diff options
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_gen.cpp | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_gen.cpp b/src/video_core/renderer_opengl/gl_shader_gen.cpp index fe23be340..3eeb47d33 100644 --- a/src/video_core/renderer_opengl/gl_shader_gen.cpp +++ b/src/video_core/renderer_opengl/gl_shader_gen.cpp @@ -508,7 +508,8 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) { out += "vec4 diffuse_sum = vec4(0.0, 0.0, 0.0, 1.0);\n" "vec4 specular_sum = vec4(0.0, 0.0, 0.0, 1.0);\n" "vec3 light_vector = vec3(0.0);\n" - "vec3 refl_value = vec3(0.0);\n"; + "vec3 refl_value = vec3(0.0);\n" + "vec3 spot_dir = vec3(0.0);\n;"; // Compute fragment normals if (lighting.bump_mode == LightingRegs::LightingBumpMode::NormalMap) { @@ -569,6 +570,10 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) { index = std::string("dot(light_vector, normal)"); break; + case LightingRegs::LightingLutInput::SP: + index = std::string("dot(light_vector, spot_dir)"); + break; + default: LOG_CRITICAL(HW_GPU, "Unknown lighting LUT input %d\n", (int)input); UNIMPLEMENTED(); @@ -605,21 +610,34 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) { else out += "light_vector = normalize(" + light_src + ".position + view);\n"; + out += "spot_dir = " + light_src + ".spot_direction;\n"; + // Compute dot product of light_vector and normal, adjust if lighting is one-sided or // two-sided std::string dot_product = light_config.two_sided_diffuse ? "abs(dot(light_vector, normal))" : "max(dot(light_vector, normal), 0.0)"; + // If enabled, compute spot light attenuation value + std::string spot_atten = "1.0"; + if (light_config.spot_atten_enable && + LightingRegs::IsLightingSamplerSupported( + lighting.config, LightingRegs::LightingSampler::SpotlightAttenuation)) { + std::string index = + GetLutIndex(light_config.num, lighting.lut_sp.type, lighting.lut_sp.abs_input); + auto sampler = LightingRegs::SpotlightAttenuationSampler(light_config.num); + spot_atten = "(" + std::to_string(lighting.lut_sp.scale) + " * " + + GetLutValue(sampler, index) + ")"; + } + // If enabled, compute distance attenuation value std::string dist_atten = "1.0"; if (light_config.dist_atten_enable) { std::string index = "(" + light_src + ".dist_atten_scale * length(-view - " + light_src + ".position) + " + light_src + ".dist_atten_bias)"; index = "(OFFSET_256 + SCALE_256 * clamp(" + index + ", 0.0, 1.0))"; - const unsigned lut_num = - ((unsigned)LightingRegs::LightingSampler::DistanceAttenuation + light_config.num); - dist_atten = GetLutValue((LightingRegs::LightingSampler)lut_num, index); + auto sampler = LightingRegs::DistanceAttenuationSampler(light_config.num); + dist_atten = GetLutValue(sampler, index); } // If enabled, clamp specular component if lighting result is negative @@ -720,11 +738,11 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) { // Compute primary fragment color (diffuse lighting) function out += "diffuse_sum.rgb += ((" + light_src + ".diffuse * " + dot_product + ") + " + - light_src + ".ambient) * " + dist_atten + ";\n"; + light_src + ".ambient) * " + dist_atten + " * " + spot_atten + ";\n"; // Compute secondary fragment color (specular lighting) function out += "specular_sum.rgb += (" + specular_0 + " + " + specular_1 + ") * " + - clamp_highlights + " * " + dist_atten + ";\n"; + clamp_highlights + " * " + dist_atten + " * " + spot_atten + ";\n"; } // Sum final lighting result |