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/* clang-format off */
[vertex]
#version 450
VERSION_DEFINES
layout(location = 0) out vec2 uv_interp;
/* clang-format on */
layout(push_constant, binding = 1, std430) uniform Params {
mat3 orientation;
vec4 proj;
vec4 position_multiplier;
float time;
}
params;
void main() {
vec2 base_arr[4] = vec2[](vec2(-1.0, -1.0), vec2(-1.0, 1.0), vec2(1.0, 1.0), vec2(1.0, -1.0));
uv_interp = base_arr[gl_VertexIndex];
gl_Position = vec4(uv_interp, 1.0, 1.0);
}
/* clang-format off */
[fragment]
#version 450
VERSION_DEFINES
#define M_PI 3.14159265359
layout(location = 0) in vec2 uv_interp;
/* clang-format on */
layout(push_constant, binding = 1, std430) uniform Params {
mat3 orientation;
vec4 proj;
vec4 position_multiplier;
float time; //TODO consider adding vec2 screen res, and float radiance size
}
params;
#define SAMPLER_NEAREST_CLAMP 0
#define SAMPLER_LINEAR_CLAMP 1
#define SAMPLER_NEAREST_WITH_MIPMAPS_CLAMP 2
#define SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP 3
#define SAMPLER_NEAREST_WITH_MIPMAPS_ANISOTROPIC_CLAMP 4
#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_CLAMP 5
#define SAMPLER_NEAREST_REPEAT 6
#define SAMPLER_LINEAR_REPEAT 7
#define SAMPLER_NEAREST_WITH_MIPMAPS_REPEAT 8
#define SAMPLER_LINEAR_WITH_MIPMAPS_REPEAT 9
#define SAMPLER_NEAREST_WITH_MIPMAPS_ANISOTROPIC_REPEAT 10
#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_REPEAT 11
layout(set = 0, binding = 0) uniform sampler material_samplers[12];
#ifdef USE_MATERIAL_UNIFORMS
layout(set = 1, binding = 0, std140) uniform MaterialUniforms{
/* clang-format off */
MATERIAL_UNIFORMS
/* clang-format on */
} material;
#endif
layout(set = 2, binding = 0) uniform textureCube radiance;
#ifdef USE_CUBEMAP_PASS
layout(set = 2, binding = 1) uniform textureCube half_res;
layout(set = 2, binding = 2) uniform textureCube quarter_res;
#else
layout(set = 2, binding = 1) uniform texture2D half_res;
layout(set = 2, binding = 2) uniform texture2D quarter_res;
#endif
#ifdef USE_CUBEMAP_PASS
#define AT_CUBEMAP_PASS true
#else
#define AT_CUBEMAP_PASS false
#endif
#ifdef USE_HALF_RES_PASS
#define AT_HALF_RES_PASS true
#else
#define AT_HALF_RES_PASS false
#endif
#ifdef USE_QUARTER_RES_PASS
#define AT_QUARTER_RES_PASS true
#else
#define AT_QUARTER_RES_PASS false
#endif
struct DirectionalLightData {
vec3 direction;
float energy;
vec3 color;
bool enabled;
};
layout(set = 3, binding = 0, std140) uniform DirectionalLights {
DirectionalLightData data[MAX_DIRECTIONAL_LIGHT_DATA_STRUCTS];
}
directional_lights;
/* clang-format off */
FRAGMENT_SHADER_GLOBALS
/* clang-format on */
layout(location = 0) out vec4 frag_color;
void main() {
vec3 cube_normal;
cube_normal.z = -1.0;
cube_normal.x = (cube_normal.z * (-uv_interp.x - params.proj.x)) / params.proj.y;
cube_normal.y = -(cube_normal.z * (-uv_interp.y - params.proj.z)) / params.proj.w;
cube_normal = mat3(params.orientation) * cube_normal;
cube_normal.z = -cube_normal.z;
cube_normal = normalize(cube_normal);
vec2 uv = uv_interp * 0.5 + 0.5;
vec2 panorama_coords = vec2(atan(cube_normal.x, cube_normal.z), acos(cube_normal.y));
if (panorama_coords.x < 0.0) {
panorama_coords.x += M_PI * 2.0;
}
panorama_coords /= vec2(M_PI * 2.0, M_PI);
vec3 color = vec3(0.0, 0.0, 0.0);
float alpha = 1.0; // Only available to subpasses
vec4 half_res_color = vec4(1.0);
vec4 quarter_res_color = vec4(1.0);
#ifdef USE_CUBEMAP_PASS
float using_cubemap = 1.0;
#ifdef USES_HALF_RES_COLOR
half_res_color = texture(samplerCube(half_res, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), cube_normal);
#endif
#ifdef USES_QUARTER_RES_COLOR
quarter_res_color = texture(samplerCube(quarter_res, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), cube_normal);
#endif
#else
float using_cubemap = 0.0;
#ifdef USES_HALF_RES_COLOR
half_res_color = textureLod(sampler2D(half_res, material_samplers[SAMPLER_LINEAR_CLAMP]), uv, 0.0);
#endif
#ifdef USES_QUARTER_RES_COLOR
quarter_res_color = textureLod(sampler2D(quarter_res, material_samplers[SAMPLER_LINEAR_CLAMP]), uv, 0.0);
#endif
#endif
// unused, just here to make our compiler happy, make sure we don't execute any light code the user adds in..
#ifndef REALLYINCLUDETHIS
{
/* clang-format off */
LIGHT_SHADER_CODE
/* clang-format on */
}
#endif
{
/* clang-format off */
FRAGMENT_SHADER_CODE
/* clang-format on */
}
frag_color.rgb = color * params.position_multiplier.w;
frag_color.a = alpha;
}
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