godot/servers/rendering/rasterizer_rd/shaders/sky.glsl
Rémi Verschelde 0be6d925dc Style: clang-format: Disable KeepEmptyLinesAtTheStartOfBlocks
Which means that reduz' beloved style which we all became used to
will now be changed automatically to remove the first empty line.

This makes us lean closer to 1TBS (the one true brace style) instead
of hybridating it with some Allman-inspired spacing.

There's still the case of braces around single-statement blocks that
needs to be addressed (but clang-format can't help with that, but
clang-tidy may if we agree about it).

Part of #33027.
2020-05-14 16:54:55 +02:00

190 lines
4.7 KiB
GLSL

/* 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];
layout(set = 0, binding = 1, std430) restrict readonly buffer GlobalVariableData {
vec4 data[];
}
global_variables;
#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 {
vec4 direction_energy;
vec4 color_size;
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
vec3 inverted_cube_normal = cube_normal;
inverted_cube_normal.z *= -1.0;
#ifdef USES_HALF_RES_COLOR
half_res_color = texture(samplerCube(half_res, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), inverted_cube_normal);
#endif
#ifdef USES_QUARTER_RES_COLOR
quarter_res_color = texture(samplerCube(quarter_res, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), inverted_cube_normal);
#endif
#else
#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;
// Blending is disabled for Sky, so alpha doesn't blend
// alpha is used for subsurface scattering so make sure it doesn't get applied to Sky
if (!AT_CUBEMAP_PASS && !AT_HALF_RES_PASS && !AT_QUARTER_RES_PASS) {
frag_color.a = 0.0;
}
}