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Add Soft Very Low shadow quality mode for 3D

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This can be used to improve 3D shadow rendering quality at little
performance cost. Unlike the existing Hard setting which is limited
to variable shadow blur only, it works with both fixed blur and
variable blur.
This commit is contained in:
Hugo Locurcio
2021-10-19 16:52:57 +02:00
parent 85a8939fa2
commit e87ec8ec17
6 changed files with 41 additions and 16 deletions
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6
servers/rendering/renderer_rd/shaders/scene_forward_lights_inc.glsl
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@@ -301,7 +301,7 @@ float sample_directional_pcf_shadow(texture2D shadow, vec2 shadow_pixel_size, ve
float depth = coord.z;
//if only one sample is taken, take it from the center
if (sc_directional_soft_shadow_samples == 1) {
if (sc_directional_soft_shadow_samples == 0) {
return textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos, depth, 1.0));
}
@@ -327,7 +327,7 @@ float sample_pcf_shadow(texture2D shadow, vec2 shadow_pixel_size, vec3 coord) {
float depth = coord.z;
//if only one sample is taken, take it from the center
if (sc_soft_shadow_samples == 1) {
if (sc_soft_shadow_samples == 0) {
return textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos, depth, 1.0));
}
@@ -350,7 +350,7 @@ float sample_pcf_shadow(texture2D shadow, vec2 shadow_pixel_size, vec3 coord) {
float sample_omni_pcf_shadow(texture2D shadow, float blur_scale, vec2 coord, vec4 uv_rect, vec2 flip_offset, float depth) {
//if only one sample is taken, take it from the center
if (sc_soft_shadow_samples == 1) {
if (sc_soft_shadow_samples == 0) {
vec2 pos = coord * 0.5 + 0.5;
pos = uv_rect.xy + pos * uv_rect.zw;
return textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos, depth, 1.0));