diff options
Diffstat (limited to 'drivers/gles3/shaders/scene.glsl')
| -rw-r--r-- | drivers/gles3/shaders/scene.glsl | 122 |
1 files changed, 98 insertions, 24 deletions
diff --git a/drivers/gles3/shaders/scene.glsl b/drivers/gles3/shaders/scene.glsl index f94ca6fcba..6fbfeeff6c 100644 --- a/drivers/gles3/shaders/scene.glsl +++ b/drivers/gles3/shaders/scene.glsl @@ -275,6 +275,19 @@ void main() { highp mat4 modelview = camera_inverse_matrix * world_matrix; highp mat4 local_projection = projection_matrix; +//using world coordinates +#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) + + vertex = world_matrix * vertex; + normal = normalize((world_matrix * vec4(normal,0.0)).xyz); + +#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) + + tangent = normalize((world_matrix * vec4(tangent,0.0)).xyz); + binormal = normalize((world_matrix * vec4(binormal,0.0)).xyz); +#endif +#endif + //defines that make writing custom shaders easier #define projection_matrix local_projection #define world_transform world_matrix @@ -286,29 +299,42 @@ VERTEX_SHADER_CODE - -#if !defined(SKIP_TRANSFORM_USED) +//using local coordinates (default) +#if !defined(SKIP_TRANSFORM_USED) && !defined(VERTEX_WORLD_COORDS_USED) vertex = modelview * vertex; normal = normalize((modelview * vec4(normal,0.0)).xyz); + +#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) + + tangent = normalize((modelview * vec4(tangent,0.0)).xyz); + binormal = normalize((modelview * vec4(binormal,0.0)).xyz); +#endif #endif +//using world coordinates +#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) - vertex_interp = vertex.xyz; - normal_interp = normal; + vertex = camera_inverse_matrix * vertex; + normal = normalize((camera_inverse_matrix * vec4(normal,0.0)).xyz); #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) -#if !defined(SKIP_TRANSFORM_USED) + tangent = normalize((camera_inverse_matrix * vec4(tangent,0.0)).xyz); + binormal = normalize((camera_inverse_matrix * vec4(binormal,0.0)).xyz); +#endif +#endif - tangent = normalize((modelview * vec4(tangent,0.0)).xyz); - binormal = normalize((modelview * vec4(binormal,0.0)).xyz); + vertex_interp = vertex.xyz; + normal_interp = normal; -#endif + +#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) tangent_interp = tangent; binormal_interp = binormal; #endif + #ifdef RENDER_DEPTH @@ -429,7 +455,9 @@ vec3 textureDualParaboloid(sampler2DArray p_tex, vec3 p_vec,float p_roughness) { // we need to lie the derivatives (normg) and assume that DP side is always the same // to get proper texure filtering vec2 normg=norm.xy; - norm.y+=max(0.0,sign(norm.z))*0.5; + if (norm.z>0) { + norm.y=0.5-norm.y+0.5; + } // thanks to OpenGL spec using floor(layer + 0.5) for texture arrays, // it's easy to have precision errors using fract() to interpolate layers @@ -451,7 +479,9 @@ vec3 textureDualParaboloid(sampler2D p_tex, vec3 p_vec,float p_roughness) { vec3 norm = normalize(p_vec); norm.xy/=1.0+abs(norm.z); norm.xy=norm.xy * vec2(0.5,0.25) + vec2(0.5,0.25); - norm.y+=max(0.0,sign(norm.z))*0.5; + if (norm.z>0) { + norm.y=0.5-norm.y+0.5; + } return textureLod(p_tex, norm.xy, p_roughness * RADIANCE_MAX_LOD).xyz; } @@ -745,6 +775,10 @@ LIGHT_SHADER_CODE diffuse += diffuse_color * max(0.0, NdotL) * (A + vec3(B) * s / t) / M_PI; } +#elif defined(DIFFUSE_TOON) + + diffuse += smoothstep(-roughness,max(roughness,0.01),dot(N,L)) * light_color * diffuse_color; + #elif defined(DIFFUSE_BURLEY) { @@ -775,6 +809,37 @@ LIGHT_SHADER_CODE if (roughness > 0.0) { + + // D + +#if defined(SPECULAR_BLINN) + + vec3 H = normalize(V + L); + float dotNH = max(dot(N,H), 0.0 ); + float intensity = pow( dotNH, (1.0-roughness) * 256.0); + specular += light_color * intensity * specular_blob_intensity; + +#elif defined(SPECULAR_PHONG) + + vec3 R = normalize(-reflect(L,N)); + float dotNV = max(0.0,dot(R,V)); + float intensity = pow( dotNV, (1.0-roughness) * 256.0); + specular += light_color * intensity * specular_blob_intensity; + +#elif defined(SPECULAR_TOON) + + vec3 R = normalize(-reflect(L,N)); + float dotNV = dot(R,V); + float mid = 1.0-roughness; + mid*=mid; + float intensity = smoothstep(mid-roughness*0.5,mid+roughness*0.5,dotNV) * mid; + diffuse += light_color * intensity * specular_blob_intensity; //write to diffuse, as in toon shading you generally want no reflection + +#elif defined(SPECULAR_DISABLED) + //none.. + +#else + // shlick+ggx as default float alpha = roughness * roughness; vec3 H = normalize(V + L); @@ -782,7 +847,6 @@ LIGHT_SHADER_CODE float dotNH = max(dot(N,H), 0.0 ); float dotLH = max(dot(L,H), 0.0 ); - // D #if defined(LIGHT_USE_ANISOTROPY) float aspect = sqrt(1.0-anisotropy*0.9); @@ -814,6 +878,7 @@ LIGHT_SHADER_CODE float speci = dotNL * D * F * vis; specular += speci * light_color * specular_blob_intensity; +#endif #if defined(LIGHT_USE_CLEARCOAT) float Dr = GTR1(dotNH, mix(.1,.001,clearcoat_gloss)); @@ -904,7 +969,7 @@ vec3 light_transmittance(float translucency,vec3 light_vec, vec3 normal, vec3 po } #endif -void light_process_omni(int idx, vec3 vertex, vec3 eye_vec,vec3 normal,vec3 binormal, vec3 tangent, vec3 albedo, float roughness, float rim, float rim_tint, float clearcoat, float clearcoat_gloss,float anisotropy,inout vec3 diffuse_light, inout vec3 specular_light) { +void light_process_omni(int idx, vec3 vertex, vec3 eye_vec,vec3 normal,vec3 binormal, vec3 tangent, vec3 albedo, float roughness, float rim, float rim_tint, float clearcoat, float clearcoat_gloss,float anisotropy,float p_blob_intensity,inout vec3 diffuse_light, inout vec3 specular_light) { vec3 light_rel_vec = omni_lights[idx].light_pos_inv_radius.xyz-vertex; float light_length = length( light_rel_vec ); @@ -955,21 +1020,21 @@ void light_process_omni(int idx, vec3 vertex, vec3 eye_vec,vec3 normal,vec3 bino light_attenuation*=mix(omni_lights[idx].shadow_color_contact.rgb,vec3(1.0),shadow); } - light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,omni_lights[idx].light_color_energy.rgb*light_attenuation,albedo,omni_lights[idx].light_params.z,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light); + light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,omni_lights[idx].light_color_energy.rgb*light_attenuation,albedo,omni_lights[idx].light_params.z*p_blob_intensity,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light); } -void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 binormal, vec3 tangent,vec3 albedo, float roughness, float rim,float rim_tint, float clearcoat, float clearcoat_gloss,float anisotropy, inout vec3 diffuse_light, inout vec3 specular_light) { +void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 binormal, vec3 tangent,vec3 albedo, float roughness, float rim,float rim_tint, float clearcoat, float clearcoat_gloss,float anisotropy,float p_blob_intensity, inout vec3 diffuse_light, inout vec3 specular_light) { vec3 light_rel_vec = spot_lights[idx].light_pos_inv_radius.xyz-vertex; float light_length = length( light_rel_vec ); float normalized_distance = light_length*spot_lights[idx].light_pos_inv_radius.w; - vec3 light_attenuation = vec3(pow( max(1.0 - normalized_distance, 0.0), spot_lights[idx].light_direction_attenuation.w )); + vec3 light_attenuation = vec3(pow( max(1.0 - normalized_distance, 0.001), spot_lights[idx].light_direction_attenuation.w )); vec3 spot_dir = spot_lights[idx].light_direction_attenuation.xyz; float spot_cutoff=spot_lights[idx].light_params.y; float scos = max(dot(-normalize(light_rel_vec), spot_dir),spot_cutoff); float spot_rim = (1.0 - scos) / (1.0 - spot_cutoff); - light_attenuation *= 1.0 - pow( spot_rim, spot_lights[idx].light_params.x); + light_attenuation *= 1.0 - pow( max(spot_rim,0.001), spot_lights[idx].light_params.x); if (spot_lights[idx].light_params.w>0.5) { //there is a shadowmap @@ -988,7 +1053,7 @@ void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 bi light_attenuation*=mix(spot_lights[idx].shadow_color_contact.rgb,vec3(1.0),shadow); } - light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,spot_lights[idx].light_color_energy.rgb*light_attenuation,albedo,spot_lights[idx].light_params.z,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light); + light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,spot_lights[idx].light_color_energy.rgb*light_attenuation,albedo,spot_lights[idx].light_params.z*p_blob_intensity,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light); } @@ -1447,6 +1512,11 @@ FRAGMENT_SHADER_CODE ambient_light*=ambient_energy; + float specular_blob_intensity=1.0; +#if defined(SPECULAR_TOON) + specular_blob_intensity*=specular * 2.0; +#endif + #ifdef USE_LIGHT_DIRECTIONAL vec3 light_attenuation=vec3(1.0); @@ -1586,7 +1656,7 @@ FRAGMENT_SHADER_CODE #endif //LIGHT_DIRECTIONAL_SHADOW - light_compute(normal,-light_direction_attenuation.xyz,eye_vec,binormal,tangent,light_color_energy.rgb*light_attenuation,albedo,light_params.z,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light); + light_compute(normal,-light_direction_attenuation.xyz,eye_vec,binormal,tangent,light_color_energy.rgb*light_attenuation,albedo,light_params.z*specular_blob_intensity,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light); #endif //#USE_LIGHT_DIRECTIONAL @@ -1602,8 +1672,6 @@ FRAGMENT_SHADER_CODE highp vec4 reflection_accum = vec4(0.0,0.0,0.0,0.0); highp vec4 ambient_accum = vec4(0.0,0.0,0.0,0.0); - - for(int i=0;i<reflection_count;i++) { reflection_process(reflection_indices[i],vertex,normal,binormal,tangent,roughness,anisotropy,ambient_light,specular_light,reflection_accum,ambient_accum); } @@ -1616,11 +1684,11 @@ FRAGMENT_SHADER_CODE } for(int i=0;i<omni_light_count;i++) { - light_process_omni(omni_light_indices[i],vertex,eye_vec,normal,binormal,tangent,albedo,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light); + light_process_omni(omni_light_indices[i],vertex,eye_vec,normal,binormal,tangent,albedo,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,specular_blob_intensity,diffuse_light,specular_light); } for(int i=0;i<spot_light_count;i++) { - light_process_spot(spot_light_indices[i],vertex,eye_vec,normal,binormal,tangent,albedo,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light); + light_process_spot(spot_light_indices[i],vertex,eye_vec,normal,binormal,tangent,albedo,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,specular_blob_intensity,diffuse_light,specular_light); } @@ -1652,11 +1720,15 @@ FRAGMENT_SHADER_CODE diffuse_light=mix(diffuse_light,vec3(0.0),metallic); ambient_light=mix(ambient_light,vec3(0.0),metallic); { + +#if defined(DIFFUSE_TOON) + //simplify for toon, as + specular_light *= specular * metallic * albedo * 2.0; +#else //brdf approximation (Lazarov 2013) float ndotv = clamp(dot(normal,eye_vec),0.0,1.0); - + vec3 dielectric = vec3(0.034) * specular * 2.0; //energy conservation - vec3 dielectric = vec3(0.034) * 0.5 * 2.0; vec3 f0 = mix(dielectric, albedo, metallic); const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); const vec4 c1 = vec4( 1.0, 0.0425, 1.04, -0.04); @@ -1665,6 +1737,8 @@ FRAGMENT_SHADER_CODE vec2 brdf = vec2( -1.04, 1.04 ) * a004 + r.zw; specular_light *= min(1.0,50.0 * f0.g) * brdf.y + brdf.x * f0; +#endif + } if (fog_color_enabled.a > 0.5) { |