diff options
Diffstat (limited to 'intern/cycles/render/nodes.cpp')
| -rw-r--r-- | intern/cycles/render/nodes.cpp | 45 |
1 files changed, 33 insertions, 12 deletions
diff --git a/intern/cycles/render/nodes.cpp b/intern/cycles/render/nodes.cpp index 1e09b71b340..1a29663ec5e 100644 --- a/intern/cycles/render/nodes.cpp +++ b/intern/cycles/render/nodes.cpp @@ -632,7 +632,7 @@ typedef struct SunSky { /* Parameter */ float radiance_x, radiance_y, radiance_z; - float config_x[9], config_y[9], config_z[9], nishita_data[9]; + float config_x[9], config_y[9], config_z[9], nishita_data[10]; } SunSky; /* Preetham model */ @@ -749,18 +749,24 @@ static void sky_texture_precompute_hosek(SunSky *sunsky, static void sky_texture_precompute_nishita(SunSky *sunsky, bool sun_disc, float sun_size, + float sun_intensity, float sun_elevation, float sun_rotation, - int altitude, + float altitude, float air_density, float dust_density) { /* sample 2 sun pixels */ float pixel_bottom[3]; float pixel_top[3]; - float altitude_f = (float)altitude; SKY_nishita_skymodel_precompute_sun( - sun_elevation, sun_size, altitude_f, air_density, dust_density, pixel_bottom, pixel_top); + sun_elevation, sun_size, altitude, air_density, dust_density, pixel_bottom, pixel_top); + /* limit sun rotation between 0 and 360 degrees */ + sun_rotation = fmodf(sun_rotation, M_2PI_F); + if (sun_rotation < 0.0f) { + sun_rotation += M_2PI_F; + } + sun_rotation = M_2PI_F - sun_rotation; /* send data to svm_sky */ sunsky->nishita_data[0] = pixel_bottom[0]; sunsky->nishita_data[1] = pixel_bottom[1]; @@ -769,8 +775,9 @@ static void sky_texture_precompute_nishita(SunSky *sunsky, sunsky->nishita_data[4] = pixel_top[1]; sunsky->nishita_data[5] = pixel_top[2]; sunsky->nishita_data[6] = sun_elevation; - sunsky->nishita_data[7] = M_2PI_F - sun_rotation; + sunsky->nishita_data[7] = sun_rotation; sunsky->nishita_data[8] = sun_disc ? sun_size : 0.0f; + sunsky->nishita_data[9] = sun_intensity; } NODE_DEFINE(SkyTextureNode) @@ -790,9 +797,10 @@ NODE_DEFINE(SkyTextureNode) SOCKET_FLOAT(ground_albedo, "Ground Albedo", 0.3f); SOCKET_BOOLEAN(sun_disc, "Sun Disc", true); SOCKET_FLOAT(sun_size, "Sun Size", 0.009512f); + SOCKET_FLOAT(sun_intensity, "Sun Intensity", 1.0f); SOCKET_FLOAT(sun_elevation, "Sun Elevation", M_PI_2_F); SOCKET_FLOAT(sun_rotation, "Sun Rotation", 0.0f); - SOCKET_INT(altitude, "Altitude", 0); + SOCKET_FLOAT(altitude, "Altitude", 1.0f); SOCKET_FLOAT(air_density, "Air", 1.0f); SOCKET_FLOAT(dust_density, "Dust", 1.0f); SOCKET_FLOAT(ozone_density, "Ozone", 1.0f); @@ -820,12 +828,17 @@ void SkyTextureNode::compile(SVMCompiler &compiler) else if (type == NODE_SKY_HOSEK) sky_texture_precompute_hosek(&sunsky, sun_direction, turbidity, ground_albedo); else if (type == NODE_SKY_NISHITA) { + /* Clamp altitude to reasonable values. + * Below 1m causes numerical issues and above 60km is space. */ + float clamped_altitude = clamp(altitude, 1.0f, 59999.0f); + sky_texture_precompute_nishita(&sunsky, sun_disc, sun_size, + sun_intensity, sun_elevation, sun_rotation, - altitude, + clamped_altitude, air_density, dust_density); /* precomputed texture image parameters */ @@ -837,7 +850,7 @@ void SkyTextureNode::compile(SVMCompiler &compiler) /* precompute sky texture */ if (handle.empty()) { SkyLoader *loader = new SkyLoader( - sun_elevation, altitude, air_density, dust_density, ozone_density); + sun_elevation, clamped_altitude, air_density, dust_density, ozone_density); handle = image_manager->add_image(loader, impar); } } @@ -892,7 +905,10 @@ void SkyTextureNode::compile(SVMCompiler &compiler) __float_as_uint(sunsky.nishita_data[5]), __float_as_uint(sunsky.nishita_data[6]), __float_as_uint(sunsky.nishita_data[7])); - compiler.add_node(__float_as_uint(sunsky.nishita_data[8]), handle.svm_slot(), 0, 0); + compiler.add_node(__float_as_uint(sunsky.nishita_data[8]), + __float_as_uint(sunsky.nishita_data[9]), + handle.svm_slot(), + 0); } tex_mapping.compile_end(compiler, vector_in, vector_offset); @@ -908,12 +924,17 @@ void SkyTextureNode::compile(OSLCompiler &compiler) else if (type == NODE_SKY_HOSEK) sky_texture_precompute_hosek(&sunsky, sun_direction, turbidity, ground_albedo); else if (type == NODE_SKY_NISHITA) { + /* Clamp altitude to reasonable values. + * Below 1m causes numerical issues and above 60km is space. */ + float clamped_altitude = clamp(altitude, 1.0f, 59999.0f); + sky_texture_precompute_nishita(&sunsky, sun_disc, sun_size, + sun_intensity, sun_elevation, sun_rotation, - altitude, + clamped_altitude, air_density, dust_density); /* precomputed texture image parameters */ @@ -925,7 +946,7 @@ void SkyTextureNode::compile(OSLCompiler &compiler) /* precompute sky texture */ if (handle.empty()) { SkyLoader *loader = new SkyLoader( - sun_elevation, altitude, air_density, dust_density, ozone_density); + sun_elevation, clamped_altitude, air_density, dust_density, ozone_density); handle = image_manager->add_image(loader, impar); } } @@ -940,7 +961,7 @@ void SkyTextureNode::compile(OSLCompiler &compiler) compiler.parameter_array("config_x", sunsky.config_x, 9); compiler.parameter_array("config_y", sunsky.config_y, 9); compiler.parameter_array("config_z", sunsky.config_z, 9); - compiler.parameter_array("nishita_data", sunsky.nishita_data, 9); + compiler.parameter_array("nishita_data", sunsky.nishita_data, 10); /* nishita texture */ if (type == NODE_SKY_NISHITA) { compiler.parameter_texture("filename", handle.svm_slot()); |