Misaki/SimpleRayTracing
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Add HDR files and improve light handling

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Added three binary files: `golden_gate_hills_1k.hdr`, `rogland_sunset_1k.hdr`, and `studio_small_03_1k.hdr`.
Added a new inline function `weight_nee_light` in `BSDF.h` to compute the weighted contribution of light based on the next event estimation (NEE).
Added a new function pointer type `sky_free_f` in `Light.h` for freeing sky light data.
Added a new structure `hdr_sky_data_t` in `SkyLight.h` to hold HDR sky data, including texture and intensity.
Changed the `RAY_EPSILON` definition in `Common.h` to a new value.
Changed the `light_collection_free` function in `Light.h` to include freeing sky light data if it exists.
Changed the `sky_create_hdr_sky` function in `SkyLight.h` to initialize HDR sky data and compute marginal and conditional distributions.
Changed the `texture_load` function in `Texture.h` to accept a `stride` parameter for different texture formats.
Changed the `evaluate_bsdf_directional` function in `LightEvaluation.c` to handle light intensity checks.
Changed the `evaluate_bsdf_const_sky` function in `SkyLight.c` to use a pointer for sky data and added checks for intensity.
Removed TODO comments related to handling triangle and material removal in `Triangle.h` and `Light.h`.
Removed the old `weight_sky_light` function in `SkyLight.h` and replaced it with the new `weight_nee_light` function.
Updated the `scene_setup` function in `main.c` to change camera position and light direction, and to load HDR textures.
Increased the sample count in the rendering configuration in `main.c` for better quality rendering.
This commit is contained in:
Misaki
2025-05-02 01:25:56 +09:00
parent 0061609267
commit 9a1069db90
18 changed files with 378 additions and 82 deletions
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12
header/Rendering/Texture.h
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@@ -20,6 +20,13 @@ typedef enum
LINEAR,
} filter_mode_t;
typedef enum
{
UINT_8 = 1,
UINT_16 = 2,
FLOAT_32 = 4,
} stride_t;
typedef struct
{
uint32_t width;
@@ -27,7 +34,8 @@ typedef struct
wrap_mode_t wrap_mode;
filter_mode_t filter_mode;
uint8_t channel_count;
uint8_t* data;
stride_t stride;
char* data;
} texture_t;
typedef struct
@@ -52,7 +60,7 @@ bool texture_collection_init(uint16_t size, texture_collection_t* textures);
void texture_collection_resize(texture_collection_t* textures, uint16_t size);
void texture_collection_free(texture_collection_t* textures);
texture_entity_t texture_load(const char* filename, bool srgb, texture_collection_t* textures);
texture_entity_t texture_load(const char* filename, bool srgb, stride_t stride, texture_collection_t* textures);
vec4s texture_sample(const texture_t* texture, float u, float v);
void texture_free(texture_t* texture);