diff options
Diffstat (limited to 'servers/rendering/rasterizer_rd/shaders/giprobe_debug.glsl')
| -rw-r--r-- | servers/rendering/rasterizer_rd/shaders/giprobe_debug.glsl | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/servers/rendering/rasterizer_rd/shaders/giprobe_debug.glsl b/servers/rendering/rasterizer_rd/shaders/giprobe_debug.glsl new file mode 100644 index 0000000000..b1784e7eee --- /dev/null +++ b/servers/rendering/rasterizer_rd/shaders/giprobe_debug.glsl @@ -0,0 +1,208 @@ +/* clang-format off */ +[vertex] + +#version 450 + +VERSION_DEFINES + +struct CellData { + uint position; // xyz 10 bits + uint albedo; //rgb albedo + uint emission; //rgb normalized with e as multiplier + uint normal; //RGB normal encoded +}; +/* clang-format on */ + +layout(set = 0, binding = 1, std140) buffer CellDataBuffer { + CellData data[]; +} +cell_data; + +layout(set = 0, binding = 2) uniform texture3D color_tex; + +layout(set = 0, binding = 3) uniform sampler tex_sampler; + +#ifdef USE_ANISOTROPY +layout(set = 0, binding = 4) uniform texture3D aniso_pos_tex; +layout(set = 0, binding = 5) uniform texture3D aniso_neg_tex; +#endif + +layout(push_constant, binding = 0, std430) uniform Params { + + mat4 projection; + uint cell_offset; + float dynamic_range; + float alpha; + uint level; + ivec3 bounds; + uint pad; +} +params; + +layout(location = 0) out vec4 color_interp; + +void main() { + + const vec3 cube_triangles[36] = vec3[]( + vec3(-1.0f, -1.0f, -1.0f), + vec3(-1.0f, -1.0f, 1.0f), + vec3(-1.0f, 1.0f, 1.0f), + vec3(1.0f, 1.0f, -1.0f), + vec3(-1.0f, -1.0f, -1.0f), + vec3(-1.0f, 1.0f, -1.0f), + vec3(1.0f, -1.0f, 1.0f), + vec3(-1.0f, -1.0f, -1.0f), + vec3(1.0f, -1.0f, -1.0f), + vec3(1.0f, 1.0f, -1.0f), + vec3(1.0f, -1.0f, -1.0f), + vec3(-1.0f, -1.0f, -1.0f), + vec3(-1.0f, -1.0f, -1.0f), + vec3(-1.0f, 1.0f, 1.0f), + vec3(-1.0f, 1.0f, -1.0f), + vec3(1.0f, -1.0f, 1.0f), + vec3(-1.0f, -1.0f, 1.0f), + vec3(-1.0f, -1.0f, -1.0f), + vec3(-1.0f, 1.0f, 1.0f), + vec3(-1.0f, -1.0f, 1.0f), + vec3(1.0f, -1.0f, 1.0f), + vec3(1.0f, 1.0f, 1.0f), + vec3(1.0f, -1.0f, -1.0f), + vec3(1.0f, 1.0f, -1.0f), + vec3(1.0f, -1.0f, -1.0f), + vec3(1.0f, 1.0f, 1.0f), + vec3(1.0f, -1.0f, 1.0f), + vec3(1.0f, 1.0f, 1.0f), + vec3(1.0f, 1.0f, -1.0f), + vec3(-1.0f, 1.0f, -1.0f), + vec3(1.0f, 1.0f, 1.0f), + vec3(-1.0f, 1.0f, -1.0f), + vec3(-1.0f, 1.0f, 1.0f), + vec3(1.0f, 1.0f, 1.0f), + vec3(-1.0f, 1.0f, 1.0f), + vec3(1.0f, -1.0f, 1.0f)); + + vec3 vertex = cube_triangles[gl_VertexIndex] * 0.5 + 0.5; +#ifdef MODE_DEBUG_LIGHT_FULL + uvec3 posu = uvec3(gl_InstanceIndex % params.bounds.x, (gl_InstanceIndex / params.bounds.x) % params.bounds.y, gl_InstanceIndex / (params.bounds.y * params.bounds.x)); +#else + uint cell_index = gl_InstanceIndex + params.cell_offset; + + uvec3 posu = uvec3(cell_data.data[cell_index].position & 0x7FF, (cell_data.data[cell_index].position >> 11) & 0x3FF, cell_data.data[cell_index].position >> 21); +#endif + +#ifdef MODE_DEBUG_EMISSION + color_interp.xyz = vec3(uvec3(cell_data.data[cell_index].emission & 0x1ff, (cell_data.data[cell_index].emission >> 9) & 0x1ff, (cell_data.data[cell_index].emission >> 18) & 0x1ff)) * pow(2.0, float(cell_data.data[cell_index].emission >> 27) - 15.0 - 9.0); +#endif + +#ifdef MODE_DEBUG_COLOR + color_interp.xyz = unpackUnorm4x8(cell_data.data[cell_index].albedo).xyz; +#endif + +#ifdef MODE_DEBUG_LIGHT + +#ifdef USE_ANISOTROPY + +#define POS_X 0 +#define POS_Y 1 +#define POS_Z 2 +#define NEG_X 3 +#define NEG_Y 4 +#define NEG_Z 5 + + const uint triangle_aniso[12] = uint[]( + NEG_X, + NEG_Z, + NEG_Y, + NEG_Z, + NEG_X, + NEG_Y, + POS_Z, + POS_X, + POS_X, + POS_Y, + POS_Y, + POS_Z); + + color_interp.xyz = texelFetch(sampler3D(color_tex, tex_sampler), ivec3(posu), int(params.level)).xyz * params.dynamic_range; + vec3 aniso_pos = texelFetch(sampler3D(aniso_pos_tex, tex_sampler), ivec3(posu), int(params.level)).xyz; + vec3 aniso_neg = texelFetch(sampler3D(aniso_neg_tex, tex_sampler), ivec3(posu), int(params.level)).xyz; + uint side = triangle_aniso[gl_VertexIndex / 3]; + + float strength = 0.0; + switch (side) { + case POS_X: strength = aniso_pos.x; break; + case POS_Y: strength = aniso_pos.y; break; + case POS_Z: strength = aniso_pos.z; break; + case NEG_X: strength = aniso_neg.x; break; + case NEG_Y: strength = aniso_neg.y; break; + case NEG_Z: strength = aniso_neg.z; break; + } + + color_interp.xyz *= strength; + +#else + color_interp = texelFetch(sampler3D(color_tex, tex_sampler), ivec3(posu), int(params.level)); + color_interp.xyz *params.dynamic_range; + +#endif + +#endif + float scale = (1 << params.level); + + gl_Position = params.projection * vec4((vec3(posu) + vertex) * scale, 1.0); + +#ifdef MODE_DEBUG_LIGHT_FULL + if (color_interp.a == 0.0) { + gl_Position = vec4(0.0); //force clip and not draw + } +#else + color_interp.a = params.alpha; +#endif +} + +/* clang-format off */ +[fragment] + +#version 450 + +VERSION_DEFINES + +layout(location = 0) in vec4 color_interp; +/* clang-format on */ +layout(location = 0) out vec4 frag_color; + +void main() { + + frag_color = color_interp; + +#ifdef MODE_DEBUG_LIGHT_FULL + + //there really is no alpha, so use dither + + int x = int(gl_FragCoord.x) % 4; + int y = int(gl_FragCoord.y) % 4; + int index = x + y * 4; + float limit = 0.0; + if (x < 8) { + if (index == 0) limit = 0.0625; + if (index == 1) limit = 0.5625; + if (index == 2) limit = 0.1875; + if (index == 3) limit = 0.6875; + if (index == 4) limit = 0.8125; + if (index == 5) limit = 0.3125; + if (index == 6) limit = 0.9375; + if (index == 7) limit = 0.4375; + if (index == 8) limit = 0.25; + if (index == 9) limit = 0.75; + if (index == 10) limit = 0.125; + if (index == 11) limit = 0.625; + if (index == 12) limit = 1.0; + if (index == 13) limit = 0.5; + if (index == 14) limit = 0.875; + if (index == 15) limit = 0.375; + } + if (frag_color.a < limit) { + discard; + } +#endif +} |