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Make code of shaders constexpr
This commit is contained in:
Filip Gawin
parent
ec7091b2d7
commit
fe3cb2d70c
@ -1,327 +1,2 @@
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#include "render/GameShaders.hpp"
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namespace GameShaders {
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const char* WaterHQ::VertexShader = R"(
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#version 330
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layout(location = 0) in vec2 position;
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out vec2 TexCoords;
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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uniform mat4 inverseVP;
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uniform float time;
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uniform vec2 waveParams;
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uniform sampler2D data;
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vec3 waterNormal = vec3(0.0, 0.0, 1.0);
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vec3 planeIntercept( vec3 start, vec3 dir, float height )
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{
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float dist = (height - dot(waterNormal, start)) / dot(dir, waterNormal);
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if( dist < 0.0 )
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{
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return start + dir * dist;
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}
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else
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{
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// uh oh
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return vec3(0.0);
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}
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}
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void main()
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{
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TexCoords = position * vec2(0.5,0.5) + vec2(0.5);
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mat4 vp = projection * view;
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mat4 projector = inverseVP;
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mat3 rot = mat3(view);
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vec3 ray = vec3(-position.x, -position.y, projection[0][0] ) * rot;
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float plane = texture( data, TexCoords ).r;
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vec3 ws = planeIntercept( campos.xyz, ray, plane );
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ws.z = ws.z + (-1.0+(sin(time + (ws.x + ws.y) * waveParams.x)) * waveParams.y);
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TexCoords = ws.xy / 5.0;
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gl_Position = vp * vec4(ws, 1.0);
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})";
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const char* WaterHQ::FragmentShader = R"(
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#version 330
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in vec3 Normal;
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in vec2 TexCoords;
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uniform sampler2D tex;
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out vec4 outColour;
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in vec3 test;
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void main() {
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vec4 c = texture(tex, TexCoords);
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outColour = c;
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})";
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const char* Mask3D::VertexShader = R"(
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#version 330
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layout(location = 0) in vec3 position;
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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out vec3 pp;
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void main()
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{
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pp = position;
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gl_Position = projection * view * vec4(position, 1.0);
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})";
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const char* Mask3D::FragmentShader = R"(
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#version 330
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in vec3 pp;
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out vec4 outColour;
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void main() {
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outColour = vec4(pp.z, 0.0, 0.0, 1.0);
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})";
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const char* Sky::VertexShader = R"(
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#version 330
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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layout(location = 0) in vec3 position;
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out vec3 Position;
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void main() {
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Position = position;
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vec4 viewsp = projection * mat4(mat3(view)) * vec4(position, 1.0);
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viewsp.z = viewsp.w - 0.000001;
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gl_Position = viewsp;
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})";
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const char* Sky::FragmentShader = R"(
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#version 330
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in vec3 Position;
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uniform vec4 TopColor;
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uniform vec4 BottomColor;
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out vec4 outColour;
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void main() {
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outColour = mix(BottomColor, TopColor, clamp(Position.z, 0, 1));
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})";
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const char* WorldObject::VertexShader = R"(
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#version 330
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layout(location = 0) in vec3 position;
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layout(location = 1) in vec3 normal;
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layout(location = 2) in vec4 _colour;
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layout(location = 3) in vec2 texCoords;
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out vec3 Normal;
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out vec2 TexCoords;
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out vec4 Colour;
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out vec4 WorldSpace;
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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layout(std140) uniform ObjectData {
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mat4 model;
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vec4 colour;
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float diffusefac;
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float ambientfac;
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float visibility;
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};
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void main()
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{
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Normal = normal;
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TexCoords = texCoords;
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Colour = _colour;
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vec4 worldspace = model * vec4(position, 1.0);
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vec4 viewspace = view * worldspace;
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gl_Position = projection * viewspace;
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WorldSpace = vec4(worldspace.xyz, length(worldspace.xyz - campos.xyz));
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})";
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const char* WorldObject::FragmentShader = R"(
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#version 330
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in vec3 Normal;
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in vec2 TexCoords;
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in vec4 Colour;
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in vec4 WorldSpace;
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uniform sampler2D tex;
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out vec4 fragOut;
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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layout(std140) uniform ObjectData {
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mat4 model;
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vec4 colour;
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float diffusefac;
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float ambientfac;
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float visibility;
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};
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float alphaThreshold = (1.0/255.0);
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void main()
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{
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// Only the visibility parameter invokes the screen door.
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vec4 diffuse = Colour;
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diffuse.rgb += ambient.rgb*ambientfac;
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diffuse *= colour;
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diffuse *= texture(tex, TexCoords);
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if(diffuse.a <= alphaThreshold) discard;
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float fog = 1.0 - clamp( (fogEnd-WorldSpace.w)/(fogEnd-fogStart), 0.0, 1.0 );
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fragOut = vec4(mix(diffuse.rgb, fogColor.rgb, fog), diffuse.a);
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})";
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const char* Particle::FragmentShader = R"(
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#version 330
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in vec3 Normal;
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in vec2 TexCoords;
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in vec4 Colour;
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uniform sampler2D tex;
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out vec4 outColour;
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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layout(std140) uniform ObjectData {
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mat4 model;
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vec4 colour;
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float diffusefac;
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float ambientfac;
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float visibility;
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};
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#define ALPHA_DISCARD_THRESHOLD 0.01
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void main()
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{
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vec4 c = texture(tex, TexCoords);
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c.a = clamp(0, length(c.rgb/length(vec3(1,1,1))), 1);
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if(c.a <= ALPHA_DISCARD_THRESHOLD) discard;
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float fogZ = (gl_FragCoord.z / gl_FragCoord.w);
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float fogfac = clamp( (fogStart-fogZ)/(fogEnd-fogStart), 0.0, 1.0 );
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vec4 tint = vec4(colour.rgb, visibility);
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outColour = c * tint;
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})";
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const char* ScreenSpaceRect::VertexShader = R"(
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#version 330
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layout(location = 0) in vec2 position;
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out vec2 TexCoords;
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out vec4 Colour;
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uniform vec2 size;
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uniform vec2 offset;
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void main()
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{
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TexCoords = position * vec2(0.5,-0.5) + vec2(0.5);
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gl_Position = vec4(offset + position * size, 0.0, 1.0);
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})";
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const char* ScreenSpaceRect::FragmentShader = R"(
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#version 330
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in vec2 TexCoords;
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in vec4 Colour;
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uniform vec4 colour;
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uniform sampler2D tex;
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out vec4 outColour;
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void main()
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{
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vec4 c = texture(tex, TexCoords);
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// Set colour to 0, 0, 0, 1 for textured mode.
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outColour = vec4(colour.rgb + c.rgb, colour.a * c.a);
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})";
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const char* DefaultPostProcess::VertexShader = R"(
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#version 330
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layout(location = 0) in vec2 position;
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out vec2 TexCoords;
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void main()
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{
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TexCoords = position * vec2(0.5,0.5) + vec2(0.5);
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gl_Position = vec4(position, 0.0, 1.0);
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})";
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const char* DefaultPostProcess::FragmentShader = R"(
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#version 330
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in vec2 TexCoords;
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uniform sampler2D colour;
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uniform sampler2D data;
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out vec4 outColour;
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void main()
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{
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vec4 c = texture(colour, TexCoords);
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outColour = c;
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})";
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}
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@ -1,12 +1,6 @@
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#ifndef _RWENGINE_GAMESHADERS_HPP_
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#define _RWENGINE_GAMESHADERS_HPP_
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#define SHADER_VF(Name) \
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struct Name { \
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static const char* VertexShader; \
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static const char* FragmentShader; \
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}
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/**
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* @brief collection of shaders to make managing them a little easier.
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*/
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@ -15,26 +9,281 @@ namespace GameShaders {
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/**
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* High Quality Projected-Grid water shader
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*/
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SHADER_VF(WaterHQ);
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struct WaterHQ {
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static constexpr char const* VertexShader =
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R"(
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#version 330
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layout(location = 0) in vec2 position;
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out vec2 TexCoords;
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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uniform mat4 inverseVP;
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uniform float time;
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uniform vec2 waveParams;
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uniform sampler2D data;
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vec3 waterNormal = vec3(0.0, 0.0, 1.0);
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vec3 planeIntercept( vec3 start, vec3 dir, float height ) {
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float dist = (height - dot(waterNormal, start)) / dot(dir, waterNormal);
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if( dist < 0.0 ) {
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return start + dir * dist;
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}
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else {
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// uh oh
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return vec3(0.0);
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}
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}
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void main() {
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TexCoords = position * vec2(0.5,0.5) + vec2(0.5);
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mat4 vp = projection * view;
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mat4 projector = inverseVP;
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mat3 rot = mat3(view);
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vec3 ray = vec3(-position.x, -position.y, projection[0][0] ) * rot;
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float plane = texture( data, TexCoords ).r;
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vec3 ws = planeIntercept( campos.xyz, ray, plane );
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ws.z = ws.z + (-1.0+(sin(time + (ws.x + ws.y) * waveParams.x)) * waveParams.y);
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TexCoords = ws.xy / 5.0;
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gl_Position = vp * vec4(ws, 1.0);
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})";
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static constexpr char const* FragmentShader =
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R"(
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#version 330
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in vec3 Normal;
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in vec2 TexCoords;
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uniform sampler2D tex;
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out vec4 outColour;
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in vec3 test;
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void main() {
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vec4 c = texture(tex, TexCoords);
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outColour = c;
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})";
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};
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/**
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* Simple 3D masking shader
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*/
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SHADER_VF(Mask3D);
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struct Mask3D {
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static constexpr char const* VertexShader =
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R"(
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#version 330
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layout(location = 0) in vec3 position;
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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out vec3 pp;
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void main() {
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pp = position;
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gl_Position = projection * view * vec4(position, 1.0);
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})";
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static constexpr char const* FragmentShader =
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R"(
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#version 330
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in vec3 pp;
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out vec4 outColour;
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void main() {
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outColour = vec4(pp.z, 0.0, 0.0, 1.0);
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})";
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};
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struct Sky {
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static const char* VertexShader;
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static const char* FragmentShader;
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static constexpr char const* VertexShader =
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R"(
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#version 330
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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layout(location = 0) in vec3 position;
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out vec3 Position;
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void main() {
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Position = position;
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vec4 viewsp = projection * mat4(mat3(view)) * vec4(position, 1.0);
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viewsp.z = viewsp.w - 0.000001;
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gl_Position = viewsp;
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})";
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static constexpr char const* FragmentShader =
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R"(
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#version 330
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in vec3 Position;
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uniform vec4 TopColor;
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uniform vec4 BottomColor;
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out vec4 outColour;
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void main() {
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outColour = mix(BottomColor, TopColor, clamp(Position.z, 0, 1));
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})";
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};
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struct WorldObject {
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static const char* VertexShader;
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static const char* FragmentShader;
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static constexpr char const* VertexShader =
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R"(
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#version 330
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layout(location = 0) in vec3 position;
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layout(location = 1) in vec3 normal;
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layout(location = 2) in vec4 _colour;
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layout(location = 3) in vec2 texCoords;
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out vec3 Normal;
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out vec2 TexCoords;
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out vec4 Colour;
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out vec4 WorldSpace;
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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float fogStart;
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float fogEnd;
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};
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layout(std140) uniform ObjectData {
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mat4 model;
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vec4 colour;
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float diffusefac;
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float ambientfac;
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float visibility;
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};
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void main() {
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Normal = normal;
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TexCoords = texCoords;
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Colour = _colour;
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vec4 worldspace = model * vec4(position, 1.0);
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vec4 viewspace = view * worldspace;
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gl_Position = projection * viewspace;
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WorldSpace = vec4(worldspace.xyz, length(worldspace.xyz - campos.xyz));
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})";
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static constexpr char const* FragmentShader =
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R"(
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#version 330
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in vec3 Normal;
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in vec2 TexCoords;
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in vec4 Colour;
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in vec4 WorldSpace;
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uniform sampler2D tex;
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out vec4 fragOut;
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layout(std140) uniform SceneData {
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mat4 projection;
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mat4 view;
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vec4 ambient;
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vec4 dynamic;
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vec4 fogColor;
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vec4 campos;
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||||
float fogStart;
|
||||
float fogEnd;
|
||||
};
|
||||
|
||||
layout(std140) uniform ObjectData {
|
||||
mat4 model;
|
||||
vec4 colour;
|
||||
float diffusefac;
|
||||
float ambientfac;
|
||||
float visibility;
|
||||
};
|
||||
|
||||
float alphaThreshold = (1.0/255.0);
|
||||
|
||||
void main() {
|
||||
// Only the visibility parameter invokes the screen door.
|
||||
vec4 diffuse = Colour;
|
||||
diffuse.rgb += ambient.rgb*ambientfac;
|
||||
diffuse *= colour;
|
||||
diffuse *= texture(tex, TexCoords);
|
||||
if(diffuse.a <= alphaThreshold) discard;
|
||||
float fog = 1.0 - clamp( (fogEnd-WorldSpace.w)/(fogEnd-fogStart), 0.0, 1.0 );
|
||||
fragOut = vec4(mix(diffuse.rgb, fogColor.rgb, fog), diffuse.a);
|
||||
})";
|
||||
};
|
||||
|
||||
/** @brief Particle effect shaders, uses WorldObject::VertexShader */
|
||||
struct Particle {
|
||||
static const char* FragmentShader;
|
||||
static constexpr char const* FragmentShader =
|
||||
R"(
|
||||
#version 330
|
||||
|
||||
in vec3 Normal;
|
||||
in vec2 TexCoords;
|
||||
in vec4 Colour;
|
||||
uniform sampler2D tex;
|
||||
out vec4 outColour;
|
||||
|
||||
layout(std140) uniform SceneData {
|
||||
mat4 projection;
|
||||
mat4 view;
|
||||
vec4 ambient;
|
||||
vec4 dynamic;
|
||||
vec4 fogColor;
|
||||
vec4 campos;
|
||||
float fogStart;
|
||||
float fogEnd;
|
||||
};
|
||||
|
||||
layout(std140) uniform ObjectData {
|
||||
mat4 model;
|
||||
vec4 colour;
|
||||
float diffusefac;
|
||||
float ambientfac;
|
||||
float visibility;
|
||||
};
|
||||
|
||||
#define ALPHA_DISCARD_THRESHOLD 0.01
|
||||
|
||||
void main() {
|
||||
vec4 c = texture(tex, TexCoords);
|
||||
c.a = clamp(0, length(c.rgb/length(vec3(1,1,1))), 1);
|
||||
if(c.a <= ALPHA_DISCARD_THRESHOLD) discard;
|
||||
float fogZ = (gl_FragCoord.z / gl_FragCoord.w);
|
||||
float fogfac = clamp( (fogStart-fogZ)/(fogEnd-fogStart), 0.0, 1.0 );
|
||||
vec4 tint = vec4(colour.rgb, visibility);
|
||||
outColour = c * tint;
|
||||
})";
|
||||
};
|
||||
|
||||
/**
|
||||
@ -43,11 +292,63 @@ struct Particle {
|
||||
* Used to draw black bars, splash screens, fading etc.
|
||||
*/
|
||||
struct ScreenSpaceRect {
|
||||
static const char* VertexShader;
|
||||
static const char* FragmentShader;
|
||||
static constexpr char const* VertexShader =
|
||||
R"(
|
||||
#version 330
|
||||
|
||||
layout(location = 0) in vec2 position;
|
||||
out vec2 TexCoords;
|
||||
out vec4 Colour;
|
||||
uniform vec2 size;
|
||||
uniform vec2 offset;
|
||||
|
||||
void main() {
|
||||
TexCoords = position * vec2(0.5,-0.5) + vec2(0.5);
|
||||
gl_Position = vec4(offset + position * size, 0.0, 1.0);
|
||||
})";
|
||||
static constexpr char const* FragmentShader =
|
||||
R"(
|
||||
#version 330
|
||||
|
||||
in vec2 TexCoords;
|
||||
in vec4 Colour;
|
||||
uniform vec4 colour;
|
||||
uniform sampler2D tex;
|
||||
out vec4 outColour;
|
||||
|
||||
void main() {
|
||||
vec4 c = texture(tex, TexCoords);
|
||||
// Set colour to 0, 0, 0, 1 for textured mode.
|
||||
outColour = vec4(colour.rgb + c.rgb, colour.a * c.a);
|
||||
})";
|
||||
};
|
||||
|
||||
SHADER_VF(DefaultPostProcess);
|
||||
}
|
||||
struct DefaultPostProcess {
|
||||
static constexpr char const* VertexShader =
|
||||
R"(
|
||||
#version 330
|
||||
|
||||
layout(location = 0) in vec2 position;
|
||||
out vec2 TexCoords;
|
||||
void main() {
|
||||
TexCoords = position * vec2(0.5,0.5) + vec2(0.5);
|
||||
gl_Position = vec4(position, 0.0, 1.0);
|
||||
})";
|
||||
static constexpr char const* FragmentShader =
|
||||
R"(
|
||||
#version 330
|
||||
|
||||
in vec2 TexCoords;
|
||||
uniform sampler2D colour;
|
||||
uniform sampler2D data;
|
||||
|
||||
out vec4 outColour;
|
||||
|
||||
void main() {
|
||||
vec4 c = texture(colour, TexCoords);
|
||||
outColour = c;
|
||||
})";
|
||||
};
|
||||
} // namespace GameShaders
|
||||
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user