.0,0.0,1.0))*bone_weights.x;
+ m+=mat4(texture2D(skeleton_matrices,vec2((bone_indices.y*3.0+0.0)*skeltex_pixel_size,0.0)),texture2D(skeleton_matrices,vec2((bone_indices.y*3.0+1.0)*skeltex_pixel_size,0.0)),texture2D(skeleton_matrices,vec2((bone_indices.y*3.0+2.0)*skeltex_pixel_size,0.0)),vec4(0.0,0.0,0.0,1.0))*bone_weights.y;
+ m+=mat4(texture2D(skeleton_matrices,vec2((bone_indices.z*3.0+0.0)*skeltex_pixel_size,0.0)),texture2D(skeleton_matrices,vec2((bone_indices.z*3.0+1.0)*skeltex_pixel_size,0.0)),texture2D(skeleton_matrices,vec2((bone_indices.z*3.0+2.0)*skeltex_pixel_size,0.0)),vec4(0.0,0.0,0.0,1.0))*bone_weights.z;
+ m+=mat4(texture2D(skeleton_matrices,vec2((bone_indices.w*3.0+0.0)*skeltex_pixel_size,0.0)),texture2D(skeleton_matrices,vec2((bone_indices.w*3.0+1.0)*skeltex_pixel_size,0.0)),texture2D(skeleton_matrices,vec2((bone_indices.w*3.0+2.0)*skeltex_pixel_size,0.0)),vec4(0.0,0.0,0.0,1.0))*bone_weights.w;
+
+ vertex_in = vertex_in * m;
+ normal_in = (vec4(normal_in,0.0) * m).xyz;
+#if defined(ENABLE_TANGENT_INTERP)
+ tangent_in = (vec4(tangent_in,0.0) * m).xyz;
+#endif
+ }
+
+#endif
+
+ vertex_interp = (modelview * vertex_in).xyz;
+ normal_interp = normalize((modelview * vec4(normal_in,0.0)).xyz);
+
+#if defined(ENABLE_COLOR_INTERP)
+ color_interp = color_attrib;
+#endif
+
+#if defined(ENABLE_TANGENT_INTERP)
+ tangent_interp=normalize(tangent_in);
+ binormal_interp = normalize( cross(normal_interp,tangent_interp) * tangent_attrib.a );
+#endif
+
+#if defined(ENABLE_UV_INTERP)
+ uv_interp = uv_attrib;
+#endif
+#if defined(ENABLE_UV2_INTERP)
+ uv2_interp = uv2_attrib;
+#endif
+
+ float vertex_specular_exp = 40.0; //material_specular.a;
+
+
+
+VERTEX_SHADER_CODE
+
+
+#ifdef USE_DUAL_PARABOLOID
+//for dual paraboloid shadow mapping
+ highp vec3 vtx = vertex_interp;
+ vtx.z*=dual_paraboloid.y; //side to affect
+ vtx.z+=0.01;
+ dp_clip=vtx.z;
+ highp float len=length( vtx );
+ vtx=normalize(vtx);
+ vtx.xy/=1.0+vtx.z;
+ vtx.z = len*dual_paraboloid.x; // it's a reciprocal(len - z_near) / (z_far - z_near);
+ vtx+=normalize(vtx)*0.025;
+ vtx.z = vtx.z * 2.0 - 1.0; // fit to clipspace
+ vertex_interp=vtx;
+
+ //vertex_interp.w = z_clip;
+
+#endif
+
+#ifdef USE_SHADOW_PASS
+
+ float z_ofs = shadow_z_offset;
+ z_ofs += (1.0-abs(normal_interp.z))*shadow_z_slope_scale;
+ vertex_interp.z-=z_ofs;
+#endif
+
+#ifdef LIGHT_USE_SHADOW
+
+ shadow_coord = shadow_matrix * vec4(vertex_interp,1.0);
+ shadow_coord.xyz/=shadow_coord.w;
+
+#ifdef LIGHT_USE_PSSM
+ shadow_coord.y*=0.5;
+ shadow_coord.y+=0.5;
+ shadow_coord2 = shadow_matrix2 * vec4(vertex_interp,1.0);
+ shadow_coord2.xyz/=shadow_coord2.w;
+ shadow_coord2.y*=0.5;
+#endif
+#endif
+
+#ifdef USE_FOG
+
+ fog_interp.a = pow( clamp( (-vertex_interp.z-fog_params.x)/(fog_params.y-fog_params.x), 0.0, 1.0 ), fog_params.z );
+ fog_interp.rgb = mix( fog_color_begin, fog_color_end, fog_interp.a );
+#endif
+
+#ifndef VERTEX_SHADER_WRITE_POSITION
+//vertex shader might write a position
+ gl_Position = projection_transform * vec4(vertex_interp,1.0);
+#endif
+
+
+
+#if !defined(USE_DEPTH_SHADOWS) && defined(USE_SHADOW_PASS)
+
+ position_interp=gl_Position;
+
+#endif
+
+
+#ifdef USE_VERTEX_LIGHTING
+
+ vec3 eye_vec = -normalize(vertex_interp);
+
+#ifdef LIGHT_TYPE_DIRECTIONAL
+
+ vec3 light_dir = -light_direction;
+ float attenuation = light_attenuation.r;
+
+
+#endif
+
+#ifdef LIGHT_TYPE_OMNI
+ vec3 light_dir = light_pos-vertex_interp;
+ float radius = light_attenuation.g;
+ float dist = min(length(light_dir),radius);
+ light_dir=normalize(light_dir);
+ float attenuation = pow( max(1.0 - dist/radius, 0.0), light_attenuation.b ) * light_attenuation.r;
+
+#endif
+
+#ifdef LIGHT_TYPE_SPOT
+
+ vec3 light_dir = light_pos-vertex_interp;
+ float radius = light_attenuation.g;
+ float dist = min(length(light_dir),radius);
+ light_dir=normalize(light_dir);
+ float attenuation = pow( max(1.0 - dist/radius, 0.0), light_attenuation.b ) * light_attenuation.r;
+ vec3 spot_dir = light_direction;
+ float spot_cutoff=light_spot_attenuation.r;
+ float scos = max(dot(-light_dir, spot_dir),spot_cutoff);
+ float rim = (1.0 - scos) / (1.0 - spot_cutoff);
+ attenuation *= 1.0 - pow( rim, light_spot_attenuation.g);
+
+
+#endif
+
+#if defined(LIGHT_TYPE_DIRECTIONAL) || defined(LIGHT_TYPE_OMNI) || defined(LIGHT_TYPE_SPOT)
+
+ //process_shade(normal_interp,light_dir,eye_vec,vertex_specular_exp,attenuation,diffuse_interp,specular_interp);
+ {
+ float NdotL = max(0.0,dot( normal_interp, light_dir ));
+ vec3 half_vec = normalize(light_dir + eye_vec);
+ float eye_light = max(dot(normal_interp, half_vec),0.0);
+ diffuse_interp.rgb=light_diffuse * NdotL * attenuation;// + light_ambient;
+ diffuse_interp.a=attenuation;
+ if (NdotL > 0.0) {
+ specular_interp=light_specular * pow( eye_light, vertex_specular_exp ) * attenuation;
+ } else {
+ specular_interp=vec3(0.0);
+ }
+ }
+#else
+
+#ifdef SHADELESS
+
+ diffuse_interp=vec4(vec3(1.0),0.0);
+ specular_interp=vec3(0.0);
+# else
+
+ diffuse_interp=vec4(0.0);
+ specular_interp=vec3(0.0);
+# endif
+
+#endif
+
+
+
+
+#endif
+
+
+}
+
+
+[fragment]
+
+
+#ifdef USE_GLES_OVER_GL
+#define mediump
+#define highp
+#else
+
+precision mediump float;
+precision mediump int;
+
+#endif
+
+/* Varyings */
+
+#if defined(ENABLE_COLOR_INTERP)
+varying vec4 color_interp;
+#endif
+
+#if defined(ENABLE_UV_INTERP)
+varying vec2 uv_interp;
+#endif
+
+#if defined(ENABLE_UV2_INTERP)
+varying vec2 uv2_interp;
+#endif
+
+#if defined(ENABLE_TANGENT_INTERP)
+varying vec3 tangent_interp;
+varying vec3 binormal_interp;
+#endif
+
+#if defined(ENABLE_VAR1_INTERP)
+varying vec4 var1_interp;
+#endif
+
+#if defined(ENABLE_VAR2_INTERP)
+varying vec4 var2_interp;
+#endif
+
+#ifdef LIGHT_USE_PSSM
+uniform float light_pssm_split;
+#endif
+
+varying vec3 vertex_interp;
+varying vec3 normal_interp;
+
+#ifdef USE_FOG
+
+varying vec4 fog_interp;
+
+#endif
+
+/* Material Uniforms */
+
+#ifdef USE_VERTEX_LIGHTING
+
+varying vec4 diffuse_interp;
+varying vec3 specular_interp;
+
+#endif
+
+#if !defined(USE_DEPTH_SHADOWS) && defined(USE_SHADOW_PASS)
+
+varying vec4 position_interp;
+
+#endif
+
+
+
+uniform vec3 light_pos;
+uniform vec3 light_direction;
+uniform vec3 light_attenuation;
+uniform vec3 light_spot_attenuation;
+uniform vec3 light_ambient;
+uniform vec3 light_diffuse;
+uniform vec3 light_specular;
+
+
+#ifdef USE_FRAGMENT_LIGHTING
+
+
+
+vec3 process_shade(in vec3 normal, in vec3 light_dir, in vec3 eye_vec, in vec3 diffuse, in vec3 specular, in float specular_exp, in float attenuation) {
+
+ float NdotL = max(0.0,dot( normal, light_dir ));
+ vec3 half_vec = normalize(light_dir + eye_vec);
+ float eye_light = max(dot(normal, half_vec),0.0);
+
+ vec3 ret = light_ambient *diffuse + light_diffuse * diffuse * NdotL * attenuation;
+ if (NdotL > 0.0) {
+ ret+=light_specular * specular * pow( eye_light, specular_exp ) * attenuation;
+ }
+ return ret;
+}
+
+# ifdef USE_DEPTH_SHADOWS
+# else
+# endif
+
+#endif
+
+uniform float const_light_mult;
+uniform float time;
+
+
+
+FRAGMENT_SHADER_GLOBALS
+
+
+
+#ifdef LIGHT_USE_SHADOW
+
+varying highp vec4 shadow_coord;
+#ifdef LIGHT_USE_PSSM
+varying highp vec4 shadow_coord2;
+#endif
+uniform highp sampler2D shadow_texture;
+uniform highp vec2 shadow_texel_size;
+
+uniform float shadow_darkening;
+
+#ifdef USE_DEPTH_SHADOWS
+
+#define SHADOW_DEPTH(m_tex,m_uv) (texture2D((m_tex),(m_uv)).z)
+
+#else
+
+//#define SHADOW_DEPTH(m_tex,m_uv) dot(texture2D((m_tex),(m_uv)),highp vec4(1.0 / (256.0 * 256.0 * 256.0),1.0 / (256.0 * 256.0),1.0 / 256.0,1) )
+#define SHADOW_DEPTH(m_tex,m_uv) dot(texture2D((m_tex),(m_uv)),vec4(1.0 / (256.0 * 256.0 * 256.0),1.0 / (256.0 * 256.0),1.0 / 256.0,1) )
+
+#endif
+
+#ifdef USE_SHADOW_PCF
+
+
+float SAMPLE_SHADOW_TEX( highp vec2 coord, highp float refdepth) {
+
+ float avg=(SHADOW_DEPTH(shadow_texture,coord) < refdepth ? 0.0 : 1.0);
+ avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(shadow_texel_size.x,0.0)) < refdepth ? 0.0 : 1.0);
+ avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(-shadow_texel_size.x,0.0)) < refdepth ? 0.0 : 1.0);
+ avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(0.0,shadow_texel_size.y)) < refdepth ? 0.0 : 1.0);
+ avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(0.0,-shadow_texel_size.y)) < refdepth ? 0.0 : 1.0);
+ return avg*0.2;
+}
+
+
+/*
+ 16x averaging
+float SAMPLE_SHADOW_TEX( highp vec2 coord, highp float refdepth) {
+
+ vec2 offset = vec2(
+ lessThan(vec2(0.25),fract(gl_FragCoord.xy * 0.5))
+ );
+ offset.y += offset.x; // y ^= x in floating point
+
+ if (offset.y > 1.1)
+ offset.y = 0.0;
+ float avg = step( refdepth, SHADOW_DEPTH(shadow_texture, coord+ (offset + vec2(-1.5, 0.5))*shadow_texel_size) );
+ avg+=step(refdepth, SHADOW_DEPTH(shadow_texture, coord+ (offset + vec2(0.5, 0.5))*shadow_texel_size) );
+ avg+=step(refdepth, SHADOW_DEPTH(shadow_texture, coord+ (offset + vec2(-1.5, -1.5))*shadow_texel_size) );
+ avg+=step(refdepth, SHADOW_DEPTH(shadow_texture, coord+ (offset + vec2(0.5, -1.5))*shadow_texel_size) );
+ return avg * 0.25;
+}
+*/
+
+/*
+float SAMPLE_SHADOW_TEX( highp vec2 coord, highp float refdepth) {
+
+ vec2 offset = vec2(
+ lessThan(vec2(0.25),fract(gl_FragCoord.xy * 0.5))
+ );
+ offset.y += offset.x; // y ^= x in floating point
+
+ if (offset.y > 1.1)
+ offset.y = 0.0;
+ return step( refdepth, SHADOW_DEPTH(shadow_texture, coord+ offset*shadow_texel_size) );
+
+}
+
+*/
+/* simple pcf4 */
+//#define SAMPLE_SHADOW_TEX(m_coord,m_depth) ((step(m_depth,SHADOW_DEPTH(shadow_texture,m_coord))+step(m_depth,SHADOW_DEPTH(shadow_texture,m_coord+vec2(0.0,shadow_texel_size.y)))+step(m_depth,SHADOW_DEPTH(shadow_texture,m_coord+vec2(shadow_texel_size.x,0.0)))+step(m_depth,SHADOW_DEPTH(shadow_texture,m_coord+shadow_texel_size)))/4.0)
+
+#endif
+
+#ifdef USE_SHADOW_ESM
+
+
+float SAMPLE_SHADOW_TEX(vec2 p_uv,float p_depth) {
+
+ vec2 unnormalized = p_uv/shadow_texel_size;
+ vec2 fractional = fract(unnormalized);
+ unnormalized = floor(unnormalized);
+
+ vec4 exponent;
+ exponent.x = SHADOW_DEPTH(shadow_texture, (unnormalized + vec2( -0.5, 0.5 )) * shadow_texel_size );
+ exponent.y = SHADOW_DEPTH(shadow_texture, (unnormalized + vec2( 0.5, 0.5 )) * shadow_texel_size );
+ exponent.z = SHADOW_DEPTH(shadow_texture, (unnormalized + vec2( 0.5, -0.5 )) * shadow_texel_size );
+ exponent.w = SHADOW_DEPTH(shadow_texture, (unnormalized + vec2( -0.5, -0.5 )) * shadow_texel_size );
+
+ highp float occluder = (exponent.w + (exponent.x - exponent.w) * fractional.y);
+ occluder = occluder + ((exponent.z + (exponent.y - exponent.z) * fractional.y) - occluder)*fractional.x;
+ return clamp(exp(28.0 * ( occluder - p_depth )),0.0,1.0);
+
+}
+
+
+#endif
+
+#if !defined(USE_SHADOW_PCF) && !defined(USE_SHADOW_ESM)
+
+#define SAMPLE_SHADOW_TEX(m_coord,m_depth) (SHADOW_DEPTH(shadow_texture,m_coord) < m_depth ? 0.0 : 1.0)
+
+#endif
+
+
+#endif
+
+#ifdef USE_DUAL_PARABOLOID
+
+varying float dp_clip;
+
+#endif
+
+uniform highp mat4 camera_inverse_transform;
+
+#if defined(ENABLE_TEXSCREEN)
+
+uniform vec2 texscreen_screen_mult;
+uniform sampler2D texscreen_tex;
+
+#endif
+
+#if defined(ENABLE_SCREEN_UV)
+
+uniform vec2 screen_uv_mult;
+
+#endif
+
+void main() {
+
+#ifdef USE_DUAL_PARABOLOID
+ if (dp_clip<0.0)
+ discard;
+#endif
+
+ //lay out everything, whathever is unused is optimized away anyway
+ vec3 vertex = vertex_interp;
+ vec4 diffuse = vec4(0.9,0.9,0.9,1.0);
+ vec3 specular = vec3(0.0,0.0,0.0);
+ vec3 emission = vec3(0.0,0.0,0.0);
+ float specular_exp=1.0;
+ float glow=0.0;
+ float shade_param=0.0;
+ float side=float(gl_FrontFacing)*2.0-1.0;
+#if defined(ENABLE_TANGENT_INTERP)
+ vec3 binormal = normalize(binormal_interp)*side;
+ vec3 tangent = normalize(tangent_interp)*side;
+#endif
+// vec3 normal = abs(normalize(normal_interp))*side;
+ vec3 normal = normalize(normal_interp)*side;
+#if defined(ENABLE_SCREEN_UV)
+ vec2 screen_uv = gl_FragCoord.xy*screen_uv_mult;
+#endif
+
+#if defined(ENABLE_UV_INTERP)
+ vec2 uv = uv_interp;
+#endif
+
+#if defined(ENABLE_UV2_INTERP)
+ vec2 uv2 = uv2_interp;
+#endif
+
+#if defined(ENABLE_COLOR_INTERP)
+ vec4 color = color_interp;
+#endif
+
+
+
+
+#ifdef FRAGMENT_SHADER_CODE_USE_DISCARD
+ float discard_=0.0;
+#endif
+
+
+FRAGMENT_SHADER_CODE
+
+
+#ifdef FRAGMENT_SHADER_CODE_USE_DISCARD
+ if (discard_>0.0) {
+ //easy to eliminate dead code
+ discard;
+ }
+#endif
+
+
+ float shadow_attenuation = 1.0;
+
+
+#ifdef LIGHT_USE_SHADOW
+#ifdef LIGHT_TYPE_DIRECTIONAL
+
+#ifdef LIGHT_USE_PSSM
+
+
+// if (vertex_interp.z > light_pssm_split) {
+#if 0
+ highp vec3 splane = vec3(0.0,0.0,0.0);
+
+ if (gl_FragCoord.w > light_pssm_split) {
+
+ splane = shadow_coord.xyz;
+ splane.y+=1.0;
+ } else {
+ splane = shadow_coord2.xyz;
+ }
+ splane.y*=0.5;
+ shadow_attenuation=SAMPLE_SHADOW_TEX(splane.xy,splane.z);
+
+#else
+/*
+ float sa_a = SAMPLE_SHADOW_TEX(shadow_coord.xy,shadow_coord.z);
+ float sa_b = SAMPLE_SHADOW_TEX(shadow_coord2.xy,shadow_coord2.z);
+ if (gl_FragCoord.w > light_pssm_split) {
+ shadow_attenuation=sa_a;
+ } else {
+ shadow_attenuation=sa_b;
+ }
+*/
+
+ if (gl_FragCoord.w > light_pssm_split) {
+ shadow_attenuation=SAMPLE_SHADOW_TEX(shadow_coord.xy,shadow_coord.z);
+ } else {
+ shadow_attenuation=SAMPLE_SHADOW_TEX(shadow_coord2.xy,shadow_coord2.z);
+ }
+
+
+#endif
+
+#else
+
+ shadow_attenuation=SAMPLE_SHADOW_TEX(shadow_coord.xy,shadow_coord.z);
+#endif
+#endif
+
+#ifdef LIGHT_TYPE_OMNI
+
+ vec3 splane=shadow_coord.xyz;///shadow_coord.w;
+ float shadow_len=length(splane);
+ splane=normalize(splane);
+ float vofs=0.0;
+
+ if (splane.z>=0.0) {
+
+ splane.z+=1.0;
+ } else {
+
+ splane.z=1.0 - splane.z;
+ vofs=0.5;
+ }
+ splane.xy/=splane.z;
+ splane.xy=splane.xy * 0.5 + 0.5;
+ float lradius = light_attenuation.g;
+ splane.z = shadow_len / lradius;
+ splane.y=clamp(splane.y,0.0,1.0)*0.5+vofs;
+
+ shadow_attenuation=SAMPLE_SHADOW_TEX(splane.xy,splane.z);
+#endif
+
+#ifdef LIGHT_TYPE_SPOT
+
+ shadow_attenuation=SAMPLE_SHADOW_TEX(shadow_coord.xy,shadow_coord.z);
+#endif
+
+ shadow_attenuation=mix(shadow_attenuation,1.0,shadow_darkening);
+#endif
+
+
+#ifdef USE_FRAGMENT_LIGHTING
+
+ vec3 eye_vec = -normalize(vertex);
+
+#ifdef LIGHT_TYPE_DIRECTIONAL
+
+ vec3 light_dir = -light_direction;
+ float light_attenuation = light_attenuation.r;
+
+ diffuse.rgb=process_shade(normal,light_dir,eye_vec,diffuse.rgb,specular,specular_exp,shadow_attenuation)*light_attenuation;
+
+#endif
+
+#ifdef LIGHT_TYPE_OMNI
+
+ vec3 light_dir = light_pos-vertex;
+ float radius = light_attenuation.g;
+ float dist = min(length(light_dir),radius);
+ light_dir=normalize(light_dir);
+ float attenuation = pow( max(1.0 - dist/radius, 0.0), light_attenuation.b ) * light_attenuation.r;
+
+ diffuse.rgb=process_shade(normal,light_dir,eye_vec,diffuse.rgb,specular,specular_exp,shadow_attenuation)*attenuation;
+#endif
+
+
+#ifdef LIGHT_TYPE_SPOT
+
+ vec3 light_dir = light_pos-vertex;
+ float radius = light_attenuation.g;
+ float dist = min(length(light_dir),radius);
+ light_dir=normalize(light_dir);
+ float attenuation = pow( max(1.0 - dist/radius, 0.0), light_attenuation.b ) * light_attenuation.r;
+ vec3 spot_dir = light_direction;
+ float spot_cutoff=light_spot_attenuation.r;
+ float scos = max(dot(-light_dir, spot_dir),spot_cutoff);
+ float rim = (1.0 - scos) / (1.0 - spot_cutoff);
+ attenuation *= 1.0 - pow( rim, light_spot_attenuation.g);
+
+ diffuse.rgb=process_shade(normal,light_dir,eye_vec,diffuse.rgb,specular,specular_exp,shadow_attenuation)*attenuation;
+
+#endif
+
+
+# if !defined(LIGHT_TYPE_DIRECTIONAL) && !defined(LIGHT_TYPE_OMNI) && !defined (LIGHT_TYPE_SPOT)
+//none
+ diffuse.rgb=vec3(0.0,0.0,0.0);
+# endif
+
+ diffuse.rgb+=const_light_mult*emission;
+
+#endif
+
+
+#ifdef USE_VERTEX_LIGHTING
+
+ vec3 ambient = light_ambient*diffuse.rgb;
+# if defined(LIGHT_TYPE_OMNI) || defined (LIGHT_TYPE_SPOT)
+ ambient*=diffuse_interp.a; //attenuation affects ambient too
+# endif
+
+// diffuse.rgb=(diffuse.rgb * diffuse_interp.rgb + specular * specular_interp)*shadow_attenuation + ambient;
+// diffuse.rgb+=emission * const_light_mult;
+ diffuse.rgb=(diffuse.rgb * diffuse_interp.rgb + specular * specular_interp)*shadow_attenuation + ambient;
+ diffuse.rgb+=emission * const_light_mult;
+
+
+#endif
+
+
+
+
+
+#ifdef USE_SHADOW_PASS
+
+#ifdef USE_DEPTH_SHADOWS
+
+ //do nothing, depth is just written
+#else
+ // pack depth to rgba
+ //highp float bias = 0.0005;
+ highp float depth = ((position_interp.z / position_interp.w) + 1.0) * 0.5 + 0.0;//bias;
+ highp vec4 comp = fract(depth * vec4(256.0 * 256.0 * 256.0, 256.0 * 256.0, 256.0, 1.0));
+ comp -= comp.xxyz * vec4(0, 1.0 / 256.0, 1.0 / 256.0, 1.0 / 256.0);
+ gl_FragColor = comp;
+
+#endif
+
+#else
+
+#ifdef USE_FOG
+
+ diffuse.rgb = mix(diffuse.rgb,fog_interp.rgb,fog_interp.a);
+#endif
+
+#ifdef USE_GLOW
+
+ diffuse.a=glow;
+#endif
+
+#ifdef USE_HDR
+ diffuse.rgb*=0.25;
+#endif
+ gl_FragColor = diffuse;
+#endif
+}
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 10:14:03 +0000