peytonplayz585-shadow-4.0/desktopRuntime/resources/assets/eagler/glsl/deferred/skybox_render.vsh
2024-04-11 17:18:30 -04:00

52 lines
1.7 KiB
GLSL

#line 2
/*
* Copyright (c) 2023 lax1dude. All Rights Reserved.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
precision lowp int;
precision highp float;
precision highp sampler2D;
layout(location = 0) in vec3 a_position3f;
layout(location = 1) in vec2 a_colorIndex2f;
out vec3 v_position3f;
out vec3 v_color3f;
uniform mat4 u_viewMatrix4f;
#ifdef COMPILE_PARABOLOID_SKY
uniform float u_farPlane1f;
#else
uniform mat4 u_projMatrix4f;
#endif
uniform sampler2D u_renderedAtmosphere;
void main() {
v_position3f = a_position3f;
v_color3f = textureLod(u_renderedAtmosphere, a_colorIndex2f, 0.0).rgb;
vec4 pos = u_viewMatrix4f * vec4(a_position3f, 0.0);
#ifdef COMPILE_PARABOLOID_SKY
float dist = pos.z;
pos.xyz = normalize(pos.xyz);
pos.xy /= 1.0 - pos.z;
pos.z = dist / u_farPlane1f;
gl_Position = vec4(pos.xyz, 1.0);
#else
gl_Position = u_projMatrix4f * vec4(pos.xyz, 1.0);
#endif
}