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Raytracing backend now supports multiple worlds.

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This commit is contained in:
Justin Marshall
2026-04-22 23:23:49 -07:00
parent a678dda40e
commit ef5b5f107d
18 changed files with 961 additions and 485 deletions
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neo/opengl/opengl.h
+46 -13
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@@ -275,6 +275,15 @@ typedef char GLchar;
#define GL_TRUE 1
#endif
#ifndef GL_RAYTRACING_MAX_RENDER_WORLDS
#define GL_RAYTRACING_MAX_RENDER_WORLDS 24
#endif
#ifndef GL_RAYTRACING_SCENE_HANDLE_T_DEFINED
typedef uint32_t glRaytracingSceneHandle_t;
#define GL_RAYTRACING_SCENE_HANDLE_T_DEFINED
#endif
#ifndef GL_ARRAY_BUFFER
#define GL_ARRAY_BUFFER 0x8892
#endif
@@ -1540,8 +1549,6 @@ enum GeometryFlag_t
void APIENTRY glGeometryFlagf(GLfloat flag);
void glUpdateBottomAccelStructure(bool opaque, uint32_t& meshHandle);
void glUpdateTopLevelAceelStructure(uint32_t mesh, float* transform, uint32_t& topLevelHandle);
#endif
struct GLVertex
@@ -1669,8 +1676,6 @@ typedef struct glRaytracingLightingPassDesc_s
ID3D12Resource* outputTexture;
DXGI_FORMAT outputFormat;
ID3D12Resource* topLevelAS;
uint32_t width;
uint32_t height;
} glRaytracingLightingPassDesc_t;
@@ -1679,21 +1684,41 @@ int glRaytracingInit(void);
void glRaytracingShutdown(void);
void glRaytracingClear(void);
// Render-world / TLAS APIs.
// A render world owns its own instance list and TLAS. Meshes and BLAS resources
// remain shared globally. Valid scene handles are returned by glRaytracingCreateScene()
// and are in the range 1..GL_RAYTRACING_MAX_RENDER_WORLDS.
glRaytracingSceneHandle_t glRaytracingCreateScene(void);
void glRaytracingClearScene(glRaytracingSceneHandle_t sceneHandle);
void glRaytracingDeleteScene(glRaytracingSceneHandle_t sceneHandle);
uint32_t glRaytracingGetSceneCount(void);
glRaytracingMeshHandle_t glRaytracingCreateMesh(const glRaytracingMeshDesc_t* desc);
int glRaytracingUpdateMesh(glRaytracingMeshHandle_t meshHandle, const glRaytracingMeshDesc_t* desc);
void glRaytracingDeleteMesh(glRaytracingMeshHandle_t meshHandle);
glRaytracingInstanceHandle_t glRaytracingCreateInstance(const glRaytracingInstanceDesc_t* desc);
int glRaytracingUpdateInstance(glRaytracingInstanceHandle_t instanceHandle, const glRaytracingInstanceDesc_t* desc);
void glRaytracingDeleteInstance(glRaytracingInstanceHandle_t instanceHandle);
// Scene-specific instance APIs for multiple render worlds.
glRaytracingInstanceHandle_t glRaytracingCreateInstanceInScene(
glRaytracingSceneHandle_t sceneHandle,
const glRaytracingInstanceDesc_t* desc);
int glRaytracingUpdateInstanceInScene(
glRaytracingSceneHandle_t sceneHandle,
glRaytracingInstanceHandle_t instanceHandle,
const glRaytracingInstanceDesc_t* desc);
void glRaytracingDeleteInstanceInScene(
glRaytracingSceneHandle_t sceneHandle,
glRaytracingInstanceHandle_t instanceHandle);
int glRaytracingBuildMesh(glRaytracingMeshHandle_t meshHandle);
int glRaytracingBuildAllMeshes(void);
int glRaytracingBuildScene(void);
int glRaytracingBuildSceneIfDirty(void);
int glRaytracingBuildSceneForHandle(glRaytracingSceneHandle_t sceneHandle);
ID3D12Resource* glRaytracingGetTopLevelASForScene(glRaytracingSceneHandle_t sceneHandle);
uint32_t glRaytracingGetMeshCount(void);
uint32_t glRaytracingGetInstanceCount(void);
uint32_t glRaytracingGetInstanceCountForScene(glRaytracingSceneHandle_t sceneHandle);
bool glRaytracingLightingInit(void);
void glRaytracingLightingShutdown(void);
@@ -1711,7 +1736,9 @@ void glRaytracingLightingEnableSpecular(int enable);
void glRaytracingLightingEnableHalfLambert(int enable);
void glRaytracingLightingSetShadowBias(float bias);
bool glRaytracingLightingExecute(const glRaytracingLightingPassDesc_t* pass);
bool glRaytracingLightingExecuteForScene(
const glRaytracingLightingPassDesc_t* pass,
glRaytracingSceneHandle_t sceneHandle);
glRaytracingLight_t glRaytracingLightingMakePointLight(
float px, float py, float pz,
@@ -1732,7 +1759,7 @@ glRaytracingLight_t glRaytracingLightingMakeRectLight(
uint32_t glRaytracingLightingGetLightCount(void);
void glLightScene(void);
void glLightScene(glRaytracingSceneHandle_t sceneHandle);
ID3D12Device* QD3D12_GetDevice(void);
ID3D12CommandQueue* QD3D12_GetQueue(void);
@@ -2133,4 +2160,10 @@ void APIENTRY glTextureNormalMap(GLuint texture, GLboolean isNormalMap); // alia
void APIENTRY glBindNormalMapTexture(GLuint texture); // 0 disables explicit normal map
void APIENTRY glNormalMapTexture(GLuint texture); // alias
void APIENTRY glNormalMapStrengthf(GLfloat strength); // default 1.0
void APIENTRY glNormalMapYSignf(GLfloat sign); // default +1, pass -1 to flip green/Y
void APIENTRY glNormalMapYSignf(GLfloat sign); // default +1, pass -1 to flip green/Y
void glUpdateTopLevelAceelStructure(
glRaytracingSceneHandle_t scene,
uint32_t mesh,
float* transform,
uint32_t& topLevelHandle);