diff options
Diffstat (limited to 'source/blender/gpu/shaders/gpu_shader_geometry.glsl')
| -rw-r--r-- | source/blender/gpu/shaders/gpu_shader_geometry.glsl | 140 |
1 files changed, 71 insertions, 69 deletions
diff --git a/source/blender/gpu/shaders/gpu_shader_geometry.glsl b/source/blender/gpu/shaders/gpu_shader_geometry.glsl index 705b79cbf56..f62040589e5 100644 --- a/source/blender/gpu/shaders/gpu_shader_geometry.glsl +++ b/source/blender/gpu/shaders/gpu_shader_geometry.glsl @@ -7,9 +7,11 @@ uniform int osd_active_uv_offset; layout(lines_adjacency) in; layout(triangle_strip, max_vertices = 4) out; -in block { - VertexData v; -} inpt[]; +in block +{ + VertexData v; +} +inpt[]; /* compatibility */ out vec3 varnormal; @@ -18,98 +20,98 @@ out vec3 varposition; uniform bool osd_flat_shading; uniform int osd_fvar_count; -#define INTERP_FACE_VARYING_2(result, fvarOffset, tessCoord) \ - { \ - vec2 v[4]; \ - int primOffset = (gl_PrimitiveID + PrimitiveIdBase) * 4; \ - for (int i = 0; i < 4; ++i) { \ - int index = (primOffset + i) * osd_fvar_count + fvarOffset; \ - v[i] = vec2(texelFetch(FVarDataBuffer, index).s, \ - texelFetch(FVarDataBuffer, index + 1).s); \ - } \ - result = mix(mix(v[0], v[1], tessCoord.s), \ - mix(v[3], v[2], tessCoord.s), \ - tessCoord.t); \ - } - -# define INTERP_FACE_VARYING_ATT_2(result, fvarOffset, tessCoord) \ - { \ - vec2 tmp; \ - INTERP_FACE_VARYING_2(tmp, fvarOffset, tessCoord); \ - result = vec3(tmp, 0); \ - } +#define INTERP_FACE_VARYING_2(result, fvarOffset, tessCoord) \ + { \ + vec2 v[4]; \ + int primOffset = (gl_PrimitiveID + PrimitiveIdBase) * 4; \ + for (int i = 0; i < 4; ++i) { \ + int index = (primOffset + i) * osd_fvar_count + fvarOffset; \ + v[i] = vec2(texelFetch(FVarDataBuffer, index).s, texelFetch(FVarDataBuffer, index + 1).s); \ + } \ + result = mix(mix(v[0], v[1], tessCoord.s), mix(v[3], v[2], tessCoord.s), tessCoord.t); \ + } + +#define INTERP_FACE_VARYING_ATT_2(result, fvarOffset, tessCoord) \ + { \ + vec2 tmp; \ + INTERP_FACE_VARYING_2(tmp, fvarOffset, tessCoord); \ + result = vec3(tmp, 0); \ + } uniform samplerBuffer FVarDataBuffer; uniform isamplerBuffer FVarDataOffsetBuffer; -out block { - VertexData v; -} outpt; +out block +{ + VertexData v; +} +outpt; void set_mtface_vertex_attrs(vec2 st); void emit_flat(int index, vec3 normal) { - outpt.v.position = inpt[index].v.position; - outpt.v.normal = normal; + outpt.v.position = inpt[index].v.position; + outpt.v.normal = normal; - /* Compatibility */ - varnormal = outpt.v.normal; - varposition = outpt.v.position.xyz; + /* Compatibility */ + varnormal = outpt.v.normal; + varposition = outpt.v.position.xyz; - /* TODO(sergey): Only uniform subdivisions atm. */ - vec2 quadst[4] = vec2[](vec2(0, 0), vec2(1, 0), vec2(1, 1), vec2(0, 1)); - vec2 st = quadst[index]; + /* TODO(sergey): Only uniform subdivisions atm. */ + vec2 quadst[4] = vec2[](vec2(0, 0), vec2(1, 0), vec2(1, 1), vec2(0, 1)); + vec2 st = quadst[index]; - INTERP_FACE_VARYING_2(outpt.v.uv, osd_active_uv_offset, st); + INTERP_FACE_VARYING_2(outpt.v.uv, osd_active_uv_offset, st); - set_mtface_vertex_attrs(st); + set_mtface_vertex_attrs(st); - gl_Position = ProjectionMatrix * inpt[index].v.position; - EmitVertex(); + gl_Position = ProjectionMatrix * inpt[index].v.position; + EmitVertex(); } void emit_smooth(int index) { - outpt.v.position = inpt[index].v.position; - outpt.v.normal = inpt[index].v.normal; + outpt.v.position = inpt[index].v.position; + outpt.v.normal = inpt[index].v.normal; - /* Compatibility */ - varnormal = outpt.v.normal; - varposition = outpt.v.position.xyz; + /* Compatibility */ + varnormal = outpt.v.normal; + varposition = outpt.v.position.xyz; - /* TODO(sergey): Only uniform subdivisions atm. */ - vec2 quadst[4] = vec2[](vec2(0, 0), vec2(1, 0), vec2(1, 1), vec2(0, 1)); - vec2 st = quadst[index]; + /* TODO(sergey): Only uniform subdivisions atm. */ + vec2 quadst[4] = vec2[](vec2(0, 0), vec2(1, 0), vec2(1, 1), vec2(0, 1)); + vec2 st = quadst[index]; - INTERP_FACE_VARYING_2(outpt.v.uv, osd_active_uv_offset, st); + INTERP_FACE_VARYING_2(outpt.v.uv, osd_active_uv_offset, st); - set_mtface_vertex_attrs(st); + set_mtface_vertex_attrs(st); - gl_Position = ProjectionMatrix * inpt[index].v.position; - EmitVertex(); + gl_Position = ProjectionMatrix * inpt[index].v.position; + EmitVertex(); } void main() { - gl_PrimitiveID = gl_PrimitiveIDIn; - - if (osd_flat_shading) { - vec3 A = (inpt[0].v.position - inpt[1].v.position).xyz; - vec3 B = (inpt[3].v.position - inpt[1].v.position).xyz; - vec3 flat_normal = normalize(cross(B, A)); - emit_flat(0, flat_normal); - emit_flat(1, flat_normal); - emit_flat(3, flat_normal); - emit_flat(2, flat_normal); - } - else { - emit_smooth(0); - emit_smooth(1); - emit_smooth(3); - emit_smooth(2); - } - EndPrimitive(); + gl_PrimitiveID = gl_PrimitiveIDIn; + + if (osd_flat_shading) { + vec3 A = (inpt[0].v.position - inpt[1].v.position).xyz; + vec3 B = (inpt[3].v.position - inpt[1].v.position).xyz; + vec3 flat_normal = normalize(cross(B, A)); + emit_flat(0, flat_normal); + emit_flat(1, flat_normal); + emit_flat(3, flat_normal); + emit_flat(2, flat_normal); + } + else { + emit_smooth(0); + emit_smooth(1); + emit_smooth(3); + emit_smooth(2); + } + EndPrimitive(); } -void set_mtface_vertex_attrs(vec2 st) { +void set_mtface_vertex_attrs(vec2 st) +{ |