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ENABLE_GCODE_VIEWER -> Improvements in shaders for options

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enricoturri1966 2020-06-01 08:55:44 +02:00
parent 71db69ef41
commit 707268d41d
3 changed files with 27 additions and 37 deletions
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26
resources/shaders/options_120_flat.fs
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@ -5,31 +5,23 @@ uniform vec3 uniform_color;
uniform float percent_outline_radius;
uniform float percent_center_radius;
vec4 hardcoded_color(float sq_radius, vec3 color)
vec4 hardcoded_color(float radius, vec3 color)
{
if ((sq_radius < 0.005625) || (sq_radius > 0.180625))
return vec4(0.5 * color, 1.0);
else
return vec4(color, 1.0);
return ((radius < 0.15) || (radius > 0.85)) ? vec4(0.5 * color, 1.0) : vec4(color, 1.0);
}
vec4 customizable_color(float sq_radius, vec3 color)
vec4 customizable_color(float radius, vec3 color)
{
float in_radius = 0.5 * percent_center_radius;
float out_radius = 0.5 * (1.0 - percent_outline_radius);
if ((sq_radius < in_radius * in_radius) || (sq_radius > out_radius * out_radius))
return vec4(0.5 * color, 1.0);
else
return vec4(color, 1.0);
return ((radius < percent_center_radius) || (radius > 1.0 - percent_outline_radius)) ?
vec4(0.5 * color, 1.0) : vec4(color, 1.0);
}
void main()
{
vec2 pos = gl_PointCoord - vec2(0.5);
float sq_radius = dot(pos, pos);
if (sq_radius > 0.25)
vec2 pos = (gl_PointCoord - 0.5) * 2.0;
float radius = length(pos);
if (radius > 1.0)
discard;
gl_FragColor = customizable_color(sq_radius, uniform_color);
// gl_FragColor = hardcoded_color(sq_radius, uniform_color);
gl_FragColor = customizable_color(radius, uniform_color);
}

31
resources/shaders/options_120_solid.fs
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@ -17,28 +17,26 @@ const vec3 LIGHT_FRONT_DIR = vec3(0.6985074, 0.1397015, 0.6985074);
uniform vec3 uniform_color;
// x = width, y = height
uniform ivec2 viewport_sizes;
uniform ivec4 viewport;
uniform float point_size;
uniform mat4 inv_proj_matrix;
varying vec3 eye_center;
float radius = 0.5;
// x = tainted, y = specular;
vec2 intensity;
float radius = 0.5 * point_size;
vec3 eye_position_from_fragment()
{
// Convert screen coordinates to normalized device coordinates (NDC)
vec4 ndc = vec4(
(gl_FragCoord.x / viewport_sizes.x - 0.5) * 2.0,
(gl_FragCoord.y / viewport_sizes.y - 0.5) * 2.0,
(gl_FragCoord.z - 0.5) * 2.0,
1.0);
vec4 ndc = vec4((gl_FragCoord.x / viewport.z - 0.5) * 2.0,
(gl_FragCoord.y / viewport.w - 0.5) * 2.0,
(gl_FragCoord.z - 0.5) * 2.0,
gl_FragCoord.w);
// Convert NDC throuch inverse clip coordinates to view coordinates
vec4 clip = inv_proj_matrix * ndc;
return (clip / clip.w).xyz;
return clip.xyz;
}
vec3 eye_position_on_sphere(vec3 eye_fragment_position)
@ -67,21 +65,22 @@ vec4 on_sphere_color(vec3 eye_on_sphere_position)
NdotL = max(dot(eye_normal, LIGHT_FRONT_DIR), 0.0);
intensity.x += NdotL * LIGHT_FRONT_DIFFUSE;
return vec4(vec3(intensity.y, intensity.y, intensity.y) + uniform_color.rgb * intensity.x, 1.0);
return vec4(intensity + uniform_color.rgb * intensity.x, 1.0);
// return vec4(vec3(intensity.y) + uniform_color.rgb * intensity.x, 1.0);
}
float fragment_depth(vec3 eye_pos)
{
vec4 clip_pos = gl_ProjectionMatrix * vec4(eye_pos, 1.0);
float ndc_depth = clip_pos.z / clip_pos.w;
return (((gl_DepthRange.far - gl_DepthRange.near) * ndc_depth) + gl_DepthRange.near + gl_DepthRange.far) / 2.0;
return ((gl_DepthRange.far - gl_DepthRange.near) * ndc_depth + gl_DepthRange.near + gl_DepthRange.far) / 2.0;
}
void main()
{
vec2 pos = gl_PointCoord - vec2(0.5);
float sq_radius = dot(pos, pos);
if (sq_radius > 0.25)
vec2 pos = (gl_PointCoord - 0.5) * 2.0;
float radius = length(pos);
if (radius > 1.0)
discard;
vec3 eye_on_sphere_position = eye_position_on_sphere(eye_position_from_fragment());