bullet3/examples/OpenGLWindow/Shaders/pointSpritePS.glsl

38 lines
681 B
GLSL

#version 330
precision highp float;
in Fragment
{
vec4 color;
} fragment;
in vec3 ambient;
out vec4 color;
void main_textured(void)
{
color = fragment.color;//texture2D(Diffuse,vert.texcoord);//fragment.color;
}
void main(void)
{
vec3 N;
N.xy = gl_PointCoord.st*vec2(2.0, -2.0) + vec2(-1.0, 1.0);
float mag = dot(N.xy, N.xy);
if (mag > 1.0) discard;
vec4 texel = fragment.color;//vec4(1,0,0,1);//fragment.color*texture(Diffuse,vert.texcoord);//fragment.color;
vec3 ct;
float at,af;
af = 1.0;
ct = texel.rgb;
at = texel.a;
vec3 lightDir= vec3(1,0,0);
float diffuse = max(0.0, dot(lightDir, N));
color = vec4(ct * diffuse, at * af);
}