diff options
Diffstat (limited to 'servers/rendering/rasterizer_rd/shaders')
5 files changed, 206 insertions, 5 deletions
diff --git a/servers/rendering/rasterizer_rd/shaders/SCsub b/servers/rendering/rasterizer_rd/shaders/SCsub index 9d531d63ad..4cddf0f685 100644 --- a/servers/rendering/rasterizer_rd/shaders/SCsub +++ b/servers/rendering/rasterizer_rd/shaders/SCsub @@ -5,6 +5,7 @@ Import("env") if "RD_GLSL" in env["BUILDERS"]: env.RD_GLSL("canvas.glsl") env.RD_GLSL("canvas_occlusion.glsl") + env.RD_GLSL("canvas_sdf.glsl") env.RD_GLSL("copy.glsl") env.RD_GLSL("copy_to_fb.glsl") env.RD_GLSL("cubemap_roughness.glsl") diff --git a/servers/rendering/rasterizer_rd/shaders/canvas.glsl b/servers/rendering/rasterizer_rd/shaders/canvas.glsl index 2a0f94e733..51d7193a03 100644 --- a/servers/rendering/rasterizer_rd/shaders/canvas.glsl +++ b/servers/rendering/rasterizer_rd/shaders/canvas.glsl @@ -233,6 +233,30 @@ MATERIAL_UNIFORMS } material; #endif +vec2 screen_uv_to_sdf(vec2 p_uv) { + return canvas_data.screen_to_sdf * p_uv; +} + +float texture_sdf(vec2 p_sdf) { + vec2 uv = p_sdf * canvas_data.sdf_to_tex.xy + canvas_data.sdf_to_tex.zw; + float d = texture(sampler2D(sdf_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), uv).r; + d = d * SDF_MAX_LENGTH - 1.0; + return d * canvas_data.tex_to_sdf; +} + +vec2 texture_sdf_normal(vec2 p_sdf) { + vec2 uv = p_sdf * canvas_data.sdf_to_tex.xy + canvas_data.sdf_to_tex.zw; + + const float EPSILON = 0.001; + return normalize(vec2( + texture(sampler2D(sdf_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), uv + vec2(EPSILON, 0.0)).r - texture(sampler2D(sdf_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), uv - vec2(EPSILON, 0.0)).r, + texture(sampler2D(sdf_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), uv + vec2(0.0, EPSILON)).r - texture(sampler2D(sdf_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), uv - vec2(0.0, EPSILON)).r)); +} + +vec2 sdf_to_screen_uv(vec2 p_sdf) { + return p_sdf * canvas_data.sdf_to_screen; +} + /* clang-format off */ FRAGMENT_SHADER_GLOBALS /* clang-format on */ @@ -500,8 +524,13 @@ FRAGMENT_SHADER_CODE color = vec4(0.0); //invisible by default due to using light mask } +#ifdef MODE_LIGHT_ONLY + color = vec4(0.0); +#else color *= canvas_data.canvas_modulation; -#ifdef USE_LIGHTING +#endif + +#if defined(USE_LIGHTING) && !defined(MODE_UNSHADED) // Directional Lights diff --git a/servers/rendering/rasterizer_rd/shaders/canvas_occlusion.glsl b/servers/rendering/rasterizer_rd/shaders/canvas_occlusion.glsl index 421282cd4d..5c25235c58 100644 --- a/servers/rendering/rasterizer_rd/shaders/canvas_occlusion.glsl +++ b/servers/rendering/rasterizer_rd/shaders/canvas_occlusion.glsl @@ -2,6 +2,8 @@ #version 450 +VERSION_DEFINES + layout(location = 0) in highp vec3 vertex; layout(push_constant, binding = 0, std430) uniform Constants { @@ -13,12 +15,16 @@ layout(push_constant, binding = 0, std430) uniform Constants { } constants; +#ifdef MODE_SHADOW layout(location = 0) out highp float depth; +#endif void main() { highp vec4 vtx = vec4(vertex, 1.0) * mat4(constants.modelview[0], constants.modelview[1], vec4(0.0, 0.0, 1.0, 0.0), vec4(0.0, 0.0, 0.0, 1.0)); - depth = dot(constants.direction, vtx.xy); +#ifdef MODE_SHADOW + depth = dot(constants.direction, vtx.xy); +#endif gl_Position = constants.projection * vtx; } @@ -26,6 +32,8 @@ void main() { #version 450 +VERSION_DEFINES + layout(push_constant, binding = 0, std430) uniform Constants { mat4 projection; mat2x4 modelview; @@ -35,9 +43,17 @@ layout(push_constant, binding = 0, std430) uniform Constants { } constants; +#ifdef MODE_SHADOW layout(location = 0) in highp float depth; layout(location = 0) out highp float distance_buf; +#else +layout(location = 0) out highp float sdf_buf; +#endif void main() { +#ifdef MODE_SHADOW distance_buf = depth / constants.z_far; +#else + sdf_buf = 1.0; +#endif } diff --git a/servers/rendering/rasterizer_rd/shaders/canvas_sdf.glsl b/servers/rendering/rasterizer_rd/shaders/canvas_sdf.glsl new file mode 100644 index 0000000000..302ad03b41 --- /dev/null +++ b/servers/rendering/rasterizer_rd/shaders/canvas_sdf.glsl @@ -0,0 +1,135 @@ +#[compute] + +#version 450 + +VERSION_DEFINES + +layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in; + +layout(r8, set = 0, binding = 1) uniform restrict readonly image2D src_pixels; +layout(r16, set = 0, binding = 2) uniform restrict writeonly image2D dst_sdf; + +layout(rg16i, set = 0, binding = 3) uniform restrict readonly iimage2D src_process; +layout(rg16i, set = 0, binding = 4) uniform restrict writeonly iimage2D dst_process; + +layout(push_constant, binding = 0, std430) uniform Params { + ivec2 size; + int stride; + int shift; + ivec2 base_size; + uvec2 pad; +} +params; + +#define SDF_MAX_LENGTH 16384.0 + +void main() { + ivec2 pos = ivec2(gl_GlobalInvocationID.xy); + if (any(greaterThanEqual(pos, params.size))) { //too large, do nothing + return; + } + +#ifdef MODE_LOAD + + bool solid = imageLoad(src_pixels, pos).r > 0.5; + imageStore(dst_process, pos, solid ? ivec4(pos, 0, 0) : ivec4(ivec2(32767), 0, 0)); +#endif + +#ifdef MODE_LOAD_SHRINK + + int s = 1 << params.shift; + ivec2 base = pos << params.shift; + ivec2 center = base + ivec2(params.shift); + + ivec2 rel = ivec2(32767); + float d = 1e20; + for (int i = 0; i < s; i++) { + for (int j = 0; j < s; j++) { + ivec2 src_pos = base + ivec2(i, j); + if (any(greaterThanEqual(src_pos, params.base_size))) { + continue; + } + bool solid = imageLoad(src_pixels, src_pos).r > 0.5; + if (solid) { + float dist = length(vec2(src_pos - center)); + if (dist < d) { + d = dist; + rel = src_pos; + } + } + } + } + + imageStore(dst_process, pos, ivec4(rel, 0, 0)); +#endif + +#ifdef MODE_PROCESS + + ivec2 base = pos << params.shift; + ivec2 center = base + ivec2(params.shift); + + ivec2 rel = imageLoad(src_process, pos).xy; + + if (center != rel) { + //only process if it does not point to itself + const int ofs_table_size = 8; + const ivec2 ofs_table[ofs_table_size] = ivec2[]( + ivec2(-1, -1), + ivec2(0, -1), + ivec2(+1, -1), + + ivec2(-1, 0), + ivec2(+1, 0), + + ivec2(-1, +1), + ivec2(0, +1), + ivec2(+1, +1)); + + float dist = length(vec2(rel - center)); + for (int i = 0; i < ofs_table_size; i++) { + ivec2 src_pos = pos + ofs_table[i] * params.stride; + if (any(lessThan(src_pos, ivec2(0))) || any(greaterThanEqual(src_pos, params.size))) { + continue; + } + ivec2 src_rel = imageLoad(src_process, src_pos).xy; + float src_dist = length(vec2(src_rel - center)); + if (src_dist < dist) { + dist = src_dist; + rel = src_rel; + } + } + } + + imageStore(dst_process, pos, ivec4(rel, 0, 0)); +#endif + +#ifdef MODE_STORE + + ivec2 rel = imageLoad(src_process, pos).xy; + float d = length(vec2(rel - pos)); + if (d > 0.01) { + d += 1.0; //make it signed + } + d /= SDF_MAX_LENGTH; + d = clamp(d, 0.0, 1.0); + imageStore(dst_sdf, pos, vec4(d)); + +#endif + +#ifdef MODE_STORE_SHRINK + + ivec2 base = pos << params.shift; + ivec2 center = base + ivec2(params.shift); + + ivec2 rel = imageLoad(src_process, pos).xy; + float d = length(vec2(rel - center)); + + if (d > 0.01) { + d += 1.0; //make it signed + } + d /= SDF_MAX_LENGTH; + d = clamp(d, 0.0, 1.0); + imageStore(dst_sdf, pos, vec4(d)); + +#endif +} diff --git a/servers/rendering/rasterizer_rd/shaders/canvas_uniforms_inc.glsl b/servers/rendering/rasterizer_rd/shaders/canvas_uniforms_inc.glsl index bb39584cbb..cf7678ea31 100644 --- a/servers/rendering/rasterizer_rd/shaders/canvas_uniforms_inc.glsl +++ b/servers/rendering/rasterizer_rd/shaders/canvas_uniforms_inc.glsl @@ -3,6 +3,8 @@ #define M_PI 3.14159265359 +#define SDF_MAX_LENGTH 16384.0 + #define FLAGS_INSTANCING_STRIDE_MASK 0xF #define FLAGS_INSTANCING_ENABLED (1 << 4) #define FLAGS_INSTANCING_HAS_COLORS (1 << 5) @@ -24,6 +26,19 @@ #define FLAGS_DEFAULT_NORMAL_MAP_USED (1 << 26) #define FLAGS_DEFAULT_SPECULAR_MAP_USED (1 << 27) +#define SAMPLER_NEAREST_CLAMP 0 +#define SAMPLER_LINEAR_CLAMP 1 +#define SAMPLER_NEAREST_WITH_MIPMAPS_CLAMP 2 +#define SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP 3 +#define SAMPLER_NEAREST_WITH_MIPMAPS_ANISOTROPIC_CLAMP 4 +#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_CLAMP 5 +#define SAMPLER_NEAREST_REPEAT 6 +#define SAMPLER_LINEAR_REPEAT 7 +#define SAMPLER_NEAREST_WITH_MIPMAPS_REPEAT 8 +#define SAMPLER_LINEAR_WITH_MIPMAPS_REPEAT 9 +#define SAMPLER_NEAREST_WITH_MIPMAPS_ANISOTROPIC_REPEAT 10 +#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_REPEAT 11 + // Push Constant layout(push_constant, binding = 0, std430) uniform DrawData { @@ -68,8 +83,12 @@ layout(set = 0, binding = 1, std140) uniform CanvasData { float time; bool use_pixel_snap; + vec4 sdf_to_tex; + vec2 screen_to_sdf; + vec2 sdf_to_screen; + uint directional_light_count; - uint pad0; + float tex_to_sdf; uint pad1; uint pad2; } @@ -115,10 +134,11 @@ layout(set = 0, binding = 4) uniform texture2D shadow_atlas_texture; layout(set = 0, binding = 5) uniform sampler shadow_sampler; layout(set = 0, binding = 6) uniform texture2D screen_texture; +layout(set = 0, binding = 7) uniform texture2D sdf_texture; -layout(set = 0, binding = 7) uniform sampler material_samplers[12]; +layout(set = 0, binding = 8) uniform sampler material_samplers[12]; -layout(set = 0, binding = 8, std430) restrict readonly buffer GlobalVariableData { +layout(set = 0, binding = 9, std430) restrict readonly buffer GlobalVariableData { vec4 data[]; } global_variables; |