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Working sky shader implementation

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This commit is contained in:
clayjohn
2020-03-19 17:32:19 -07:00
parent c3fee7ba6c
commit 61a74739ca
40 changed files with 2354 additions and 1744 deletions
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80
servers/visual/rasterizer_rd/shaders/cubemap_downsampler.glsl
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@@ -30,13 +30,7 @@ VERSION_DEFINES
layout(local_size_x = BLOCK_SIZE, local_size_y = BLOCK_SIZE, local_size_z = 1) in;
/* clang-format on */
#ifdef MODE_SOURCE_PANORAMA
layout(set = 0, binding = 0) uniform sampler2D source_panorama;
#endif
#ifdef MODE_SOURCE_CUBEMAP
layout(set = 0, binding = 0) uniform samplerCube source_cubemap;
#endif
layout(rgba16f, set = 1, binding = 0) uniform restrict writeonly imageCube dest_cubemap;
@@ -83,32 +77,6 @@ float calcWeight(float u, float v) {
return val * sqrt(val);
}
#ifdef MODE_SOURCE_PANORAMA
vec4 texturePanorama(vec3 normal, sampler2D pano) {
vec2 st = vec2(
atan(normal.x, -normal.z),
acos(normal.y));
if (st.x < 0.0)
st.x += M_PI * 2.0;
st /= vec2(M_PI * 2.0, M_PI);
return textureLod(pano, st, 0.0);
}
#endif
vec4 get_texture(vec3 p_dir) {
#ifdef MODE_SOURCE_PANORAMA
return texturePanorama(normalize(p_dir), source_panorama);
#else
return textureLod(source_cubemap, normalize(p_dir), 0.0);
#endif
}
void main() {
uvec3 id = gl_GlobalInvocationID;
uint face_size = params.face_size;
@@ -138,81 +106,81 @@ void main() {
switch (id.z) {
case 0:
get_dir_0(dir, u0, v0);
color = get_texture(dir) * weights[0];
color = textureLod(source_cubemap, normalize(dir), 0.0) * weights[0];
get_dir_0(dir, u1, v0);
color += get_texture(dir) * weights[1];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[1];
get_dir_0(dir, u0, v1);
color += get_texture(dir) * weights[2];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[2];
get_dir_0(dir, u1, v1);
color += get_texture(dir) * weights[3];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[3];
break;
case 1:
get_dir_1(dir, u0, v0);
color = get_texture(dir) * weights[0];
color = textureLod(source_cubemap, normalize(dir), 0.0) * weights[0];
get_dir_1(dir, u1, v0);
color += get_texture(dir) * weights[1];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[1];
get_dir_1(dir, u0, v1);
color += get_texture(dir) * weights[2];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[2];
get_dir_1(dir, u1, v1);
color += get_texture(dir) * weights[3];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[3];
break;
case 2:
get_dir_2(dir, u0, v0);
color = get_texture(dir) * weights[0];
color = textureLod(source_cubemap, normalize(dir), 0.0) * weights[0];
get_dir_2(dir, u1, v0);
color += get_texture(dir) * weights[1];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[1];
get_dir_2(dir, u0, v1);
color += get_texture(dir) * weights[2];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[2];
get_dir_2(dir, u1, v1);
color += get_texture(dir) * weights[3];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[3];
break;
case 3:
get_dir_3(dir, u0, v0);
color = get_texture(dir) * weights[0];
color = textureLod(source_cubemap, normalize(dir), 0.0) * weights[0];
get_dir_3(dir, u1, v0);
color += get_texture(dir) * weights[1];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[1];
get_dir_3(dir, u0, v1);
color += get_texture(dir) * weights[2];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[2];
get_dir_3(dir, u1, v1);
color += get_texture(dir) * weights[3];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[3];
break;
case 4:
get_dir_4(dir, u0, v0);
color = get_texture(dir) * weights[0];
color = textureLod(source_cubemap, normalize(dir), 0.0) * weights[0];
get_dir_4(dir, u1, v0);
color += get_texture(dir) * weights[1];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[1];
get_dir_4(dir, u0, v1);
color += get_texture(dir) * weights[2];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[2];
get_dir_4(dir, u1, v1);
color += get_texture(dir) * weights[3];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[3];
break;
default:
get_dir_5(dir, u0, v0);
color = get_texture(dir) * weights[0];
color = textureLod(source_cubemap, normalize(dir), 0.0) * weights[0];
get_dir_5(dir, u1, v0);
color += get_texture(dir) * weights[1];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[1];
get_dir_5(dir, u0, v1);
color += get_texture(dir) * weights[2];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[2];
get_dir_5(dir, u1, v1);
color += get_texture(dir) * weights[3];
color += textureLod(source_cubemap, normalize(dir), 0.0) * weights[3];
break;
}
imageStore(dest_cubemap, ivec3(id), color);