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| author | x2048 <codeforsmile@gmail.com> | 2021-07-25 12:36:23 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-07-25 12:36:23 +0200 |
| commit | bf3acbf388406f736286d990adb5f35a9023c390 (patch) | |
| tree | 9fdff755e37253580c222ff768802a6b0170be10 /client/shaders/nodes_shader | |
| parent | ff2d2a6e93d75d24b3f69f2b3690bcac6440961e (diff) | |
| download | minetest-bf3acbf388406f736286d990adb5f35a9023c390.tar.gz minetest-bf3acbf388406f736286d990adb5f35a9023c390.tar.bz2 minetest-bf3acbf388406f736286d990adb5f35a9023c390.zip | |
Distribute shadow map update over multiple frames to reduce stutter (#11422)
Reduces stutter and freezes when playing.
* Maintains double SM and SM Color textures
* Light frustum update triggers incremental generation of shadow map into secondary 'future' textures.
* Every incremental update renders a portion of the shadow draw list (split equally).
* After defined number of frames (currently, 4), 'future' and 'current' textures are swapped, and DirectionalLight 'commits' the new frustum to use when rendering shadows on screen.
Co-authored-by: sfan5 <sfan5@live.de>
Diffstat (limited to 'client/shaders/nodes_shader')
| -rw-r--r-- | client/shaders/nodes_shader/opengl_fragment.glsl | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/client/shaders/nodes_shader/opengl_fragment.glsl b/client/shaders/nodes_shader/opengl_fragment.glsl index 64a88ebbb..f85ca7b48 100644 --- a/client/shaders/nodes_shader/opengl_fragment.glsl +++ b/client/shaders/nodes_shader/opengl_fragment.glsl @@ -197,7 +197,7 @@ float getPenumbraRadius(sampler2D shadowsampler, vec2 smTexCoord, float realDist float pointDepth; float maxRadius = SOFTSHADOWRADIUS * 5.0 * multiplier; - float bound = clamp(PCFBOUND * (1 - baseLength), 0.5, PCFBOUND); + float bound = clamp(PCFBOUND * (1 - baseLength), 0.0, PCFBOUND); int n = 0; for (y = -bound; y <= bound; y += 1.0) @@ -304,7 +304,7 @@ vec4 getShadowColor(sampler2D shadowsampler, vec2 smTexCoord, float realDistance float perspectiveFactor; float texture_size = 1.0 / (f_textureresolution * 0.5); - int samples = int(clamp(PCFSAMPLES * (1 - baseLength) * (1 - baseLength), 1, PCFSAMPLES)); + int samples = int(clamp(PCFSAMPLES * (1 - baseLength) * (1 - baseLength), PCFSAMPLES / 4, PCFSAMPLES)); int init_offset = int(floor(mod(((smTexCoord.x * 34.0) + 1.0) * smTexCoord.y, 64.0-samples))); int end_offset = int(samples) + init_offset; @@ -334,7 +334,7 @@ float getShadow(sampler2D shadowsampler, vec2 smTexCoord, float realDistance) float perspectiveFactor; float texture_size = 1.0 / (f_textureresolution * 0.5); - int samples = int(clamp(PCFSAMPLES * (1 - baseLength) * (1 - baseLength), 1, PCFSAMPLES)); + int samples = int(clamp(PCFSAMPLES * (1 - baseLength) * (1 - baseLength), PCFSAMPLES / 4, PCFSAMPLES)); int init_offset = int(floor(mod(((smTexCoord.x * 34.0) + 1.0) * smTexCoord.y, 64.0-samples))); int end_offset = int(samples) + init_offset; @@ -370,7 +370,7 @@ vec4 getShadowColor(sampler2D shadowsampler, vec2 smTexCoord, float realDistance float texture_size = 1.0 / (f_textureresolution * 0.5); float y, x; - float bound = clamp(PCFBOUND * (1 - baseLength), 0.5, PCFBOUND); + float bound = clamp(PCFBOUND * (1 - baseLength), PCFBOUND / 2, PCFBOUND); int n = 0; // basic PCF filter @@ -402,7 +402,7 @@ float getShadow(sampler2D shadowsampler, vec2 smTexCoord, float realDistance) float texture_size = 1.0 / (f_textureresolution * 0.5); float y, x; - float bound = clamp(PCFBOUND * (1 - baseLength), 0.5, PCFBOUND); + float bound = clamp(PCFBOUND * (1 - baseLength), PCFBOUND / 2, PCFBOUND); int n = 0; // basic PCF filter |