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Add initial prototype.

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This commit is contained in:
Rod Kay
2022-07-31 17:34:54 +10:00
commit 54a53b2ac0
1421 changed files with 358874 additions and 0 deletions
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#version 140
in vec4 frag_Color;
out vec4 final_Color;
void
main()
{
final_Color = frag_Color;
}

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3-mid/opengl/assets/shader/colored.vert Normal file
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#version 140
uniform mat4 mvp_Transform;
uniform vec3 Scale;
in vec3 Site;
in vec4 Color;
out vec3 frag_Site;
out vec4 frag_Color;
void main()
{
// Pass some variables to the fragment shader.
//
frag_Site = Site;
frag_Color = Color;
// Apply all matrix transformations to 'Site'.
//
gl_Position = mvp_Transform * vec4 (Site * Scale, 1);
}

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3-mid/opengl/assets/shader/colored_textured.frag Normal file
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#version 140
uniform sampler2D sTexture;
varying vec4 vColor;
varying vec2 vCoords;
void main()
{
gl_FragColor = mix (texture2D (sTexture, vCoords),
vColor,
0.5);
}

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3-mid/opengl/assets/shader/colored_textured.vert Normal file
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#version 140
uniform mat4 mvp_Transform;
uniform vec3 Scale;
attribute vec3 Site;
attribute vec4 Color;
attribute vec2 Coords;
varying vec4 vColor;
varying vec2 vCoords;
void main()
{
gl_Position = mvp_Transform * vec4 (Site * Scale, 1.0);
vColor = Color;
vCoords = Coords;
}

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3-mid/opengl/assets/shader/lit_colored.frag Normal file
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#version 140
struct light
{
vec4 Site;
vec3 Color;
float Attenuation;
float ambient_Coefficient;
float cone_Angle;
vec3 cone_Direction;
};
uniform mat4 model_Transform;
uniform mat3 inverse_model_Rotation;
uniform vec3 camera_Site;
uniform vec3 specular_Color; // The materials specular color.
uniform int light_Count;
uniform light Lights [10];
in vec3 frag_Site;
in vec3 frag_Normal;
in vec4 frag_Color;
in float frag_Shine;
out vec4 final_Color;
vec3
apply_Light (light Light,
vec3 surface_Color,
vec3 Normal,
vec3 surface_Site,
vec3 Surface_to_Camera)
{
vec3 Surface_to_Light;
float Attenuation = 1.0;
if (Light.Site.w == 0.0)
{
// Directional light.
//
Surface_to_Light = normalize (-Light.Site.xyz);
Attenuation = 1.0; // No attenuation for directional lights.
}
else
{
// Point light.
//
vec3 Surface_to_Light_vector = Light.Site.xyz - surface_Site;
float Distance_to_Light = length (Surface_to_Light_vector);
Surface_to_Light = normalize (Surface_to_Light_vector);
Attenuation = 1.0
/ ( 1.0
+ Light.Attenuation
* pow (Distance_to_Light, 2));
// Cone restrictions which affects attenuation.
//
float Light_to_Surface_Angle = degrees (acos (dot (-Surface_to_Light,
normalize (Light.cone_Direction))));
if (Light_to_Surface_Angle > Light.cone_Angle)
{
Attenuation = 0.0;
}
}
vec3 lit_surface_Color = surface_Color * Light.Color;
vec3 Ambient = Light.ambient_Coefficient * lit_surface_Color;
float diffuse_Coefficient = max (0.0,
dot (Normal,
Surface_to_Light));
vec3 Diffuse = diffuse_Coefficient * lit_surface_Color;
float specular_Coefficient = 0.0;
if (diffuse_Coefficient > 0.0)
specular_Coefficient = pow (max (0.0,
dot (Surface_to_Camera,
reflect (-Surface_to_Light,
Normal))),
frag_Shine);
vec3 Specular = specular_Coefficient * specular_Color * Light.Color;
return Ambient + Attenuation * (Diffuse + Specular); // Linear color (before gamma correction).
}
void
main()
{
vec3 surface_Site = vec3 ( model_Transform
* vec4 (frag_Site, 1));
vec4 surface_Color = frag_Color;
vec3 Surface_to_Camera = normalize (camera_Site - surface_Site);
vec3 Normal = normalize ( frag_Normal
* inverse_model_Rotation);
// Combine color from all the lights.
//
vec3 linear_Color = vec3 (0);
for (int i = 0; i < light_Count; ++i)
{
linear_Color += apply_Light (Lights [i],
surface_Color.rgb,
Normal,
surface_Site,
Surface_to_Camera);
}
vec3 Gamma = vec3 (1.0 / 2.2);
final_Color = vec4 (pow (linear_Color, // Final color (after gamma correction).
Gamma),
surface_Color.a);
}

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3-mid/opengl/assets/shader/lit_colored.vert Normal file
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#version 140
uniform mat4 mvp_Transform;
uniform vec3 Scale;
in vec3 Site;
in vec3 Normal;
in vec4 Color;
in float Shine;
out vec3 frag_Site;
out vec3 frag_Normal;
out vec4 frag_Color;
out float frag_Shine;
void main()
{
// Pass some variables to the fragment shader.
//
frag_Site = Site;
frag_Normal = Normal;
frag_Color = Color;
frag_Shine = Shine;
// Apply all matrix transformations to 'Site'.
//
gl_Position = mvp_Transform * vec4 (Site * Scale, 1);
}

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3-mid/opengl/assets/shader/lit_colored_skinned.frag Normal file
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#version 140
struct light
{
vec4 Site;
vec3 Color;
float Attenuation;
float ambient_Coefficient;
float cone_Angle;
vec3 cone_Direction;
};
uniform mat4 model_Transform;
uniform mat3 inverse_model_Rotation;
uniform vec3 camera_Site;
uniform vec3 specular_Color; // The materials specular color.
uniform sampler2D Texture;
uniform int light_Count;
uniform light Lights [10];
in vec3 frag_Site;
in vec3 frag_Normal;
in vec4 frag_Color;
in vec2 frag_Coords;
in float frag_Shine;
out vec4 final_Color;
vec3
apply_Light (light Light,
vec3 surface_Color,
vec3 Normal,
vec3 surface_Site,
vec3 Surface_to_Camera)
{
vec3 Surface_to_Light;
float Attenuation = 1.0;
if (Light.Site.w == 0.0)
{
// Directional light.
//
Surface_to_Light = normalize (-Light.Site.xyz);
Attenuation = 1.0; // No attenuation for directional lights.
}
else
{
// Point light.
//
vec3 Surface_to_Light_vector = Light.Site.xyz - surface_Site;
float Distance_to_Light = length (Surface_to_Light_vector);
Surface_to_Light = normalize (Surface_to_Light_vector);
Attenuation = 1.0
/ ( 1.0
+ Light.Attenuation
* pow (Distance_to_Light, 2));
// Cone restrictions which affects attenuation.
//
float Light_to_Surface_Angle = degrees (acos (dot (-Surface_to_Light,
normalize (Light.cone_Direction))));
if (Light_to_Surface_Angle > Light.cone_Angle)
{
Attenuation = 0.0;
}
}
vec3 lit_surface_Color = surface_Color * Light.Color;
vec3 Ambient = Light.ambient_Coefficient * lit_surface_Color;
float diffuse_Coefficient = max (0.0,
dot (Normal,
Surface_to_Light));
vec3 Diffuse = diffuse_Coefficient * lit_surface_Color;
float specular_Coefficient = 0.0;
if (diffuse_Coefficient > 0.0)
specular_Coefficient = pow (max (0.0,
dot (Surface_to_Camera,
reflect (-Surface_to_Light,
Normal))),
frag_Shine);
vec3 Specular = specular_Coefficient * specular_Color * Light.Color;
return Ambient + Attenuation * (Diffuse + Specular); // Linear color (before gamma correction).
}
void
main()
{
vec3 surface_Site = vec3 ( model_Transform
* vec4 (frag_Site, 1));
vec4 surface_Color = ( texture (Texture, frag_Coords)
+ frag_Color)
/ 2.0;
vec3 Surface_to_Camera = normalize (camera_Site - surface_Site);
vec3 Normal = normalize ( frag_Normal
* inverse_model_Rotation);
// Combine color from all the lights.
//
vec3 linear_Color = vec3 (0);
for (int i = 0; i < light_Count; ++i)
{
linear_Color += apply_Light (Lights [i],
surface_Color.rgb,
Normal,
surface_Site,
Surface_to_Camera);
}
vec3 Gamma = vec3 (1.0 / 2.2);
final_Color = vec4 (pow (linear_Color, // Final color (after gamma correction).
Gamma),
surface_Color.a);
}

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3-mid/opengl/assets/shader/lit_colored_skinned.vert Normal file
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#version 140
uniform mat4 mvp_Transform;
uniform vec3 Scale;
uniform mat4 bone_Matrices[120];
in vec3 Site;
in vec3 Normal;
in vec4 Color;
in vec2 Coords;
in float Shine;
in vec4 bone_Ids;
in vec4 bone_Weights;
out vec3 frag_Site;
out vec3 frag_Normal;
out vec4 frag_Color;
out vec2 frag_Coords;
out float frag_Shine;
const float c_zero = 0.0;
const float c_one = 1.0;
void main()
{
vec4 transformedPosition = vec4 (0.0);
vec3 transformedNormal = vec3 (0.0);
if (int (bone_Ids.x) == 0) // No bones affect this vertex.
{
transformedPosition = vec4 (Site, c_one);
transformedNormal = Normal;
}
else
{
// Bone 1.
//
mat4 m44 = bone_Matrices [int (bone_Ids.x) - 1];
// Transform the offset by bone 1.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.x;
mat3 m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 1.
transformedNormal += m33 * Normal * bone_Weights.x;
if (int (bone_Ids.y) != 0)
{
// Bone 2.
//
m44 = bone_Matrices [int (bone_Ids.y) - 1];
// Transform the offset by bone 2.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.y;
m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 2.
transformedNormal += m33 * Normal * bone_Weights.y;
if (int (bone_Ids.z) != 0)
{
// Bone 3.
//
m44 = bone_Matrices [int (bone_Ids.z) - 1];
// Transform the offset by bone 3.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.z;
m33 = mat3(m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 3.
transformedNormal += m33 * Normal * bone_Weights.z;
if (int (bone_Ids.w) != 0)
{
// Bone 4.
//
m44 = bone_Matrices [int (bone_Ids.w) - 1];
// Transform the offset by bone 4.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.w;
m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 4.
transformedNormal += m33 * Normal * bone_Weights.w;
}
}
}
}
// Pass some variables to the fragment shader.
//
frag_Site = Site;
frag_Normal = normalize (transformedNormal);
frag_Color = Color;
frag_Coords = Coords;
frag_Shine = Shine;
// Apply all matrix transformations to 'Site'.
//
gl_Position = mvp_Transform * (transformedPosition * vec4 (Scale, 1));
}

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3-mid/opengl/assets/shader/lit_colored_text.frag Normal file
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#version 140
struct light
{
vec4 Site;
vec3 Color;
float Attenuation;
float ambient_Coefficient;
float cone_Angle;
vec3 cone_Direction;
};
uniform mat4 model_Transform;
uniform mat3 inverse_model_Rotation;
uniform vec3 camera_Site;
uniform vec3 specular_Color; // The materials specular color.
uniform sampler2D Texture;
uniform int light_Count;
uniform light Lights [10];
in vec3 frag_Site;
in vec3 frag_Normal;
in vec4 frag_Color;
in vec2 frag_Coords;
in float frag_Shine;
out vec4 final_Color;
vec3
apply_Light (light Light,
vec3 surface_Color,
vec3 Normal,
vec3 surface_Site,
vec3 Surface_to_Camera)
{
vec3 Surface_to_Light;
float Attenuation = 1.0;
if (Light.Site.w == 0.0)
{
// Directional light.
//
Surface_to_Light = normalize (-Light.Site.xyz);
Attenuation = 1.0; // No attenuation for directional lights.
}
else
{
// Difuse light.
//
vec3 Surface_to_Light_vector = Light.Site.xyz - surface_Site;
float Distance_to_Light = length (Surface_to_Light_vector);
Surface_to_Light = normalize (Surface_to_Light_vector);
Attenuation = 1.0
/ ( 1.0
+ Light.Attenuation
* pow (Distance_to_Light, 2));
// Cone restrictions which affects attenuation.
//
float Light_to_Surface_Angle = degrees (acos (dot (-Surface_to_Light,
normalize (Light.cone_Direction))));
if (Light_to_Surface_Angle > Light.cone_Angle)
{
Attenuation = 0.0;
}
}
vec3 lit_surface_Color = surface_Color * Light.Color;
vec3 Ambient = Light.ambient_Coefficient * lit_surface_Color;
float diffuse_Coefficient = max (0.0,
dot (Normal,
Surface_to_Light));
vec3 Diffuse = diffuse_Coefficient * lit_surface_Color;
float specular_Coefficient = 0.0;
if (diffuse_Coefficient > 0.0)
specular_Coefficient = pow (max (0.0,
dot (Surface_to_Camera,
reflect (-Surface_to_Light,
Normal))),
frag_Shine);
vec3 Specular = specular_Coefficient * specular_Color * Light.Color;
return Ambient + Attenuation * (Diffuse + Specular); // Linear color (before gamma correction).
}
void
main()
{
vec4 texture_Color = texture (Texture, frag_Coords);
vec4 surface_Color = vec4 (mix (texture_Color.rgb,
frag_Color .rgb,
0.5),
texture_Color.a
* frag_Color .a);
vec3 surface_Site = vec3 ( model_Transform
* vec4 (frag_Site, 1));
vec3 Surface_to_Camera = normalize (camera_Site - surface_Site);
vec3 Normal = normalize ( frag_Normal
* inverse_model_Rotation);
// Combine color from all the lights.
//
vec3 linear_Color = vec3 (0);
for (int i = 0; i < light_Count; ++i)
{
linear_Color += apply_Light (Lights [i],
surface_Color.rgb,
Normal,
surface_Site,
Surface_to_Camera);
}
vec3 Gamma = vec3 (1.0 / 2.2);
final_Color = vec4 (pow (linear_Color, // Final color (after gamma correction).
Gamma),
surface_Color.a);
}

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3-mid/opengl/assets/shader/lit_colored_textured.frag Normal file
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#version 140
struct light
{
vec4 Site;
vec3 Color;
float Attenuation;
float ambient_Coefficient;
float cone_Angle;
vec3 cone_Direction;
};
uniform mat4 model_Transform;
uniform mat3 inverse_model_Rotation;
uniform vec3 camera_Site;
uniform vec3 specular_Color; // The materials specular color.
uniform sampler2D Texture;
uniform int light_Count;
uniform light Lights [10];
in vec3 frag_Site;
in vec3 frag_Normal;
in vec4 frag_Color;
in vec2 frag_Coords;
in float frag_Shine;
out vec4 final_Color;
vec3
apply_Light (light Light,
vec3 surface_Color,
vec3 Normal,
vec3 surface_Site,
vec3 Surface_to_Camera)
{
vec3 Surface_to_Light;
float Attenuation = 1.0;
if (Light.Site.w == 0.0)
{
// Directional light.
//
Surface_to_Light = normalize (-Light.Site.xyz);
Attenuation = 1.0; // No attenuation for directional lights.
}
else
{
// Point light.
//
vec3 Surface_to_Light_vector = Light.Site.xyz - surface_Site;
float Distance_to_Light = length (Surface_to_Light_vector);
Surface_to_Light = normalize (Surface_to_Light_vector);
Attenuation = 1.0
/ ( 1.0
+ Light.Attenuation
* pow (Distance_to_Light, 2));
// Cone restrictions which affects attenuation.
//
float Light_to_Surface_Angle = degrees (acos (dot (-Surface_to_Light,
normalize (Light.cone_Direction))));
if (Light_to_Surface_Angle > Light.cone_Angle)
{
Attenuation = 0.0;
}
}
vec3 lit_surface_Color = surface_Color * Light.Color;
vec3 Ambient = Light.ambient_Coefficient * lit_surface_Color;
float diffuse_Coefficient = max (0.0,
dot (Normal,
Surface_to_Light));
vec3 Diffuse = diffuse_Coefficient * lit_surface_Color;
float specular_Coefficient = 0.0;
if (diffuse_Coefficient > 0.0)
specular_Coefficient = pow (max (0.0,
dot (Surface_to_Camera,
reflect (-Surface_to_Light,
Normal))),
frag_Shine);
vec3 Specular = specular_Coefficient * specular_Color * Light.Color;
return Ambient + Attenuation * (Diffuse + Specular); // Linear color (before gamma correction).
}
void
main()
{
vec3 surface_Site = vec3 ( model_Transform
* vec4 (frag_Site, 1));
vec4 surface_Color = mix (texture (Texture, frag_Coords),
frag_Color,
0.5);
vec3 Surface_to_Camera = normalize (camera_Site - surface_Site);
vec3 Normal = normalize (frag_Normal * inverse_model_Rotation);
// Combine color from all the lights.
//
vec3 linear_Color = vec3 (0);
for (int i = 0; i < light_Count; ++i)
{
linear_Color += apply_Light (Lights [i],
surface_Color.rgb,
Normal,
surface_Site,
Surface_to_Camera);
}
vec3 Gamma = vec3 (1.0 / 2.2);
final_Color = vec4 (pow (linear_Color, // Final color (after gamma correction).
Gamma),
surface_Color.a);
}

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3-mid/opengl/assets/shader/lit_colored_textured.vert Normal file
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#version 140
uniform mat4 mvp_Transform;
uniform vec3 Scale;
in vec3 Site;
in vec3 Normal;
in vec4 Color;
in vec2 Coords;
in float Shine;
out vec3 frag_Site;
out vec3 frag_Normal;
out vec4 frag_Color;
out vec2 frag_Coords;
out float frag_Shine;
void main()
{
// Pass some variables to the fragment shader.
//
frag_Site = Site;
frag_Normal = Normal;
frag_Color = Color;
frag_Coords = Coords;
frag_Shine = Shine;
// Apply all matrix transformations to 'Site'.
//
gl_Position = mvp_Transform * vec4 (Site * Scale, 1);
}

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3-mid/opengl/assets/shader/lit_colored_textured_skinned.frag Normal file
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#version 140
struct light
{
vec4 Site;
vec3 Color;
float Attenuation;
float ambient_Coefficient;
float cone_Angle;
vec3 cone_Direction;
};
uniform mat4 model_Transform;
uniform mat3 inverse_model_Rotation;
uniform vec3 camera_Site;
uniform vec3 specular_Color; // The materials specular color.
uniform sampler2D Texture;
uniform int light_Count;
uniform light Lights [10];
in vec3 frag_Site;
in vec3 frag_Normal;
in vec4 frag_Color;
in vec2 frag_Coords;
in float frag_Shine;
out vec4 final_Color;
vec3
apply_Light (light Light,
vec3 surface_Color,
vec3 Normal,
vec3 surface_Site,
vec3 Surface_to_Camera)
{
vec3 Surface_to_Light;
float Attenuation = 1.0;
if (Light.Site.w == 0.0)
{
// Directional light.
//
Surface_to_Light = normalize (-Light.Site.xyz);
Attenuation = 1.0; // No attenuation for directional lights.
}
else
{
// Point light.
//
vec3 Surface_to_Light_vector = Light.Site.xyz - surface_Site;
float Distance_to_Light = length (Surface_to_Light_vector);
Surface_to_Light = normalize (Surface_to_Light_vector);
Attenuation = 1.0
/ ( 1.0
+ Light.Attenuation
* pow (Distance_to_Light, 2));
// Cone restrictions which affects attenuation.
//
float Light_to_Surface_Angle = degrees (acos (dot (-Surface_to_Light,
normalize (Light.cone_Direction))));
if (Light_to_Surface_Angle > Light.cone_Angle)
{
Attenuation = 0.0;
}
}
vec3 lit_surface_Color = surface_Color * Light.Color;
vec3 Ambient = Light.ambient_Coefficient * lit_surface_Color;
float diffuse_Coefficient = max (0.0,
dot (Normal,
Surface_to_Light));
vec3 Diffuse = diffuse_Coefficient * lit_surface_Color;
float specular_Coefficient = 0.0;
if (diffuse_Coefficient > 0.0)
specular_Coefficient = pow (max (0.0,
dot (Surface_to_Camera,
reflect (-Surface_to_Light,
Normal))),
frag_Shine);
vec3 Specular = specular_Coefficient * specular_Color * Light.Color;
return Ambient + Attenuation * (Diffuse + Specular); // Linear color (before gamma correction).
}
void
main()
{
vec3 surface_Site = vec3 ( model_Transform
* vec4 (frag_Site, 1));
vec4 surface_Color = mix (texture (Texture, frag_Coords),
frag_Color,
0.5);
vec3 Surface_to_Camera = normalize (camera_Site - surface_Site);
vec3 Normal = normalize ( frag_Normal
* inverse_model_Rotation);
// Combine color from all the lights.
//
vec3 linear_Color = vec3 (0);
for (int i = 0; i < light_Count; ++i)
{
linear_Color += apply_Light (Lights [i],
surface_Color.rgb,
Normal,
surface_Site,
Surface_to_Camera);
}
vec3 Gamma = vec3 (1.0 / 2.2);
final_Color = vec4 (pow (linear_Color, // Final color (after gamma correction).
Gamma),
surface_Color.a);
}

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3-mid/opengl/assets/shader/lit_colored_textured_skinned.vert Normal file
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#version 140
uniform mat4 mvp_Transform;
uniform vec3 Scale;
uniform mat4 bone_Matrices[120];
in vec3 Site;
in vec3 Normal;
in vec4 Color;
in vec2 Coords;
in float Shine;
in vec4 bone_Ids;
in vec4 bone_Weights;
out vec3 frag_Site;
out vec3 frag_Normal;
out vec4 frag_Color;
out vec2 frag_Coords;
out float frag_Shine;
const float c_zero = 0.0;
const float c_one = 1.0;
void main()
{
vec4 transformedPosition = vec4 (0.0);
vec3 transformedNormal = vec3 (0.0);
if (int (bone_Ids.x) == 0) // No bones affect this vertex.
{
transformedPosition = vec4 (Site, c_one);
transformedNormal = Normal;
}
else
{
// Bone 1.
//
mat4 m44 = bone_Matrices [int (bone_Ids.x) - 1];
// Transform the offset by bone 1.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.x;
mat3 m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 1.
transformedNormal += m33 * Normal * bone_Weights.x;
if (int (bone_Ids.y) != 0)
{
// Bone 2.
//
m44 = bone_Matrices [int (bone_Ids.y) - 1];
// Transform the offset by bone 2.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.y;
m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 2.
transformedNormal += m33 * Normal * bone_Weights.y;
if (int (bone_Ids.z) != 0)
{
// Bone 3.
//
m44 = bone_Matrices [int (bone_Ids.z) - 1];
// Transform the offset by bone 3.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.z;
m33 = mat3(m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 3.
transformedNormal += m33 * Normal * bone_Weights.z;
if (int (bone_Ids.w) != 0)
{
// Bone 4.
//
m44 = bone_Matrices [int (bone_Ids.w) - 1];
// Transform the offset by bone 4.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.w;
m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 4.
transformedNormal += m33 * Normal * bone_Weights.w;
}
}
}
}
// Pass some variables to the fragment shader.
//
frag_Site = Site;
frag_Normal = normalize (transformedNormal);
frag_Color = Color;
frag_Coords = Coords;
frag_Shine = Shine;
// Apply all matrix transformations to 'Site'.
//
gl_Position = mvp_Transform * (transformedPosition * vec4 (Scale, 1));
}

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3-mid/opengl/assets/shader/lit_textured.frag Normal file
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#version 140
struct light
{
vec4 Site;
vec3 Color;
float Attenuation;
float ambient_Coefficient;
float cone_Angle;
vec3 cone_Direction;
};
uniform mat4 model_Transform;
uniform mat3 inverse_model_Rotation;
uniform vec3 camera_Site;
uniform vec3 specular_Color; // The materials specular color.
uniform sampler2D Texture;
uniform int light_Count;
uniform light Lights [10];
in vec3 frag_Site;
in vec3 frag_Normal;
in vec2 frag_Coords;
in float frag_Shine;
out vec4 final_Color;
vec3
apply_Light (light Light,
vec3 surface_Color,
vec3 Normal,
vec3 surface_Site,
vec3 Surface_to_Camera)
{
vec3 Surface_to_Light;
float Attenuation = 1.0;
if (Light.Site.w == 0.0)
{
// Directional light.
//
Surface_to_Light = normalize (-Light.Site.xyz);
Attenuation = 1.0; // No attenuation for directional lights.
}
else
{
// Point light.
//
vec3 Surface_to_Light_vector = Light.Site.xyz - surface_Site;
float Distance_to_Light = length (Surface_to_Light_vector);
Surface_to_Light = normalize (Surface_to_Light_vector);
Attenuation = 1.0
/ ( 1.0
+ Light.Attenuation
* pow (Distance_to_Light, 2));
// Cone restrictions which affects attenuation.
//
float Light_to_Surface_Angle = degrees (acos (dot (-Surface_to_Light,
normalize (Light.cone_Direction))));
if (Light_to_Surface_Angle > Light.cone_Angle)
{
Attenuation = 0.0;
}
}
vec3 lit_surface_Color = surface_Color * Light.Color;
vec3 Ambient = Light.ambient_Coefficient * lit_surface_Color;
float diffuse_Coefficient = max (0.0,
dot (Normal,
Surface_to_Light));
vec3 Diffuse = diffuse_Coefficient * lit_surface_Color;
float specular_Coefficient = 0.0;
if (diffuse_Coefficient > 0.0)
specular_Coefficient = pow (max (0.0,
dot (Surface_to_Camera,
reflect (-Surface_to_Light,
Normal))),
frag_Shine);
vec3 Specular = specular_Coefficient * specular_Color * Light.Color;
return Ambient + Attenuation * (Diffuse + Specular); // Linear color (before gamma correction).
}
void
main()
{
vec3 surface_Site = vec3 ( model_Transform
* vec4 (frag_Site, 1));
vec4 surface_Color = texture (Texture, frag_Coords);
vec3 Surface_to_Camera = normalize (camera_Site - surface_Site);
vec3 Normal = normalize ( frag_Normal
* inverse_model_Rotation);
// Combine color from all the lights.
//
vec3 linear_Color = vec3 (0);
for (int i = 0; i < light_Count; ++i)
{
linear_Color += apply_Light (Lights [i],
surface_Color.rgb,
Normal,
surface_Site,
Surface_to_Camera);
}
vec3 Gamma = vec3 (1.0 / 2.2);
final_Color = vec4 (pow (linear_Color, // Final color (after gamma correction).
Gamma),
surface_Color.a);
}

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3-mid/opengl/assets/shader/lit_textured.vert Normal file
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#version 140
uniform mat4 mvp_Transform;
uniform vec3 Scale;
in vec3 Site;
in vec3 Normal;
in vec2 Coords;
in float Shine;
out vec3 frag_Site;
out vec3 frag_Normal;
out vec2 frag_Coords;
out float frag_Shine;
void main()
{
// Pass some variables to the fragment shader.
//
frag_Site = Site;
frag_Normal = Normal;
frag_Coords = Coords;
frag_Shine = Shine;
// Apply all matrix transformations to 'Site'.
//
gl_Position = mvp_Transform * vec4 (Site * Scale, 1);
}

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3-mid/opengl/assets/shader/lit_textured_skinned.frag Normal file
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#version 140
struct light
{
vec4 Site;
vec3 Color;
float Attenuation;
float ambient_Coefficient;
float cone_Angle;
vec3 cone_Direction;
};
uniform mat4 model_Transform;
uniform mat3 inverse_model_Rotation;
uniform vec3 camera_Site;
uniform vec3 specular_Color; // The materials specular color.
uniform sampler2D Texture;
uniform int light_Count;
uniform light Lights [10];
in vec3 frag_Site;
in vec3 frag_Normal;
in vec2 frag_Coords;
in float frag_Shine;
out vec4 final_Color;
vec3
apply_Light (light Light,
vec3 surface_Color,
vec3 Normal,
vec3 surface_Site,
vec3 Surface_to_Camera)
{
vec3 Surface_to_Light;
float Attenuation = 1.0;
if (Light.Site.w == 0.0)
{
// Directional light.
//
Surface_to_Light = normalize (-Light.Site.xyz);
Attenuation = 1.0; // No attenuation for directional lights.
}
else
{
// Point light.
//
vec3 Surface_to_Light_vector = Light.Site.xyz - surface_Site;
float Distance_to_Light = length (Surface_to_Light_vector);
Surface_to_Light = normalize (Surface_to_Light_vector);
Attenuation = 1.0
/ ( 1.0
+ Light.Attenuation
* pow (Distance_to_Light, 2));
// Cone restrictions which affects attenuation.
//
float Light_to_Surface_Angle = degrees (acos (dot (-Surface_to_Light,
normalize (Light.cone_Direction))));
if (Light_to_Surface_Angle > Light.cone_Angle)
{
Attenuation = 0.0;
}
}
vec3 lit_surface_Color = surface_Color * Light.Color;
vec3 Ambient = Light.ambient_Coefficient * lit_surface_Color;
float diffuse_Coefficient = max (0.0,
dot (Normal,
Surface_to_Light));
vec3 Diffuse = diffuse_Coefficient * lit_surface_Color;
float specular_Coefficient = 0.0;
if (diffuse_Coefficient > 0.0)
specular_Coefficient = pow (max (0.0,
dot (Surface_to_Camera,
reflect (-Surface_to_Light,
Normal))),
frag_Shine);
vec3 Specular = specular_Coefficient * specular_Color * Light.Color;
return Ambient + Attenuation * (Diffuse + Specular); // Linear color (before gamma correction).
}
void
main()
{
vec3 surface_Site = vec3 ( model_Transform
* vec4 (frag_Site, 1));
vec4 surface_Color = texture (Texture, frag_Coords);
vec3 Surface_to_Camera = normalize (camera_Site - surface_Site);
vec3 Normal = normalize ( frag_Normal
* inverse_model_Rotation);
// Combine color from all the lights.
//
vec3 linear_Color = vec3 (0);
for (int i = 0; i < light_Count; ++i)
{
linear_Color += apply_Light (Lights [i],
surface_Color.rgb,
Normal,
surface_Site,
Surface_to_Camera);
}
vec3 Gamma = vec3 (1.0 / 2.2);
final_Color = vec4 (pow (linear_Color, // Final color (after gamma correction).
Gamma),
surface_Color.a);
}

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3-mid/opengl/assets/shader/lit_textured_skinned.vert Normal file
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#version 140
uniform mat4 mvp_Transform;
uniform vec3 Scale;
uniform mat4 bone_Matrices[120];
in vec3 Site;
in vec3 Normal;
in vec2 Coords;
in float Shine;
in vec4 bone_Ids;
in vec4 bone_Weights;
out vec3 frag_Site;
out vec3 frag_Normal;
out vec2 frag_Coords;
out float frag_Shine;
const float c_zero = 0.0;
const float c_one = 1.0;
void main()
{
vec4 transformedPosition = vec4 (0.0);
vec3 transformedNormal = vec3 (0.0);
if (int (bone_Ids.x) == 0) // No bones affect this vertex.
{
transformedPosition = vec4 (Site, c_one);
transformedNormal = Normal;
}
else
{
// Bone 1.
//
mat4 m44 = bone_Matrices [int (bone_Ids.x) - 1];
// Transform the offset by bone 1.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.x;
mat3 m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 1.
transformedNormal += m33 * Normal * bone_Weights.x;
if (int(bone_Ids.y) != 0)
{
// Bone 2.
//
m44 = bone_Matrices [int (bone_Ids.y) - 1];
// Transform the offset by bone 2.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.y;
m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 2.
transformedNormal += m33 * Normal * bone_Weights.y;
if (int (bone_Ids.z) != 0)
{
// Bone 3.
//
m44 = bone_Matrices [int (bone_Ids.z) - 1];
// Transform the offset by bone 3.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.z;
m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 3.
transformedNormal += m33 * Normal * bone_Weights.z;
if (int (bone_Ids.w) != 0)
{
// Bone 4.
//
m44 = bone_Matrices [int (bone_Ids.w) - 1];
// Transform the offset by bone 4.
transformedPosition += m44 * vec4 (Site, c_one) * bone_Weights.w;
m33 = mat3 (m44[0].xyz,
m44[1].xyz,
m44[2].xyz);
// Transform the normal by bone 4.
transformedNormal += m33 * Normal * bone_Weights.w;
}
}
}
}
// Pass some variables to the fragment shader.
//
frag_Site = transformedPosition.xyz * Scale;
frag_Normal = normalize (transformedNormal);
frag_Coords = Coords;
frag_Shine = Shine;
// Apply all matrix transformations to 'Site'.
//
gl_Position = mvp_Transform * transformedPosition;
gl_Position = mvp_Transform * (transformedPosition * vec4 (Scale, 1));
}

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3-mid/opengl/assets/shader/templates/directional_light.vert-template Normal file
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#version 120
struct directional_light
{
vec3 direction; // Normalized light direction in eye space.
vec3 halfplane; // Normalized half-plane vector.
vec4 ambient_color;
vec4 diffuse_color;
vec4 specular_color;
bool is_on;
};
uniform mat3 inv_modelview_Matrix;
uniform directional_light uLights [8];
uniform float uShine;
attribute vec3 aNormal;
attribute vec4 aColor;
varying vec4 vColor;
const float c_zero = 0.0;
const float c_one = 1.0;
vec4 // Returns the computed color.
directional_light_color (in vec3 normal, // 'normal' has been transformed into eye space and normalized.
in directional_light light)
{
if (!light.is_on)
return vec4 (0.0, 0.0, 0.0, 0.0);
vec4 computed_color = vec4 (c_zero, c_zero, c_zero, c_zero);
float NdotL; // Dot product of normal and light direction.
float NdotH; // Dot product of normal and half-plane vector.
NdotL = max (c_zero, dot (normal, light.direction));
NdotH = max (c_zero, dot (normal, light.halfplane));
computed_color += ( light.ambient_color * aColor);
computed_color += (NdotL * light.diffuse_color * aColor);
if (NdotH > c_zero)
computed_color += (pow (NdotH, uShine) * aColor * light.specular_color);
return computed_color;
}
void main()
{
vec3 light_Normal = normalize (aNormal) * inv_modelview_Matrix;
vColor = vec4 (0.0, 0.0, 0.0, 0.0);
for (int i = 0; i < 8; i++)
{
vColor += directional_light_color (light_Normal, uLights [i]);
}
}

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3-mid/opengl/assets/shader/textured.frag Normal file
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#version 140
uniform sampler2D sTexture;
varying vec4 vColor;
varying vec2 vCoords;
void main()
{
gl_FragColor = texture2D (sTexture, vCoords) * vColor; // Modulate light color with texture.
}

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3-mid/opengl/assets/shader/textured.vert Normal file
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#version 140
uniform mat4 mvp_Transform;
uniform vec3 Scale;
attribute vec3 Site;
attribute vec2 Coords;
varying vec4 vColor;
varying vec2 vCoords;
const float c_zero = 0.0;
const float c_one = 1.0;
void main()
{
gl_Position = mvp_Transform * vec4 (Site * Scale, 1.0);
vColor = vec4 (1.0, 1.0, 1.0, 1.0);
vCoords = Coords;
}

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