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HelloVulkan/shaders/env/skybox.frag
T
atdunbg f73e52926f Reorganize directory layout: editor panels/, grouped shaders, drop stale header
- App/editor: move 7 panels into panels/ (Editor core stays at root)
- shaders/: group into pbr/ post/ debug/ env/ (runtime load paths updated)
- Delete outdated duplicate Engine/src/Renderer/VulkanAssetUploader.h
2026-10-07 09:52:17 +08:00

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#version 450
// 天空盒像素:NDC → 世界方向 → cube 采样。
// invVP = inverse(projNoJitter × mat4(mat3(view))):去掉平移的视图,
// 反投影结果即"相机相对"的世界方向,normalize 后直接采样 cube。
layout(location = 0) in vec2 fragUV;
layout(location = 0) out vec4 outColor;
layout(set = 0, binding = 0) uniform samplerCube envMap;
// push 与 skybox.vert 一致声明(VUID-08878)
layout(push_constant) uniform PushConstants {
mat4 invVP;
} pc;
void main() {
vec4 target = pc.invVP * vec4(fragUV * 2.0 - 1.0, 1.0, 1.0);
vec3 dir = normalize(target.xyz / target.w);
outColor = vec4(texture(envMap, dir).rgb, 1.0);
}