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| author | x2048 <codeforsmile@gmail.com> | 2022-03-31 22:40:06 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-03-31 22:40:06 +0200 |
| commit | 31578303a4eab6b6b083e57b6bf8d12ff3b3d991 (patch) | |
| tree | 3ff56df6e29207c1ca3f2f93c5327f1cc786a7ec /client/shaders/object_shader/opengl_vertex.glsl | |
| parent | 06d197cdd042392e1551e5e7244c61300a6bb4e3 (diff) | |
| download | minetest-31578303a4eab6b6b083e57b6bf8d12ff3b3d991.tar.gz minetest-31578303a4eab6b6b083e57b6bf8d12ff3b3d991.tar.bz2 minetest-31578303a4eab6b6b083e57b6bf8d12ff3b3d991.zip | |
Tune shadow perspective distortion (#12146)
* Pass perspective distortion parameters as uniforms
* Set all perspective bias parameters via ShadowRenderer
* Recalibrate perspective distortion and shadow range to render less shadow geometry with the same quality and observed shadow distance
Diffstat (limited to 'client/shaders/object_shader/opengl_vertex.glsl')
| -rw-r--r-- | client/shaders/object_shader/opengl_vertex.glsl | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/client/shaders/object_shader/opengl_vertex.glsl b/client/shaders/object_shader/opengl_vertex.glsl index ff0067302..55861b0e9 100644 --- a/client/shaders/object_shader/opengl_vertex.glsl +++ b/client/shaders/object_shader/opengl_vertex.glsl @@ -37,8 +37,8 @@ const vec3 artificialLight = vec3(1.04, 1.04, 1.04); varying float vIDiff; const float e = 2.718281828459; const float BS = 10.0; -const float bias0 = 0.9; -const float bias1 = 1.0 - bias0; +uniform float xyPerspectiveBias0; +uniform float xyPerspectiveBias1; #ifdef ENABLE_DYNAMIC_SHADOWS // custom smoothstep implementation because it's not defined in glsl1.2 @@ -116,9 +116,9 @@ void main(void) // Distance from the vertex to the player float distanceToPlayer = length(eyeToVertex - v_LightDirection * dot(eyeToVertex, v_LightDirection)) / f_shadowfar; // perspective factor estimation according to the - float perspectiveFactor = distanceToPlayer * bias0 + bias1; + float perspectiveFactor = distanceToPlayer * xyPerspectiveBias0 + xyPerspectiveBias1; float texelSize = f_shadowfar * perspectiveFactor * perspectiveFactor / - (f_textureresolution * bias1 - perspectiveFactor * bias0); + (f_textureresolution * xyPerspectiveBias1 - perspectiveFactor * xyPerspectiveBias0); float slopeScale = clamp(pow(1.0 - cosLight*cosLight, 0.5), 0.0, 1.0); normalOffsetScale = texelSize * slopeScale; |