diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl')
| -rw-r--r-- | indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl new file mode 100644 index 0000000000..6791a22a76 --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl @@ -0,0 +1,204 @@ +/** + * @file class1\environment\pbrterrainV.glsl + * + * $LicenseInfo:firstyear=2023&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2023, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#define TERRAIN_PBR_DETAIL_EMISSIVE 0 +#define TERRAIN_PBR_DETAIL_OCCLUSION -1 +#define TERRAIN_PBR_DETAIL_NORMAL -2 +#define TERRAIN_PBR_DETAIL_METALLIC_ROUGHNESS -3 + +#define TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE 0 +#define TERRAIN_PAINT_TYPE_PBR_PAINTMAP 1 + +uniform mat3 normal_matrix; +uniform mat4 texture_matrix0; +uniform mat4 modelview_matrix; +uniform mat4 modelview_projection_matrix; +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_PBR_PAINTMAP +uniform float region_scale; +#endif + +in vec3 position; +in vec3 normal; +in vec4 tangent; +in vec4 diffuse_color; +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE +in vec2 texcoord1; +#endif + +out vec3 vary_position; +out vec3 vary_normal; +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 +out vec3 vary_vertex_normal; // Used by pbrterrainUtilF.glsl +#endif +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) +out vec3 vary_tangents[4]; +flat out float vary_signs[4]; +#endif + +// vary_texcoord* are used for terrain composition, vary_coords are used for terrain UVs +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE +out vec4 vary_texcoord0; +out vec4 vary_texcoord1; +#elif TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_PBR_PAINTMAP +out vec2 vary_texcoord; +#endif +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 +out vec4[10] vary_coords; +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 +out vec4[2] vary_coords; +#endif + +// *HACK: Each material uses only one texture transform, but the KHR texture +// transform spec allows handling texture transforms separately for each +// individual texture info. +uniform vec4[5] terrain_texture_transforms; + +vec2 terrain_texture_transform(vec2 vertex_texcoord, vec4[2] khr_gltf_transform); +vec4 terrain_tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform); + +void main() +{ + //transform vertex + gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); + vary_position = (modelview_matrix*vec4(position.xyz, 1.0)).xyz; + + vec3 n = normal_matrix * normal; +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + vary_vertex_normal = normal; +#endif + vec3 t = normal_matrix * tangent.xyz; + +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) + { + vec4[2] ttt; + vec4 transformed_tangent; + // material 1 + ttt[0].xyz = terrain_texture_transforms[0].xyz; + ttt[1].x = terrain_texture_transforms[0].w; + ttt[1].y = terrain_texture_transforms[1].x; + transformed_tangent = terrain_tangent_space_transform(vec4(t, tangent.w), n, ttt); + vary_tangents[0] = normalize(transformed_tangent.xyz); + vary_signs[0] = transformed_tangent.w; + // material 2 + ttt[0].xyz = terrain_texture_transforms[1].yzw; + ttt[1].xy = terrain_texture_transforms[2].xy; + transformed_tangent = terrain_tangent_space_transform(vec4(t, tangent.w), n, ttt); + vary_tangents[1] = normalize(transformed_tangent.xyz); + vary_signs[1] = transformed_tangent.w; + // material 3 + ttt[0].xy = terrain_texture_transforms[2].zw; + ttt[0].z = terrain_texture_transforms[3].x; + ttt[1].xy = terrain_texture_transforms[3].yz; + transformed_tangent = terrain_tangent_space_transform(vec4(t, tangent.w), n, ttt); + vary_tangents[2] = normalize(transformed_tangent.xyz); + vary_signs[2] = transformed_tangent.w; + // material 4 + ttt[0].x = terrain_texture_transforms[3].w; + ttt[0].yz = terrain_texture_transforms[4].xy; + ttt[1].xy = terrain_texture_transforms[4].zw; + transformed_tangent = terrain_tangent_space_transform(vec4(t, tangent.w), n, ttt); + vary_tangents[3] = normalize(transformed_tangent.xyz); + vary_signs[3] = transformed_tangent.w; + } +#endif + vary_normal = normalize(n); + + // Transform and pass tex coords + { + vec4[2] ttt; +#define transform_xy() terrain_texture_transform(position.xy, ttt) +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 +// Don't care about upside-down (transform_xy_flipped()) +#define transform_yz() terrain_texture_transform(position.yz, ttt) +#define transform_negx_z() terrain_texture_transform(position.xz * vec2(-1, 1), ttt) +#define transform_yz_flipped() terrain_texture_transform(position.yz * vec2(-1, 1), ttt) +#define transform_negx_z_flipped() terrain_texture_transform(position.xz, ttt) + // material 1 + ttt[0].xyz = terrain_texture_transforms[0].xyz; + ttt[1].x = terrain_texture_transforms[0].w; + ttt[1].y = terrain_texture_transforms[1].x; + vary_coords[0].xy = transform_xy(); + vary_coords[0].zw = transform_yz(); + vary_coords[1].xy = transform_negx_z(); + vary_coords[1].zw = transform_yz_flipped(); + vary_coords[2].xy = transform_negx_z_flipped(); + // material 2 + ttt[0].xyz = terrain_texture_transforms[1].yzw; + ttt[1].xy = terrain_texture_transforms[2].xy; + vary_coords[2].zw = transform_xy(); + vary_coords[3].xy = transform_yz(); + vary_coords[3].zw = transform_negx_z(); + vary_coords[4].xy = transform_yz_flipped(); + vary_coords[4].zw = transform_negx_z_flipped(); + // material 3 + ttt[0].xy = terrain_texture_transforms[2].zw; + ttt[0].z = terrain_texture_transforms[3].x; + ttt[1].xy = terrain_texture_transforms[3].yz; + vary_coords[5].xy = transform_xy(); + vary_coords[5].zw = transform_yz(); + vary_coords[6].xy = transform_negx_z(); + vary_coords[6].zw = transform_yz_flipped(); + vary_coords[7].xy = transform_negx_z_flipped(); + // material 4 + ttt[0].x = terrain_texture_transforms[3].w; + ttt[0].yz = terrain_texture_transforms[4].xy; + ttt[1].xy = terrain_texture_transforms[4].zw; + vary_coords[7].zw = transform_xy(); + vary_coords[8].xy = transform_yz(); + vary_coords[8].zw = transform_negx_z(); + vary_coords[9].xy = transform_yz_flipped(); + vary_coords[9].zw = transform_negx_z_flipped(); +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 + // material 1 + ttt[0].xyz = terrain_texture_transforms[0].xyz; + ttt[1].x = terrain_texture_transforms[0].w; + ttt[1].y = terrain_texture_transforms[1].x; + vary_coords[0].xy = transform_xy(); + // material 2 + ttt[0].xyz = terrain_texture_transforms[1].yzw; + ttt[1].xy = terrain_texture_transforms[2].xy; + vary_coords[0].zw = transform_xy(); + // material 3 + ttt[0].xy = terrain_texture_transforms[2].zw; + ttt[0].z = terrain_texture_transforms[3].x; + ttt[1].xy = terrain_texture_transforms[3].yz; + vary_coords[1].xy = transform_xy(); + // material 4 + ttt[0].x = terrain_texture_transforms[3].w; + ttt[0].yz = terrain_texture_transforms[4].xy; + ttt[1].xy = terrain_texture_transforms[4].zw; + vary_coords[1].zw = transform_xy(); +#endif + } + +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE + vec2 tc = texcoord1.xy; + vary_texcoord0.zw = tc.xy; + vary_texcoord1.xy = tc.xy-vec2(2.0, 0.0); + vary_texcoord1.zw = tc.xy-vec2(1.0, 0.0); +#elif TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_PBR_PAINTMAP + vary_texcoord = position.xy / region_scale; +#endif +} |