Bloom pass.

Assets/bloom_material.json

@@ -0,0 +1,16 @@
+{
+    "material_resources": [
+        {
+            "contexts": [
+                {
+                    "bind_constants": [],
+                    "bind_textures": [
+					],
+                    "id": "bloom_pass"
+                }
+            ],
+            "id": "bloom_material",
+            "shader": "bloom_pass/bloom_pass"
+        }
+    ]
+}

raw/bloom_pass/bloom_pass.frag.glsl

@@ -0,0 +1,22 @@
+#version 450
+
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+uniform sampler2D tex;
+
+in vec2 texCoord;
+
+void main() {
+	vec4 col = texture(tex, texCoord);
+	
+	float brightness = dot(col.rgb, vec3(0.2126, 0.7152, 0.0722));
+	if (brightness > 0.99) {
+		gl_FragColor = vec4(col.rgb, 1.0);
+		return;
+	}
+	
+	gl_FragColor = vec4(0.0);
+	// gl_FragColor = col;
+}

raw/bloom_pass/bloom_pass.shader.json

@@ -0,0 +1,33 @@
+{
+	"contexts": [
+		{
+			"id": "bloom_pass",
+			"params": [
+				{
+					"id": "depth_write",
+					"value": "true"
+				},
+				{
+					"id": "compare_mode",
+					"value": "always"
+				},
+				{
+					"id": "cull_mode",
+					"value": "none"
+				},
+				{
+					"id": "blend_source",
+					"value": "blend_one"
+				},
+				{
+					"id": "blend_destination",
+					"value": "blend_zero"
+				}
+			],
+			"links": [],
+			"texture_params": [],
+			"vertex_shader": "bloom_pass.vert.glsl",
+			"fragment_shader": "bloom_pass.frag.glsl"
+		}
+	]
+}

raw/bloom_pass/bloom_pass.vert.glsl

@@ -0,0 +1,18 @@
+#version 450
+
+#ifdef GL_ES
+precision highp float;
+#endif
+
+in vec2 pos;
+
+out vec2 texCoord;
+
+const vec2 madd = vec2(0.5, 0.5);
+
+void main() {
+  // Scale vertex attribute to [0-1] range
+  texCoord = pos.xy * madd + madd;
+
+  gl_Position = vec4(pos.xy, 0.0, 1.0);
+}

raw/blur_pass/blur_pass.frag.glsl

@@ -9,9 +9,26 @@ uniform vec2 dir;
 
 in vec2 texCoord;
 
+const float weight[5] = float[] (0.227027, 0.1945946, 0.1216216, 0.054054, 0.016216);
+
 void main() {
 	vec2 step = dir / vec2(400, 300);
+	// vec2 step = dir / vec2(800, 600);
 	
+	vec3 result = texture(tex, texCoord).rgb * weight[0];
+	
+	result += texture(tex, texCoord + step * 1).rgb * weight[1];
+	result += texture(tex, texCoord - step * 1).rgb * weight[1];
+	result += texture(tex, texCoord + step * 2).rgb * weight[2];
+	result += texture(tex, texCoord - step * 2).rgb * weight[2];
+	result += texture(tex, texCoord + step * 3).rgb * weight[3];
+	result += texture(tex, texCoord - step * 3).rgb * weight[3];
+	result += texture(tex, texCoord + step * 4).rgb * weight[4];
+	result += texture(tex, texCoord - step * 4).rgb * weight[4];
+
+	gl_FragColor = vec4(vec3(result), 1.0);
+	
+	/*
 	float res = texture( tex, texCoord + (step * 4.0) ).r;
 	res += texture( tex, texCoord + (step * 3.0) ).r;
 	res += texture( tex, texCoord + (step * 2.0) ).r;
@@ -23,6 +40,6 @@ void main() {
 	res += texture( tex, texCoord -(step * 4.0) ).r;
 	res /= 9.0;
 	
-	gl_FragColor = vec4(vec3(res), 1.0);
+	gl_FragColor = vec4(vec3(res), 1.0);*/
 	// gl_FragColor = texture(tex, texCoord);
 }

raw/combine_pass/combine_pass.frag.glsl

@@ -4,16 +4,28 @@
 precision mediump float;
 #endif
 
-uniform sampler2D lightmap;
-uniform sampler2D aomap;
+uniform sampler2D tex;
+uniform sampler2D tex2;
 
 in vec2 texCoord;
 
+const float exposure = 1.0;
+const float gamma = 2.2;
+
 void main() {
-	vec3 lcol = texture(lightmap, texCoord).rgb;
-	vec3 aocol = texture(aomap, texCoord).rgb;
+	vec3 col = texture(tex, texCoord).rgb;
+	vec3 col2 = texture(tex2, texCoord).rgb;
 	
-	gl_FragColor = vec4(lcol * aocol, 1.0);
-	// gl_FragColor = vec4(aocol, 1.0);
-	// gl_FragColor = vec4(lcol, 1.0);
+	// // Additive blending
+    col += col2;
+	
+    // // Tone mapping
+    // vec3 result = vec3(1.0) - exp(-col * exposure);
+    
+	// // Gamma correction
+    // result = pow(result, vec3(1.0 / gamma));
+    // gl_FragColor = vec4(result, 1.0f);
+	
+	
+	gl_FragColor = vec4(col, 1.0);
 }

raw/compile.py

@@ -43,13 +43,17 @@ os.chdir('../dof_pass')
 make_resources.make('dof_pass.shader.json')
 make_variants.make('dof_pass.shader.json')
 
-os.chdir('../ssr_pass')
-make_resources.make('ssr_pass.shader.json')
-make_variants.make('ssr_pass.shader.json')
+os.chdir('../bloom_pass')
+make_resources.make('bloom_pass.shader.json')
+make_variants.make('bloom_pass.shader.json')
 
-# os.chdir('../combine_pass')
-# make_resources.make('combine_pass.shader.json')
-# make_variants.make('combine_pass.shader.json')
+# os.chdir('../ssr_pass')
+# make_resources.make('ssr_pass.shader.json')
+# make_variants.make('ssr_pass.shader.json')
+
+os.chdir('../combine_pass')
+make_resources.make('combine_pass.shader.json')
+make_variants.make('combine_pass.shader.json')
 
 # os.chdir('../pt_trace_pass')
 # make_resources.make('pt_trace_pass.shader.json')