diff options
Diffstat (limited to 'drivers/gles2/shaders/scene.glsl')
| -rw-r--r-- | drivers/gles2/shaders/scene.glsl | 354 |
1 files changed, 165 insertions, 189 deletions
diff --git a/drivers/gles2/shaders/scene.glsl b/drivers/gles2/shaders/scene.glsl index 3e64c92e96..8bcb3b5f1d 100644 --- a/drivers/gles2/shaders/scene.glsl +++ b/drivers/gles2/shaders/scene.glsl @@ -10,8 +10,6 @@ precision mediump int; #include "stdlib.glsl" - - // // attributes // @@ -66,8 +64,6 @@ attribute highp vec4 instance_custom_data; // attrib:8 #endif - - // // uniforms // @@ -88,7 +84,6 @@ uniform float light_bias; uniform float light_normal_bias; #endif - // // varyings // @@ -113,7 +108,6 @@ varying vec2 uv_interp; varying vec2 uv2_interp; #endif - VERTEX_SHADER_GLOBALS void main() { @@ -124,10 +118,11 @@ void main() { #ifdef USE_INSTANCING { - highp mat4 m = mat4(instance_xform_row_0, - instance_xform_row_1, - instance_xform_row_2, - vec4(0.0, 0.0, 0.0, 1.0)); + highp mat4 m = mat4( + instance_xform_row_0, + instance_xform_row_1, + instance_xform_row_2, + vec4(0.0, 0.0, 0.0, 1.0)); world_matrix = world_matrix * transpose(m); } #endif @@ -161,14 +156,14 @@ void main() { normal = normalize((world_matrix * vec4(normal, 0.0)).xyz); #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - tangent = normalize((world_matrix * vec4(tangent, 0.0)),xyz); + tangent = normalize((world_matrix * vec4(tangent, 0.0)), xyz); binormal = normalize((world_matrix * vec4(binormal, 0.0)).xyz); #endif #endif #ifdef USE_SKELETON - highp mat4 bone_transform = mat4(1.0); + highp mat4 bone_transform = mat4(0.0); #ifdef USE_SKELETON_SOFTWARE // passing the transform as attributes @@ -185,10 +180,11 @@ void main() { for (int i = 0; i < 4; i++) { ivec2 tex_ofs = ivec2(int(bone_ids[i]) * 3, 0); - highp mat4 b = mat4(texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(0, 0)), - texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(1, 0)), - texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(2, 0)), - vec4(0.0, 0.0, 0.0, 1.0)); + highp mat4 b = mat4( + texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(0, 0)), + texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(1, 0)), + texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(2, 0)), + vec4(0.0, 0.0, 0.0, 1.0)); bone_transform += transpose(b) * bone_weights[i]; } @@ -199,7 +195,6 @@ void main() { world_matrix = bone_transform * world_matrix; #endif - #ifdef USE_INSTANCING vec4 instance_custom = instance_custom_data; #else @@ -207,7 +202,6 @@ void main() { #endif - mat4 modelview = camera_matrix * world_matrix; #define world_transform world_matrix @@ -258,11 +252,15 @@ VERTEX_SHADER_CODE #endif gl_Position = projection_matrix * vec4(vertex_interp, 1.0); - } [fragment] -#extension GL_ARB_shader_texture_lod : require +#extension GL_ARB_shader_texture_lod : enable + +#ifndef GL_ARB_shader_texture_lod +#define texture2DLod(img, coord, lod) texture2D(img, coord) +#define textureCubeLod(img, coord, lod) textureCube(img, coord) +#endif #ifdef USE_GLES_OVER_GL #define mediump @@ -289,7 +287,6 @@ uniform mat4 world_transform; uniform highp float time; - #ifdef SCREEN_UV_USED uniform vec2 screen_pixel_size; #endif @@ -343,7 +340,6 @@ uniform float light_spot_attenuation; uniform float light_spot_range; uniform float light_spot_angle; - // shadows uniform highp sampler2D light_shadow_atlas; //texunit:-4 uniform float light_has_shadow; @@ -362,7 +358,6 @@ uniform mat4 light_shadow_matrix3; uniform mat4 light_shadow_matrix4; #endif - // // varyings // @@ -397,27 +392,27 @@ vec3 metallic_to_specular_color(float metallic, float specular, vec3 albedo) { FRAGMENT_SHADER_GLOBALS - #ifdef LIGHT_PASS -void light_compute(vec3 N, - vec3 L, - vec3 V, - vec3 B, - vec3 T, - vec3 light_color, - vec3 attenuation, - vec3 diffuse_color, - vec3 transmission, - float specular_blob_intensity, - float roughness, - float metallic, - float rim, - float rim_tint, - float clearcoat, - float clearcoat_gloss, - float anisotropy, - inout vec3 diffuse_light, - inout vec3 specular_light) { +void light_compute( + vec3 N, + vec3 L, + vec3 V, + vec3 B, + vec3 T, + vec3 light_color, + vec3 attenuation, + vec3 diffuse_color, + vec3 transmission, + float specular_blob_intensity, + float roughness, + float metallic, + float rim, + float rim_tint, + float clearcoat, + float clearcoat_gloss, + float anisotropy, + inout vec3 diffuse_light, + inout vec3 specular_light) { float NdotL = dot(N, L); float cNdotL = max(NdotL, 0.0); @@ -430,7 +425,7 @@ void light_compute(vec3 N, // TODO hardcode Oren Nayar for now float diffuse_brdf_NL; - diffuse_brdf_NL = max(0.0,(NdotL + roughness) / ((1.0 + roughness) * (1.0 + roughness))); + diffuse_brdf_NL = max(0.0, (NdotL + roughness) / ((1.0 + roughness) * (1.0 + roughness))); // diffuse_brdf_NL = cNdotL * (1.0 / M_PI); diffuse_light += light_color * diffuse_color * diffuse_brdf_NL * attenuation; @@ -439,25 +434,21 @@ void light_compute(vec3 N, { // calculate specular reflection - vec3 R = normalize(-reflect(L,N)); + vec3 R = normalize(-reflect(L, N)); float cRdotV = max(dot(R, V), 0.0); float blob_intensity = pow(cRdotV, (1.0 - roughness) * 256.0); specular_light += light_color * attenuation * blob_intensity * specular_blob_intensity; - } } - - - // shadows -float sample_shadow(highp sampler2D shadow, - vec2 shadow_pixel_size, - vec2 pos, - float depth, - vec4 clamp_rect) -{ +float sample_shadow( + highp sampler2D shadow, + vec2 shadow_pixel_size, + vec2 pos, + float depth, + vec4 clamp_rect) { // vec4 depth_value = texture2D(shadow, pos); // return depth_value.z; @@ -465,11 +456,9 @@ float sample_shadow(highp sampler2D shadow, // return (depth_value.x + depth_value.y + depth_value.z + depth_value.w) / 4.0; } - #endif -void main() -{ +void main() { highp vec3 vertex = vertex_interp; vec3 albedo = vec3(1.0); @@ -493,7 +482,6 @@ void main() float ao_light_affect = 0.0; #endif - #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) vec3 binormal = normalize(binormal_interp) * side; vec3 tangent = normalize(tangent_interp) * side; @@ -508,7 +496,6 @@ void main() #endif float normaldepth = 1.0; - #ifdef ALPHA_SCISSOR_USED float alpha_scissor = 0.5; #endif @@ -521,7 +508,6 @@ void main() FRAGMENT_SHADER_CODE - } #if defined(ENABLE_NORMALMAP) @@ -567,7 +553,7 @@ FRAGMENT_SHADER_CODE vec3 attenuation = vec3(omni_attenuation); if (light_has_shadow > 0.5) { - highp vec3 splane = (light_shadow_matrix * vec4(vertex, 1.0)).xyz; + highp vec3 splane = (light_shadow_matrix * vec4(vertex, 1.0)).xyz; float shadow_len = length(splane); splane = normalize(splane); @@ -596,25 +582,26 @@ FRAGMENT_SHADER_CODE } } - light_compute(normal, - normalize(light_vec), - eye_position, - binormal, - tangent, - light_color.xyz * light_energy, - attenuation, - albedo, - transmission, - specular * light_specular, - roughness, - metallic, - rim, - rim_tint, - clearcoat, - clearcoat_gloss, - anisotropy, - diffuse_light, - specular_light); + light_compute( + normal, + normalize(light_vec), + eye_position, + binormal, + tangent, + light_color.xyz * light_energy, + attenuation, + albedo, + transmission, + specular * light_specular, + roughness, + metallic, + rim, + rim_tint, + clearcoat, + clearcoat_gloss, + anisotropy, + diffuse_light, + specular_light); } else if (light_type == LIGHT_TYPE_DIRECTIONAL) { @@ -633,133 +620,130 @@ FRAGMENT_SHADER_CODE if (depth_z < light_split_offsets.x) { #endif - vec3 pssm_coord; - float pssm_fade = 0.0; + vec3 pssm_coord; + float pssm_fade = 0.0; #ifdef LIGHT_USE_PSSM_BLEND - float pssm_blend; - vec3 pssm_coord2; - bool use_blend = true; + float pssm_blend; + vec3 pssm_coord2; + bool use_blend = true; #endif #ifdef LIGHT_USE_PSSM4 - if (depth_z < light_split_offsets.y) { - if (depth_z < light_split_offsets.x) { - highp vec4 splane = (light_shadow_matrix1 * vec4(vertex, 1.0)); - pssm_coord = splane.xyz / splane.w; + if (depth_z < light_split_offsets.y) { + if (depth_z < light_split_offsets.x) { + highp vec4 splane = (light_shadow_matrix1 * vec4(vertex, 1.0)); + pssm_coord = splane.xyz / splane.w; #ifdef LIGHT_USE_PSSM_BLEND - splane = (light_shadow_matrix2 * vec4(vertex, 1.0)); - pssm_coord2 = splane.xyz / splane.w; + splane = (light_shadow_matrix2 * vec4(vertex, 1.0)); + pssm_coord2 = splane.xyz / splane.w; - pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); + pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); #endif - } else { - highp vec4 splane = (light_shadow_matrix2 * vec4(vertex, 1.0)); - pssm_coord = splane.xyz / splane.w; + } else { + highp vec4 splane = (light_shadow_matrix2 * vec4(vertex, 1.0)); + pssm_coord = splane.xyz / splane.w; #ifdef LIGHT_USE_PSSM_BLEND - splane = (light_shadow_matrix3 * vec4(vertex, 1.0)); - pssm_coord2 = splane.xyz / splane.w; + splane = (light_shadow_matrix3 * vec4(vertex, 1.0)); + pssm_coord2 = splane.xyz / splane.w; - pssm_blend = smoothstep(light_split_offsets.x, light_split_offsets.y, depth_z); + pssm_blend = smoothstep(light_split_offsets.x, light_split_offsets.y, depth_z); #endif - } - } else { - if (depth_z < light_split_offsets.z) { + } + } else { + if (depth_z < light_split_offsets.z) { - highp vec4 splane = (light_shadow_matrix3 * vec4(vertex, 1.0)); - pssm_coord = splane.xyz / splane.w; + highp vec4 splane = (light_shadow_matrix3 * vec4(vertex, 1.0)); + pssm_coord = splane.xyz / splane.w; #if defined(LIGHT_USE_PSSM_BLEND) - splane = (light_shadow_matrix4 * vec4(vertex, 1.0)); - pssm_coord2 = splane.xyz / splane.w; - pssm_blend = smoothstep(light_split_offsets.y, light_split_offsets.z, depth_z); + splane = (light_shadow_matrix4 * vec4(vertex, 1.0)); + pssm_coord2 = splane.xyz / splane.w; + pssm_blend = smoothstep(light_split_offsets.y, light_split_offsets.z, depth_z); #endif - } else { + } else { - highp vec4 splane = (light_shadow_matrix4 * vec4(vertex, 1.0)); - pssm_coord = splane.xyz / splane.w; - pssm_fade = smoothstep(light_split_offsets.z, light_split_offsets.w, depth_z); + highp vec4 splane = (light_shadow_matrix4 * vec4(vertex, 1.0)); + pssm_coord = splane.xyz / splane.w; + pssm_fade = smoothstep(light_split_offsets.z, light_split_offsets.w, depth_z); #if defined(LIGHT_USE_PSSM_BLEND) - use_blend = false; + use_blend = false; #endif + } } - } #endif // LIGHT_USE_PSSM4 #ifdef LIGHT_USE_PSSM2 - if (depth_z < light_split_offsets.x) { + if (depth_z < light_split_offsets.x) { - highp vec4 splane = (light_shadow_matrix1 * vec4(vertex, 1.0)); - pssm_coord = splane.xyz / splane.w; + highp vec4 splane = (light_shadow_matrix1 * vec4(vertex, 1.0)); + pssm_coord = splane.xyz / splane.w; #ifdef LIGHT_USE_PSSM_BLEND - splane = (light_shadow_matrix2 * vec4(vertex, 1.0)); - pssm_coord2 = splane.xyz / splane.w; - pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); + splane = (light_shadow_matrix2 * vec4(vertex, 1.0)); + pssm_coord2 = splane.xyz / splane.w; + pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); #endif - } else { - highp vec4 splane = (light_shadow_matrix2 * vec4(vertex, 1.0)); - pssm_coord = splane.xyz / splane.w; - pssm_fade = smoothstep(light_split_offsets.x, light_split_offsets.y, depth_z); + } else { + highp vec4 splane = (light_shadow_matrix2 * vec4(vertex, 1.0)); + pssm_coord = splane.xyz / splane.w; + pssm_fade = smoothstep(light_split_offsets.x, light_split_offsets.y, depth_z); #ifdef LIGHT_USE_PSSM_BLEND - use_blend = false; + use_blend = false; #endif - } + } #endif // LIGHT_USE_PSSM2 #if !defined(LIGHT_USE_PSSM4) && !defined(LIGHT_USE_PSSM2) - { - highp vec4 splane = (light_shadow_matrix1 * vec4(vertex, 1.0)); - pssm_coord = splane.xyz / splane.w; - } + { + highp vec4 splane = (light_shadow_matrix1 * vec4(vertex, 1.0)); + pssm_coord = splane.xyz / splane.w; + } #endif - float shadow = sample_shadow(light_shadow_atlas, vec2(0.0), pssm_coord.xy, pssm_coord.z, light_clamp); + float shadow = sample_shadow(light_shadow_atlas, vec2(0.0), pssm_coord.xy, pssm_coord.z, light_clamp); #ifdef LIGHT_USE_PSSM_BLEND - if (use_blend) { - shadow = mix(shadow, sample_shadow(light_shadow_atlas, vec2(0.0), pssm_coord2.xy, pssm_coord2.z, light_clamp), pssm_blend); - } + if (use_blend) { + shadow = mix(shadow, sample_shadow(light_shadow_atlas, vec2(0.0), pssm_coord2.xy, pssm_coord2.z, light_clamp), pssm_blend); + } #endif - attenuation *= shadow; - - - } - + attenuation *= shadow; + } } light_compute(normal, - normalize(light_vec), - eye_position, - binormal, - tangent, - light_color.xyz * light_energy, - attenuation, - albedo, - transmission, - specular * light_specular, - roughness, - metallic, - rim, - rim_tint, - clearcoat, - clearcoat_gloss, - anisotropy, - diffuse_light, - specular_light); + normalize(light_vec), + eye_position, + binormal, + tangent, + light_color.xyz * light_energy, + attenuation, + albedo, + transmission, + specular * light_specular, + roughness, + metallic, + rim, + rim_tint, + clearcoat, + clearcoat_gloss, + anisotropy, + diffuse_light, + specular_light); } else if (light_type == LIGHT_TYPE_SPOT) { vec3 light_att = vec3(1.0); if (light_has_shadow > 0.5) { - highp vec4 splane = (light_shadow_matrix * vec4(vertex, 1.0)); + highp vec4 splane = (light_shadow_matrix * vec4(vertex, 1.0)); splane.xyz /= splane.w; float shadow = sample_shadow(light_shadow_atlas, vec2(0.0), splane.xy, splane.z, light_clamp); @@ -768,8 +752,6 @@ FRAGMENT_SHADER_CODE } else { light_att = vec3(0.0); } - - } vec3 light_rel_vec = light_position - vertex; @@ -788,25 +770,26 @@ FRAGMENT_SHADER_CODE light_att *= vec3(spot_attenuation); - light_compute(normal, - normalize(light_rel_vec), - eye_position, - binormal, - tangent, - light_color.xyz * light_energy, - light_att, - albedo, - transmission, - specular * light_specular, - roughness, - metallic, - rim, - rim_tint, - clearcoat, - clearcoat_gloss, - anisotropy, - diffuse_light, - specular_light); + light_compute( + normal, + normalize(light_rel_vec), + eye_position, + binormal, + tangent, + light_color.xyz * light_energy, + light_att, + albedo, + transmission, + specular * light_specular, + roughness, + metallic, + rim, + rim_tint, + clearcoat, + clearcoat_gloss, + anisotropy, + diffuse_light, + specular_light); } gl_FragColor = vec4(ambient_light + diffuse_light + specular_light, alpha); @@ -818,7 +801,6 @@ FRAGMENT_SHADER_CODE #ifdef USE_RADIANCE_MAP - vec3 ref_vec = reflect(-eye_position, N); ref_vec = normalize((radiance_inverse_xform * vec4(ref_vec, 0.0)).xyz); @@ -831,7 +813,6 @@ FRAGMENT_SHADER_CODE vec3 env_ambient = textureCubeLod(radiance_map, ambient_dir, RADIANCE_MAX_LOD).xyz * bg_energy; ambient_light = mix(ambient_color.rgb, env_ambient, ambient_sky_contribution); - } ambient_light *= ambient_energy; @@ -855,28 +836,23 @@ FRAGMENT_SHADER_CODE // TODO shadeless { const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); - const vec4 c1 = vec4( 1.0, 0.0425, 1.04, -0.04); + const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04); vec4 r = roughness * c0 + c1; - float ndotv = clamp(dot(normal,eye_position),0.0,1.0); - float a004 = min( r.x * r.x, exp2( -9.28 * ndotv ) ) * r.x + r.y; - vec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw; + float ndotv = clamp(dot(normal, eye_position), 0.0, 1.0); + float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y; + vec2 AB = vec2(-1.04, 1.04) * a004 + r.zw; vec3 specular_color = metallic_to_specular_color(metallic, specular, albedo); specular_light *= AB.x * specular_color + AB.y; } - gl_FragColor = vec4(ambient_light + diffuse_light + specular_light, alpha); // gl_FragColor = vec4(normal, 1.0); - #else gl_FragColor = vec4(albedo, alpha); #endif #endif // RENDER_DEPTH - #endif // lighting - - } |