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山西有哪些做网站的公司,wordpress网站首页,网站上做旅游卖家要学什么条件,中国企业500强第一名是谁静态物体GPU Instancing与光照贴图‌技术要点‌#xff1a;‌静态标记‌#xff1a;物体需标记为Batching Static#xff0c;但需禁用静态合批以避免与GPU Instancing冲突。‌光照贴图绑定‌#xff1a;通过LightmapIndex和LightmapScaleOffset手动绑定烘焙结果。‌Shader适…静态物体GPU Instancing与光照贴图‌技术要点‌‌静态标记‌物体需标记为Batching Static但需禁用静态合批以避免与GPU Instancing冲突。‌光照贴图绑定‌通过LightmapIndex和LightmapScaleOffset手动绑定烘焙结果。‌Shader适配‌需在着色器中添加实例化支持与光照贴图采样逻辑。‌示例代码‌StaticInstancingExample.csusing UnityEngine;[ExecuteAlways]public class StaticInstancingExample : MonoBehaviour {public Mesh mesh;public Material material;public int instanceCount 100;private Matrix4x4[] matrices;private Vector4[] lightmapOffsets;void Start() {// 生成实例变换矩阵matrices new Matrix4x4[instanceCount];lightmapOffsets new Vector4[instanceCount];for (int i 0; i instanceCount; i) {Vector3 pos Random.insideUnitSphere * 10f;matrices[i] Matrix4x4.TRS(pos, Quaternion.identity, Vector3.one);// 模拟不同光照贴图偏移需与烘焙数据匹配lightmapOffsets[i] new Vector4(1, 1, i % 2 * 0.5f, i / 2 * 0.5f);}}void Update() {MaterialPropertyBlock props new MaterialPropertyBlock();props.SetVectorArray(_LightmapST, lightmapOffsets); // 传递光照贴图UV偏移Graphics.DrawMeshInstanced(mesh, 0, material, matrices, instanceCount, props);}}‌实现说明‌使用MaterialPropertyBlock传递每实例的光照贴图UV偏移参数。着色器中需声明UNITY_LIGHTMAP_ON宏并采样unity_Lightmap纹理。动态物体GPU Instancing与光照探针‌技术要点‌‌光照探针替代‌动态物体依赖Light Probes获取间接光照。‌混合光源支持‌光源设为Mixed模式静态阴影烘焙到光照贴图动态物体接收实时阴影。‌实例化属性扩展‌通过MaterialPropertyBlock传递探针数据。‌示例代码‌DynamicInstancingExample.csusing UnityEngine;public class DynamicInstancingExample : MonoBehaviour {public Mesh mesh;public Material material;public int instanceCount 100;private Matrix4x4[] matrices;void Start() {matrices new Matrix4x4[instanceCount];for (int i 0; i instanceCount; i) {Vector3 pos Random.insideUnitSphere * 10f;matrices[i] Matrix4x4.TRS(pos, Quaternion.identity, Vector3.one);}}void Update() {MaterialPropertyBlock props new MaterialPropertyBlock();// 为每个实例设置光照探针数据LightProbes.GetInterpolatedProbe(transform.position, null, out var probe);props.AddVector(_LightProbeData, new Vector4(probe.occlusion, 0, 0, 0));Graphics.DrawMeshInstanced(mesh, 0, material, matrices, instanceCount, props);}}‌实现说明‌通过LightProbes.GetInterpolatedProbe获取动态物体的光照探针数据。着色器中需使用SHADERGRAPH_BAKED_LIGHT_PROBES宏处理探针数据。Shader适配关键代码URP Shader Graph‌静态光照贴图采样‌在Shader Graph中添加Lightmap节点并通过Custom Function节点接入实例化的UV偏移参数。‌动态探针支持‌添加Baked Light Probes节点并与实例化属性_LightProbeData关联。‌优先级注意‌若同时启用SRP Batcher需确保材质兼容性禁用MaterialPropertyBlock