openmw/files/shaders/compatibility/water.vert

#version 120

#include "lib/core/vertex.h.glsl"

varying vec4  position;
varying float linearDepth;

#include "shadows_vertex.glsl"
#include "lib/view/depth.glsl"

uniform vec3 nodePosition;
uniform vec3 playerPos;

varying vec3 worldPos;
varying vec2 rippleMapUV;

void main(void)
{
    gl_Position = modelToClip(gl_Vertex);

    position = gl_Vertex;

    worldPos = position.xyz + nodePosition.xyz;
    rippleMapUV = (worldPos.xy - playerPos.xy + (@ripple_map_size * @ripple_map_world_scale / 2.0)) / @ripple_map_size / @ripple_map_world_scale;

    vec4 viewPos = modelToView(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
shade refactor 2023-02-25 19:03:39 +00:00			`#include "lib/core/vertex.h.glsl"`
enable shaders path and dehardcode depth formats 2021-07-09 17:05:27 +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			`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"`
shade refactor 2023-02-25 19:03:39 +00:00			`#include "lib/view/depth.glsl"`
Add (potentially physically-flawed) shadow support to the water shader 2017-10-30 20:06:52 +00:00
Implement shader-based water ripples (feature 3537) 2023-04-01 05:09:45 +00:00			`uniform vec3 nodePosition;`
			`uniform vec3 playerPos;`

			`varying vec3 worldPos;`
			`varying vec2 rippleMapUV;`

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)`
			`{`
shade refactor 2023-02-25 19:03:39 +00:00			`gl_Position = modelToClip(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;`

Implement shader-based water ripples (feature 3537) 2023-04-01 05:09:45 +00:00			`worldPos = position.xyz + nodePosition.xyz;`
			`rippleMapUV = (worldPos.xy - playerPos.xy + (@ripple_map_size * @ripple_map_world_scale / 2.0)) / @ripple_map_size / @ripple_map_world_scale;`

shade refactor 2023-02-25 19:03:39 +00:00			`vec4 viewPos = modelToView(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			`}`