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Code Issues 134 Wiki Activity

shadow works

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VB
2017-07-02 00:10:45 +02:00
parent 4b3d038c2b
commit 3a02a65ada
10 changed files with 170 additions and 33 deletions
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15
shaders/blinnphong.frag
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@@ -23,10 +23,12 @@ struct light_s
in vec3 f_normal;
in vec2 f_coord;
in vec3 f_pos;
in vec4 f_light_pos;
out vec4 color;
uniform sampler2D tex;
uniform sampler2D shadowmap;
uniform vec3 ambient;
uniform vec3 emission;
@@ -37,6 +39,16 @@ uniform float specular;
uniform light_s lights[8];
uniform uint lights_count;
float calc_shadow()
{
vec3 coords = f_light_pos.xyz / f_light_pos.w;
coords = coords * 0.5 + 0.5;
float closest_depth = texture(shadowmap, coords.xy).r;
float current_depth = coords.z;
float shadow = current_depth > closest_depth ? 0.0 : 1.0;
return shadow;
}
vec3 apply_fog(vec3 color)
{
float sun_amount = 0.0;
@@ -90,6 +102,7 @@ float calc_dir_light(light_s light)
void main()
{
float shadow = calc_shadow();
vec3 result = ambient * 0.3 + emission;
for (uint i = 0U; i < lights_count; i++)
{
@@ -103,7 +116,7 @@ void main()
else if (light.type == LIGHT_DIR)
part = calc_dir_light(light);
result += light.color * part;
result += light.color * part * shadow;
}
vec4 tex_color = texture(tex, f_coord);