diff options
Diffstat (limited to 'servers/rendering/rasterizer_rd/shaders/copy.glsl')
| -rw-r--r-- | servers/rendering/rasterizer_rd/shaders/copy.glsl | 99 |
1 files changed, 66 insertions, 33 deletions
diff --git a/servers/rendering/rasterizer_rd/shaders/copy.glsl b/servers/rendering/rasterizer_rd/shaders/copy.glsl index eb39c28fa9..355a2b9d75 100644 --- a/servers/rendering/rasterizer_rd/shaders/copy.glsl +++ b/servers/rendering/rasterizer_rd/shaders/copy.glsl @@ -14,6 +14,7 @@ layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in; #define FLAG_FLIP_Y (1 << 5) #define FLAG_FORCE_LUMINANCE (1 << 6) #define FLAG_COPY_ALL_SOURCE (1 << 7) +#define FLAG_HIGH_QUALITY_GLOW (1 << 8) layout(push_constant, binding = 1, std430) uniform Params { ivec4 section; @@ -57,12 +58,20 @@ layout(rgba8, set = 3, binding = 0) uniform restrict writeonly image2D dest_buff layout(rgba32f, set = 3, binding = 0) uniform restrict writeonly image2D dest_buffer; #endif +#ifdef MODE_GAUSSIAN_GLOW +shared vec4 local_cache[256]; +shared vec4 temp_cache[128]; +#endif + void main() { // Pixel being shaded ivec2 pos = ivec2(gl_GlobalInvocationID.xy); + +#ifndef MODE_GAUSSIAN_GLOW // Glow needs the extra threads if (any(greaterThanEqual(pos, params.section.zw))) { //too large, do nothing return; } +#endif #ifdef MODE_MIPMAP @@ -103,45 +112,69 @@ void main() { #ifdef MODE_GAUSSIAN_GLOW - //Glow uses larger sigma 1 for a more rounded blur effect + // First pass copy texture into 16x16 local memory for every 8x8 thread block + vec2 quad_center_uv = clamp(vec2(gl_GlobalInvocationID.xy + gl_LocalInvocationID.xy - 3.5) / params.section.zw, vec2(0.5 / params.section.zw), vec2(1.0 - 1.5 / params.section.zw)); + uint dest_index = gl_LocalInvocationID.x * 2 + gl_LocalInvocationID.y * 2 * 16; + + if (bool(params.flags & FLAG_HIGH_QUALITY_GLOW)) { + vec2 quad_offset_uv = clamp((vec2(gl_GlobalInvocationID.xy + gl_LocalInvocationID.xy - 3.0)) / params.section.zw, vec2(0.5 / params.section.zw), vec2(1.0 - 1.5 / params.section.zw)); -#define GLOW_ADD(m_ofs, m_mult) \ - { \ - ivec2 ofs = base_pos + m_ofs; \ - if (all(greaterThanEqual(ofs, section_begin)) && all(lessThan(ofs, section_end))) { \ - color += texelFetch(source_color, ofs, 0) * m_mult; \ - } \ + local_cache[dest_index] = (textureLod(source_color, quad_center_uv, 0) + textureLod(source_color, quad_offset_uv, 0)) * 0.5; + local_cache[dest_index + 1] = (textureLod(source_color, quad_center_uv + vec2(1.0 / params.section.z, 0.0), 0) + textureLod(source_color, quad_offset_uv + vec2(1.0 / params.section.z, 0.0), 0)) * 0.5; + local_cache[dest_index + 16] = (textureLod(source_color, quad_center_uv + vec2(0.0, 1.0 / params.section.w), 0) + textureLod(source_color, quad_offset_uv + vec2(0.0, 1.0 / params.section.w), 0)) * 0.5; + local_cache[dest_index + 16 + 1] = (textureLod(source_color, quad_center_uv + vec2(1.0 / params.section.zw), 0) + textureLod(source_color, quad_offset_uv + vec2(1.0 / params.section.zw), 0)) * 0.5; + } else { + local_cache[dest_index] = textureLod(source_color, quad_center_uv, 0); + local_cache[dest_index + 1] = textureLod(source_color, quad_center_uv + vec2(1.0 / params.section.z, 0.0), 0); + local_cache[dest_index + 16] = textureLod(source_color, quad_center_uv + vec2(0.0, 1.0 / params.section.w), 0); + local_cache[dest_index + 16 + 1] = textureLod(source_color, quad_center_uv + vec2(1.0 / params.section.zw), 0); } + memoryBarrierShared(); + barrier(); + + // Horizontal pass. Needs to copy into 8x16 chunk of local memory so vertical pass has full resolution + uint read_index = gl_LocalInvocationID.x + gl_LocalInvocationID.y * 32 + 4; + vec4 color_top = vec4(0.0); + color_top += local_cache[read_index] * 0.174938; + color_top += local_cache[read_index + 1] * 0.165569; + color_top += local_cache[read_index + 2] * 0.140367; + color_top += local_cache[read_index + 3] * 0.106595; + color_top += local_cache[read_index - 1] * 0.165569; + color_top += local_cache[read_index - 2] * 0.140367; + color_top += local_cache[read_index - 3] * 0.106595; + + vec4 color_bottom = vec4(0.0); + color_bottom += local_cache[read_index + 16] * 0.174938; + color_bottom += local_cache[read_index + 1 + 16] * 0.165569; + color_bottom += local_cache[read_index + 2 + 16] * 0.140367; + color_bottom += local_cache[read_index + 3 + 16] * 0.106595; + color_bottom += local_cache[read_index - 1 + 16] * 0.165569; + color_bottom += local_cache[read_index - 2 + 16] * 0.140367; + color_bottom += local_cache[read_index - 3 + 16] * 0.106595; + + // rotate samples to take advantage of cache coherency + uint write_index = gl_LocalInvocationID.y * 2 + gl_LocalInvocationID.x * 16; + + temp_cache[write_index] = color_top; + temp_cache[write_index + 1] = color_bottom; + + memoryBarrierShared(); + barrier(); + + // Vertical pass + uint index = gl_LocalInvocationID.y + gl_LocalInvocationID.x * 16 + 4; vec4 color = vec4(0.0); - if (bool(params.flags & FLAG_HORIZONTAL)) { - ivec2 base_pos = (pos + params.section.xy) << 1; - ivec2 section_begin = params.section.xy << 1; - ivec2 section_end = section_begin + (params.section.zw << 1); - - GLOW_ADD(ivec2(0, 0), 0.174938); - GLOW_ADD(ivec2(1, 0), 0.165569); - GLOW_ADD(ivec2(2, 0), 0.140367); - GLOW_ADD(ivec2(3, 0), 0.106595); - GLOW_ADD(ivec2(-1, 0), 0.165569); - GLOW_ADD(ivec2(-2, 0), 0.140367); - GLOW_ADD(ivec2(-3, 0), 0.106595); - color *= params.glow_strength; - } else { - ivec2 base_pos = pos + params.section.xy; - ivec2 section_begin = params.section.xy; - ivec2 section_end = section_begin + params.section.zw; - - GLOW_ADD(ivec2(0, 0), 0.288713); - GLOW_ADD(ivec2(0, 1), 0.233062); - GLOW_ADD(ivec2(0, 2), 0.122581); - GLOW_ADD(ivec2(0, -1), 0.233062); - GLOW_ADD(ivec2(0, -2), 0.122581); - color *= params.glow_strength; - } + color += temp_cache[index] * 0.174938; + color += temp_cache[index + 1] * 0.165569; + color += temp_cache[index + 2] * 0.140367; + color += temp_cache[index + 3] * 0.106595; + color += temp_cache[index - 1] * 0.165569; + color += temp_cache[index - 2] * 0.140367; + color += temp_cache[index - 3] * 0.106595; -#undef GLOW_ADD + color *= params.glow_strength; if (bool(params.flags & FLAG_GLOW_FIRST_PASS)) { #ifdef GLOW_USE_AUTO_EXPOSURE |