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Layers editing overlay rendering modified to use a texture drawn on a quad lying in a plane parallel to the camera viewport

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This commit is contained in:
Enrico Turri 2019-06-14 10:55:56 +02:00
parent 821ca0e36a
commit ed4b71eb15
2 changed files with 18 additions and 13 deletions
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9
resources/shaders/variable_layer_height.vs
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@ -15,6 +15,7 @@ const vec3 LIGHT_FRONT_DIR = vec3(0.6985074, 0.1397015, 0.6985074);
#define INTENSITY_AMBIENT 0.3
uniform mat4 volume_world_matrix;
uniform float object_max_z;
// x = tainted, y = specular;
varying vec2 intensity;
@ -42,6 +43,12 @@ void main()
intensity.x += NdotL * LIGHT_FRONT_DIFFUSE;
// Scaled to widths of the Z texture.
object_z = (volume_world_matrix * gl_Vertex).z;
if (object_max_z > 0.0)
// when rendering the overlay
object_z = object_max_z * gl_MultiTexCoord0.y;
else
// when rendering the volumes
object_z = (volume_world_matrix * gl_Vertex).z;
gl_Position = ftransform();
}