OpenMW/files/shaders/water_vertex.glsl

#version 120

uniform mat4 projectionMatrix;

varying vec4  position;
varying float linearDepth;

#include "shadows_vertex.glsl"
#include "depth.glsl"

void main(void)
{
    gl_Position = projectionMatrix * (gl_ModelViewMatrix * gl_Vertex);

    position = gl_Vertex;

    vec4 viewPos = gl_ModelViewMatrix * gl_Vertex;
    linearDepth = getLinearDepth(gl_Position.z, viewPos.z);

    setupShadowCoords(viewPos, normalize((gl_NormalMatrix * gl_Normal).xyz));
}
New water WIP Changes compared to old (Ogre) water: - Uses depth-texture readback to handle the underwater fog in the water shader, instead of handling it in the object shader - Different clipping mechanism (glClipPlane instead of a skewed viewing frustum) - Fixed bug where the reflection camera would look strange when the viewer was very close to the water surface - Toned down light scattering, made the waterColor a bit darker at night - Fixed flipped water normals and strange resulting logic in the shader Still to do: see comments... 2015-10-26 20:36:19 +00:00			`#version 120`
enable shaders path and dehardcode depth formats 2021-07-09 17:05:27 +00:00
			`uniform mat4 projectionMatrix;`

New water WIP Changes compared to old (Ogre) water: - Uses depth-texture readback to handle the underwater fog in the water shader, instead of handling it in the object shader - Different clipping mechanism (glClipPlane instead of a skewed viewing frustum) - Fixed bug where the reflection camera would look strange when the viewer was very close to the water surface - Toned down light scattering, made the waterColor a bit darker at night - Fixed flipped water normals and strange resulting logic in the shader Still to do: see comments... 2015-10-26 20:36:19 +00:00			`varying vec4 position;`
Support for radial fog (feature #4708) 2020-03-14 12:39:32 +00:00			`varying float linearDepth;`
New water WIP Changes compared to old (Ogre) water: - Uses depth-texture readback to handle the underwater fog in the water shader, instead of handling it in the object shader - Different clipping mechanism (glClipPlane instead of a skewed viewing frustum) - Fixed bug where the reflection camera would look strange when the viewer was very close to the water surface - Toned down light scattering, made the waterColor a bit darker at night - Fixed flipped water normals and strange resulting logic in the shader Still to do: see comments... 2015-10-26 20:36:19 +00:00
Move common shadow code to shared shadow shader headers 2018-06-24 22:40:52 +00:00			`#include "shadows_vertex.glsl"`
initial reverse-z depth implementation 2021-06-01 19:15:25 +00:00			`#include "depth.glsl"`
Add (potentially physically-flawed) shadow support to the water shader 2017-10-30 20:06:52 +00:00
New water WIP Changes compared to old (Ogre) water: - Uses depth-texture readback to handle the underwater fog in the water shader, instead of handling it in the object shader - Different clipping mechanism (glClipPlane instead of a skewed viewing frustum) - Fixed bug where the reflection camera would look strange when the viewer was very close to the water surface - Toned down light scattering, made the waterColor a bit darker at night - Fixed flipped water normals and strange resulting logic in the shader Still to do: see comments... 2015-10-26 20:36:19 +00:00			`void main(void)`
			`{`
enable shaders path and dehardcode depth formats 2021-07-09 17:05:27 +00:00			`gl_Position = projectionMatrix * (gl_ModelViewMatrix * gl_Vertex);`
New water WIP Changes compared to old (Ogre) water: - Uses depth-texture readback to handle the underwater fog in the water shader, instead of handling it in the object shader - Different clipping mechanism (glClipPlane instead of a skewed viewing frustum) - Fixed bug where the reflection camera would look strange when the viewer was very close to the water surface - Toned down light scattering, made the waterColor a bit darker at night - Fixed flipped water normals and strange resulting logic in the shader Still to do: see comments... 2015-10-26 20:36:19 +00:00
			`position = gl_Vertex;`

initial reverse-z depth implementation 2021-06-01 19:15:25 +00:00			`vec4 viewPos = gl_ModelViewMatrix * gl_Vertex;`
enable shaders path and dehardcode depth formats 2021-07-09 17:05:27 +00:00			`linearDepth = getLinearDepth(gl_Position.z, viewPos.z);`
Add (potentially physically-flawed) shadow support to the water shader 2017-10-30 20:06:52 +00:00
initial reverse-z depth implementation 2021-06-01 19:15:25 +00:00			`setupShadowCoords(viewPos, normalize((gl_NormalMatrix * gl_Normal).xyz));`
New water WIP Changes compared to old (Ogre) water: - Uses depth-texture readback to handle the underwater fog in the water shader, instead of handling it in the object shader - Different clipping mechanism (glClipPlane instead of a skewed viewing frustum) - Fixed bug where the reflection camera would look strange when the viewer was very close to the water surface - Toned down light scattering, made the waterColor a bit darker at night - Fixed flipped water normals and strange resulting logic in the shader Still to do: see comments... 2015-10-26 20:36:19 +00:00			`}`