now using deferred rendering instead of forward rendering; some little problem: grid not render, shadow not impl

Editor/assets/shaders/SceneComposite.glsl

@@ -17,13 +17,11 @@ void main()
 #version 430
 
 layout(location = 0) out vec4 o_Color;
-layout(location = 1) out vec4 o_BloomTexture;
 
 in vec2 v_TexCoord;
 
-uniform sampler2DMS u_Texture;
-uniform sampler2D u_BloomTexture;
-
+uniform sampler2D u_HDRTexture;      // 来自 LightingPass 的 HDR 颜色
+uniform sampler2D u_BloomTexture;    // 来自 BloomBlendPass 的 Bloom 纹理
 
 uniform bool u_EnableAutoExposure;
 uniform float u_ManualExposure;
@@ -32,73 +30,36 @@ layout(std430, binding = 2) buffer Exposure
 	float u_Exposure;
 };
 
-uniform int u_TextureSamples;
-
 uniform bool u_EnableBloom;
-uniform float u_BloomThreshold;
 
-const float uFar = 1.0;
-
-vec4 SampleTexture(sampler2D tex, vec2 texCoord)
-{
-	return texture(tex, texCoord);
-}
-
-vec4 MultiSampleTexture(sampler2DMS tex, vec2 tc)
-{
-	ivec2 texSize = textureSize(tex);
-	ivec2 texCoord = ivec2(tc * texSize);
-	vec4 result = vec4(0.0);
-	for (int i = 0; i < u_TextureSamples; i++)
-	result += texelFetch(tex, texCoord, i);
-
-	result /= float(u_TextureSamples);
-	return result;
-}
-
-float MultiSampleDepth(sampler2DMS tex, vec2 tc)
-{
-	ivec2 texSize = textureSize(tex);
-	ivec2 texCoord = ivec2(tc * texSize);
-	float result = 0.0;
-	for (int i = 0; i < u_TextureSamples; i++)
-		result += texelFetch(tex, texCoord, i).r;
-	result /= float(u_TextureSamples);
-	return result;
-}
+const float gamma = 2.2;
+const float pureWhite = 1.0;
 
 void main()
 {
-	const float gamma     = 2.2;
-	const float pureWhite = 1.0;
-
-	// Tonemapping
-	vec4 msColor = MultiSampleTexture(u_Texture, v_TexCoord);
-	vec3 color = msColor.rgb;
+	// 采样 HDR 颜色（单样本）
+	vec3 color = texture(u_HDRTexture, v_TexCoord).rgb;
 
+	// 混合 Bloom（如果启用）
 	if (u_EnableBloom)
 	{
 		vec3 bloomColor = texture(u_BloomTexture, v_TexCoord).rgb;
-		color += bloomColor;
+		color += bloomColor;   // 在 HDR 空间混合
 	}
 
-	if(u_EnableAutoExposure)
-		color *= u_Exposure;
+	// 应用曝光
+	if (u_EnableAutoExposure)
+	color *= u_Exposure;
 	else
-		color *= u_ManualExposure;
+	color *= u_ManualExposure;
 
-	// Reinhard tonemapping operator.
-	// see: "Photographic Tone Reproduction for Digital Images", eq. 4
+	// Reinhard 色调映射
 	float luminance = dot(color, vec3(0.2126, 0.7152, 0.0722));
 	float mappedLuminance = (luminance * (1.0 + luminance / (pureWhite * pureWhite))) / (1.0 + luminance);
 
-	// Scale color by ratio of average luminances.
+	// 按亮度比例缩放颜色
 	vec3 mappedColor = (mappedLuminance / luminance) * color;
 
-	// Gamma correction.
+	// Gamma 校正
 	o_Color = vec4(pow(mappedColor, vec3(1.0 / gamma)), 1.0);
-
-	// Show over-exposed areas
-	// if (o_Color.r > 1.0 || o_Color.g > 1.0 || o_Color.b > 1.0)
-	// 	o_Color.rgb *= vec3(1.0, 0.25, 0.25);
-}
+}