diff options
Diffstat (limited to 'drivers/gles2/shaders')
| -rw-r--r-- | drivers/gles2/shaders/canvas.glsl | 7 | ||||
| -rw-r--r-- | drivers/gles2/shaders/copy.glsl | 22 | ||||
| -rw-r--r-- | drivers/gles2/shaders/scene.glsl | 301 |
3 files changed, 240 insertions, 90 deletions
diff --git a/drivers/gles2/shaders/canvas.glsl b/drivers/gles2/shaders/canvas.glsl index 3db60f7caa..79d4eb2243 100644 --- a/drivers/gles2/shaders/canvas.glsl +++ b/drivers/gles2/shaders/canvas.glsl @@ -96,6 +96,10 @@ VERTEX_SHADER_CODE color_interp = color; +#ifdef USE_PIXEL_SNAP + outvec.xy = floor(outvec + 0.5).xy; +#endif + gl_Position = projection_matrix * outvec; } @@ -144,7 +148,10 @@ void main() { vec4 color = color_interp; +#if !defined(COLOR_USED) + //default behavior, texture by color color *= texture2D(color_texture, uv_interp); +#endif #ifdef SCREEN_UV_USED vec2 screen_uv = gl_FragCoord.xy * screen_pixel_size; diff --git a/drivers/gles2/shaders/copy.glsl b/drivers/gles2/shaders/copy.glsl index 16bbde196d..0b8da4f875 100644 --- a/drivers/gles2/shaders/copy.glsl +++ b/drivers/gles2/shaders/copy.glsl @@ -35,6 +35,8 @@ void main() { #if defined(USE_CUBEMAP) || defined(USE_PANORAMA) cube_interp = cube_in; +#elif defined(USE_ASYM_PANO) + uv_interp = vertex_attrib.xy; #else uv_interp = uv_in; #endif @@ -68,6 +70,11 @@ varying vec2 uv_interp; #endif /* clang-format on */ +#ifdef USE_ASYM_PANO +uniform highp mat4 pano_transform; +uniform highp vec4 asym_proj; +#endif + #ifdef USE_CUBEMAP uniform samplerCube source_cube; // texunit:0 #else @@ -108,6 +115,21 @@ void main() { vec4 color = texturePanorama(source, normalize(cube_interp)); +#elif defined(USE_ASYM_PANO) + + // When an asymmetrical projection matrix is used (applicable for stereoscopic rendering i.e. VR) we need to do this calculation per fragment to get a perspective correct result. + // Note that we're ignoring the x-offset for IPD, with Z sufficiently in the distance it becomes neglectible, as a result we could probably just set cube_normal.z to -1. + // The Matrix[2][0] (= asym_proj.x) and Matrix[2][1] (= asym_proj.z) values are what provide the right shift in the image. + + vec3 cube_normal; + cube_normal.z = -1000000.0; + cube_normal.x = (cube_normal.z * (-uv_interp.x - asym_proj.x)) / asym_proj.y; + cube_normal.y = (cube_normal.z * (-uv_interp.y - asym_proj.z)) / asym_proj.a; + cube_normal = mat3(pano_transform) * cube_normal; + cube_normal.z = -cube_normal.z; + + vec4 color = texturePanorama(source, normalize(cube_normal.xyz)); + #elif defined(USE_CUBEMAP) vec4 color = textureCube(source_cube, normalize(cube_interp)); #else diff --git a/drivers/gles2/shaders/scene.glsl b/drivers/gles2/shaders/scene.glsl index 42b50790b2..15b90a7771 100644 --- a/drivers/gles2/shaders/scene.glsl +++ b/drivers/gles2/shaders/scene.glsl @@ -75,17 +75,15 @@ attribute highp vec4 instance_custom_data; // attrib:12 // uniforms // -uniform mat4 camera_matrix; -uniform mat4 camera_inverse_matrix; -uniform mat4 projection_matrix; -uniform mat4 projection_inverse_matrix; +uniform highp mat4 camera_matrix; +uniform highp mat4 camera_inverse_matrix; +uniform highp mat4 projection_matrix; +uniform highp mat4 projection_inverse_matrix; -uniform mat4 world_transform; +uniform highp mat4 world_transform; uniform highp float time; -uniform float normal_mult; - #ifdef RENDER_DEPTH uniform float light_bias; uniform float light_normal_bias; @@ -156,22 +154,22 @@ varying highp vec3 diffuse_interp; varying highp vec3 specular_interp; // general for all lights -uniform vec4 light_color; -uniform float light_specular; +uniform highp vec4 light_color; +uniform highp float light_specular; // directional -uniform vec3 light_direction; +uniform highp vec3 light_direction; // omni -uniform vec3 light_position; +uniform highp vec3 light_position; -uniform float light_range; -uniform float light_attenuation; +uniform highp float light_range; +uniform highp float light_attenuation; // spot -uniform float light_spot_attenuation; -uniform float light_spot_range; -uniform float light_spot_angle; +uniform highp float light_spot_attenuation; +uniform highp float light_spot_range; +uniform highp float light_spot_angle; void light_compute( vec3 N, @@ -247,7 +245,7 @@ void light_compute( float cLdotH = max(dot(L, H), 0.0); float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; float blinn = pow(cNdotH, shininess); - blinn *= (shininess + 8.0) / (8.0 * 3.141592654); + blinn *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); specular_brdf_NL = (blinn) / max(4.0 * cNdotV * cNdotL, 0.75); #endif @@ -262,9 +260,9 @@ void light_compute( #ifdef USE_REFLECTION_PROBE1 -uniform mat4 refprobe1_local_matrix; +uniform highp mat4 refprobe1_local_matrix; varying mediump vec4 refprobe1_reflection_normal_blend; -uniform vec3 refprobe1_box_extents; +uniform highp vec3 refprobe1_box_extents; #ifndef USE_LIGHTMAP varying mediump vec3 refprobe1_ambient_normal; @@ -274,9 +272,9 @@ varying mediump vec3 refprobe1_ambient_normal; #ifdef USE_REFLECTION_PROBE2 -uniform mat4 refprobe2_local_matrix; +uniform highp mat4 refprobe2_local_matrix; varying mediump vec4 refprobe2_reflection_normal_blend; -uniform vec3 refprobe2_box_extents; +uniform highp vec3 refprobe2_box_extents; #ifndef USE_LIGHTMAP varying mediump vec3 refprobe2_ambient_normal; @@ -286,6 +284,32 @@ varying mediump vec3 refprobe2_ambient_normal; #endif //vertex lighting for refprobes +#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) + +varying vec4 fog_interp; + +uniform mediump vec4 fog_color_base; +#ifdef LIGHT_MODE_DIRECTIONAL +uniform mediump vec4 fog_sun_color_amount; +#endif + +uniform bool fog_transmit_enabled; +uniform mediump float fog_transmit_curve; + +#ifdef FOG_DEPTH_ENABLED +uniform highp float fog_depth_begin; +uniform mediump float fog_depth_curve; +uniform mediump float fog_max_distance; +#endif + +#ifdef FOG_HEIGHT_ENABLED +uniform highp float fog_height_min; +uniform highp float fog_height_max; +uniform mediump float fog_height_curve; +#endif + +#endif //fog + void main() { highp vec4 vertex = vertex_attrib; @@ -304,11 +328,10 @@ void main() { #endif - vec3 normal = normal_attrib * normal_mult; + vec3 normal = normal_attrib; #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) vec3 tangent = tangent_attrib.xyz; - tangent *= normal_mult; float binormalf = tangent_attrib.a; vec3 binormal = normalize(cross(normal, tangent) * binormalf); #endif @@ -333,7 +356,7 @@ 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 @@ -379,7 +402,7 @@ void main() { #endif - mat4 modelview = camera_matrix * world_matrix; + mat4 modelview = camera_inverse_matrix * world_matrix; float roughness = 1.0; #define world_transform world_matrix @@ -406,11 +429,11 @@ VERTEX_SHADER_CODE #endif #if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) - vertex = camera_matrix * vertex; - normal = normalize((camera_matrix * vec4(normal, 0.0)).xyz); + vertex = camera_inverse_matrix * vertex; + normal = normalize((camera_inverse_matrix * vec4(normal, 0.0)).xyz); #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - tangent = normalize((camera_matrix * vec4(tangent, 0.0)).xyz); - binormal = normalize((camera_matrix * vec4(binormal, 0.0)).xyz); + tangent = normalize((camera_inverse_matrix * vec4(tangent, 0.0)).xyz); + binormal = normalize((camera_inverse_matrix * vec4(binormal, 0.0)).xyz); #endif #endif @@ -583,6 +606,37 @@ VERTEX_SHADER_CODE #endif //USE_REFLECTION_PROBE2 +#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) + + float fog_amount = 0.0; + +#ifdef LIGHT_MODE_DIRECTIONAL + + vec3 fog_color = mix(fog_color_base.rgb, fog_sun_color_amount.rgb, fog_sun_color_amount.a * pow(max(dot(normalize(vertex_interp), light_direction), 0.0), 8.0)); +#else + vec3 fog_color = fog_color_base.rgb; +#endif + +#ifdef FOG_DEPTH_ENABLED + + { + + float fog_z = smoothstep(fog_depth_begin, fog_max_distance, length(vertex)); + + fog_amount = pow(fog_z, fog_depth_curve) * fog_color_base.a; + } +#endif + +#ifdef FOG_HEIGHT_ENABLED + { + float y = (camera_matrix * vec4(vertex_interp, 1.0)).y; + fog_amount = max(fog_amount, pow(smoothstep(fog_height_min, fog_height_max, y), fog_height_curve)); + } +#endif + fog_interp = vec4(fog_color, fog_amount); + +#endif //fog + #endif //use vertex lighting gl_Position = projection_matrix * vec4(vertex_interp, 1.0); } @@ -613,13 +667,13 @@ precision highp int; // uniforms // -uniform mat4 camera_matrix; +uniform highp mat4 camera_matrix; /* clang-format on */ -uniform mat4 camera_inverse_matrix; -uniform mat4 projection_matrix; -uniform mat4 projection_inverse_matrix; +uniform highp mat4 camera_inverse_matrix; +uniform highp mat4 projection_matrix; +uniform highp mat4 projection_inverse_matrix; -uniform mat4 world_transform; +uniform highp mat4 world_transform; uniform highp float time; @@ -646,9 +700,9 @@ varying mediump vec3 refprobe1_ambient_normal; #else uniform bool refprobe1_use_box_project; -uniform vec3 refprobe1_box_extents; +uniform highp vec3 refprobe1_box_extents; uniform vec3 refprobe1_box_offset; -uniform mat4 refprobe1_local_matrix; +uniform highp mat4 refprobe1_local_matrix; #endif //use vertex lighting @@ -673,9 +727,9 @@ varying mediump vec3 refprobe2_ambient_normal; #else uniform bool refprobe2_use_box_project; -uniform vec3 refprobe2_box_extents; +uniform highp vec3 refprobe2_box_extents; uniform vec3 refprobe2_box_offset; -uniform mat4 refprobe2_local_matrix; +uniform highp mat4 refprobe2_local_matrix; #endif //use vertex lighting @@ -816,27 +870,29 @@ uniform float ambient_energy; varying highp vec3 diffuse_interp; varying highp vec3 specular_interp; +uniform highp vec3 light_direction; //may be used by fog, so leave here + #else //done in fragment // general for all lights -uniform vec4 light_color; -uniform float light_specular; +uniform highp vec4 light_color; +uniform highp float light_specular; // directional -uniform vec3 light_direction; +uniform highp vec3 light_direction; // omni -uniform vec3 light_position; +uniform highp vec3 light_position; -uniform float light_attenuation; +uniform highp float light_attenuation; // spot -uniform float light_spot_attenuation; -uniform float light_spot_range; -uniform float light_spot_angle; +uniform highp float light_spot_attenuation; +uniform highp float light_spot_range; +uniform highp float light_spot_angle; #endif //this is needed outside above if because dual paraboloid wants it -uniform float light_range; +uniform highp float light_range; #ifdef USE_SHADOW @@ -953,9 +1009,7 @@ float G_GGX_2cos(float cos_theta_m, float alpha) { // This approximates G_GGX_2cos(cos_theta_l, alpha) * G_GGX_2cos(cos_theta_v, alpha) // See Filament docs, Specular G section. float V_GGX(float cos_theta_l, float cos_theta_v, float alpha) { - float v = cos_theta_l * (cos_theta_v * (1.0 - alpha) + alpha); - float l = cos_theta_v * (cos_theta_l * (1.0 - alpha) + alpha); - return 0.5 / (v + l); + return 0.5 / mix(2.0 * cos_theta_l * cos_theta_v, cos_theta_l + cos_theta_v, alpha); } float D_GGX(float cos_theta_m, float alpha) { @@ -1065,7 +1119,19 @@ LIGHT_SHADER_CODE float NdotL = dot(N, L); float cNdotL = max(NdotL, 0.0); // clamped NdotL float NdotV = dot(N, V); - float cNdotV = max(NdotV, 0.0); + float cNdotV = max(abs(NdotV), 1e-6); + +#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_BLINN) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_USE_CLEARCOAT) + vec3 H = normalize(V + L); +#endif + +#if defined(SPECULAR_BLINN) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_USE_CLEARCOAT) + float cNdotH = max(dot(N, H), 0.0); +#endif + +#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_USE_CLEARCOAT) + float cLdotH = max(dot(L, H), 0.0); +#endif if (metallic < 1.0) { #if defined(DIFFUSE_OREN_NAYAR) @@ -1101,13 +1167,9 @@ LIGHT_SHADER_CODE #elif defined(DIFFUSE_BURLEY) { - - vec3 H = normalize(V + L); - float cLdotH = max(0.0, dot(L, H)); - - float FD90 = 0.5 + 2.0 * cLdotH * cLdotH * roughness; - float FdV = 1.0 + (FD90 - 1.0) * SchlickFresnel(cNdotV); - float FdL = 1.0 + (FD90 - 1.0) * SchlickFresnel(cNdotL); + float FD90_minus_1 = 2.0 * cLdotH * cLdotH * roughness - 0.5; + float FdV = 1.0 + FD90_minus_1 * SchlickFresnel(cNdotV); + float FdL = 1.0 + FD90_minus_1 * SchlickFresnel(cNdotL); diffuse_brdf_NL = (1.0 / M_PI) * FdV * FdL * cNdotL; /* float energyBias = mix(roughness, 0.0, 0.5); @@ -1150,13 +1212,9 @@ LIGHT_SHADER_CODE #if defined(SPECULAR_BLINN) //normalized blinn - vec3 H = normalize(V + L); - float cNdotH = max(dot(N, H), 0.0); - float cVdotH = max(dot(V, H), 0.0); - float cLdotH = max(dot(L, H), 0.0); float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; float blinn = pow(cNdotH, shininess); - blinn *= (shininess + 8.0) / (8.0 * 3.141592654); + blinn *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); specular_brdf_NL = (blinn) / max(4.0 * cNdotV * cNdotL, 0.75); #elif defined(SPECULAR_PHONG) @@ -1165,7 +1223,7 @@ LIGHT_SHADER_CODE float cRdotV = max(0.0, dot(R, V)); float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; float phong = pow(cRdotV, shininess); - phong *= (shininess + 8.0) / (8.0 * 3.141592654); + phong *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); specular_brdf_NL = (phong) / max(4.0 * cNdotV * cNdotL, 0.75); #elif defined(SPECULAR_TOON) @@ -1181,18 +1239,13 @@ LIGHT_SHADER_CODE #elif defined(SPECULAR_SCHLICK_GGX) // shlick+ggx as default - vec3 H = normalize(V + L); - - float cNdotH = max(dot(N, H), 0.0); - float cLdotH = max(dot(L, H), 0.0); - #if defined(LIGHT_USE_ANISOTROPY) float alpha = roughness * roughness; float aspect = sqrt(1.0 - anisotropy * 0.9); float ax = alpha / aspect; float ay = alpha * aspect; - //float XdotH = dot(T, H); - //float YdotH = dot(B, H); + float XdotH = dot(T, H); + float YdotH = dot(B, H); float D = D_GGX_anisotropic(cNdotH, ax, ay, XdotH, YdotH, cNdotH); //float G = G_GGX_anisotropic_2cos(cNdotL, ax, ay, XdotH, YdotH) * G_GGX_anisotropic_2cos(cNdotV, ax, ay, XdotH, YdotH); float G = V_GGX_anisotropic(ax, ay, dot(T, V), dot(T, L), dot(B, V), dot(B, L), cNdotV, cNdotL)) @@ -1216,24 +1269,18 @@ LIGHT_SHADER_CODE specular_light += specular_brdf_NL * light_color * specular_blob_intensity * attenuation; #if defined(LIGHT_USE_CLEARCOAT) - if (clearcoat_gloss > 0.0) { -#if !defined(SPECULAR_SCHLICK_GGX) && !defined(SPECULAR_BLINN) - vec3 H = normalize(V + L); -#endif + #if !defined(SPECULAR_SCHLICK_GGX) - float cNdotH = max(dot(N, H), 0.0); - float cLdotH = max(dot(L, H), 0.0); - float cLdotH5 = SchlickFresnel(cLdotH); + float cLdotH5 = SchlickFresnel(cLdotH); #endif - float Dr = GTR1(cNdotH, mix(.1, .001, clearcoat_gloss)); - float Fr = mix(.04, 1.0, cLdotH5); - //float Gr = G_GGX_2cos(cNdotL, .25) * G_GGX_2cos(cNdotV, .25); - float Gr = V_GGX(cNdotL, cNdotV, 0.25); + float Dr = GTR1(cNdotH, mix(.1, .001, clearcoat_gloss)); + float Fr = mix(.04, 1.0, cLdotH5); + //float Gr = G_GGX_2cos(cNdotL, .25) * G_GGX_2cos(cNdotV, .25); + float Gr = V_GGX(cNdotL, cNdotV, 0.25); - float clearcoat_specular_brdf_NL = 0.25 * clearcoat * Gr * Fr * Dr * cNdotL; + float clearcoat_specular_brdf_NL = 0.25 * clearcoat * Gr * Fr * Dr * cNdotL; - specular_light += clearcoat_specular_brdf_NL * light_color * specular_blob_intensity * attenuation; - } + specular_light += clearcoat_specular_brdf_NL * light_color * specular_blob_intensity * attenuation; #endif } @@ -1248,8 +1295,7 @@ LIGHT_SHADER_CODE #define SAMPLE_SHADOW_TEXEL(p_shadow, p_pos, p_depth) step(p_depth, texture2D(p_shadow, p_pos).r) #define SAMPLE_SHADOW_TEXEL_PROJ(p_shadow, p_pos) step(p_pos.z, texture2DProj(p_shadow, p_pos).r) -float sample_shadow( - highp sampler2D shadow, highp vec4 spos) { +float sample_shadow(highp sampler2D shadow, highp vec4 spos) { #ifdef SHADOW_MODE_PCF_13 @@ -1296,6 +1342,36 @@ float sample_shadow( #endif +#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) + +#if defined(USE_VERTEX_LIGHTING) + +varying vec4 fog_interp; + +#else +uniform mediump vec4 fog_color_base; +#ifdef LIGHT_MODE_DIRECTIONAL +uniform mediump vec4 fog_sun_color_amount; +#endif + +uniform bool fog_transmit_enabled; +uniform mediump float fog_transmit_curve; + +#ifdef FOG_DEPTH_ENABLED +uniform highp float fog_depth_begin; +uniform mediump float fog_depth_curve; +uniform mediump float fog_max_distance; +#endif + +#ifdef FOG_HEIGHT_ENABLED +uniform highp float fog_height_min; +uniform highp float fog_height_max; +uniform mediump float fog_height_curve; +#endif + +#endif //vertex lit +#endif //fog + void main() { #ifdef RENDER_DEPTH_DUAL_PARABOLOID @@ -1540,7 +1616,7 @@ FRAGMENT_SHADER_CODE highp vec4 splane = shadow_coord; float shadow_len = length(splane.xyz); - splane = normalize(splane.xyz); + splane.xyz = normalize(splane.xyz); vec4 clamp_rect = light_clamp; @@ -1834,12 +1910,12 @@ FRAGMENT_SHADER_CODE highp vec4 splane = shadow_coord; splane.xyz /= splane.w; - float shadow = sample_shadow(light_shadow_atlas, splane.xy, splane.z); + float shadow = sample_shadow(light_shadow_atlas, splane); light_att *= shadow; } #endif -#endif +#endif // LIGHT_MODE_SPOT #ifdef USE_VERTEX_LIGHTING //vertex lighting @@ -1926,5 +2002,50 @@ FRAGMENT_SHADER_CODE #endif //unshaded +//apply fog +#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) + +#if defined(USE_VERTEX_LIGHTING) + + gl_FragColor.rgb = mix(gl_FragColor.rgb, fog_interp.rgb, fog_interp.a); +#else //pixel based fog + float fog_amount = 0.0; + +#ifdef LIGHT_MODE_DIRECTIONAL + + vec3 fog_color = mix(fog_color_base.rgb, fog_sun_color_amount.rgb, fog_sun_color_amount.a * pow(max(dot(eye_position, light_direction), 0.0), 8.0)); +#else + vec3 fog_color = fog_color_base.rgb; +#endif + +#ifdef FOG_DEPTH_ENABLED + + { + + float fog_z = smoothstep(fog_depth_begin, fog_max_distance, length(vertex)); + + fog_amount = pow(fog_z, fog_depth_curve) * fog_color_base.a; + + if (fog_transmit_enabled) { + vec3 total_light = gl_FragColor.rgb; + float transmit = pow(fog_z, fog_transmit_curve); + fog_color = mix(max(total_light, fog_color), fog_color, transmit); + } + } +#endif + +#ifdef FOG_HEIGHT_ENABLED + { + float y = (camera_matrix * vec4(vertex, 1.0)).y; + fog_amount = max(fog_amount, pow(smoothstep(fog_height_min, fog_height_max, y), fog_height_curve)); + } +#endif + + gl_FragColor.rgb = mix(gl_FragColor.rgb, fog_color, fog_amount); + +#endif //use vertex lit + +#endif // defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) + #endif // not RENDER_DEPTH } |