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-rw-r--r--src/video_core/renderer_opengl/gl_rasterizer.cpp45
-rw-r--r--src/video_core/renderer_opengl/gl_rasterizer.h6
-rw-r--r--src/video_core/renderer_opengl/gl_shader_gen.cpp39
-rw-r--r--src/video_core/renderer_opengl/gl_shader_gen.h3
4 files changed, 85 insertions, 8 deletions
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index aa9b831dd..57d5e8253 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -735,6 +735,40 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
SyncLightPosition(7);
break;
+ // Fragment spot lighting direction
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[0].spot_x, 0x146 + 0 * 0x10):
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[0].spot_z, 0x147 + 0 * 0x10):
+ SyncLightSpotDirection(0);
+ break;
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[1].spot_x, 0x146 + 1 * 0x10):
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[1].spot_z, 0x147 + 1 * 0x10):
+ SyncLightSpotDirection(1);
+ break;
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[2].spot_x, 0x146 + 2 * 0x10):
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[2].spot_z, 0x147 + 2 * 0x10):
+ SyncLightSpotDirection(2);
+ break;
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[3].spot_x, 0x146 + 3 * 0x10):
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[3].spot_z, 0x147 + 3 * 0x10):
+ SyncLightSpotDirection(3);
+ break;
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[4].spot_x, 0x146 + 4 * 0x10):
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[4].spot_z, 0x147 + 4 * 0x10):
+ SyncLightSpotDirection(4);
+ break;
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[5].spot_x, 0x146 + 5 * 0x10):
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[5].spot_z, 0x147 + 5 * 0x10):
+ SyncLightSpotDirection(5);
+ break;
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[6].spot_x, 0x146 + 6 * 0x10):
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[6].spot_z, 0x147 + 6 * 0x10):
+ SyncLightSpotDirection(6);
+ break;
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[7].spot_x, 0x146 + 7 * 0x10):
+ case PICA_REG_INDEX_WORKAROUND(lighting.light[7].spot_z, 0x147 + 7 * 0x10):
+ SyncLightSpotDirection(7);
+ break;
+
// Fragment lighting light source config
case PICA_REG_INDEX_WORKAROUND(lighting.light[0].config, 0x149 + 0 * 0x10):
case PICA_REG_INDEX_WORKAROUND(lighting.light[1].config, 0x149 + 1 * 0x10):
@@ -1595,6 +1629,17 @@ void RasterizerOpenGL::SyncLightPosition(int light_index) {
}
}
+void RasterizerOpenGL::SyncLightSpotDirection(int light_index) {
+ const auto& light = Pica::g_state.regs.lighting.light[light_index];
+ GLvec3 spot_direction = {light.spot_x / 2047.0f, light.spot_y / 2047.0f,
+ light.spot_z / 2047.0f};
+
+ if (spot_direction != uniform_block_data.data.light_src[light_index].spot_direction) {
+ uniform_block_data.data.light_src[light_index].spot_direction = spot_direction;
+ uniform_block_data.dirty = true;
+ }
+}
+
void RasterizerOpenGL::SyncLightDistanceAttenuationBias(int light_index) {
GLfloat dist_atten_bias =
Pica::float20::FromRaw(Pica::g_state.regs.lighting.light[light_index].dist_atten_bias)
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.h b/src/video_core/renderer_opengl/gl_rasterizer.h
index a9ad7d660..d9a3e9d1c 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.h
+++ b/src/video_core/renderer_opengl/gl_rasterizer.h
@@ -125,6 +125,7 @@ private:
alignas(16) GLvec3 diffuse;
alignas(16) GLvec3 ambient;
alignas(16) GLvec3 position;
+ alignas(16) GLvec3 spot_direction; // negated
GLfloat dist_atten_bias;
GLfloat dist_atten_scale;
};
@@ -153,7 +154,7 @@ private:
};
static_assert(
- sizeof(UniformData) == 0x3E0,
+ sizeof(UniformData) == 0x460,
"The size of the UniformData structure has changed, update the structure in the shader");
static_assert(sizeof(UniformData) < 16384,
"UniformData structure must be less than 16kb as per the OpenGL spec");
@@ -241,6 +242,9 @@ private:
/// Syncs the specified light's position to match the PICA register
void SyncLightPosition(int light_index);
+ /// Syncs the specified spot light direcition to match the PICA register
+ void SyncLightSpotDirection(int light_index);
+
/// Syncs the specified light's distance attenuation bias to match the PICA register
void SyncLightDistanceAttenuationBias(int light_index);
diff --git a/src/video_core/renderer_opengl/gl_shader_gen.cpp b/src/video_core/renderer_opengl/gl_shader_gen.cpp
index ffe419863..db53710aa 100644
--- a/src/video_core/renderer_opengl/gl_shader_gen.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_gen.cpp
@@ -75,6 +75,8 @@ PicaShaderConfig PicaShaderConfig::BuildFromRegs(const Pica::Regs& regs) {
state.lighting.light[light_index].two_sided_diffuse = light.config.two_sided_diffuse != 0;
state.lighting.light[light_index].dist_atten_enable =
!regs.lighting.IsDistAttenDisabled(num);
+ state.lighting.light[light_index].spot_atten_enable =
+ !regs.lighting.IsSpotAttenDisabled(num);
}
state.lighting.lut_d0.enable = regs.lighting.config1.disable_lut_d0 == 0;
@@ -87,6 +89,12 @@ PicaShaderConfig PicaShaderConfig::BuildFromRegs(const Pica::Regs& regs) {
state.lighting.lut_d1.type = regs.lighting.lut_input.d1.Value();
state.lighting.lut_d1.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.d1);
+ // this is a dummy field due to lack of the corresponding register
+ state.lighting.lut_sp.enable = true;
+ state.lighting.lut_sp.abs_input = regs.lighting.abs_lut_input.disable_sp == 0;
+ state.lighting.lut_sp.type = regs.lighting.lut_input.sp.Value();
+ state.lighting.lut_sp.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.sp);
+
state.lighting.lut_fr.enable = regs.lighting.config1.disable_lut_fr == 0;
state.lighting.lut_fr.abs_input = regs.lighting.abs_lut_input.disable_fr == 0;
state.lighting.lut_fr.type = regs.lighting.lut_input.fr.Value();
@@ -509,7 +517,8 @@ 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) {
@@ -560,6 +569,10 @@ 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();
@@ -596,21 +609,34 @@ 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
@@ -711,11 +737,11 @@ 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
@@ -967,6 +993,7 @@ struct LightSrc {
vec3 diffuse;
vec3 ambient;
vec3 position;
+ vec3 spot_direction;
float dist_atten_bias;
float dist_atten_scale;
};
diff --git a/src/video_core/renderer_opengl/gl_shader_gen.h b/src/video_core/renderer_opengl/gl_shader_gen.h
index ea6d216d1..9c90eadf9 100644
--- a/src/video_core/renderer_opengl/gl_shader_gen.h
+++ b/src/video_core/renderer_opengl/gl_shader_gen.h
@@ -93,6 +93,7 @@ union PicaShaderConfig {
bool directional;
bool two_sided_diffuse;
bool dist_atten_enable;
+ bool spot_atten_enable;
} light[8];
bool enable;
@@ -110,7 +111,7 @@ union PicaShaderConfig {
bool abs_input;
Pica::LightingRegs::LightingLutInput type;
float scale;
- } lut_d0, lut_d1, lut_fr, lut_rr, lut_rg, lut_rb;
+ } lut_d0, lut_d1, lut_sp, lut_fr, lut_rr, lut_rg, lut_rb;
} lighting;
struct {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 20:43:20 +0100