51 lines
1.1 KiB
Plaintext
51 lines
1.1 KiB
Plaintext
|
#version 150 core
|
||
|
|
|
||
|
|
uniform sampler2D uColor;
|
||
|
|
uniform sampler2D uNormal;
|
||
|
|
uniform sampler2D uDepth;
|
||
|
|
|
||
|
|
#define USE_SAMPLER2D_SHADOW 1
|
||
|
|
|
||
|
|
#ifdef USE_SAMPLER2D_SHADOW
|
||
|
|
uniform sampler2DShadow uShadowMap;
|
||
|
|
#else
|
||
|
|
uniform sampler2D uShadowMap;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
uniform sampler2D uPosition;
|
||
|
|
uniform vec3 uViewPosition;
|
||
|
|
|
||
|
|
uniform vec3 uLightDirection;
|
||
|
|
uniform mat4 uLightSpaceMatrix;
|
||
|
|
|
||
|
|
in vec2 ioFragTexCoords;
|
||
|
|
|
||
|
|
out vec3 outColor;
|
||
|
|
|
||
|
|
void main() {
|
||
|
|
vec3 color = texture(uColor, ioFragTexCoords).rgb;
|
||
|
|
vec3 normal = texture (uNormal, ioFragTexCoords).xyz;
|
||
|
|
float depth = texture (uDepth, ioFragTexCoords).r;
|
||
|
|
vec3 position = texture (uPosition, ioFragTexCoords).xyz;
|
||
|
|
|
||
|
|
// ambient lighting
|
||
|
|
float ambient_strength = 0.2;
|
||
|
|
vec3 ambient = ambient_strength * color;
|
||
|
|
|
||
|
|
vec3 light_dir = normalize(uLightDirection);
|
||
|
|
|
||
|
|
// diffuse lighting
|
||
|
|
float diff = max(dot(normal, light_dir), 0.0);
|
||
|
|
vec3 diffuse = diff * color;
|
||
|
|
|
||
|
|
// specular lighting
|
||
|
|
vec3 view_dir = normalize(-position);
|
||
|
|
vec3 halfway_dir = normalize(light_dir + view_dir);
|
||
|
|
|
||
|
|
float spec = pow(max(dot(normal, halfway_dir), 0.0), 32);
|
||
|
|
vec3 specular = spec * vec3(0.5);
|
||
|
|
|
||
|
|
// shadow
|
||
|
|
outColor = ambient + (diffuse + specular);
|
||
|
|
}
|