diff options
Diffstat (limited to 'drivers/gles2/shaders/scene.glsl')
| -rw-r--r-- | drivers/gles2/shaders/scene.glsl | 96 |
1 files changed, 71 insertions, 25 deletions
diff --git a/drivers/gles2/shaders/scene.glsl b/drivers/gles2/shaders/scene.glsl index 1c35b455c4..2aef913ae8 100644 --- a/drivers/gles2/shaders/scene.glsl +++ b/drivers/gles2/shaders/scene.glsl @@ -424,9 +424,12 @@ void main() { #endif + mat4 local_projection_matrix = projection_matrix; + mat4 modelview = camera_inverse_matrix * world_matrix; float roughness = 1.0; +#define projection_matrix local_projection_matrix #define world_transform world_matrix { @@ -911,6 +914,7 @@ uniform mat4 radiance_inverse_xform; #endif +uniform vec4 bg_color; uniform float bg_energy; uniform float ambient_sky_contribution; @@ -1147,7 +1151,8 @@ void light_compute( float clearcoat_gloss, float anisotropy, inout vec3 diffuse_light, - inout vec3 specular_light) { + inout vec3 specular_light, + inout float alpha) { //this makes lights behave closer to linear, but then addition of lights looks bad //better left disabled @@ -1302,10 +1307,10 @@ LIGHT_SHADER_CODE // shlick+ggx as default #if defined(LIGHT_USE_ANISOTROPY) - float alpha = roughness * roughness; + float alpha_ggx = roughness * roughness; float aspect = sqrt(1.0 - anisotropy * 0.9); - float ax = alpha / aspect; - float ay = alpha * aspect; + float ax = alpha_ggx / aspect; + float ay = alpha_ggx * aspect; float XdotH = dot(T, H); float YdotH = dot(B, H); float D = D_GGX_anisotropic(cNdotH, ax, ay, XdotH, YdotH, cNdotH); @@ -1313,10 +1318,10 @@ LIGHT_SHADER_CODE float G = V_GGX_anisotropic(ax, ay, dot(T, V), dot(T, L), dot(B, V), dot(B, L), cNdotV, cNdotL); #else - float alpha = roughness * roughness; - float D = D_GGX(cNdotH, alpha); - //float G = G_GGX_2cos(cNdotL, alpha) * G_GGX_2cos(cNdotV, alpha); - float G = V_GGX(cNdotL, cNdotV, alpha); + float alpha_ggx = roughness * roughness; + float D = D_GGX(cNdotH, alpha_ggx); + //float G = G_GGX_2cos(cNdotL, alpha_ggx) * G_GGX_2cos(cNdotV, alpha_ggx); + float G = V_GGX(cNdotL, cNdotV, alpha_ggx); #endif // F vec3 f0 = F0(metallic, specular, diffuse_color); @@ -1346,6 +1351,10 @@ LIGHT_SHADER_CODE #endif } +#ifdef USE_SHADOW_TO_OPACITY + alpha = min(alpha, clamp(1.0 - length(attenuation), 0.0, 1.0)); +#endif + #endif //defined(USE_LIGHT_SHADER_CODE) } @@ -1531,17 +1540,21 @@ FRAGMENT_SHADER_CODE vec3 eye_position = view; +#if !defined(USE_SHADOW_TO_OPACITY) + #if defined(ALPHA_SCISSOR_USED) if (alpha < alpha_scissor) { discard; } -#endif +#endif // ALPHA_SCISSOR_USED #ifdef USE_DEPTH_PREPASS if (alpha < 0.99) { discard; } -#endif +#endif // USE_DEPTH_PREPASS + +#endif // !USE_SHADOW_TO_OPACITY #ifdef BASE_PASS //none @@ -1558,7 +1571,6 @@ FRAGMENT_SHADER_CODE ref_vec.z *= -1.0; specular_light = textureCubeLod(radiance_map, ref_vec, roughness * RADIANCE_MAX_LOD).xyz * bg_energy; - { vec3 ambient_dir = normalize((radiance_inverse_xform * vec4(normal, 0.0)).xyz); vec3 env_ambient = textureCubeLod(radiance_map, ambient_dir, RADIANCE_MAX_LOD).xyz * bg_energy; @@ -1569,6 +1581,7 @@ FRAGMENT_SHADER_CODE #else ambient_light = ambient_color.rgb; + specular_light = bg_color.rgb * bg_energy; #endif @@ -1628,6 +1641,19 @@ FRAGMENT_SHADER_CODE #endif // defined(USE_REFLECTION_PROBE1) || defined(USE_REFLECTION_PROBE2) + // scales the specular reflections, needs to be be computed before lighting happens, + // but after environment and reflection probes are added + //TODO: this curve is not really designed for gammaspace, should be adjusted + const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); + 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 env = vec2(-1.04, 1.04) * a004 + r.zw; + + vec3 f0 = F0(metallic, specular, albedo); + specular_light *= env.x * f0 + env.y; + #ifdef USE_LIGHTMAP //ambient light will come entirely from lightmap is lightmap is used ambient_light = texture2D(lightmap, uv2_interp).rgb * lightmap_energy; @@ -1699,6 +1725,8 @@ FRAGMENT_SHADER_CODE #endif +#if !defined(SHADOWS_DISABLED) + #ifdef USE_SHADOW { highp vec4 splane = shadow_coord; @@ -1729,6 +1757,8 @@ FRAGMENT_SHADER_CODE } #endif +#endif //SHADOWS_DISABLED + #endif //type omni #ifdef LIGHT_MODE_DIRECTIONAL @@ -1739,6 +1769,8 @@ FRAGMENT_SHADER_CODE #endif float depth_z = -vertex.z; +#if !defined(SHADOWS_DISABLED) + #ifdef USE_SHADOW #ifdef USE_VERTEX_LIGHTING @@ -1957,6 +1989,8 @@ FRAGMENT_SHADER_CODE #endif //use shadow +#endif // SHADOWS_DISABLED + #endif #ifdef LIGHT_MODE_SPOT @@ -1993,6 +2027,8 @@ FRAGMENT_SHADER_CODE #endif +#if !defined(SHADOWS_DISABLED) + #ifdef USE_SHADOW { highp vec4 splane = shadow_coord; @@ -2002,6 +2038,8 @@ FRAGMENT_SHADER_CODE } #endif +#endif // SHADOWS_DISABLED + #endif // LIGHT_MODE_SPOT #ifdef USE_VERTEX_LIGHTING @@ -2032,13 +2070,32 @@ FRAGMENT_SHADER_CODE clearcoat_gloss, anisotropy, diffuse_light, - specular_light); + specular_light, + alpha); #endif //vertex lighting #endif //USE_LIGHTING //compute and merge +#ifdef USE_SHADOW_TO_OPACITY + + alpha = min(alpha, clamp(length(ambient_light), 0.0, 1.0)); + +#if defined(ALPHA_SCISSOR_USED) + if (alpha < alpha_scissor) { + discard; + } +#endif // ALPHA_SCISSOR_USED + +#ifdef USE_DEPTH_PREPASS + if (alpha < 0.99) { + discard; + } +#endif // USE_DEPTH_PREPASS + +#endif // !USE_SHADOW_TO_OPACITY + #ifndef RENDER_DEPTH #ifdef SHADELESS @@ -2065,17 +2122,6 @@ FRAGMENT_SHADER_CODE #if defined(DIFFUSE_TOON) //simplify for toon, as specular_light *= specular * metallic * albedo * 2.0; -#else - //TODO: this curve is not really designed for gammaspace, should be adjusted - const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); - 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 env = vec2(-1.04, 1.04) * a004 + r.zw; - - vec3 f0 = F0(metallic, specular, albedo); - specular_light *= env.x * f0 + env.y; #endif } @@ -2087,8 +2133,6 @@ FRAGMENT_SHADER_CODE #endif // gl_FragColor = vec4(normal, 1.0); -#endif //unshaded - //apply fog #if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) @@ -2143,6 +2187,8 @@ FRAGMENT_SHADER_CODE #endif // defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) +#endif //unshaded + #else // not RENDER_DEPTH //depth render #ifdef USE_RGBA_SHADOWS |