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use ray index for noise layer

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jacob 2025-07-19 18:23:36 -05:00
parent 9344c2c632
commit 5db37a9486
1 changed files with 8 additions and 13 deletions
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21
res/sh/shade.hlsl
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@ -25,11 +25,11 @@ struct cs_input {
* Lighting * Lighting
* ========================== */ * ========================== */
#define SAMPLES 4 #define SAMPLES 2
#define MARCHES 16 #define MARCHES 16
#define AMBIENT float4(0, 0, 0, 0) #define AMBIENT float4(0, 0, 0, 0)
float rand_float_from_float2(float2 pos) { float rand_angle(uint2 pos, uint ray_index) {
Texture3D<uint> noise_tex = g_noise_textures[SH_BLUE_NOISE_TEX_ID]; Texture3D<uint> noise_tex = g_noise_textures[SH_BLUE_NOISE_TEX_ID];
// pos += uint2(g_constants.frame_seed.x % g_constants.tex_width, g_constants.frame_seed.x % g_constants.tex_height); // pos += uint2(g_constants.frame_seed.x % g_constants.tex_width, g_constants.frame_seed.x % g_constants.tex_height);
@ -37,15 +37,15 @@ float rand_float_from_float2(float2 pos) {
// pos -= g_constants.camera_offset; // pos -= g_constants.camera_offset;
uint3 noise_coord = uint3(pos.xy, 0); uint3 noise_coord = uint3(pos.xy, 0);
// noise_coord.xy += g_constants.frame_seed.xy; // noise_coord.xy *= g_constants.frame_seed.xy;
noise_coord.z += ray_index;
// noise_coord.z += ray_index * noise_coord.x ;
// noise_coord.z += g_constants.frame_seed.x;
// noise_coord.z += g_constants.frame_index; // noise_coord.z += g_constants.frame_index;
// noise_coord.z += g_constants.frame_index;
uint3 noise_size = uint3(SH_BLUE_NOISE_TEX_WIDTH, SH_BLUE_NOISE_TEX_HEIGHT, SH_BLUE_NOISE_TEX_DEPTH); uint3 noise_size = uint3(SH_BLUE_NOISE_TEX_WIDTH, SH_BLUE_NOISE_TEX_HEIGHT, SH_BLUE_NOISE_TEX_DEPTH);
uint noise = noise_tex[noise_coord % noise_size]; uint noise = noise_tex[noise_coord % noise_size];
return (float)noise / (float)0xFFFF; return ((float)noise / (float)0xFFFF) * TAU;
} }
INLINE float4 get_light_in_dir(uint2 ray_start, float2 ray_dir) INLINE float4 get_light_in_dir(uint2 ray_start, float2 ray_dir)
@ -79,12 +79,7 @@ INLINE float4 get_light_at_pos(uint2 pos)
{ {
float4 result = 0; float4 result = 0;
for (uint i = 0; i < SAMPLES; ++i) { for (uint i = 0; i < SAMPLES; ++i) {
float angle = ((((float)i + rand_float_from_float2((float2)pos + (float)i)) / SAMPLES)) * TAU; float angle = rand_angle(pos, i);
// float angle = (rand_float_from_float2(pos)) * TAU;
// float angle = (rand_float_from_float2(pos)) * TAU;
// float angle = (((float)i / SAMPLES)) * TAU;
// float angle = (rand_float_from_float2(pos)) * TAU;
float2 dir = float2(cos(angle), sin(angle)); float2 dir = float2(cos(angle), sin(angle));
float4 light_in_dir = get_light_in_dir(pos, dir); float4 light_in_dir = get_light_in_dir(pos, dir);
result += light_in_dir; result += light_in_dir;