add emission gbuffer attachment

res/shaders/effect.glslf

@@ -4,6 +4,7 @@ out vec4 f_color;
 uniform sampler2D u_screen;
 uniform sampler2D u_position;
 uniform sampler2D u_normal;
+uniform sampler2D u_emission;
 uniform sampler2D u_noise;
 uniform sampler2D u_ssao;
 uniform samplerCube u_skybox;

res/shaders/effects/deferred_lighting.glsl

@@ -16,7 +16,7 @@ vec4 effect() {
     vec3 normal = transpose(mat3(u_view)) * texture(u_normal, v_uv).xyz;
     vec3 dir = modelpos.xyz - u_cameraPos;
 #ifdef ENABLE_SHADOWS
-    ssao *= calc_shadow(modelpos, normal, length(pos));
+    ssao *= max(calc_shadow(modelpos, normal, length(pos)), texture(u_emission, v_uv).r);
 #endif
     vec3 fogColor = texture(u_skybox, dir).rgb;
     float fog = calc_fog(length(u_view * vec4((modelpos.xyz - u_cameraPos) * FOG_POS_SCALE, 0.0)) / 256.0);

res/shaders/effects/ssao.glsl

@@ -29,6 +29,7 @@ vec4 effect() {
         occlusion += (sampleDepth >= samplePos.z + u_bias ? 1.0 : 0.0) * rangeCheck;
     }
     occlusion = min(1.0, 1.05 - (occlusion / u_kernelSize));
+    occlusion = max(occlusion, texture(u_emission, v_uv).r);
 
     float z = -position.z * 0.01;
     z = max(0.0, 1.0 - z);

res/shaders/entity.glslf

@@ -1,6 +1,7 @@
 layout (location = 0) out vec4 f_color;
 layout (location = 1) out vec4 f_position;
 layout (location = 2) out vec4 f_normal;
+layout (location = 3) out vec4 f_emission;
 
 in float a_distance;
 in float a_fog;
@@ -40,4 +41,5 @@ void main() {
     f_color.a = alpha;
     f_position = vec4(a_position, 1.0);
     f_normal = vec4(a_normal, 1.0);
+    f_emission = vec4(0.0);
 }

res/shaders/main.glslf

@@ -1,6 +1,7 @@
 layout (location = 0) out vec4 f_color;
 layout (location = 1) out vec4 f_position;
 layout (location = 2) out vec4 f_normal;
+layout (location = 3) out vec4 f_emission;
 
 in float a_distance;
 in float a_fog;
@@ -12,6 +13,7 @@ in vec3 a_realnormal;
 in vec3 a_skyLight;
 in vec4 a_modelpos;
 in vec4 a_torchLight;
+in float a_emission;
 
 uniform sampler2D u_texture0;
 uniform samplerCube u_skybox;
@@ -47,8 +49,8 @@ void main() {
     vec3 fogColor = texture(u_skybox, a_dir).rgb;
     f_color = mix(f_color, vec4(fogColor, 1.0), a_fog);
 #endif
-
     f_color.a = alpha;
     f_position = vec4(a_position, 1.0);
     f_normal = vec4(a_normal, 1.0);
+    f_emission = vec4(a_emission);
 }

res/shaders/main.glslv

@@ -15,6 +15,7 @@ out vec3 a_realnormal;
 out vec4 a_torchLight;
 out vec3 a_skyLight;
 out vec4 a_modelpos;
+out float a_emission;
 
 uniform mat4 u_model;
 uniform mat4 u_proj;
@@ -51,6 +52,7 @@ void main() {
     mat4 viewmodel = u_view * u_model;
     a_distance = length(viewmodel * vec4(pos3d, 0.0));
     a_fog = calc_fog(length(viewmodel * vec4(pos3d * FOG_POS_SCALE, 0.0)) / 256.0);
+    a_emission = v_normal.w;
 
     vec4 viewmodelpos = u_view * a_modelpos;
     a_position = viewmodelpos.xyz;