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/**
* @file class1\deferred\pbralphaV.glsl
*
* $LicenseInfo:firstyear=2022&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2022, 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
* $/LicenseInfo$
*/
#ifndef IS_HUD
// default alpha implementation
#ifdef HAS_SKIN
uniform mat4 modelview_matrix;
uniform mat4 projection_matrix;
mat4 getObjectSkinnedTransform();
#else
uniform mat3 normal_matrix;
uniform mat4 modelview_projection_matrix;
#endif
uniform mat4 texture_matrix0;
#if !defined(HAS_SKIN)
uniform mat4 modelview_matrix;
#endif
out vec3 vary_position;
uniform vec4[2] texture_base_color_transform;
uniform vec4[2] texture_normal_transform;
uniform vec4[2] texture_metallic_roughness_transform;
uniform vec4[2] texture_emissive_transform;
out vec3 vary_fragcoord;
uniform float near_clip;
in vec3 position;
in vec4 diffuse_color;
in vec3 normal;
in vec4 tangent;
in vec2 texcoord0;
out vec2 base_color_texcoord;
out vec2 normal_texcoord;
out vec2 metallic_roughness_texcoord;
out vec2 emissive_texcoord;
out vec4 vertex_color;
out vec3 vary_tangent;
flat out float vary_sign;
out vec3 vary_normal;
vec2 texture_transform(vec2 vertex_texcoord, vec4[2] khr_gltf_transform, mat4 sl_animation_transform);
vec3 tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform, mat4 sl_animation_transform);
void main()
{
#ifdef HAS_SKIN
mat4 mat = getObjectSkinnedTransform();
mat = modelview_matrix * mat;
vec3 pos = (mat*vec4(position.xyz,1.0)).xyz;
vary_position = pos;
vec4 vert = projection_matrix * vec4(pos,1.0);
#else
//transform vertex
vec4 vert = modelview_projection_matrix * vec4(position.xyz, 1.0);
#endif
gl_Position = vert;
vary_fragcoord.xyz = vert.xyz + vec3(0,0,near_clip);
base_color_texcoord = texture_transform(texcoord0, texture_base_color_transform, texture_matrix0);
normal_texcoord = texture_transform(texcoord0, texture_normal_transform, texture_matrix0);
metallic_roughness_texcoord = texture_transform(texcoord0, texture_metallic_roughness_transform, texture_matrix0);
emissive_texcoord = texture_transform(texcoord0, texture_emissive_transform, texture_matrix0);
#ifdef HAS_SKIN
vec3 n = (mat*vec4(normal.xyz+position.xyz,1.0)).xyz-pos.xyz;
vec3 t = (mat*vec4(tangent.xyz+position.xyz,1.0)).xyz-pos.xyz;
#else //HAS_SKIN
vec3 n = normal_matrix * normal;
vec3 t = normal_matrix * tangent.xyz;
#endif //HAS_SKIN
n = normalize(n);
vary_tangent = normalize(tangent_space_transform(vec4(t, tangent.w), n, texture_normal_transform, texture_matrix0));
vary_sign = tangent.w;
vary_normal = n;
vertex_color = diffuse_color;
#if !defined(HAS_SKIN)
vary_position = (modelview_matrix*vec4(position.xyz, 1.0)).xyz;
#endif
}
#else
// fullbright HUD alpha implementation
uniform mat4 modelview_projection_matrix;
uniform mat4 texture_matrix0;
uniform mat4 modelview_matrix;
out vec3 vary_position;
uniform vec4[2] texture_base_color_transform;
uniform vec4[2] texture_emissive_transform;
in vec3 position;
in vec4 diffuse_color;
in vec2 texcoord0;
out vec2 base_color_texcoord;
out vec2 emissive_texcoord;
out vec4 vertex_color;
vec2 texture_transform(vec2 vertex_texcoord, vec4[2] khr_gltf_transform, mat4 sl_animation_transform);
void main()
{
//transform vertex
vec4 vert = modelview_projection_matrix * vec4(position.xyz, 1.0);
gl_Position = vert;
vary_position = vert.xyz;
base_color_texcoord = texture_transform(texcoord0, texture_base_color_transform, texture_matrix0);
emissive_texcoord = texture_transform(texcoord0, texture_emissive_transform, texture_matrix0);
vertex_color = diffuse_color;
}
#endif
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