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Add optional depth fog

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This commit is contained in:
Eidolon
2022-09-18 00:31:43 -05:00
committed by Rafael Correa
parent 9283d0d65c
commit 08f4560e69
27 changed files with 406 additions and 33 deletions
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11
servers/rendering/renderer_rd/shaders/forward_clustered/scene_forward_clustered.glsl
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@@ -656,6 +656,7 @@ layout(constant_id = 9) const uint sc_directional_penumbra_shadow_samples = 4;
layout(constant_id = 10) const bool sc_decal_use_mipmaps = true;
layout(constant_id = 11) const bool sc_projector_use_mipmaps = true;
layout(constant_id = 12) const bool sc_use_depth_fog = false;
// not used in clustered renderer but we share some code with the mobile renderer that requires this.
const float sc_luminance_multiplier = 1.0;
@@ -848,7 +849,15 @@ vec4 fog_process(vec3 vertex) {
}
}
float fog_amount = 1.0 - exp(min(0.0, -length(vertex) * scene_data_block.data.fog_density));
float fog_amount = 0.0;
if (sc_use_depth_fog) {
float fog_z = smoothstep(scene_data_block.data.fog_depth_begin, scene_data_block.data.fog_depth_end, length(vertex));
float fog_quad_amount = pow(fog_z, scene_data_block.data.fog_depth_curve) * scene_data_block.data.fog_density;
fog_amount = fog_quad_amount;
} else {
fog_amount = 1 - exp(min(0.0, -length(vertex) * scene_data_block.data.fog_density));
}
if (abs(scene_data_block.data.fog_height_density) >= 0.0001) {
float y = (scene_data_block.data.inv_view_matrix * vec4(vertex, 1.0)).y;